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Builders FirstSource

717 hedge funds and large institutions have $8.73B invested in Builders FirstSource in 2026 Q1 according to their latest regulatory filings, with 105 funds opening new positions, 272 increasing their positions, 238 reducing their positions, and 137 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more ownership

Funds ownership:

more funds holding in top 10

Funds holding in top 10:

6% less funds holding

Funds holding: 764717 (-47)

19% less capital invested

Capital invested by funds: $10.8B → $8.73B (-$2.09B)

23% less first-time investments, than exits

New positions opened: 105 | Existing positions closed: 137

Holders
717
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
13
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$178M
Puts
$111M
Net Calls
Net Calls Change

Top Sellers

1 -$236M
2 -$180M
3 -$175M
4
Citadel Advisors
Citadel Advisors
Florida
-$79.4M
5
AssetMark Inc
AssetMark Inc
California
-$61.2M