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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
Thrivent Financial for Lutherans
26
Thrivent Financial for Lutherans
Minnesota
$12.7M -$46.6M -3,769,021 -80%
BCM
27
Bridgeway Capital Management
Texas
$12.7M -$474K -38,334 -4%
AA
28
Ancora Advisors
Ohio
$11.8M +$1.88M +152,333 +21%
Bank of New York Mellon
29
Bank of New York Mellon
New York
$11.4M -$430K -34,748 -4%
JP Morgan Chase
30
JP Morgan Chase
New York
$9.15M +$6.7M +541,748 +353%
Invesco
31
Invesco
Georgia
$8.6M -$40.4K -3,271 -0.5%
Pictet Asset Management
32
Pictet Asset Management
Switzerland
$8.31M +$1.65M +133,404 +27%
Principal Financial Group
33
Principal Financial Group
Iowa
$8.06M -$203K -16,379 -3%
PCMI
34
Paradigm Capital Management Inc
New York
$7.64M +$7.17M +580,000 New
Russell Investments Group
35
Russell Investments Group
United Kingdom
$7.59M +$218K +17,630 +3%
EF
36
Empowered Funds
Pennsylvania
$7.46M +$144K +11,666 +2%
UBS Group
37
UBS Group
Switzerland
$7.14M +$3.95M +319,853 +144%
Public Sector Pension Investment Board (PSP Investments)
38
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$6.51M +$761K +61,527 +14%
Balyasny Asset Management
39
Balyasny Asset Management
Illinois
$6.32M +$5.51M +445,589 +1,310%
Victory Capital Management
40
Victory Capital Management
Texas
$6.16M -$411K -33,215 -7%
RA
41
Royce & Associates
New York
$5.64M -$3.06M -247,316 -37%
Bank of America
42
Bank of America
North Carolina
$5.41M +$408K +32,974 +9%
PCM
43
Peregrine Capital Management
Minnesota
$5.39M +$5.06M +409,260 New
American Century Companies
44
American Century Companies
Missouri
$5.29M +$782K +63,272 +19%
RC
45
RBF Capital
California
$5.14M +$4.83M +390,382 New
RhumbLine Advisers
46
RhumbLine Advisers
Massachusetts
$5.04M -$60.4K -4,885 -1%
WAM
47
Weiss Asset Management
Massachusetts
$4.75M +$4.46M +360,320 New
WP
48
Woodline Partners
California
$4.68M +$4.39M +355,350 New
Prudential Financial
49
Prudential Financial
New Jersey
$4.52M -$884K -71,500 -17%
Allianz Asset Management
50
Allianz Asset Management
Germany
$4.52M +$671K +54,255 +19%
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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.