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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
ALAM
501
Asahi Life Asset Management
Japan
$257K
GIA
502
Guyasuta Investment Advisors
Pennsylvania
$257K
Royal London Asset Management
503
Royal London Asset Management
United Kingdom
$255K
MSA
504
MUFG Securities Americas
New York
$252K
SAM
505
Securian Asset Management
Minnesota
$244K
NFG
506
Northbridge Financial Group
Florida
$243K
Squarepoint
507
Squarepoint
New York
$242K
Artisan Partners
508
Artisan Partners
Wisconsin
$240K
PAG
509
Private Advisor Group
New Jersey
$238K
KRSITF
510
Kentucky Retirement Systems Insurance Trust Fund
Kentucky
$235K
CAM
511
Cidel Asset Management
Ontario, Canada
$234K
CIP
512
Cornerstone Investment Partners
Georgia
$233K
CVM
513
Cheviot Value Management
California
$233K
AFCM
514
Applied Finance Capital Management
Puerto Rico
$231K
WS
515
Wedbush Securities
California
$229K
BSI
516
Bennett Selby Investments
Maine
$227K
SWA
517
SFMG Wealth Advisors
Texas
$227K
BIG
518
Brooklyn Investment Group
New York
$225K
IWC
519
Integrated Wealth Concepts
Massachusetts
$225K
WT
520
Washington Trust
Rhode Island
$222K
LFG
521
Larson Financial Group
Missouri
$222K
CIM
522
Cambria Investment Management
California
$220K
SFM
523
Soros Fund Management
New York
$219K
SFS
524
Sowell Financial Services
Arkansas
$217K
CAM
525
Councilmark Asset Management
Tennessee
$215K