0001193125-15-271110 Sample Contracts

12,000,000 Shares BUILDERS FIRSTSOURCE, INC. Common Stock UNDERWRITING AGREEMENT

Underwriting Agreement • July 30th, 2015 • Warburg Pincus Private Equity IX, L.P. • Retail-lumber & other building materials dealers • New York

• Contract Type
  Underwriting Agreement
• Filed
  July 30th, 2015
• Company
  Warburg Pincus Private Equity IX, L.P.
• Industry
  Retail-lumber & other building materials dealers
• Jurisdiction
  New York

Builders FirstSource, Inc.

Warburg Pincus Private Equity IX, L.P. • July 30th, 2015 • Retail-lumber & other building materials dealers • New York

• Company
  Warburg Pincus Private Equity IX, L.P.
• Filed
  July 30th, 2015
• Industry
  Retail-lumber & other building materials dealers
• Jurisdiction
  New York

JOINT FILING AGREEMENT

Joint Filing Agreement • July 30th, 2015 • Warburg Pincus Private Equity IX, L.P. • Retail-lumber & other building materials dealers

• Contract Type
  Joint Filing Agreement
• Filed
  July 30th, 2015
• Company
  Warburg Pincus Private Equity IX, L.P.
• Industry
  Retail-lumber & other building materials dealers

This agreement may be executed in one or more counterparts, each of which shall be considered an original counterpart, and shall become a binding agreement when each of the parties designated as signatories has executed one counterpart.