We are live on ! Find out more
BLDR icon

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
Natixis Advisors
251
Natixis Advisors
Massachusetts
$1.88M -$691K -6,471 -22%
Mirae Asset Global Investments
252
Mirae Asset Global Investments
South Korea
$1.88M +$465K +4,355 +24%
IC
253
Inkwell Capital
Florida
$1.86M -$12.8K -120 -0.5%
RWM
254
Ritholtz Wealth Management
New York
$1.86M -$155K -1,455 -6%
SWP
255
Stratos Wealth Partners
Ohio
$1.84M -$9.72K -91 -0.4%
LAM
256
LECAP Asset Management
United Kingdom
$1.84M +$2.38M +22,293 New
LOAMS
257
Lombard Odier Asset Management (Switzerland)
Switzerland
$1.83M -$822K -7,700 -26%
KIA
258
KCM Investment Advisors
California
$1.82M -$37.4K -350 -2%
SAM
259
SEB Asset Management
$1.8M +$2.33M +21,832 New
VOYA Investment Management
260
VOYA Investment Management
Georgia
$1.79M -$3.84K -36 -0.2%
Swedbank
261
Swedbank
Sweden
$1.78M -$4.01M -37,561 -63%
Janney Montgomery Scott
262
Janney Montgomery Scott
Pennsylvania
$1.78M +$1.61M +15,092 +232%
EP
263
Edgestream Partners
New Jersey
$1.75M +$1.88M +17,639 +485%
II
264
Inspire Investing
Idaho
$1.75M +$790K +7,397 +54%
OAM
265
OP Asset Management
$1.71M +$922K +8,629 +71%
Baird Financial Group
266
Baird Financial Group
Wisconsin
$1.69M -$281K -2,629 -11%
AssetMark Inc
267
AssetMark Inc
California
$1.67M -$61.2M -572,885 -97%
CIA
268
Capital Investment Advisors
Georgia
$1.67M +$1.17M +10,925 +117%
ProShare Advisors
269
ProShare Advisors
Maryland
$1.66M -$452K -4,234 -17%
AB
270
Amalgamated Bank
New York
$1.65M -$299K -2,797 -12%
IAM
271
Impala Asset Management
Florida
$1.65M +$2.14M +20,000 New
II
272
IFM Investors
Australia
$1.64M -$226K -2,113 -10%
Simplex Trading
273
Simplex Trading
Illinois
$1.63M +$418K +3,913 +25%
MM
274
Marnell Management
Michigan
$1.63M +$2.11M +19,772 New
MCM
275
Monimus Capital Management
New Jersey
$1.62M +$2.1M +19,672 New