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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
LIP
151
Lighthouse Investment Partners
Florida
$5.83M
MWM
152
Moran Wealth Management
Florida
$5.72M
CBUSF
153
Construction & Building Unions Superannuation Fund
Australia
$5.67M
Mackenzie Financial
154
Mackenzie Financial
Ontario, Canada
$5.57M
GIP
155
Greatmark Investment Partners
Georgia
$5.54M
Adage Capital Partners
156
Adage Capital Partners
Massachusetts
$5.41M
ACM
157
Aquatic Capital Management
Illinois
$5.34M
PCH
158
Polar Capital Holdings
United Kingdom
$5.33M
QCM
159
Quantinno Capital Management
New York
$5.3M
XT
160
XTX Topco
Cayman Islands
$5.18M
MIM
161
MetLife Investment Management
New Jersey
$5.17M
Zurich Cantonal Bank
162
Zurich Cantonal Bank
Switzerland
$5.06M
Bank of Montreal
163
Bank of Montreal
Ontario, Canada
$5.03M
EGA
164
Eagle Global Advisors
Texas
$4.97M
IIA
165
IPG Investment Advisors
California
$4.96M
MCM
166
Marathon Capital Management
Maryland
$4.86M
Universal-Beteiligungs- und Servicegesellschaft
167
Universal-Beteiligungs- und Servicegesellschaft
Germany
$4.72M
EAM
168
EdenTree Asset Management
United Kingdom
$4.68M
CAPTRUST Financial Advisors
169
CAPTRUST Financial Advisors
North Carolina
$4.65M
VAM
170
Vanguard Asset Management
$4.64M
HVP
171
Hudson Value Partners
Florida
$4.55M
Prudential Financial
172
Prudential Financial
New Jersey
$4.51M
Chevy Chase Trust
173
Chevy Chase Trust
Maryland
$4.49M
Fifth Third Bancorp
174
Fifth Third Bancorp
Ohio
$4.45M
HA
175
Heartland Advisors
Wisconsin
$4.42M