Item 10. Directors, Executive Officers and Corporate Governance

The information required by this item, other than the information regarding the Code of Business Conduct and Ethics and Insider Trading Policy set forth below, appears in our definitive proxy statement for our annual meeting of stockholders to be held May 14, 2026 under the captions “Proposal 1 — Election of Directors,” “Continuing Directors,” “Information Regarding the Board and Its Committees,” “Corporate Governance,” “Delinquent Section 16(a) Reports,” and “Executive Officers of the Registrant,” which information is incorporated herein by reference.

Code of Business Conduct and Ethics

Builders FirstSource, Inc. and its subsidiaries endeavor to do business according to the highest ethical and legal standards, complying with both the letter and spirit of the law. Our board of directors approved a Code of Business Conduct and Ethics that applies to our directors, officers (including our principal executive officer, principal financial officer and principal accounting officer) and employees. Our Code of Business Conduct and Ethics is administered by a compliance committee made up of representatives from our legal, human resources, finance and internal audit departments.

Our employees are encouraged to report any suspected violations of laws, regulations and the Code of Business Conduct and Ethics, and all unethical business practices. We provide continuously monitored hotlines for anonymous reporting by employees.

Our board of directors has also approved a Supplemental Code of Ethics for the Chief Executive Officer, President, and Senior Financial Officers of Builders FirstSource, Inc., which is administered by our general counsel.

Both of these policies are listed as exhibits to this annual report on Form 10-K and can be found in the “Investors” section of our corporate website at: www.bldr.com.

Stockholders may request a free copy of these policies by contacting the Corporate Secretary, Builders FirstSource, Inc., 6031 Connection Drive, Suite 400, Irving, Texas 75309, United States of America.

In addition, within four business days of:

Any amendment to a provision of our Code of Business Conduct and Ethics or our Supplemental Code of Ethics for Chief Executive Officer, President and Senior Financial Officers of Builders FirstSource, Inc. that applies to our chief executive officer, chief financial officer or chief accounting officer as it relates to one or more of the items set forth in Item 406(b) of Regulation S-K; or

The grant of any waiver, including an implicit waiver, from a provision of one of these policies to one of these officers that relates to one or more of the items set forth in Item 406(b) of Regulation S-K,

We will provide information regarding any such amendment or waiver (including the nature of any waiver, the name of the person to whom the waiver was granted and the date of the waiver) on our website at the Internet address above, and such information will be available on our website for at least a 12-month period. In addition, we will disclose on our website at the Internet address above any amendments and waivers to our Code of Business Conduct and Ethics or our Supplemental Code of Ethics for Chief Executive Officer, President and Senior Financial Officers of Builders FirstSource, Inc. that relate to any element of the definition of “code of ethics” enumerated in Item 406(b) of Regulation S-K under the Exchange Act.

Insider Trading Policy

We have an Insider Trading Policy governing the purchase, sale and other dispositions of our securities that applies to all of our personnel, including directors, officers and employees and other covered persons. The Insider Trading Policy is reasonably designed to promote compliance with insider trading laws, rules and regulations, as well as applicable listing standards. A copy of the Insider Trading Policy is filed as Exhibit 19.1 to this report.