BUILDERS FIRSTSOURCE INC (BLDR) Stock Institutional Trading Activity
BUILDERS FIRSTSOURCE INC (BLDR) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Brave Warrior Advisors, Renaissance Technologies LLC, Turtle Creek Asset Management, Giverny Capital, and Parnassus Endeavor Fund. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.
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- BUILDERS FIRSTSOURCE INC (BLDR) stock institutional ownership
- BUILDERS FIRSTSOURCE INC (BLDR) stock insider trading activity
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| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q4 2015 | Renaissance Technologies LLC | Buy | 286,900 | 726,600 | $8,051 |
| Q3 2015 | Renaissance Technologies LLC | Buy | 114,197 | 439,700 | $5,575 |
| Q2 2015 | Renaissance Technologies LLC | Buy | 313,103 | 325,503 | $4,179 |
| Q1 2015 | Renaissance Technologies LLC | Sell | -17,088 | 12,400 | $83 |
| Q3 2014 | Renaissance Technologies LLC | Sell | -58,712 | 29,488 | $161 |
| Q4 2013 | Renaissance Technologies LLC | Buy | 88,200 | 88,200 | $629 |
Frequently asked questions about BLDR activity
Which institutional owners are buying BLDR?
Institutional owners buying BLDR include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in BLDR activity?
"Buy" means an investor increased their reported position in BLDR compared to the prior reporting period. This reflects growing exposure to BUILDERS FIRSTSOURCE INC (BLDR) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in BLDR increasing?
Institutional interest in BLDR can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.