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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
WF
326
WinCap Financial
Massachusetts
$1.05M
OPERF
327
Oregon Public Employees Retirement Fund
Oregon
$1.04M
AIP
328
Ameritas Investment Partners
Nebraska
$1.03M
BNP Paribas Asset Management
329
BNP Paribas Asset Management
France
$1.02M
WP
330
Woodline Partners
California
$998K
US Bancorp
331
US Bancorp
Minnesota
$987K
AC
332
Allstate Corporation
Illinois
$984K
FRM
333
Fox Run Management
Connecticut
$953K
RCAG
334
Rehmann Capital Advisory Group
Michigan
$953K
N
335
Natixis
France
$925K
SOADOR
336
State of Alaska Department of Revenue
Alaska
$910K
IIM
337
INTECH Investment Management
Florida
$905K
OTL
338
Oak Thistle LLC
New York
$904K
CCS
339
Concentric Capital Strategies
Connecticut
$903K
Schroder Investment Management Group
340
Schroder Investment Management Group
United Kingdom
$900K
AA
341
AlphaCentric Advisors
Puerto Rico
$823K
CA
342
Crossingbridge Advisors
New York
$823K
USPCM
343
Union Square Park Capital Management
New York
$823K
CAM
344
Crown Advisors Management
California
$823K
VPIM
345
Vanguard Personalized Indexing Management
California
$820K
AAIS
346
ABN AMRO Investment Solutions
$820K
TC
347
Truvestments Capital
Florida
$813K
PNC Financial Services Group
348
PNC Financial Services Group
Pennsylvania
$809K
Brown Advisory
349
Brown Advisory
Maryland
$803K
EAM
350
Eschler Asset Management
United Kingdom
$795K