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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
DekaBank Deutsche Girozentrale
176
DekaBank Deutsche Girozentrale
Germany
$170K – – –
Cetera Investment Advisers
177
Cetera Investment Advisers
Illinois
$167K -$3.14K -254 -2%
FGP
178
Freestone Grove Partners
California
$166K +$156K +12,614 New
SOW
179
State of Wyoming
Wyoming
$166K +$59.8K +4,833 +62%
Mercer Global Advisors
180
Mercer Global Advisors
Colorado
$165K +$9.74K +788 +7%
CIBC Asset Management
181
CIBC Asset Management
Ontario, Canada
$163K – – –
SG Americas Securities
182
SG Americas Securities
New York
$153K +$144K +11,611 New
AIP
183
Ameritas Investment Partners
Nebraska
$140K -$28.2K -2,278 -18%
Cerity Partners
184
Cerity Partners
New York
$136K -$40.7K -3,292 -24%
GIM
185
Glenmede Investment Management
Pennsylvania
$135K +$127K +10,277 New
CL
186
Choreo LLC
Illinois
$133K +$125K +10,131 New
CC
187
Corton Capital
Ontario, Canada
$133K +$125K +10,121 New
X
188
Xponance
Pennsylvania
$132K +$124K +10,014 New
SCM
189
Sterling Capital Management
North Carolina
$132K +$65.6K +5,307 +113%
ETS
190
ESL Trust Services
New York
$119K – – –
TRCT
191
Tower Research Capital (TRC)
New York
$91.3K -$181K -14,663 -68%
GRP
192
Global Retirement Partners
California
$89.8K – – –
HNB
193
Huntington National Bank
Ohio
$83.6K – – –
TCOV
194
Trust Company of Vermont
Vermont
$81K -$841 -68 -1%
CIBC Private Wealth Group
195
CIBC Private Wealth Group
Georgia
$76.5K +$26.6K +2,153 +59%
Jones Financial Companies
196
Jones Financial Companies
Missouri
$76.3K +$14.6K +1,177 +27%
KBC Group
197
KBC Group
Belgium
$76K – – –
SPIA
198
Steward Partners Investment Advisory
New York
$74.7K +$2.08K +168 +3%
Ohio Public Employees Retirement System (OPERS)
199
Ohio Public Employees Retirement System (OPERS)
Ohio
$68.5K +$668 +54 +1%
PFBT
200
Parkside Financial Bank & Trust
Missouri
$68.2K +$10.2K +821 +19%
6 7
8
9 10

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.