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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
8.85%
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
BA
451
Bridgewater Associates
Connecticut
$334K +$434K +4,062 New
MCM
452
MAI Capital Management
Ohio
$332K -$1.6K -15 -0.4%
NA
453
NewEdge Advisors
Louisiana
$330K -$61.8K -579 -13%
FG
454
Formula Growth
Quebec, Canada
$329K
GF
455
Gabelli Funds
New York
$329K +$171K +1,600 +67%
GVAG
456
Great Valley Advisor Group
Delaware
$327K +$39.4K +369 +10%
PPG
457
Peak Planning Group
Colorado
$327K
WWA
458
Wisconsin Wealth Advisors
Wisconsin
$323K
AV
459
Alamea Verwaltungs
New Jersey
$321K +$92.3K +864 +28%
OWP
460
Obermeyer Wealth Partners
Colorado
$316K
YDMI
461
Y.D. More Investments
Israel
$314K -$5.23K -49 -1%
MM
462
MQS Management
New York
$314K -$98.8K -925 -20%
Wealth Enhancement Advisory Services
463
Wealth Enhancement Advisory Services
Minnesota
$314K -$888K -8,316 -68%
MG
464
Marex Group
$313K -$85.9K -804 -17%
BW
465
Blalock Williams
Alabama
$312K +$11.3K +106 +3%
PEAK6
466
PEAK6
Illinois
$311K -$830K -7,775 -67%
OP
467
Oslo Pensjonsforsikring
$308K +$400K +3,741 New
RMC
468
Ring Mountain Capital
California
$300K -$7.47K -70 -2%
SCM
469
Sterling Capital Management
North Carolina
$300K -$298K -2,792 -43%
NICM
470
Neo Ivy Capital Management
New York
$296K +$384K +3,593 New
CFB
471
Cullen/Frost Bankers
Texas
$293K -$4.29M -40,134 -92%
Jacobs Levy Equity Management
472
Jacobs Levy Equity Management
New Jersey
$292K -$3.95M -36,968 -91%
Lido Advisors
473
Lido Advisors
California
$292K -$506K -4,736 -57%
NMIMC
474
Northwestern Mutual Investment Management Company
Wisconsin
$291K +$427 +4 +0.1%
MWA
475
Medallion Wealth Advisors
Connecticut
$288K