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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
Public Employees Retirement Association of Colorado
351
Public Employees Retirement Association of Colorado
Colorado
$795K
TIAM
352
TT International Asset Management
United Kingdom
$790K
HAM
353
Harber Asset Management
North Carolina
$790K
I
354
InceptionR
California
$788K
BCI
355
Brinker Capital Investments
Pennsylvania
$764K
DTL
356
Dynamic Technology Lab
Singapore
$756K
Pacer Advisors
357
Pacer Advisors
Pennsylvania
$754K
JFG
358
Jefferies Financial Group
New York
$752K
SRC
359
Shufro Rose & Co
New York
$749K
AI
360
Atria Investments
North Carolina
$749K
BAMF
361
BI Asset Management Fondsmaeglerselskab
Denmark
$747K
LFAS
362
Level Four Advisory Services
Texas
$743K
Macquarie Group
363
Macquarie Group
Australia
$733K
UCFA
364
United Capital Financial Advisors
Texas
$721K
GIBU
365
Gulf International Bank (UK)
United Kingdom
$714K
LCM
366
LRT Capital Management
Texas
$703K
SA
367
Sanctuary Advisors
Indiana
$698K
Canada Pension Plan Investment Board
368
Canada Pension Plan Investment Board
Ontario, Canada
$695K
O
369
Ossiam
France
$690K
Aberdeen Group
370
Aberdeen Group
United Kingdom
$682K
ECSS
371
Eurizon Capital SGR SpA
$668K
IP
372
Intellectus Partners
California
$661K
FEG
373
Financial Enhancement Group
Indiana
$658K
Mariner
374
Mariner
Kansas
$658K
IMCOOI
375
Investment Management Corp of Ontario (IMCO)
Canada
$648K