NNBR

nnbr-20260304NN, Inc.March 4, 20260000918541falseCharlotteNorth Carolina00009185412026-03-042026-03-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 4, 2026

NN, Inc. (Exact name of registrant as specified in its charter)

Delaware 001-39268 62-1096725 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.)

6210 Ardrey Kell Road, Suite 120 Charlotte, North Carolina 28277 (Address of principal executive offices)(Zip Code)

(980) 264-4300 (Registrant’s telephone number, including area code) (Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading symbolName of each exchange on which registered Common Stock, par value $0.01NNBRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company. ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 2.02    RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On March 4, 2026, NN, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the quarter and year ended December 31, 2025. The full text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K (the "Current Report"). Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), the information furnished pursuant to Item 2.02 of this Current Report (including Exhibit 99.1) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 7.01    REGULATION FD DISCLOSURE

On March 4, 2026, the Company posted a supplemental presentation to its website, https://investors.nninc.com/, which will be presented during its quarterly investor conference call on March 5, 2026, at 9:00 a.m. ET. The supplemental presentation is included as Exhibit 99.2 to this Current Report. Pursuant to the rules and regulations of the SEC, the information furnished pursuant to Item 7.01 of this Current Report (including Exhibit 99.2) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 9.01    FINANCIAL STATEMENTS AND EXHIBITS

(d)    Exhibits.

Exhibit No.  Description of Exhibit 99.1  Press Release issued by NN, Inc., dated March 4, 2026

99.2Earnings Presentation, dated March 5, 2026

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: March 4, 2026

NN, INC.

By:/s/ Christopher H. Bohnert Name:Christopher H. Bohnert Title:Senior Vice President and Chief Financial Officer

nnbr-202510290000918541falseCharlotteNorth Carolina8-K00009185412025-10-292025-10-2900009185412025-08-062025-08-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 29, 2025

NN, Inc. (Exact name of registrant as specified in its charter)

Delaware 001-39268 62-1096725 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.)

6210 Ardrey Kell Road, Suite 120 Charlotte, North Carolina 28277 (Address of principal executive offices)(Zip Code)

(980) 264-4300 (Registrant’s telephone number, including area code) (Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading symbolName of each exchange on which registered Common Stock, par value $0.01NNBRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company. ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 2.02    RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On October 29, 2025, NN, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the quarter ended September 30, 2025. The full text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K (the "Current Report"). Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), the information furnished pursuant to Item 2.02 of this Current Report (including Exhibit 99.1) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 7.01    REGULATION FD DISCLOSURE

On October 29, 2025, the Company posted a supplemental presentation to its website, https://investors.nninc.com/, which will be presented during its quarterly investor conference call on October 30, 2025, at 9:00 a.m. ET. The supplemental presentation is included as Exhibit 99.2 to this Current Report. Pursuant to the rules and regulations of the SEC, the information furnished pursuant to Item 7.01 of this Current Report (including Exhibit 99.2) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 9.01    FINANCIAL STATEMENTS AND EXHIBITS

(d)    Exhibits.

Exhibit No.  Description of Exhibit 99.1  Press Release issued by NN, Inc., dated October 29, 2025

99.2Third Quarter 2025 Investor Presentation

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: October 29, 2025

NN, INC.

By:/s/ Christopher H. Bohnert Name:Christopher H. Bohnert Title:Senior Vice President and Chief Financial Officer

nnbr-20250806August 6, 20250000918541falseCharlotteNorth Carolina00009185412025-08-062025-08-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 6, 2025

NN, Inc. (Exact name of registrant as specified in its charter)

Delaware 001-39268 62-1096725 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.)

6210 Ardrey Kell Road, Suite 120 Charlotte, North Carolina 28277 (Address of principal executive offices)(Zip Code)

(980) 264-4300 (Registrant’s telephone number, including area code) (Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading symbolName of each exchange on which registered Common Stock, par value $0.01NNBRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company. ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 2.02    RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On August 6, 2025, NN, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the quarter ended June 30, 2025. The full text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K (the "Current Report"). Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), the information furnished pursuant to Item 2.02 of this Current Report (including Exhibit 99.1) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 7.01    REGULATION FD DISCLOSURE

On August 6, 2025, the Company posted a supplemental presentation to its website, https://investors.nninc.com/, which will be presented during its quarterly investor conference call on August 7, 2025, at 9:00 a.m. ET. The supplemental presentation is included as Exhibit 99.2 to this Current Report. Pursuant to the rules and regulations of the SEC, the information furnished pursuant to Item 7.01 of this Current Report (including Exhibit 99.2) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 9.01    FINANCIAL STATEMENTS AND EXHIBITS

(d)    Exhibits.

Exhibit No.  Description of Exhibit 99.1  Press Release issued by NN, Inc., dated August 6, 2025

99.2Second Quarter 2025 Earnings Call Presentation

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: August 6, 2025

NN, INC.

By:/s/ Christopher H. Bohnert Name:Christopher H. Bohnert Title:Senior Vice President and Chief Financial Officer

nnbr-20250507May 7, 20250000918541falseCharlotteNorth Carolina00009185412025-05-072025-05-07

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 7, 2025

NN, Inc. (Exact name of registrant as specified in its charter)

Delaware 001-39268 62-1096725 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.)

6210 Ardrey Kell Road, Suite 120 Charlotte, North Carolina 28277 (Address of principal executive offices)(Zip Code)

(980) 264-4300 (Registrant’s telephone number, including area code) (Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading symbolName of each exchange on which registered Common Stock, par value $0.01NNBRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company. ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 2.02    RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On May 7, 2025, NN, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the quarter ended March 31, 2025. The full text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K (the "Current Report"). Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), the information furnished pursuant to Item 2.02 of this Current Report (including Exhibit 99.1) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 7.01    REGULATION FD DISCLOSURE

On May 7, 2025, the Company posted a supplemental presentation to its website, https://investors.nninc.com/, which will be presented during its quarterly investor conference call on May 8, 2025, at 9:00 a.m. ET. The supplemental presentation is included as Exhibit 99.2 to this Current Report. Pursuant to the rules and regulations of the SEC, the information furnished pursuant to Item 7.01 of this Current Report (including Exhibit 99.2) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 9.01    FINANCIAL STATEMENTS AND EXHIBITS

(d)    Exhibits.

Exhibit No.  Description of Exhibit 99.1  Press Release issued by NN, Inc., dated May 7, 2025

99.2First Quarter 2025 Earnings Call Presentation

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: May 7, 2025

NN, INC.

By:/s/ Christopher H. Bohnert Name:Christopher H. Bohnert Title:Senior Vice President and Chief Financial Officer

nnbr-20250421April 21, 20250000918541falseCharlotteNorth Carolina00009185412025-04-212025-04-21

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 21, 2025

NN, Inc. (Exact name of registrant as specified in its charter)

Delaware001-3926862-1096725 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.)

6210 Ardrey Kell Road, Suite 120 Charlotte, North Carolina 28277 (Address of principal executive offices)(Zip Code)

(980) 264-4300 (Registrant’s telephone number, including area code) (Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading symbolName of each exchange on which registered Common Stock, par value $0.01NNBRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company. ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 2.02    RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On April 21, 2025 NN, Inc., a Delaware corporation (the “Company”), issued a press release announcing the Company’s new business wins for the quarter ended March 31, 2025 as well as increasing its five-year Adjusted EBITDA target range up to 13-14% and reaffirming its 2025 Adjusted EBITDA guidance. The full text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K (the "Current Report"). Pursuant to the rules and regulations of the United States Securities and Exchange Commission, the information furnished pursuant to this Item 2.02 of this Current Report (including Exhibit 99.1) is deemed to have been furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any other filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 9.01    FINANCIAL STATEMENTS AND EXHIBITS

(d)    Exhibits.

Exhibit No.  Description of Exhibit 99.1Press Release issued by NN, Inc., dated April 21, 2025

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: April 21, 2025

NN, INC.

By:/s/ Christopher H. Bohnert Name:Christopher H. Bohnert Title:Senior Vice President and Chief Financial Officer

nnbr-20250305March 5, 20250000918541falseCharlotteNorth Carolina00009185412025-03-052025-03-05

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 5, 2025

NN, Inc. (Exact name of registrant as specified in its charter)

Delaware 001-39268 62-1096725 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.)

6210 Ardrey Kell Road, Suite 120 Charlotte, North Carolina 28277 (Address of principal executive offices)(Zip Code)

(980) 264-4300 (Registrant’s telephone number, including area code) (Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading symbolName of each exchange on which registered Common Stock, par value $0.01NNBRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company. ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 2.02    RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On March 5, 2025, NN, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the quarter and year ended December 31, 2024. The full text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K (the "Current Report"). Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), the information furnished pursuant to Item 2.02 of this Current Report (including Exhibit 99.1) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 7.01    REGULATION FD DISCLOSURE

On March 5, 2025, the Company posted a supplemental presentation to its website, https://investors.nninc.com/, which will be presented during its quarterly investor conference call on March 6, 2025, at 9:00 a.m. ET. The supplemental presentation is included as Exhibit 99.2 to this Current Report. Pursuant to the rules and regulations of the SEC, the information furnished pursuant to Item 7.01 of this Current Report (including Exhibit 99.2) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 9.01    FINANCIAL STATEMENTS AND EXHIBITS

(d)    Exhibits.

Exhibit No.  Description of Exhibit 99.1  Press Release issued by NN, Inc., dated March 5, 2025

99.2Earnings Presentation, dated March 6, 2025

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: March 5, 2025

NN, INC.

By:/s/ Christopher H. Bohnert Name:Christopher H. Bohnert Title:Senior Vice President and Chief Financial Officer

nnbr-20250114January 14, 20250000918541falseCharlotteNorth Carolina00009185412025-01-142025-01-14

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 14, 2025

NN, Inc. (Exact name of registrant as specified in its charter)

Delaware001-3926862-1096725 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.)

6210 Ardrey Kell Road, Suite 120 Charlotte, North Carolina 28277 (Address of principal executive offices)(Zip Code)

(980) 264-4300 (Registrant’s telephone number, including area code) (Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading symbolName of each exchange on which registered Common Stock, par value $0.01NNBRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company. ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 2.02    RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On January 14, 2025 NN, Inc., a Delaware corporation (the “Company”), issued a press release announcing the Company’s new business wins for the year ended December 31, 2024. The full text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K (the "Current Report"). Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission, the information furnished pursuant to this Item 7.01 of this Current Report (including Exhibit 99.1) is deemed to have been furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any other filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 9.01    FINANCIAL STATEMENTS AND EXHIBITS

(d)    Exhibits.

Exhibit No.  Description of Exhibit 99.1Press Release issued by NN, Inc., dated January 14, 2025

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: January 14, 2025

NN, INC.

By:/s/ Christopher H. Bohnert Name:Christopher H. Bohnert Title:Senior Vice President and Chief Financial Officer

nnbr-20241030October 30, 20240000918541falseCharlotteNorth Carolina00009185412024-10-302024-10-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 30, 2024

NN, Inc. (Exact name of registrant as specified in its charter)

Delaware 001-39268 62-1096725 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.)

6210 Ardrey Kell Road, Suite 120 Charlotte, North Carolina 28277 (Address of principal executive offices)(Zip Code)

(980) 264-4300 (Registrant’s telephone number, including area code) (Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading symbolName of each exchange on which registered Common Stock, par value $0.01NNBRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company. ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 2.02    RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On October 30, 2024, NN, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the quarter ended September 30, 2024. The full text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K (the "Current Report"). Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), the information furnished pursuant to Item 2.02 of this Current Report (including Exhibit 99.1) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 7.01    REGULATION FD DISCLOSURE

On October 30, 2024, the Company posted a supplemental presentation to its website, https://investors.nninc.com/, which will be presented during its quarterly investor conference call on October 31, 2024, at 9:00 a.m. ET. The supplemental presentation is included as Exhibit 99.2 to this Current Report. Pursuant to the rules and regulations of the SEC, the information furnished pursuant to Item 7.01 of this Current Report (including Exhibit 99.2) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 9.01    FINANCIAL STATEMENTS AND EXHIBITS

(d)    Exhibits.

Exhibit No.  Description of Exhibit 99.1  Press Release issued by NN, Inc., dated October 30, 2024

99.2Investor Presentation, dated October 31, 2024

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: October 30, 2024

NN, INC.

By:/s/ Christopher H. Bohnert Name:Christopher H. Bohnert Title:Senior Vice President and Chief Financial Officer

nnbr-20240807August 7, 20240000918541falseCharlotteNorth Carolina00009185412024-08-072024-08-07

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 7, 2024

NN, Inc. (Exact name of registrant as specified in its charter)

Delaware 001-39268 62-1096725 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.)

6210 Ardrey Kell Road, Suite 120 Charlotte, North Carolina 28277 (Address of principal executive offices)(Zip Code)

(980) 264-4300 (Registrant’s telephone number, including area code) (Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading symbolName of each exchange on which registered Common Stock, par value $0.01NNBRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company. ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 2.02    RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On August 7, 2024, NN, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the quarter ended June 30, 2024. The full text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K (the "Current Report"). Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), the information furnished pursuant to Item 2.02 of this Current Report (including Exhibit 99.1) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 7.01    REGULATION FD DISCLOSURE

On August 7, 2024, the Company posted a supplemental presentation to its website, https://investors.nninc.com/, which will be presented during its quarterly investor conference call on August 8, 2024, at 10:00a.m. ET. The supplemental presentation is included as Exhibit 99.2 to this Current Report. Pursuant to the rules and regulations of the SEC, the information furnished pursuant to Item 7.01 of this Current Report (including Exhibit 99.2) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 9.01    FINANCIAL STATEMENTS AND EXHIBITS

(d)    Exhibits.

Exhibit No.  Description of Exhibit 99.1  Press Release issued by NN, Inc., dated August 7, 2024

99.2Investor Presentation, dated August 8, 2024

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: August 7, 2024

NN, INC.

By:/s/ Christopher H. Bohnert Name:Christopher H. Bohnert Title:Senior Vice President and Chief Financial Officer

nnbr-20240506May 6, 20240000918541falseCharlotteNorth Carolina00009185412024-05-062024-05-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 6, 2024

NN, Inc. (Exact name of registrant as specified in its charter)

Delaware 001-39268 62-1096725 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.)

6210 Ardrey Kell Road, Suite 120 Charlotte, North Carolina 28277 (Address of principal executive offices)(Zip Code)

(980) 264-4300 (Registrant’s telephone number, including area code) (Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading symbolName of each exchange on which registered Common Stock, par value $0.01NNBRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company. ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 2.02    RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On May 6, 2024, NN, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the quarter ended March 31, 2024. The full text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K (the "Current Report"). Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), the information furnished pursuant to Item 2.02 of this Current Report (including Exhibit 99.1) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 7.01    REGULATION FD DISCLOSURE

On May 6, 2024, the Company posted a supplemental presentation to its website, https://investors.nninc.com/, which will be presented during its quarterly investor conference call on May 7, 2024, at 9:00a.m. ET. The supplemental presentation is included as Exhibit 99.2 to this Current Report. Pursuant to the rules and regulations of the SEC, the information furnished pursuant to Item 7.01 of this Current Report (including Exhibit 99.2) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 9.01    FINANCIAL STATEMENTS AND EXHIBITS

(d)    Exhibits.

Exhibit No.  Description of Exhibit 99.1  Press Release issued by NN, Inc., dated May 6, 2024

99.2Investor Presentation, dated May 7, 2024

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: May 6, 2024

NN, INC.

By:/s/ Michael C. Felcher Name:Michael C. Felcher Title:Senior Vice President and Chief Financial Officer

nnbr-20240311March 11, 20240000918541falseCharlotteNorth Carolina00009185412024-03-112024-03-11

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 11, 2024

NN, Inc. (Exact name of registrant as specified in its charter)

Delaware 001-39268 62-1096725 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.)

6210 Ardrey Kell Road, Suite 600 Charlotte, North Carolina 28277 (Address of principal executive offices)(Zip Code)

(980) 264-4300 (Registrant’s telephone number, including area code) (Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading symbolName of each exchange on which registered Common Stock, par value $0.01NNBRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company. ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 2.02    RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On March 11, 2024, NN, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the quarter and year ended December 31, 2023. The full text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K (the "Current Report"). Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), the information furnished pursuant to Item 2.02 of this Current Report (including Exhibit 99.1) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 7.01    REGULATION FD DISCLOSURE

On March 11, 2024, the Company posted an supplemental presentation to its website, https://investors.nninc.com/, which will be presented during its quarterly investor conference call on March 12, 2024, at 9:00a.m. ET. The supplemental presentation is included as Exhibit 99.2 to this Current Report. Pursuant to the rules and regulations of the SEC, the information furnished pursuant to Item 7.01 of this Current Report (including Exhibit 99.2) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 9.01    FINANCIAL STATEMENTS AND EXHIBITS

(d)    Exhibits.

Exhibit No.  Description of Exhibit 99.1  Press Release issued by NN, Inc., dated March 11, 2024

99.2Investor Presentation, dated March 12, 2024

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: March 11, 2024

NN, INC.

By:/s/ Michael C. Felcher Name:Michael C. Felcher Title:Senior Vice President and Chief Financial Officer

nnbr-20231106November 6, 20230000918541falseCharlotteNorth Carolina00009185412023-11-062023-11-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 6, 2023

NN, Inc. (Exact name of registrant as specified in its charter)

Delaware 001-39268 62-1096725 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.)

6210 Ardrey Kell Road, Suite 600 Charlotte, North Carolina 28277 (Address of principal executive offices)(Zip Code)

(980) 264-4300 (Registrant’s telephone number, including area code) (Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading symbolName of each exchange on which registered Common Stock, par value $0.01NNBRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company. ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 2.02    RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On November 6, 2023, NN, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the quarter ended September 30, 2023. The full text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K (the "Current Report"). Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), the information furnished pursuant to Item 2.02 of this Current Report (including Exhibit 99.1) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 9.01    FINANCIAL STATEMENTS AND EXHIBITS

(d)    Exhibits.

Exhibit No.  Description of Exhibit 99.1  Press Release issued by NN, Inc., dated November 6, 2023

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: November 6, 2023

NN, INC.

By:/s/ Michael C. Felcher Name:Michael C. Felcher Title:Senior Vice President - Chief Financial Officer

nnbr-20230803August 3, 20230000918541falseCharlotteNorth Carolina00009185412023-08-032023-08-03

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2023

NN, Inc. (Exact name of registrant as specified in its charter)

Delaware 001-39268 62-1096725 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.)

6210 Ardrey Kell Road, Suite 600 Charlotte, North Carolina 28277 (Address of principal executive offices)(Zip Code)

(980) 264-4300 (Registrant’s telephone number, including area code) (Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading symbolName of each exchange on which registered Common Stock, par value $0.01NNBRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company. ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 2.02    RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On August 3, 2023, NN, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the quarter ended June 30, 2023. The full text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K (the "Current Report"). Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), the information furnished pursuant to Item 2.02 of this Current Report (including Exhibit 99.1) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 9.01    FINANCIAL STATEMENTS AND EXHIBITS

(d)    Exhibits.

Exhibit No.  Description of Exhibit 99.1  Press Release issued by NN, Inc., dated August 3, 2023

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: August 3, 2023

NN, INC.

By:/s/ Michael C. Felcher Name:Michael C. Felcher Title:Senior Vice President - Chief Financial Officer

nnbr-20230504May 4, 20230000918541falseCharlotteNorth Carolina00009185412023-05-042023-05-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 4, 2023

NN, Inc. (Exact name of registrant as specified in its charter)

Delaware 001-39268 62-1096725 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.)

6210 Ardrey Kell Road, Suite 600 Charlotte, North Carolina 28277 (Address of principal executive offices)(Zip Code)

(980) 264-4300 (Registrant’s telephone number, including area code) (Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading symbolName of each exchange on which registered Common Stock, par value $0.01NNBRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company. ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 2.02    RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On May 4, 2023, NN, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the quarter ended March 31, 2023. The full text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K (the "Current Report"). Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), the information furnished pursuant to Item 2.02 of this Current Report (including Exhibit 99.1) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 9.01    FINANCIAL STATEMENTS AND EXHIBITS

(d)    Exhibits.

Exhibit No.  Description of Exhibit 99.1  Press Release issued by NN, Inc., dated May 4, 2023

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: May 4, 2023

NN, INC.

By:/s/ Michael C. Felcher Name:Michael C. Felcher Title:Senior Vice President - Chief Financial Officer

nnbr-20230309March 9, 20230000918541falseCharlotteNorth Carolina00009185412023-03-092023-03-09

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 9, 2023

NN, Inc. (Exact name of registrant as specified in its charter)

Delaware 001-39268 62-1096725 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.)

6210 Ardrey Kell Road, Suite 600 Charlotte, North Carolina 28277 (Address of principal executive offices)(Zip Code)

(980) 264-4300 (Registrant’s telephone number, including area code) (Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading symbolName of each exchange on which registered Common Stock, par value $0.01NNBRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company. ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 2.02    RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On March 9, 2023, NN, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the quarter and year ended December 31, 2022. The full text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K (the "Current Report"). Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), the information furnished pursuant to Item 2.02 of this Current Report (including Exhibit 99.1) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 9.01    FINANCIAL STATEMENTS AND EXHIBITS

(d)    Exhibits.

Exhibit No.  Description of Exhibit 99.1  Press Release issued by NN, Inc., dated March 9, 2023

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: March 9, 2023

NN, INC.

By:/s/ Michael C. Felcher Name:Michael C. Felcher Title:Senior Vice President - Chief Financial Officer

nnbr-20221101November 1, 20220000918541falseCharlotteNorth Carolina00009185412022-11-012022-11-01

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 1, 2022

NN, Inc. (Exact name of registrant as specified in its charter)

Delaware 000-23486 62-1096725 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.)

6210 Ardrey Kell Road, Suite 600 Charlotte, North Carolina 28277 (Address of principal executive offices)(Zip Code)

(980) 264-4300 (Registrant’s telephone number, including area code) (Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading symbolName of each exchange on which registered Common Stock, par value $0.01NNBRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company. ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 2.02    RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On November 1, 2022, NN, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the quarter ended September 30, 2022. The full text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K (the "Current Report"). Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), the information furnished pursuant to Item 2.02 of this Current Report (including Exhibit 99.1) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 5.02    DEPARTURE OF DIRECTORS OR CERTAIN OFFICERS; ELECTION OF DIRECTORS; APPOINTMENT OF CERTAIN OFFICERS; COMPENSATORY ARRANGEMENTS OF CERTAIN OFFICERS. On November 1, 2022, Warren Veltman announced that he will be retiring from his position as President and Chief Executive Officer, and John R. Buchan announced that he will be retiring from his position as Executive Vice President, Mobile Solutions and Power Solutions. Mr. Veltman’s and Mr. Buchan’s retirements were not the result of any disagreement regarding any matter relating to the Company’s operations, policies or practices, and each of Mr. Veltman and Mr. Buchan will remain in their current positions until March 31, 2023, however, such date may be extended in order to facilitate an orderly transition. Additionally, the Board of Directors of the Company (the “Board”) has implemented a management transition plan to address the pending retirements of Mr. Veltman and Mr. Buchan (the “Management Transition Plan”). In connection with the Management Transition Plan, the Board has engaged Korn Ferry, a global organizational consulting firm, to assist in identifying candidates for the President and Chief Executive Officer position.

ITEM 7.01    REGULATION FD DISCLOSURE.

On November 1, 2022, the Company issued a press release announcing the Board’s Management Transition Plan. The full text of the press release is furnished as Exhibit 99.2 to this Current Report. Pursuant to the rules and regulations of the SEC, the information furnished pursuant to Item 7.01 of this Current Report (including Exhibit 99.2) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation langu

nnbr-20220804August 4, 20220000918541falseCharlotteNorth Carolina00009185412022-08-042022-08-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 4, 2022

NN, Inc. (Exact name of registrant as specified in its charter)

Delaware 000-23486 62-1096725 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.)

6210 Ardrey Kell Road, Suite 600 Charlotte, North Carolina 28277 (Address of principal executive offices)(Zip Code)

(980) 264-4300 (Registrant’s telephone number, including area code) (Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading symbolName of each exchange on which registered Common Stock, par value $0.01NNBRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company. ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 2.02    RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On August 4, 2022, NN, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the quarter ended June 30, 2022. The full text of the press release is furnished as Exhibit 99.1 and is incorporated herein by reference.

Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), the information furnished pursuant to Item 2.02 of this Current Report on Form 8-K (including Exhibit 99.1) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 9.01    FINANCIAL STATEMENTS AND EXHIBITS

(d)    Exhibits.

Exhibit No.  Description of Exhibit 99.1  Press Release issued by NN, Inc., dated August 4, 2022

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: August 4, 2022

NN, INC.

By:/s/ Michael C. Felcher Name:Michael C. Felcher Title:Senior Vice President - Chief Financial Officer

nnbr-20220505May 5, 20220000918541falseCharlotteNorth Carolina00009185412022-05-052022-05-05

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 5, 2022

NN, Inc. (Exact name of registrant as specified in its charter)

Delaware 000-23486 62-1096725 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification Number)

6210 Ardrey Kell Road, Suite 600 Charlotte, North Carolina 28277 (Address of principal executive offices)(Zip Code)

(980) 264-4300 (Registrant’s telephone number, including area code) (Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading symbolName of each exchange on which registered Common Stock, par value $0.01 per shareNNBRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company.  ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On May 5, 2022, NN, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the quarter ended March 31, 2022. The full text of the press release is furnished as Exhibit 99.1 and is incorporated herein by reference.

Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), the information furnished pursuant to Item 2.02 of this Current Report on Form 8-K (including Exhibit 99.1) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 9.01FINANCIAL STATEMENTS AND EXHIBITS

(d)    Exhibits.

Exhibit No.  Description 99.1  Press Release issued by NN, Inc., dated May 5, 2022

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Date: May 5, 2022

NN, INC.

By:/s/ Michael C. Felcher Name: Michael C. Felcher Title: Senior Vice President - Chief Financial Officer

nnbr-20220310March 10, 20220000918541falseCharlotteNorth Carolina00009185412022-03-102022-03-10

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 10, 2022

NN, Inc. (Exact name of registrant as specified in its charter)

Delaware 000-23486 62-1096725 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification Number)

6210 Ardrey Kell Road, Suite 600 Charlotte, North Carolina 28277 (Address of principal executive offices)(Zip Code)

(980) 264-4300 (Registrant’s telephone number, including area code) (Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading symbolName of each exchange on which registered Common Stock, par value $0.01 per shareNNBRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company.  ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On March 10, 2022, NN, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the quarter and year ended December 31, 2021. The full text of the press release is furnished as Exhibit 99.1 and is incorporated herein by reference.

Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), the information furnished pursuant to Item 2.02 of this Current Report on Form 8-K (including Exhibit 99.1) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 9.01FINANCIAL STATEMENTS AND EXHIBITS

(d)    Exhibits.

Exhibit No.  Description 99.1  Press Release issued by NN, Inc., dated March 10, 2022

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Date: March 10, 2022

NN, INC.

By:/s/ Michael C. Felcher Name: Michael C. Felcher Title: Senior Vice President - Chief Financial Officer

nnbr-20211104November 4, 20210000918541falseCharlotteNorth Carolina00009185412021-11-042021-11-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 4, 2021

NN, Inc. (Exact name of registrant as specified in its charter)

Delaware 000-23486 62-1096725 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification Number)

6210 Ardrey Kell Road, Suite 600 Charlotte, North Carolina 28277 (Address of principal executive offices)(Zip Code)

(980) 264-4300 (Registrant’s telephone number, including area code) (Former name or former address, if changed since last report)

Check the appropriate box if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d- 2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e- 4(c))

Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading symbolName of each exchange on which registered Common Stock, par value $0.01 per shareNNBRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company.  ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 2.02RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On November 4, 2021, NN, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the quarter ended September 30, 2021. The full text of the press release is furnished as Exhibit 99.1 and is incorporated herein by reference.

Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”), the information furnished pursuant to Item 2.02 of this Current Report on Form 8-K (including Exhibit 99.1) is deemed to have been furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

ITEM 9.01FINANCIAL STATEMENTS AND EXHIBITS

(d)    Exhibits.

Exhibit No.  Description 99.1  Press Release issued by NN, Inc., dated November 4, 2021

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Date: November 4, 2021

NN, INC.

By: /s/ Michael C. Felcher Name: Michael C. Felcher Title: Senior Vice President - Chief Financial Officer