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AI Earnings Predictions for Golub Capital BDC Inc. (GBDC)

Machine learning predictions based on historical earnings data and price patterns

Latest Prediction

BUY

1-Day Prediction

-0.24%

$12.72

100% positive prob.

5-Day Prediction

+2.48%

$13.07

100% positive prob.

20-Day Prediction

+0.44%

$12.81

95% positive prob.

Price at prediction: $12.75 Confidence: 100.0% Model AUC: 1.0000 Quarter: Q2 2026

Historical Earnings Predictions

Quarter Signal 1D Return 5D Return 20D Return Confidence Actual 5D
Q2 2026 BUY -0.24% +2.48% +0.44% 100.0% +2.12%
Q4 2025 SELL -1.11% -0.69% -0.95% 100.0% -2.37%

Earnings Transcripts

SEC 8-K filings with transcript text

View All
2026
Q2

Q2 2026 Earnings

8-K BUY

Jul 7, 2026 · 100% conf.

AI Prediction BUY

1D

-0.24%

$12.72

Act: +0.00%

5D

+2.48%

$13.07

Act: +2.12%

20D

+0.44%

$12.81

Price: $12.75 Prob +5D: 100% AUC: 1.000
0001476765-26-000036

gbdc-20260707

false000147676500014767652026-07-072026-07-07

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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 7, 2026

GOLUB CAPITAL BDC, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware 814-00794 27-2326940

(State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

__ 200 Park Avenue, 25th Floor, New York, NY 10166_ _

(Address of Principal Executive Offices)          (Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060

____ ____

(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 SymbolName of each exchange on which registered

Common Stock, par value $0.001 per shareGBDC The Nasdaq Global Select Market

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

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. o

Item 2.02.    Results of Operations and Financial Condition.

On July 7, 2026, Golub Capital BDC, Inc. issued a press release announcing that it will release its financial results for the quarter ended June 30, 2026 on Monday, August 3, 2026 after the close of the financial markets. A copy of this press release is attached hereto as Exhibit 99.1.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such Section. The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01.    Financial Statements and Exhibits.

(d)    Exhibits.

99.1    Press release of Golub Capital BDC, Inc., dated as of July 7, 2026

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

SIGNATURES

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

GOLUB CAPITAL BDC, INC.

Date: July 7, 2026 By:      /s/ Christopher C. Ericson

Name:      Christopher C. Ericson

Title:     Chief Financial Officer

2026
Q1

Q1 2026 Earnings

8-K

May 4, 2026

0001476765-26-000029

gbdc-20260504

false000147676500014767652026-05-042026-05-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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, 2026

GOLUB CAPITAL BDC, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware814-0079427-2326940

(State or Other Jurisdiction

of Incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

__ 200 Park Avenue, 25th Floor, New York, NY 10166_ _

(Address of Principal Executive Offices)          (Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060

____ ____

(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 SymbolName of each exchange on which registered

Common Stock, par value $0.001 per shareGBDC The Nasdaq Global Select Market

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

Emerging growth company o

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. o

Item 2.02.

Results of Operations and Financial Condition.

On May 4, 2026, Golub Capital BDC, Inc. issued a press release announcing its financial results for its second fiscal quarter ended March 31, 2026. A copy of this press release is attached hereto as Exhibit 99.1.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibits 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such Section.  The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01.

Financial Statements and Exhibits.

(d) Exhibits.

99.1 Press Release of Golub Capital BDC, Inc., dated as of May 4, 2026.

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

SIGNATURES

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

GOLUB CAPITAL BDC, INC.

Date: May 4, 2026

By:      /s/ Christopher C. Ericson

Name:     Christopher C. Ericson

Title:     Chief Financial Officer

2026
Q1

Q1 2026 Earnings

8-K

May 4, 2026

0001476765-26-000032

gbdc-20260504

false000147676500014767652026-05-042026-05-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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, 2026

GOLUB CAPITAL BDC, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware 814-00794 27-2326940

(State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

__ 200 Park Avenue, 25th Floor, New York, NY 10166_ _

(Address of Principal Executive Offices)          (Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060

(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 SymbolName of each exchange on which registered

Common Stock, par value $0.001 per shareGBDC The Nasdaq Global Select Market

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

Emerging growth company o

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. o

Item 2.02. Results of Operations and Financial Condition.

On May 5, 2026, Golub Capital BDC, Inc. will host a conference call to discuss its financial results for its second fiscal quarter ended March 31, 2026. In connection therewith, Golub Capital BDC, Inc. provided an earnings presentation on its website at http://www.golubcapitalbdc.com. A copy of the earnings presentation is attached hereto as Exhibit 99.1.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such Section. The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

99.1

Golub Capital BDC, Inc. Second Quarter 2026 Earnings Presentation

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

SIGNATURES

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

GOLUB CAPITAL BDC, INC.

Date: May 4, 2026 By:      /s/ Christopher C. Ericson

Name:     Christopher C. Ericson

Title:     Chief Financial Officer

2026
Q1

Q1 2026 Earnings

8-K

Apr 6, 2026

0001476765-26-000016

gbdc-20260406

false000147676500014767652026-04-062026-04-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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 6, 2026

GOLUB CAPITAL BDC, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware 814-00794 27-2326940

(State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

__ 200 Park Avenue, 25th Floor, New York, NY 10166_ _

(Address of Principal Executive Offices)          (Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060

____ ____

(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 SymbolName of each exchange on which registered

Common Stock, par value $0.001 per shareGBDC The Nasdaq Global Select Market

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

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. o

Item 2.02.    Results of Operations and Financial Condition.

On April 6, 2026, Golub Capital BDC, Inc. issued a press release announcing that it will release its financial results for the quarter ended March 31, 2026 on Monday, May 4, 2026 after the close of the financial markets. A copy of this press release is attached hereto as Exhibit 99.1.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such Section. The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01.    Financial Statements and Exhibits.

(d)    Exhibits.

99.1    Press release of Golub Capital BDC, Inc., dated as of April 6, 2026

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

SIGNATURES

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

GOLUB CAPITAL BDC, INC.

Date: April 6, 2026 By:      /s/ Christopher C. Ericson

Name:      Christopher C. Ericson

Title:     Chief Financial Officer

2025
Q4

Q4 2025 Earnings

8-K SELL

Feb 4, 2026 · 100% conf.

AI Prediction SELL

1D

-1.11%

$12.92

Act: -5.21%

5D

-0.69%

$12.97

Act: -2.37%

20D

-0.95%

$12.94

Act: -5.13%

Price: $13.06 Prob +5D: 0% AUC: 1.000
0001476765-26-000011

gbdc-20260204false000147676500014767652026-02-042026-02-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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): February 4, 2026

GOLUB CAPITAL BDC, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware 814-00794 27-2326940 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

__ 200 Park Avenue, 25th Floor, New York, NY 10166_ _ (Address of Principal Executive Offices)          (Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060

(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 SymbolName of each exchange on which registered Common Stock, par value $0.001 per shareGBDC The Nasdaq Global Select Market

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

Emerging growth company o

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. o

Item 2.02. Results of Operations and Financial Condition.

On February 5, 2026, Golub Capital BDC, Inc. will host a conference call to discuss its financial results for its first fiscal quarter ended December 31, 2025. In connection therewith, Golub Capital BDC, Inc. provided an earnings presentation on its website at http://www.golubcapitalbdc.com. A copy of the earnings presentation is attached hereto as Exhibit 99.1.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such Section. The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

99.1 Golub Capital BDC, Inc. First Quarter 2026 Earnings Presentation

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

SIGNATURES

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

GOLUB CAPITAL BDC, INC.

Date: February 4, 2026By:      /s/ Christopher C. Ericson

Name:     Christopher C. Ericson Title:     Chief Financial Officer

2025
Q4

Q4 2025 Earnings

8-K SELL

Feb 4, 2026 · 100% conf.

AI Prediction SELL

1D

-1.11%

$12.92

Act: -5.21%

5D

-0.69%

$12.97

Act: -2.37%

20D

-0.95%

$12.94

Act: -5.13%

Price: $13.06 Prob +5D: 0% AUC: 1.000
0001476765-26-000010

gbdc-20260204false000147676500014767652026-02-042026-02-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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): February 4, 2026

GOLUB CAPITAL BDC, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware814-0079427-2326940 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

__ 200 Park Avenue, 25th Floor, New York, NY 10166_ _ (Address of Principal Executive Offices)          (Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060

____ ____ (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 SymbolName of each exchange on which registered Common Stock, par value $0.001 per shareGBDC The Nasdaq Global Select Market

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

Emerging growth company o

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. o

Item 2.02. Results of Operations and Financial Condition.

On February 4, 2026, Golub Capital BDC, Inc. issued a press release announcing its financial results for its first fiscal quarter ended December 31, 2025. A copy of this press release is attached hereto as Exhibit 99.1.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibits 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such Section.  The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

99.1 Press Release of Golub Capital BDC, Inc., dated as of February 4, 2026.

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

SIGNATURES

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

GOLUB CAPITAL BDC, INC.

Date: February 4, 2026 By:      /s/ Christopher C. Ericson

Name:     Christopher C. Ericson Title:     Chief Financial Officer

2025
Q4

Q4 2025 Earnings

8-K SELL

Jan 8, 2026 · 100% conf.

AI Prediction SELL

1D

-1.11%

$12.92

Act: -5.21%

5D

-0.69%

$12.97

Act: -2.37%

20D

-0.95%

$12.94

Act: -5.13%

Price: $13.06 Prob +5D: 0% AUC: 1.000
0001476765-26-000003

gbdc-20260108false00014767651/8/202600014767652026-01-082026-01-08

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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 8, 2026

GOLUB CAPITAL BDC, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware 814-00794 27-2326940 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

__ 200 Park Avenue, 25th Floor, New York, NY 10166_ _ (Address of Principal Executive Offices)          (Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060 ____ ____ (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 SymbolName of each exchange on which registered Common Stock, par value $0.001 per shareGBDC The Nasdaq Global Select Market

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

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. o

Item 2.02.    Results of Operations and Financial Condition.

On January 8, 2026, Golub Capital BDC, Inc. issued a press release announcing that it will release its financial results for the quarter ended December 31, 2025 on Wednesday, February 4, 2026 after the close of the financial markets. A copy of this press release is attached hereto as Exhibit 99.1.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such Section. The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01.    Financial Statements and Exhibits.

(d)    Exhibits.

99.1    Press release of Golub Capital BDC, Inc., dated as of January 8, 2026 104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

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

GOLUB CAPITAL BDC, INC.

Date: January 8, 2026By:      /s/ Christopher C. Ericson

Name:      Christopher C. Ericson

Title:     Chief Financial Officer

2025
Q3

Q3 2025 Earnings

8-K

Nov 18, 2025

0001476765-25-000095

gbdc-20251118false000147676500014767652025-11-182025-11-18

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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 18, 2025

GOLUB CAPITAL BDC, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware 814-00794 27-2326940 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

__ 200 Park Avenue, 25th Floor, New York, NY 10166_ _ (Address of Principal Executive Offices)          (Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060

(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 SymbolName of each exchange on which registered Common Stock, par value $0.001 per shareGBDC The Nasdaq Global Select Market

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

Emerging growth company o

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. o

Item 2.02. Results of Operations and Financial Condition.

On November 19, 2025, Golub Capital BDC, Inc. will host a conference call to discuss its financial results for its fourth fiscal quarter ended September 30, 2025. In connection therewith, Golub Capital BDC, Inc. provided an earnings presentation on its website at http://www.golubcapitalbdc.com. A copy of the earnings presentation is attached hereto as Exhibit 99.1.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such Section. The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

99.1 Golub Capital BDC, Inc. Fourth Quarter 2025 Earnings Presentation

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

SIGNATURES

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

GOLUB CAPITAL BDC, INC.

Date: November 18, 2025By:      /s/ Christopher C. Ericson

Name:     Christopher C. Ericson Title:     Chief Financial Officer

2025
Q3

Q3 2025 Earnings

8-K

Nov 18, 2025

0001476765-25-000094

gbdc-20251118false000147676500014767652025-11-182025-11-18

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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 18, 2025

GOLUB CAPITAL BDC, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware814-0079427-2326940 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

__ 200 Park Avenue, 25th Floor, New York, NY 10166_ _ (Address of Principal Executive Offices)          (Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060

____ ____ (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 SymbolName of each exchange on which registered Common Stock, par value $0.001 per shareGBDC The Nasdaq Global Select Market

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

Emerging growth company o

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. o

Item 2.02. Results of Operations and Financial Condition.

On November 18, 2025, Golub Capital BDC, Inc. issued a press release announcing its financial results for its fourth fiscal quarter ended September 30, 2025. A copy of this press release is attached hereto as Exhibit 99.1.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibits 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such Section.  The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

99.1 Press Release of Golub Capital BDC, Inc., dated as of November 18, 2025.

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

SIGNATURES

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

GOLUB CAPITAL BDC, INC.

Date: November 18, 2025 By:      /s/ Christopher C. Ericson

Name:     Christopher C. Ericson Title:     Chief Financial Officer

2025
Q3

Q3 2025 Earnings

8-K

Oct 7, 2025

0001476765-25-000080

gbdc-20251007false000147676500014767652024-10-072024-10-07

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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 7, 2025

GOLUB CAPITAL BDC, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware 814-00794 27-2326940 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

__ 200 Park Avenue, 25th Floor, New York, NY 10166_ _ (Address of Principal Executive Offices)          (Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060 ____ ____ (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 SymbolName of each exchange on which registered Common Stock, par value $0.001 per shareGBDC The Nasdaq Global Select Market

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

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. o

Item 2.02.    Results of Operations and Financial Condition.

On October 7, 2025, Golub Capital BDC, Inc. issued a press release announcing that it will release its financial results for the quarter and the year ended September 30, 2025 on Tuesday, November 18, 2025 after the close of the financial markets. A copy of this press release is attached hereto as Exhibit 99.1.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such Section. The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01.    Financial Statements and Exhibits.

(d)    Exhibits.

99.1    Press release of Golub Capital BDC, Inc., dated as of October 7, 2025 104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

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

GOLUB CAPITAL BDC, INC.

Date: October 7, 2025By:      /s/ Christopher C. Ericson

Name:      Christopher C. Ericson

Title:     Chief Financial Officer

2025
Q2

Q2 2025 Earnings

8-K

Aug 4, 2025

0001476765-25-000075

gbdc-20250804false000147676500014767652025-08-042025-08-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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, 2025

GOLUB CAPITAL BDC, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware 814-00794 27-2326940 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

__ 200 Park Avenue, 25th Floor, New York, NY 10166_ _ (Address of Principal Executive Offices)          (Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060

(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 SymbolName of each exchange on which registered Common Stock, par value $0.001 per shareGBDC The Nasdaq Global Select Market

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

Emerging growth company o

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. o

Item 2.02. Results of Operations and Financial Condition.

On August 5, 2025, Golub Capital BDC, Inc. will host a conference call to discuss its financial results for its third fiscal quarter ended June 30, 2025. In connection therewith, Golub Capital BDC, Inc. provided an earnings presentation on its website at http://www.golubcapitalbdc.com. A copy of the earnings presentation is attached hereto as Exhibit 99.1.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such Section. The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

99.1 Golub Capital BDC, Inc. Third Quarter 2025 Earnings Presentation

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

SIGNATURES

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

GOLUB CAPITAL BDC, INC.

Date: August 4, 2025By:      /s/ Christopher C. Ericson

Name:     Christopher C. Ericson Title:     Chief Financial Officer

2025
Q2

Q2 2025 Earnings

8-K

Aug 4, 2025

0001476765-25-000074

gbdc-20250804false000147676500014767652025-08-042025-08-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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, 2025

GOLUB CAPITAL BDC, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware814-0079427-2326940 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

__ 200 Park Avenue, 25th Floor, New York, NY 10166_ _ (Address of Principal Executive Offices)          (Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060

____ ____ (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 SymbolName of each exchange on which registered Common Stock, par value $0.001 per shareGBDC The Nasdaq Global Select Market

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

Emerging growth company o

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. o

Item 2.02. Results of Operations and Financial Condition.

On August 4, 2025, Golub Capital BDC, Inc. issued a press release announcing its financial results for its third fiscal quarter ended June 30, 2025. A copy of this press release is attached hereto as Exhibit 99.1.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibits 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such Section.  The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

99.1 Press Release of Golub Capital BDC, Inc., dated as of August 4, 2025.

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

SIGNATURES

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

GOLUB CAPITAL BDC, INC.

Date: August 4, 2025 By:      /s/ Christopher C. Ericson

Name:     Christopher C. Ericson Title:     Chief Financial Officer

2025
Q2

Q2 2025 Earnings

8-K

Jul 7, 2025

0001476765-25-000066

gbdc-20250707false000147676500014767652025-07-072025-07-07

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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 7, 2025

GOLUB CAPITAL BDC, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware 814-00794 27-2326940 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

__ 200 Park Avenue, 25th Floor, New York, NY 10166_ _ (Address of Principal Executive Offices)          (Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060 ____ ____ (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 SymbolName of each exchange on which registered Common Stock, par value $0.001 per shareGBDC The Nasdaq Global Select Market

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

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. o

Item 2.02.    Results of Operations and Financial Condition.

On July 7, 2025, Golub Capital BDC, Inc. issued a press release announcing that it will release its financial results for the quarter ended June 30, 2025 on Monday, August 4, 2025 after the close of the financial markets. A copy of this press release is attached hereto as Exhibit 99.1.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such Section. The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01.    Financial Statements and Exhibits.

(d)    Exhibits.

99.1    Press release of Golub Capital BDC, Inc., dated as of July 7, 2025 104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

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

GOLUB CAPITAL BDC, INC.

Date: July 7, 2025By:      /s/ Christopher C. Ericson

Name:      Christopher C. Ericson

Title:     Chief Financial Officer

2025
Q1

Q1 2025 Earnings

8-K

May 5, 2025

0001476765-25-000038

gbdc-20250505false000147676500014767652025-05-052025-05-05

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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, 2025

GOLUB CAPITAL BDC, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware 814-00794 27-2326940 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

__ 200 Park Avenue, 25th Floor, New York, NY 10166_ _ (Address of Principal Executive Offices)          (Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060

(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 SymbolName of each exchange on which registered Common Stock, par value $0.001 per shareGBDC The Nasdaq Global Select Market

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

Emerging growth company o

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. o

Item 2.02. Results of Operations and Financial Condition.

On May 6, 2025, Golub Capital BDC, Inc. will host a conference call to discuss its financial results for its second fiscal quarter ended March 31, 2025. In connection therewith, Golub Capital BDC, Inc. provided an earnings presentation on its website at http://www.golubcapitalbdc.com. A copy of the earnings presentation is attached hereto as Exhibit 99.1.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such Section. The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

99.1 Golub Capital BDC, Inc. Second Quarter 2025 Earnings Presentation

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

SIGNATURES

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

GOLUB CAPITAL BDC, INC.

Date: May 5, 2025By:      /s/ Christopher C. Ericson

Name:     Christopher C. Ericson Title:     Chief Financial Officer

2025
Q1

Q1 2025 Earnings

8-K

May 5, 2025

0001476765-25-000037

gbdc-20250505false000147676500014767652025-05-052025-05-05

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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, 2025

GOLUB CAPITAL BDC, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware814-0079427-2326940 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

__ 200 Park Avenue, 25th Floor, New York, NY 10166_ _ (Address of Principal Executive Offices)          (Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060

____ ____ (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 SymbolName of each exchange on which registered Common Stock, par value $0.001 per shareGBDC The Nasdaq Global Select Market

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

Emerging growth company o

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. o

Item 2.02. Results of Operations and Financial Condition.

On May 5, 2025, Golub Capital BDC, Inc. issued a press release announcing its financial results for its second fiscal quarter ended March 31, 2025. A copy of this press release is attached hereto as Exhibit 99.1.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibits 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such Section.  The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

99.1 Press Release of Golub Capital BDC, Inc., dated as of May 5, 2025.

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

SIGNATURES

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

GOLUB CAPITAL BDC, INC.

Date: May 5, 2025 By:      /s/ Christopher C. Ericson

Name:     Christopher C. Ericson Title:     Chief Financial Officer

2025
Q1

Q1 2025 Earnings

8-K

Apr 4, 2025

0001476765-25-000026

gbdc-20250404false000147676500014767652025-04-042025-04-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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 4, 2025

GOLUB CAPITAL BDC, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware 814-00794 27-2326940 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

__ 200 Park Avenue, 25th Floor, New York, NY 10166_ _ (Address of Principal Executive Offices)          (Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060 ____ ____ (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 SymbolName of each exchange on which registered Common Stock, par value $0.001 per shareGBDC The Nasdaq Global Select Market

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

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. o

Item 2.02.    Results of Operations and Financial Condition.

On April 4, 2025, Golub Capital BDC, Inc. issued a press release announcing that it will release its financial results for the quarter ended March 31, 2025 on Monday, May 5, 2025 after the close of the financial markets. A copy of this press release is attached hereto as Exhibit 99.1.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such Section. The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01.    Financial Statements and Exhibits.

(d)    Exhibits.

99.1    Press release of Golub Capital BDC, Inc., dated as of April 4, 2025

SIGNATURES

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

GOLUB CAPITAL BDC, INC.

Date: April 4, 2025By:      /s/ Christopher C. Ericson

Name:      Christopher C. Ericson

Title:     Chief Financial Officer

2024
Q4

Q4 2024 Earnings

8-K

Feb 4, 2025

0001476765-25-000015

gbdc-20250204false000147676500014767652025-02-042025-02-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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): February 4, 2025

GOLUB CAPITAL BDC, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware 814-00794 27-2326940 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

__ 200 Park Avenue, 25th Floor, New York, NY 10166_ _ (Address of Principal Executive Offices)          (Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060

(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 SymbolName of each exchange on which registered Common Stock, par value $0.001 per shareGBDC The Nasdaq Global Select Market

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

Emerging growth company o

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. o

Item 2.02. Results of Operations and Financial Condition.

On February 5, 2025, Golub Capital BDC, Inc. will host a conference call to discuss its financial results for its first fiscal quarter ended December 31, 2024. In connection therewith, Golub Capital BDC, Inc. provided an earnings presentation on its website at http://www.golubcapitalbdc.com. A copy of the earnings presentation is attached hereto as Exhibit 99.1.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such Section. The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

99.1 Golub Capital BDC, Inc. First Quarter 2025 Earnings Presentation

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

SIGNATURES

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

GOLUB CAPITAL BDC, INC.

Date: February 4, 2025By:      /s/ Christopher C. Ericson

Name:     Christopher C. Ericson Title:     Chief Financial Officer

2024
Q4

Q4 2024 Earnings

8-K

Feb 4, 2025

0001476765-25-000014

gbdc-20250204false000147676500014767652025-02-042025-02-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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): February 4, 2025

GOLUB CAPITAL BDC, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware814-0079427-2326940 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

__ 200 Park Avenue, 25th Floor, New York, NY 10166_ _ (Address of Principal Executive Offices)          (Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060

____ ____ (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 SymbolName of each exchange on which registered Common Stock, par value $0.001 per shareGBDC The Nasdaq Global Select Market

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

Emerging growth company o

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. o

Item 2.02. Results of Operations and Financial Condition.

On February 4, 2025, Golub Capital BDC, Inc. issued a press release announcing its financial results for its first fiscal quarter ended December 31, 2024. A copy of this press release is attached hereto as Exhibit 99.1.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibits 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such Section.  The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

99.1 Press Release of Golub Capital BDC, Inc., dated as of February 4, 2025.

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

SIGNATURES

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

GOLUB CAPITAL BDC, INC.

Date: February 4, 2025 By:      /s/ Christopher C. Ericson

Name:     Christopher C. Ericson Title:     Chief Financial Officer

2024
Q4

Q4 2024 Earnings

8-K

Jan 6, 2025

0001476765-25-000004

gbdc-20250106false000147676500014767652025-01-062025-01-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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 6, 2025

GOLUB CAPITAL BDC, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware 814-00794 27-2326940 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

__ 200 Park Avenue, 25th Floor, New York, NY 10166_ _ (Address of Principal Executive Offices)          (Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060 ____ ____ (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 SymbolName of each exchange on which registered Common Stock, par value $0.001 per shareGBDC The Nasdaq Global Select Market

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

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. o

Item 2.02.    Results of Operations and Financial Condition.

On January 6, 2025, Golub Capital BDC, Inc. issued a press release announcing that it will release its financial results for the quarter ended December 31, 2024 on Tuesday, February 4, 2025 after the close of the financial markets. A copy of this press release is attached hereto as Exhibit 99.1.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such Section. The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01.    Financial Statements and Exhibits.

(d)    Exhibits.

99.1    Press release of Golub Capital BDC, Inc., dated as of January 6, 2025 104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

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

GOLUB CAPITAL BDC, INC.

Date: January 6, 2025By:      /s/ Christopher C. Ericson

Name:      Christopher C. Ericson

Title:     Chief Financial Officer

2024
Q3

Q3 2024 Earnings

8-K

Nov 19, 2024

0001476765-24-000131

gbdc-20241119false000147676500014767652024-11-192024-11-19

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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 19, 2024

GOLUB CAPITAL BDC, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware 814-00794 27-2326940 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

__ 200 Park Avenue, 25th Floor, New York, NY 10166_ _ (Address of Principal Executive Offices)          (Zip Code)

Registrant’s telephone number, including area code: (212) 750-6060

(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 SymbolName of each exchange on which registered Common Stock, par value $0.001 per shareGBDC The Nasdaq Global Select Market

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

Emerging growth company o

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. o

Item 2.02. Results of Operations and Financial Condition.

On November 20, 2024, Golub Capital BDC, Inc. will host a conference call to discuss its financial results for its fourth fiscal quarter ended September 30, 2024. In connection therewith, Golub Capital BDC, Inc. provided an earnings presentation on its website at http://www.golubcapitalbdc.com. A copy of the earnings presentation is attached hereto as Exhibit 99.1.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of such Section. The information in this Current Report on Form 8-K shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

99.1 Golub Capital BDC, Inc. Fourth Quarter 2024 Earnings Presentation

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

SIGNATURES

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

GOLUB CAPITAL BDC, INC.

Date: November 19, 2024By:      /s/ Christopher C. Ericson

Name:     Christopher C. Ericson Title:     Chief Financial Officer

About Golub Capital BDC Inc. (GBDC) Earnings

This page provides Golub Capital BDC Inc. (GBDC) earnings call transcripts from SEC 8-K filings along with AI-powered predictions for post-earnings price movements. Our machine learning models analyze historical earnings data, pre-earnings price patterns, volume changes, and volatility to predict 1-day, 5-day, and 20-day returns after each earnings release.

Earnings transcripts are sourced directly from SEC EDGAR filings. Predictions are generated using gradient boosting models trained on GBDC's historical earnings reactions. All predicted returns are shown as percentages, and predicted prices are calculated from the closing price at the time of prediction. Past performance does not guarantee future results.

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