RHI

rhi-202601290000315213false00003152132026-01-292026-01-29

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 29, 2026

Robert Half Inc. (Exact name of registrant as specified in its charter)

Delaware 01-10427 94-1648752 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

2884 Sand Hill Road, Suite 200,Menlo Park,CA 94025 (Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 234-6000

NO CHANGE

(Former name or former address, if changed since last report.)

Check the appropriate box below 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 Symbol(s)Name of each exchange on which registered Common Stock, Par Value $.001 per ShareRHINew York Stock Exchange

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 January 29, 2026, Robert Half Inc. issued a press release reporting earnings for the fourth fiscal quarter of 2025. A copy of the press release is attached hereto as Exhibit 99.1. The foregoing information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference in any filing under the Securities Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such future filing.

Item 9.01Financial Statements and Exhibits.

(d)           Exhibits

Exhibit    Description

99.1    Robert Half Inc. January 29, 2026 Press Release.

104Cover Page Interactive Data File - the cover page XBRL tags are 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.

Robert Half Inc.

Date: January 29, 2026 By:    /s/ Michael C. Buckley Name: Michael C. Buckley Title: Executive Vice President, Chief Financial Officer

rhi-202510220000315213false00003152132025-10-222025-10-22

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 22, 2025

Robert Half Inc. (Exact name of registrant as specified in its charter)

Delaware 01-10427 94-1648752 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

2884 Sand Hill Road, Suite 200,Menlo Park,CA 94025 (Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 234-6000

NO CHANGE

(Former name or former address, if changed since last report.)

Check the appropriate box below 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 Symbol(s)Name of each exchange on which registered Common Stock, Par Value $.001 per ShareRHINew York Stock Exchange

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 October 22, 2025, Robert Half Inc. issued a press release reporting earnings for the third fiscal quarter of 2025. A copy of the press release is attached hereto as Exhibit 99.1. The foregoing information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference in any filing under the Securities Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such future filing.

Item 9.01Financial Statements and Exhibits.

(d)           Exhibits

Exhibit    Description

99.1    Robert Half Inc. October 22, 2025 Press Release.

104Cover Page Interactive Data File - the cover page XBRL tags are 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.

Robert Half Inc.

Date: October 22, 2025 By:    /s/ Michael C. Buckley Name: Michael C. Buckley Title: Executive Vice President, Chief Financial Officer

rhi-202507230000315213false00003152132025-07-232025-07-23

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) July 23, 2025

Robert Half Inc. (Exact name of registrant as specified in its charter)

Delaware 01-10427 94-1648752 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

2884 Sand Hill Road, Suite 200,Menlo Park,CA 94025 (Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 234-6000

NO CHANGE

(Former name or former address, if changed since last report.)

Check the appropriate box below 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 Symbol(s)Name of each exchange on which registered Common Stock, Par Value $.001 per ShareRHINew York Stock Exchange

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 July 23, 2025, Robert Half Inc. issued a press release reporting earnings for the second fiscal quarter of 2025. A copy of the press release is attached hereto as Exhibit 99.1. The foregoing information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference in any filing under the Securities Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such future filing.

Item 9.01Financial Statements and Exhibits.

(d)           Exhibits

Exhibit    Description

99.1    Robert Half Inc. July 23, 2025 Press Release.

104Cover Page Interactive Data File - the cover page XBRL tags are 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.

Robert Half Inc.

Date: July 23, 2025 By:    /s/ Michael C. Buckley Name: Michael C. Buckley Title: Executive Vice President, Chief Financial Officer

rhi-202504230000315213false00003152132025-04-232025-04-23

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 23, 2025

Robert Half Inc. (Exact name of registrant as specified in its charter)

Delaware 01-10427 94-1648752 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

2884 Sand Hill Road, Suite 200,Menlo Park,CA 94025 (Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 234-6000

NO CHANGE

(Former name or former address, if changed since last report.)

Check the appropriate box below 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 Symbol(s)Name of each exchange on which registered Common Stock, Par Value $.001 per ShareRHINew York Stock Exchange

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 April 23, 2025, Robert Half Inc. issued a press release reporting earnings for the first fiscal quarter of 2025. A copy of the press release is attached hereto as Exhibit 99.1. The foregoing information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference in any filing under the Securities Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such future filing.

Item 9.01Financial Statements and Exhibits.

(d)           Exhibits

Exhibit    Description

99.1    Robert Half Inc. April 23, 2025 Press Release.

104Cover Page Interactive Data File - the cover page XBRL tags are 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.

Robert Half Inc.

Date: April 23, 2025 By:    /s/ Michael C. Buckley Name: Michael C. Buckley Title: Executive Vice President, Chief Financial Officer

rhi-202501290000315213false00003152132025-01-292025-01-29

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 29, 2025

Robert Half Inc. (Exact name of registrant as specified in its charter)

Delaware 01-10427 94-1648752 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

2884 Sand Hill Road, Suite 200,Menlo Park,CA 94025 (Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 234-6000

NO CHANGE

(Former name or former address, if changed since last report.)

Check the appropriate box below 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 Symbol(s)Name of each exchange on which registered Common Stock, Par Value $.001 per ShareRHINew York Stock Exchange

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 January 29, 2025, Robert Half Inc. issued a press release reporting earnings for the fourth fiscal quarter of 2024. A copy of the press release is attached hereto as Exhibit 99.1. The foregoing information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference in any filing under the Securities Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such future filing.

Item 9.01Financial Statements and Exhibits.

(d)           Exhibits

Exhibit    Description

99.1    Robert Half Inc. January 29, 2025 Press Release.

104Cover Page Interactive Data File - the cover page XBRL tags are 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.

Robert Half Inc.

Date: January 29, 2025 By:    /s/ Michael C. Buckley Name: Michael C. Buckley Title: Executive Vice President, Chief Financial Officer

rhi-202410220000315213false00003152132024-10-222024-10-22

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 22, 2024

Robert Half Inc. (Exact name of registrant as specified in its charter)

Delaware 01-10427 94-1648752 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

2884 Sand Hill Road, Suite 200,Menlo Park,CA 94025 (Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 234-6000

NO CHANGE

(Former name or former address, if changed since last report.)

Check the appropriate box below 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 Symbol(s)Name of each exchange on which registered Common Stock, Par Value $.001 per ShareRHINew York Stock Exchange

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 October 22, 2024, Robert Half Inc. issued a press release reporting earnings for the third fiscal quarter of 2024. A copy of the press release is attached hereto as Exhibit 99.1. The foregoing information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference in any filing under the Securities Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such future filing.

Item 9.01Financial Statements and Exhibits.

(d)           Exhibits

Exhibit    Description

99.1    Robert Half Inc. October 22, 2024 Press Release.

104Cover Page Interactive Data File - the cover page XBRL tags are 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.

Robert Half Inc.

Date: October 22, 2024 By:    /s/ Michael C. Buckley Name: Michael C. Buckley Title: Executive Vice President, Chief Financial Officer

rhi-202407240000315213false00003152132024-07-242024-07-24

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) July 24, 2024

Robert Half Inc. (Exact name of registrant as specified in its charter)

Delaware 01-10427 94-1648752 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

2884 Sand Hill Road, Suite 200,Menlo Park,CA 94025 (Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 234-6000

NO CHANGE

(Former name or former address, if changed since last report.)

Check the appropriate box below 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 Symbol(s)Name of each exchange on which registered Common Stock, Par Value $.001 per ShareRHINew York Stock Exchange

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 July 24, 2024, Robert Half Inc. issued a press release reporting earnings for the second fiscal quarter of 2024. A copy of the press release is attached hereto as Exhibit 99.1. The foregoing information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference in any filing under the Securities Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such future filing.

Item 9.01Financial Statements and Exhibits.

(d)           Exhibits

Exhibit    Description

99.1    Robert Half Inc. July 24, 2024 Press Release.

104Cover Page Interactive Data File - the cover page XBRL tags are 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.

Robert Half Inc.

Date: July 24, 2024 By:    /s/ Michael C. Buckley Name: Michael C. Buckley Title: Executive Vice President, Chief Financial Officer

rhi-202404250000315213false00003152132024-04-252024-04-25

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 25, 2024

Robert Half Inc. (Exact name of registrant as specified in its charter)

Delaware 01-10427 94-1648752 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

2884 Sand Hill Road, Suite 200,Menlo Park,CA 94025 (Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 234-6000

NO CHANGE

(Former name or former address, if changed since last report.)

Check the appropriate box below 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 Symbol(s)Name of each exchange on which registered Common Stock, Par Value $.001 per ShareRHINew York Stock Exchange

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 April 25, 2024, Robert Half Inc. issued a press release reporting earnings for the first fiscal quarter of 2024. A copy of the press release is attached hereto as Exhibit 99.1. The foregoing information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference in any filing under the Securities Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such future filing.

Item 9.01Financial Statements and Exhibits.

(d)           Exhibits

Exhibit    Description

99.1    Robert Half Inc. April 25, 2024 Press Release.

104Cover Page Interactive Data File - the cover page XBRL tags are 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.

Robert Half Inc.

Date: April 25, 2024 By:    /s/ Michael C. Buckley Name: Michael C. Buckley Title: Executive Vice President, Chief Financial Officer

rhi-202401300000315213false00003152132024-01-302024-01-30

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) January 30, 2024

Robert Half Inc. (Exact name of registrant as specified in its charter)

Delaware 01-10427 94-1648752 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

2884 Sand Hill Road, Suite 200,Menlo Park,CA 94025 (Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 234-6000

NO CHANGE

(Former name or former address, if changed since last report.)

Check the appropriate box below 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 Symbol(s)Name of each exchange on which registered Common Stock, Par Value $.001 per ShareRHINew York Stock Exchange

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 January 30, 2024, Robert Half Inc. issued a press release reporting earnings for the fourth fiscal quarter of 2023. A copy of the press release is attached hereto as Exhibit 99.1. The foregoing information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference in any filing under the Securities Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such future filing.

Item 9.01Financial Statements and Exhibits.

(d)           Exhibits

Exhibit    Description

99.1    Robert Half Inc. January 30, 2024 Press Release.

104Cover Page Interactive Data File - the cover page XBRL tags are 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.

Robert Half Inc.

Date: January 30, 2024 By:    /s/ Michael C. Buckley Name: Michael C. Buckley Title: Executive Vice President, Chief Financial Officer

rhi-202310240000315213false00003152132023-10-242023-10-24

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 24, 2023

Robert Half Inc. (Exact name of registrant as specified in its charter)

Delaware 01-10427 94-1648752 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

2884 Sand Hill Road, Suite 200,Menlo Park,CA 94025 (Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 234-6000

NO CHANGE

(Former name or former address, if changed since last report.)

Check the appropriate box below 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 Symbol(s)Name of each exchange on which registered Common Stock, Par Value $.001 per ShareRHINew York Stock Exchange

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 October 24, 2023, Robert Half Inc. issued a press release reporting earnings for the third fiscal quarter of 2023. A copy of the press release is attached hereto as Exhibit 99.1. The foregoing information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference in any filing under the Securities Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such future filing.

Item 9.01Financial Statements and Exhibits.

(d)           Exhibits

Exhibit    Description

99.1    Robert Half Inc. October 24, 2023 Press Release.

104Cover Page Interactive Data File - the cover page XBRL tags are 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.

Robert Half Inc.

Date: October 24, 2023 By:    /s/ Michael C. Buckley Name: Michael C. Buckley Title: Executive Vice President, Chief Financial Officer

rhi-202307250000315213false00003152132023-07-252023-07-25

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) July 25, 2023

Robert Half Inc. (Exact name of registrant as specified in its charter)

Delaware 01-10427 94-1648752 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

2884 Sand Hill Road, Suite 200,Menlo Park,CA 94025 (Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 234-6000 Robert Half International Inc. (Former name or former address, if changed since last report.)

Check the appropriate box below 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 Symbol(s)Name of each exchange on which registered Common Stock, Par Value $.001 per ShareRHINew York Stock Exchange

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 July 25, 2023, Robert Half Inc. issued a press release reporting earnings for the second fiscal quarter of 2023. A copy of the press release is attached hereto as Exhibit 99.1. The foregoing information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference in any filing under the Securities Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such future filing.

Item 9.01Financial Statements and Exhibits.

(d)           Exhibits

Exhibit    Description

99.1    Robert Half Inc. July 25, 2023 Press Release.

104Cover Page Interactive Data File - the cover page XBRL tags are 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.

Robert Half Inc.

Date: July 25, 2023 By:    /s/ Michael C. Buckley Name: Michael C. Buckley Title: Executive Vice President, Chief Financial Officer

rhi-202304260000315213false00003152132023-04-262023-04-26

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 26, 2023

Robert Half International Inc. (Exact name of registrant as specified in its charter)

Delaware 01-10427 94-1648752 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

2884 Sand Hill Road, Suite 200,Menlo Park,CA 94025 (Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 234-6000

NO CHANGE

(Former name or former address, if changed since last report.)

Check the appropriate box below 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 Symbol(s)Name of each exchange on which registered Common Stock, Par Value $.001 per ShareRHINew York Stock Exchange

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 April 26, 2023, Robert Half International Inc. issued a press release reporting earnings for the first fiscal quarter of 2023. A copy of the press release is attached hereto as Exhibit 99.1. The foregoing information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference in any filing under the Securities Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such future filing.

Item 9.01Financial Statements and Exhibits.

(d)           Exhibits

Exhibit    Description

99.1    Robert Half International Inc. April 26, 2023 Press Release.

104Cover Page Interactive Data File - the cover page XBRL tags are 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.

Robert Half International Inc.

Date: April 26, 2023 By:    /s/ Michael C. Buckley Name: Michael C. Buckley Title: Executive Vice President, Chief Financial Officer

rhi-202301260000315213false00003152132023-01-262023-01-26

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 26, 2023

Robert Half International Inc. (Exact name of registrant as specified in its charter)

Delaware 01-10427 94-1648752 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

2884 Sand Hill Road, Suite 200,Menlo Park,CA 94025 (Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 234-6000

NO CHANGE

(Former name or former address, if changed since last report.)

Check the appropriate box below 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 Symbol(s)Name of each exchange on which registered Common Stock, Par Value $.001 per ShareRHINew York Stock Exchange

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 January 26, 2023, Robert Half International Inc. issued a press release reporting earnings for the fourth fiscal quarter of 2022. A copy of the press release is attached hereto as Exhibit 99.1. The foregoing information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference in any filing under the Securities Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such future filing.

Item 9.01Financial Statements and Exhibits.

(d)           Exhibits

Exhibit    Description

99.1    Robert Half International Inc. January 26, 2023 Press Release.

104Cover Page Interactive Data File - the cover page XBRL tags are 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.

Robert Half International Inc.

Date: January 26, 2023 By:    /s/ Michael C. Buckley Name: Michael C. Buckley Title: Executive Vice President, Chief Financial Officer

rhi-202210200000315213false00003152132022-10-202022-10-20

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 20, 2022

Robert Half International Inc. (Exact name of registrant as specified in its charter)

Delaware 01-10427 94-1648752 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

2884 Sand Hill Road, Suite 200,Menlo Park,CA 94025 (Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 234-6000

NO CHANGE

(Former name or former address, if changed since last report.)

Check the appropriate box below 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 Symbol(s)Name of each exchange on which registered Common Stock, Par Value $.001 per ShareRHINew York Stock Exchange

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 October 20, 2022, Robert Half International Inc. issued a press release reporting earnings for the third fiscal quarter of 2022. A copy of the press release is attached hereto as Exhibit 99.1. The foregoing information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference in any filing under the Securities Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such future filing.

Item 9.01Financial Statements and Exhibits.

(d)           Exhibits

Exhibit    Description

99.1    Robert Half International Inc. October 20, 2022 Press Release.

104Cover Page Interactive Data File - the cover page XBRL tags are 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.

Robert Half International Inc.

Date: October 20, 2022 By:    /s/ Michael C. Buckley Name: Michael C. Buckley Title: Executive Vice President, Chief Financial Officer

rhi-202207210000315213false00003152132022-07-212022-07-21

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) July 21, 2022

Robert Half International Inc. (Exact name of registrant as specified in its charter)

Delaware 01-10427 94-1648752 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

2884 Sand Hill Road, Suite 200,Menlo Park,CA 94025 (Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 234-6000

NO CHANGE

(Former name or former address, if changed since last report.)

Check the appropriate box below 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 Symbol(s)Name of each exchange on which registered Common Stock, Par Value $.001 per ShareRHINew York Stock Exchange

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 July 21, 2022, Robert Half International Inc. issued a press release reporting earnings for the second fiscal quarter of 2022. A copy of the press release is attached hereto as Exhibit 99.1. The foregoing information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference in any filing under the Securities Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such future filing.

Item 9.01Financial Statements and Exhibits.

(d)           Exhibits

Exhibit    Description

99.1    Robert Half International Inc. July 21, 2022 Press Release.

104Cover Page Interactive Data File - the cover page XBRL tags are 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.

Robert Half International Inc.

Date: July 21, 2022 By:    /s/ Michael C. Buckley Name: Michael C. Buckley Title: Executive Vice President, Chief Financial Officer

rhi-202204260000315213false00003152132022-04-262022-04-26

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 26, 2022

Robert Half International Inc. (Exact name of registrant as specified in its charter)

Delaware 01-10427 94-1648752 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

2884 Sand Hill Road, Suite 200,Menlo Park,CA 94025 (Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 234-6000

NO CHANGE

(Former name or former address, if changed since last report.)

Check the appropriate box below 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 Symbol(s)Name of each exchange on which registered Common Stock, Par Value $.001 per ShareRHINew York Stock Exchange

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 April 26, 2022, Robert Half International Inc. issued a press release reporting earnings for the first fiscal quarter of 2022. A copy of the press release is attached hereto as Exhibit 99.1. The foregoing information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference in any filing under the Securities Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such future filing.

Item 9.01Financial Statements and Exhibits.

(d)           Exhibits

Exhibit    Description

99.1    Robert Half International Inc. April 26, 2022 Press Release.

104Cover Page Interactive Data File - the cover page XBRL tags are 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.

Robert Half International Inc.

Date: April 26, 2022 By:    /s/ Michael C. Buckley Name: Michael C. Buckley Title: Executive Vice President, Chief Financial Officer

rhi-202201270000315213false00003152132022-01-272022-01-27

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 27, 2022

Robert Half International Inc. (Exact name of registrant as specified in its charter)

Delaware 01-10427 94-1648752 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

2884 Sand Hill Road, Suite 200,Menlo Park,CA 94025 (Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 234-6000

NO CHANGE

(Former name or former address, if changed since last report.)

Check the appropriate box below 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 Symbol(s)Name of each exchange on which registered Common Stock, Par Value $.001 per ShareRHINew York Stock Exchange

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 January 27, 2022, Robert Half International Inc. issued a press release reporting earnings for the fourth fiscal quarter of 2021 and the full year ended 2021. A copy of the press release is attached hereto as Exhibit 99.1. The foregoing information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference in any filing under the Securities Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such future filing.

Item 9.01Financial Statements and Exhibits.

(d)           Exhibits

Exhibit    Description

99.1    Robert Half International Inc. January 27, 2022 Press Release.

104Cover Page Interactive Data File - the cover page XBRL tags are 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.

Robert Half International Inc.

Date: January 27, 2022 By:    /s/ Michael C. Buckley Name: Michael C. Buckley Title: Executive Vice President, Chief Financial Officer

rhi-202110210000315213false00003152132021-10-212021-10-21

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) October 21, 2021

Robert Half International Inc. (Exact name of registrant as specified in its charter)

Delaware 01-10427 94-1648752 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

2884 Sand Hill Road, Suite 200,Menlo Park,CA 94025 (Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 234-6000

NO CHANGE

(Former name or former address, if changed since last report.)

Check the appropriate box below 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 Symbol(s)Name of each exchange on which registered Common Stock, Par Value $.001 per ShareRHINew York Stock Exchange

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 October 21, 2021, Robert Half International Inc. issued a press release reporting earnings for the third fiscal quarter of 2021. A copy of the press release is attached hereto as Exhibit 99.1. The foregoing information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference in any filing under the Securities Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such future filing.

Item 9.01Financial Statements and Exhibits.

(d)           Exhibits

Exhibit    Description

99.1    Robert Half International Inc. October 21, 2021 Press Release.

104Cover Page Interactive Data File - the cover page XBRL tags are 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.

Robert Half International Inc.

Date: October 21, 2021 By:    /s/ Michael C. Buckley Name: Michael C. Buckley Title: Executive Vice President, Chief Financial Officer

rhi-202107220000315213false00003152132021-07-222021-07-2200003152132020-10-222020-10-22

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) July 22, 2021

Robert Half International Inc. (Exact name of registrant as specified in its charter)

Delaware 01-10427 94-1648752 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

2884 Sand Hill Road, Suite 200,Menlo Park,CA 94025 (Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 234-6000

NO CHANGE

(Former name or former address, if changed since last report.)

Check the appropriate box below 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 Symbol(s)Name of each exchange on which registered Common Stock, Par Value $.001 per ShareRHINew York Stock Exchange

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 July 22, 2021, Robert Half International Inc. issued a press release reporting earnings for the second fiscal quarter of 2021. A copy of the press release is attached hereto as Exhibit 99.1. The foregoing information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference in any filing under the Securities Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such future filing.

Item 9.01Financial Statements and Exhibits.

(d)           Exhibits

Exhibit    Description

99.1    Robert Half International Inc. July 22, 2021 Press Release.

104Cover Page Interactive Data File - the cover page XBRL tags are 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.

Robert Half International Inc.

Date: July 22, 2021 By:    /s/ Michael C. Buckley Name: Michael C. Buckley Title: Executive Vice President, Chief Financial Officer

rhi-202104210000315213false00003152132020-10-222020-10-2200003152132020-07-232020-07-23

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, 2021

Robert Half International Inc. (Exact name of registrant as specified in its charter)

Delaware 01-10427 94-1648752 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

2884 Sand Hill Road, Suite 200,Menlo Park,CA 94025 (Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 234-6000

NO CHANGE

(Former name or former address, if changed since last report.)

Check the appropriate box below 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 Symbol(s)Name of each exchange on which registered Common Stock, Par Value $.001 per ShareRHINew York Stock Exchange

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 April 21, 2021, Robert Half International Inc. issued a press release reporting earnings for the first fiscal quarter of 2021. A copy of the press release is attached hereto as Exhibit 99.1. The foregoing information in this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference in any filing under the Securities Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such future filing.

Item 9.01Financial Statements and Exhibits.

(d)           Exhibits

Exhibit    Description

99.1    Robert Half International Inc. April 21, 2021 Press Release.

104Cover Page Interactive Data File - the cover page XBRL tags are 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.

Robert Half International Inc.

Date: April 21, 2021 By:      /s/    Michael C. Buckley

Name: Michael C. Buckley Title: Executive Vice President, Chief Financial Officer