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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

more call options, than puts

Call options by funds: $ | Put options by funds: $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more ownership

Funds ownership:

more funds holding in top 10

Funds holding in top 10:

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
Holders Change %
% of All Funds
Holding in Top 10
13
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$178M
Puts
$111M
Net Calls
Net Calls Change

Top Sellers

1 -$236M
2 -$180M
3 -$175M
4
Citadel Advisors
Citadel Advisors
Florida
-$79.4M
5
AssetMark Inc
AssetMark Inc
California
-$61.2M
Name Holding Trade Value Shares
Change
Change in
Stake
CNB
226
Czech National Bank
Czech Republic
$2.48M
ASRS
227
Arizona State Retirement System
Arizona
$2.47M
CF
228
Covea Finance
France
$2.47M
KBC Group
229
KBC Group
Belgium
$2.46M
DnB Asset Management
230
DnB Asset Management
Norway
$2.41M
TD Asset Management
231
TD Asset Management
Ontario, Canada
$2.4M
VT
232
Vise Technologies
New York
$2.38M
NYLIM
233
New York Life Investment Management
New York
$2.36M
HighTower Advisors
234
HighTower Advisors
Illinois
$2.27M
PC
235
Pecaut & Co
Iowa
$2.21M
CIBC Asset Management
236
CIBC Asset Management
Ontario, Canada
$2.2M
HFS
237
Hantz Financial Services
Michigan
$2.15M
National Bank of Canada
238
National Bank of Canada
Quebec, Canada
$2.14M
COPPSERS
239
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$2.12M
DB
240
Danske Bank
Denmark
$2.08M
BBVA
241
Banco Bilbao Vizcaya Argentaria
Spain
$2.08M
BIM
242
Bridges Investment Management
Nebraska
$2.05M
IVP
243
Intrinsic Value Partners
Arizona
$2.04M
Group One Trading
244
Group One Trading
Illinois
$2.02M
APG Asset Management
245
APG Asset Management
Netherlands
$2.02M
CCIA
246
Campbell & Co Investment Adviser
Maryland
$1.97M
Retirement Systems of Alabama
247
Retirement Systems of Alabama
Alabama
$1.93M
KFA
248
Kelleher Financial Advisors
New York
$1.9M
MF
249
Magnetar Financial
Illinois
$1.89M
Jones Financial Companies
250
Jones Financial Companies
Missouri
$1.88M