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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

61% more call options, than puts

Call options by funds: $178M | Put options by funds: $111M

15% more repeat investments, than reductions

Existing positions increased: 274 | Existing positions reduced: 239

0.85% more ownership

Funds ownership: 95.09%95.93% (+0.85%)

0% more funds holding in top 10

Funds holding in top 10: 1313 (0)

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
-46
Holders Change %
-6.01%
% of All Funds
8.86%
Holding in Top 10
13
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.16%
New
104
Increased
274
Reduced
239
Closed
135
Calls
$178M
Puts
$111M
Net Calls
+$67.3M
Net Calls Change
+$65M
Name Holding Trade Value Shares
Change
Change in
Stake
FCM
26
Frontier Capital Management
Massachusetts
$70.8M +$30.4M +284,322 +49%
Mirae Asset Global ETFs Holdings
27
Mirae Asset Global ETFs Holdings
Hong Kong
$67.7M +$3.12M +29,252 +4%
EWM
28
Evercore Wealth Management
New York
$66.1M -$1.78M -16,700 -2%
Capital World Investors
29
Capital World Investors
California
$64.2M +$1.19M +11,114 +1%
Marshall Wace
30
Marshall Wace
United Kingdom
$63.9M +$66.2M +620,264 +398%
UBS Group
31
UBS Group
Switzerland
$61.8M +$25.1M +234,816 +45%
LC
32
Loews Corp
New York
$60.9M +$49.1M +460,000 +164%
Janus Henderson Group
33
Janus Henderson Group
United Kingdom
$56.7M -$4.71M -44,111 -6%
Fiera Capital (Canada)
34
Fiera Capital (Canada)
Quebec, Canada
$56.6M +$3.53M +33,050 +5%
ClearBridge Investments
35
ClearBridge Investments
New York
$55.1M +$2.73M +25,567 +4%
VFT
36
Vanguard Fiduciary Trust
Pennsylvania
$50.9M +$66M +618,019 New
Point72 Asset Management
37
Point72 Asset Management
Connecticut
$47.1M +$30.4M +284,739 +99%
Millennium Management
38
Millennium Management
New York
$47M +$33.6M +314,899 +123%
Neuberger Berman Group
39
Neuberger Berman Group
New York
$46.7M +$35.3M +330,813 +140%
Holocene Advisors
40
Holocene Advisors
New York
$46.3M +$56.6M +529,566 +1,590%
Amundi
41
Amundi
France
$46.2M +$12.9M +121,086 +28%
Royal Bank of Canada
42
Royal Bank of Canada
Ontario, Canada
$45.4M +$19.3M +180,597 +49%
Bank of New York Mellon
43
Bank of New York Mellon
New York
$44.2M -$15.3M -143,330 -21%
Citadel Advisors
44
Citadel Advisors
Florida
$44.2M -$79.4M -743,719 -58%
Bessemer Group
45
Bessemer Group
New Jersey
$43.5M +$2.89M +27,037 +5%
RR
46
Robotti Robert
$43.1M +$10.3M +96,606 +23%
UBS AM
47
UBS AM
Illinois
$42.4M -$293K -2,745 -0.5%
SC
48
Samlyn Capital
New York
$42.1M +$18.1M +169,689 +50%
LFCM
49
Long Focus Capital Management
Puerto Rico
$39.4M +$15.4M +144,000 +43%
Barclays
50
Barclays
United Kingdom
$38M +$16.7M +156,628 +51%