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Builders FirstSource

752 hedge funds and large institutions have $10.8B invested in Builders FirstSource in 2025 Q4 according to their latest regulatory filings, with 111 funds opening new positions, 259 increasing their positions, 297 reducing their positions, and 119 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

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

less first-time investments, than exits

New positions opened: | Existing positions closed:

less funds holding

Funds holding:

less ownership

Funds ownership:

8% less funds holding in top 10

Funds holding in top 10: 1312 (-1)

13% less repeat investments, than reductions

Existing positions increased: 259 | Existing positions reduced: 297

21% less capital invested

Capital invested by funds: $13.6B → $10.8B (-$2.81B)

Holders
752
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
12
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$160M
Puts
$158M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
ACM
126
Aquatic Capital Management
Illinois
$9.99M
SEI Investments
127
SEI Investments
Pennsylvania
$9.99M
Russell Investments Group
128
Russell Investments Group
United Kingdom
$9.96M
SIC
129
Schwartz Investment Counsel
Michigan
$9.86M
MPM
130
Mountaineer Partners Management
New York
$9.68M
GC
131
Giverny Capital
Quebec, Canada
$9.26M
New York State Teachers Retirement System (NYSTRS)
132
New York State Teachers Retirement System (NYSTRS)
New York
$9.19M
OSAM
133
O'Shaughnessy Asset Management
Connecticut
$9.01M
PL
134
Parkwood LLC
Ohio
$8.87M
PCMI
135
Paradigm Capital Management Inc
New York
$8.82M
DLP
136
De Lisle Partners
United Kingdom
$8.69M
MLIM
137
Mountain Lake Investment Management
Florida
$8.64M
Bank of Montreal
138
Bank of Montreal
Ontario, Canada
$8.61M
Aviva
139
Aviva
United Kingdom
$8.56M
WG
140
Winton Group
United Kingdom
$8.56M
National Bank of Canada
141
National Bank of Canada
Quebec, Canada
$8.38M
Thrivent Financial for Lutherans
142
Thrivent Financial for Lutherans
Minnesota
$8.01M
Manulife (Manufacturers Life Insurance)
143
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$7.97M
WTC
144
WhitTier Trust Company
Nevada
$7.9M
CCIA
145
Campbell & Co Investment Adviser
Maryland
$7.72M
State of Wisconsin Investment Board
146
State of Wisconsin Investment Board
Wisconsin
$7.57M
RA
147
Royce & Associates
New York
$7.52M
PCH
148
Polar Capital Holdings
United Kingdom
$7.46M
CBUSF
149
Construction & Building Unions Superannuation Fund
Australia
$7.08M
Aberdeen Group
150
Aberdeen Group
United Kingdom
$7.03M