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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
GC
301
Grange Capital
Oregon
$1.32M -$338K -3,161 -16%
Luther King Capital Management (LKCM)
302
Luther King Capital Management (LKCM)
Texas
$1.3M +$252K +2,359 +18%
Ensign Peak Advisors
303
Ensign Peak Advisors
Utah
$1.3M -$3.26M -30,543 -66%
RIM
304
Rakuten Investment Management
Japan
$1.29M +$199K +1,866 +13%
Pathstone Holdings
305
Pathstone Holdings
New Jersey
$1.28M +$141K +1,319 +9%
NIM
306
NEOS Investment Management
Connecticut
$1.26M +$47.3K +443 +3%
BCIM
307
British Columbia Investment Management
British Columbia, Canada
$1.25M -$464K -4,341 -22%
YCM
308
Yousif Capital Management
Michigan
$1.24M +$21.7K +203 +1%
N
309
Numerai
California
$1.24M +$1.6M +15,015 New
SM
310
Soapstone Management
Maryland
$1.23M
P
311
&Partners
Tennessee
$1.23M +$51K +478 +3%
SLAM
312
Swiss Life Asset Management
$1.21M +$444K +4,160 +40%
National Pension Service
313
National Pension Service
South Korea
$1.19M -$672K -6,294 -30%
SC
314
Shay Capital
New York
$1.19M +$1.54M +14,400 New
NAM
315
Nissay Asset Management
Japan
$1.17M -$24.1K -226 -2%
HW
316
Hancock Whitney
Mississippi
$1.17M -$22.9K -214 -1%
CCP
317
Cunning Capital Partners
North Carolina
$1.15M
GCP
318
GSA Capital Partners
United Kingdom
$1.15M +$193K +1,808 +15%
State of Tennessee, Department of Treasury
319
State of Tennessee, Department of Treasury
Tennessee
$1.14M
STA
320
Summit Trail Advisors
New York
$1.12M +$424K +3,975 +41%
CLA
321
Carnegie Lake Advisors
New Jersey
$1.12M
William Blair & Company
322
William Blair & Company
Illinois
$1.11M +$1.44M +13,450 New
SMDAM
323
Sumitomo Mitsui DS Asset Management
Japan
$1.1M
Nordea Investment Management
324
Nordea Investment Management
Sweden
$1.09M +$123K +1,155 +9%
P
325
PensionDanmark
Denmark
$1.07M +$343K +3,216 +33%