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Builders FirstSource

719 hedge funds and large institutions have $8.74B invested in Builders FirstSource in 2026 Q1 according to their latest regulatory filings, with 104 funds opening new positions, 274 increasing their positions, 239 reducing their positions, and 135 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: 765719 (-46)

19% less capital invested

Capital invested by funds: $10.8B → $8.74B (-$2.09B)

23% less first-time investments, than exits

New positions opened: 104 | Existing positions closed: 135

Holders
719
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
Name Holding Trade Value Shares
Change
Change in
Stake
UM
276
UniSuper Management
Australia
$1.61M
Rockefeller Capital Management
277
Rockefeller Capital Management
New York
$1.6M
TI
278
Tidal Investments
Wisconsin
$1.59M
SC
279
Scotia Capital
Ontario, Canada
$1.59M
TAM
280
Tabor Asset Management
New York
$1.59M
MVP
281
Miller Value Partners
Florida
$1.56M
Daiwa Securities Group
282
Daiwa Securities Group
Japan
$1.54M
PHS
283
Pekin Hardy Strauss
Illinois
$1.53M
Cambridge Investment Research Advisors
284
Cambridge Investment Research Advisors
Iowa
$1.5M
FAF
285
Fjarde Ap-fonden
Sweden
$1.49M
X
286
Xponance
Pennsylvania
$1.49M
DFCM
287
Dark Forest Capital Management
Puerto Rico
$1.48M
WA
288
Wasatch Advisors
Utah
$1.47M
URS
289
Utah Retirement Systems
Utah
$1.46M
BPMC
290
Buckland Partners Management Co
New York
$1.41M
PGCM
291
Prescott Group Capital Management
Oklahoma
$1.4M
American Century Companies
292
American Century Companies
Missouri
$1.39M
TFS
293
Thoroughbred Financial Services
Tennessee
$1.39M
PL
294
Polianta Ltd
Jersey
$1.37M
PFSRSONJ
295
Police & Firemen's Retirement System of New Jersey
New Jersey
$1.37M
FPCP
296
Fort Point Capital Partners
California
$1.35M
M&T Bank
297
M&T Bank
New York
$1.34M
WCP
298
Welch Capital Partners
New York
$1.34M
Bank of Nova Scotia
299
Bank of Nova Scotia
Ontario, Canada
$1.33M
Truist Financial
300
Truist Financial
North Carolina
$1.33M