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Builders FirstSource

785 hedge funds and large institutions have $13.9B invested in Builders FirstSource in 2025 Q1 according to their latest regulatory filings, with 109 funds opening new positions, 300 increasing their positions, 293 reducing their positions, and 129 closing their positions.

New
Increased
Maintained
Reduced
Closed

23% more funds holding in top 10

Funds holding in top 10: 1316 (+3)

1.82% more ownership

Funds ownership: 94.51%96.33% (+1.8%)

2% more repeat investments, than reductions

Existing positions increased: 300 | Existing positions reduced: 293

7% less call options, than puts

Call options by funds: $145M | Put options by funds: $157M

4% less funds holding

Funds holding: 818785 (-33)

10% less capital invested

Capital invested by funds: $15.6B → $13.9B (-$1.63B)

16% less first-time investments, than exits

New positions opened: 109 | Existing positions closed: 129

Holders
785
Holders Change
-33
Holders Change %
-4.03%
% of All Funds
10.53%
Holding in Top 10
16
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+23.08%
% of All Funds
0.21%
New
109
Increased
300
Reduced
293
Closed
129
Calls
$145M
Puts
$157M
Net Calls
-$11.7M
Net Calls Change
+$9.51M
Name Holding Trade Value Shares
Change
Change in
Stake
Bank of Montreal
126
Bank of Montreal
Ontario, Canada
$11.5M -$3.02M -20,765 -18%
Jane Street
127
Jane Street
New York
$11.4M -$17M -116,672 -56%
Man Group
128
Man Group
United Kingdom
$11M -$9.28M -63,797 -42%
PCMI
129
Paradigm Capital Management Inc
New York
$10.7M
RPI
130
Railway Pension Investments
United Kingdom
$10.5M
IMC
131
Inherent Management Corp
New York
$10.5M
DLP
132
De Lisle Partners
United Kingdom
$10.3M +$582K +4,000 +5%
GC
133
Giverny Capital
Quebec, Canada
$10.3M +$12M +82,445 New
Korea Investment Corp
134
Korea Investment Corp
South Korea
$10.1M -$3.62M -24,899 -23%
AAF
135
Andra AP-fonden
Sweden
$10.1M -$13.3M -91,500 -53%
Millennium Management
136
Millennium Management
New York
$9.99M -$6.73M -46,272 -37%
State of Wisconsin Investment Board
137
State of Wisconsin Investment Board
Wisconsin
$9.93M +$836K +5,745 +8%
Aberdeen Group
138
Aberdeen Group
United Kingdom
$9.81M +$4.87M +33,443 +73%
PMAM
139
Picton Mahoney Asset Management
Ontario, Canada
$9.76M -$597K -4,105 -5%
National Bank of Canada
140
National Bank of Canada
Quebec, Canada
$9.49M +$3.09M +21,225 +39%
WGAM
141
Wilkinson Global Asset Management
New York
$9.21M +$241K +1,658 +2%
Allspring Global Investments
142
Allspring Global Investments
North Carolina
$9.05M +$6.87M +47,201 +190%
WTC
143
WhitTier Trust Company
Nevada
$9.02M +$400K +2,746 +4%
Canada Life
144
Canada Life
Manitoba, Canada
$8.74M -$70.7K -486 -0.7%
Adage Capital Partners
145
Adage Capital Partners
Massachusetts
$8.68M -$5.54M -38,058 -35%
Federated Hermes
146
Federated Hermes
Pennsylvania
$8.65M -$3.95M -27,162 -28%
Prudential Financial
147
Prudential Financial
New Jersey
$8.42M -$454K -3,119 -4%
Manulife (Manufacturers Life Insurance)
148
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$8.34M -$301K -2,070 -3%
SEI Investments
149
SEI Investments
Pennsylvania
$8.11M +$1.83M +12,606 +24%
CIM
150
Cambria Investment Management
California
$8.04M -$951K -6,534 -9%

BLDR Hedge Fund Activity: Q1 2025 in Review

785 of the 7,458 institutional investors tracked by Wall St. Rank reported a position in Builders FirstSource (BLDR) for Q1 2025, worth a combined $13.9B — down 10% from $15.6B a quarter earlier.

Sellers outnumbered buyers: 129 funds closed out of BLDR and 109 opened new positions — a net loss of 20 holders — while 293 trimmed existing stakes and 300 added.

The largest buyer was Brave Warrior Advisors, opening a new position worth an estimated $181M. The largest seller was Pacer Advisors, cutting an estimated $212M.

  • 785 institutional investors held Builders FirstSource (BLDR) as of Q1 2025, down from 818 in Q4 2024.
  • Funds reported $13.9B of Builders FirstSource stock for Q1 2025, down 10% quarter-over-quarter.
  • 109 funds opened new Builders FirstSource positions in Q1 2025 and 129 closed out, a net change of -20 holders.
  • The largest Builders FirstSource buyer in Q1 2025 was Brave Warrior Advisors, an estimated $181M added.
  • The largest Builders FirstSource seller in Q1 2025 was Pacer Advisors, an estimated $212M sold.

Based on aggregated 13F filings for Q1 2025.