We are live on ! Find out more
MBC icon

MasterBrand
MBC

336 hedge funds and large institutions have $1.76B invested in MasterBrand in 2025 Q3 according to their latest regulatory filings, with 55 funds opening new positions, 106 increasing their positions, 82 reducing their positions, and 38 closing their positions.

New
Increased
Maintained
Reduced
Closed

643% more call options, than puts

Call options by funds: $52K | Put options by funds: $7K

45% more first-time investments, than exits

New positions opened: 55 | Existing positions closed: 38

40% more funds holding in top 10

Funds holding in top 10: 5 → 7 (+2)

35% more capital invested

Capital invested by funds: $1.31B → $1.76B (+$453M)

29% more repeat investments, than reductions

Existing positions increased: 106 | Existing positions reduced: 82

11.05% more ownership

Funds ownership: 94.56% → 105.61% (+11%)

4% more funds holding

Funds holding: 324 → 336 (+12)

Holders
336
Holders Change
+12
Holders Change %
+3.7%
% of All Funds
4.41%
Holding in Top 10
7
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+40%
% of All Funds
0.09%
New
55
Increased
106
Reduced
82
Closed
38
Calls
$52K
Puts
$7K
Net Calls
+$45K
Net Calls Change
+$3K

Top Buyers

1
DCP
Diameter Capital Partners
New York
+$50.2M
2
CCM
Coliseum Capital Management
Connecticut
+$40.3M
3
AAM
ACK Asset Management
Connecticut
+$28.4M
4
SSP
Sixth Street Partners
Texas
+$24M
5
SCM
Stonehill Capital Management
New York
+$18.3M

Top Sellers

1
Thrivent Financial for Lutherans
Thrivent Financial for Lutherans
Minnesota
-$46.6M
2
Fidelity Investments
Fidelity Investments
Massachusetts
-$26.3M
3
GCM
Gates Capital Management
New York
-$20.4M
4
Millennium Management
Millennium Management
New York
-$5.49M
5
RA
Royce & Associates
New York
-$3.06M
Name Holding Trade Value Shares
Change 		Change in
Stake
Handelsbanken Fonder
126
Handelsbanken Fonder
Sweden
$449K – – –
Two Sigma Advisers
127
Two Sigma Advisers
New York
$443K -$446K -36,100 -52%
Allspring Global Investments
128
Allspring Global Investments
North Carolina
$437K +$18.1K +1,465 +5%
Natixis Advisors
129
Natixis Advisors
Massachusetts
$435K +$78.9K +6,378 +24%
CCM
130
Contrarian Capital Management
Connecticut
$435K +$111K +9,000 +38%
BHCM
131
Brevan Howard Capital Management
Jersey
$432K -$129K -10,462 -24%
COPPSERS
132
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$425K -$3.26K -264 -0.8%
CAM
133
Claret Asset Management
Quebec, Canada
$396K -$39.6K -3,205 -10%
FI
134
Fractal Investments
Connecticut
$386K – – –
OPERF
135
Oregon Public Employees Retirement Fund
Oregon
$376K -$6.18K -500 -2%
WSCM
136
Wellington Shields Capital Management
New York
$375K – – –
KK
137
KLP Kapitalforvaltning
Norway
$375K +$54.4K +4,400 +18%
DFCM
138
Dark Forest Capital Management
Puerto Rico
$366K +$344K +27,822 New
Ensign Peak Advisors
139
Ensign Peak Advisors
Utah
$357K -$291K -23,550 -46%
Susquehanna International Group
140
Susquehanna International Group
Pennsylvania
$350K -$1.77M -143,323 -84%
OAM
141
Oppenheimer Asset Management
New York
$344K -$8.37K -677 -3%
I2I
142
Insight 2811 Inc
Illinois
$342K – – –
PCM
143
Penserra Capital Management
California
$337K – – –
Mariner
144
Mariner
Kansas
$336K +$63.4K +5,131 +25%
ER
145
EVR Research
Virginia
$329K +$309K +25,000 New
ProShare Advisors
146
ProShare Advisors
Maryland
$315K -$54.7K -4,424 -16%
SGI
147
Summit Global Investments
Utah
$315K -$375K -30,352 -56%
VOYA Investment Management
148
VOYA Investment Management
Georgia
$306K -$142K -11,522 -33%
CAPTRUST Financial Advisors
149
CAPTRUST Financial Advisors
North Carolina
$299K +$4.3K +348 +2%
Amundi
150
Amundi
France
$295K +$38.1K +3,082 +16%
4 5
6
7 8

MBC Hedge Fund Activity: Q3 2025 in Review

336 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in MasterBrand (MBC) for Q3 2025, worth a combined $1.76B — up 35% from $1.31B a quarter earlier.

Buyers outnumbered sellers: 55 funds opened new MBC positions and 38 closed out — a net gain of 17 holders — while 106 added to existing stakes and 82 trimmed.

The largest buyer was Diameter Capital Partners, adding an estimated $50.2M. The largest seller was Thrivent Financial for Lutherans, cutting an estimated $46.6M.

  • 336 institutional investors held MasterBrand (MBC) as of Q3 2025, up from 324 in Q2 2025.
  • Funds reported $1.76B of MasterBrand stock for Q3 2025, up 35% quarter-over-quarter.
  • 55 funds opened new MasterBrand positions in Q3 2025 and 38 closed out, a net change of +17 holders.
  • The largest MasterBrand buyer in Q3 2025 was Diameter Capital Partners, an estimated $50.2M added.
  • The largest MasterBrand seller in Q3 2025 was Thrivent Financial for Lutherans, an estimated $46.6M sold.

Based on aggregated 13F filings for Q3 2025.