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Builders FirstSource
BLDR

Overview Fund Activity

761 hedge funds and large institutions have $12.7B invested in Builders FirstSource in 2025 Q2 according to their latest regulatory filings, with 118 funds opening new positions, 280 increasing their positions, 282 reducing their positions, and 120 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
761
Holders Change
-13
Holders Change %
-1.68%
% of All Funds
10.21%
Holding in Top 10
16
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.21%
New
118
Increased
280
Reduced
282
Closed
120
Calls
$205M
Puts
$220M
Net Calls
-$14.9M
Net Calls Change
-$3.25M

Top Buyers

1
Fidelity Investments
Fidelity Investments
Massachusetts
$1.36B
2
BWA
Brave Warrior Advisors
New York
$213M
3
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
$56.9M
4
Morgan Stanley
Morgan Stanley
New York
$204M
5
Janus Henderson Group
Janus Henderson Group
United Kingdom
$100M

Top Sellers

1
DZ Bank
DZ Bank
Germany
$1.73M
2
Robeco Institutional Asset Management
Robeco Institutional Asset Management
Netherlands
$12.4M
3
BlackRock
BlackRock
New York
$1.01B
4
Pacer Advisors
Pacer Advisors
Pennsylvania
$1.07M
5
Vanguard Group
Vanguard Group
Pennsylvania
$1.47B
Name Holding Trade Value Shares
Change 		Shares
Change %
Susquehanna International Group
101
Susquehanna International Group
Pennsylvania
$18.8M +$12.5M +106,812 +197%
Millennium Management
102
Millennium Management
New York
$18.5M +$9.16M +78,472 +98%
Adage Capital Partners
103
Adage Capital Partners
Massachusetts
$18.2M +$10.1M +86,758 +125%
Royal Bank of Canada
104
Royal Bank of Canada
Ontario, Canada
$18.1M -$6.03M -51,662 -25%
KHCM
105
Kettle Hill Capital Management
New York
$17.7M +$17.7M +151,668 New
Caisse de Depot et Placement du Quebec (CDPQ)
106
Caisse de Depot et Placement du Quebec (CDPQ)
Quebec, Canada
$17.5M -$5.42M -46,420 -24%
Grantham, Mayo, Van Otterloo & Co (GMO)
107
Grantham, Mayo, Van Otterloo & Co (GMO)
Massachusetts
$17.4M -$6.36M -54,532 -27%
New York State Common Retirement Fund
108
New York State Common Retirement Fund
New York
$17.3M +$3.51M +30,051 +25%
Fisher Asset Management
109
Fisher Asset Management
Washington
$17M -$4.84M -41,497 -22%
HB
110
Hauser Brothers
Germany
$16.6M +$3.1M +26,548 +23%
Man Group
111
Man Group
United Kingdom
$15.5M +$5.19M +44,463 +50%
Korea Investment Corp
112
Korea Investment Corp
South Korea
$15.2M +$5.74M +49,220 +61%
KCM
113
Kingdon Capital Management
New York
$15M +$15M +128,500 New
GAM
114
Gotham Asset Management
New York
$15M -$2.53M -21,712 -14%
PAIM
115
Punch & Associates Investment Management
Minnesota
$14.9M +$627K +5,376 +4%
Parnassus Investments
116
Parnassus Investments
California
$14.9M +$2.3M +19,723 +18%
FAM
117
Fred Alger Management
New York
$14.9M -$712K -6,098 -5%
MIF
118
Mediolanum International Funds
Ireland
$14.9M +$8.69M +74,274 +141%
AIM
119
Achmea Investment Management
Netherlands
$14.1M +$497K +4,259 +4%
Principal Financial Group
120
Principal Financial Group
Iowa
$14.1M -$2.04M -17,488 -13%
AIM
121
Atlantic Investment Management
New York
$13.9M +$13.9M +119,000 New
State Board of Administration of Florida Retirement System
122
State Board of Administration of Florida Retirement System
Florida
$13.7M +$146K +1,250 +1%
National Bank of Canada
123
National Bank of Canada
Quebec, Canada
$13.3M +$4.44M +38,029 +50%
N
124
Natixis
France
$13.3M +$11.9M +102,158 +877%
PMAM
125
Picton Mahoney Asset Management
Ontario, Canada
$13M +$3.93M +33,656 +43%
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