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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
Mirae Asset Global ETFs Holdings
101
Mirae Asset Global ETFs Holdings
Hong Kong
$778K -$131K -10,601 -15%
LSERS
102
Louisiana State Employees Retirement System
Louisiana
$768K -$11.1K -900 -2%
IFU
103
iSAM Funds (UK)
United Kingdom
$733K +$689K +55,689 New
Janus Henderson Group
104
Janus Henderson Group
United Kingdom
$731K – – –
State of Wisconsin Investment Board
105
State of Wisconsin Investment Board
Wisconsin
$706K -$642K -51,905 -49%
State of Tennessee, Department of Treasury
106
State of Tennessee, Department of Treasury
Tennessee
$695K -$238K -19,240 -27%
MCM
107
Moore Capital Management
New York
$692K +$650K +52,574 New
VA
108
Vident Advisory
Georgia
$678K +$637K +51,505 New
CCM
109
Cullen Capital Management
New York
$652K +$142K +11,519 +30%
IIM
110
INTECH Investment Management
Florida
$638K -$69.7K -5,639 -10%
GF
111
Gabelli Funds
New York
$606K – – –
QCM
112
Quantinno Capital Management
New York
$597K +$129K +10,466 +30%
CB
113
Commerce Bank
Missouri
$591K -$4.33K -350 -0.8%
State Board of Administration of Florida Retirement System
114
State Board of Administration of Florida Retirement System
Florida
$587K – – –
CM
115
CastleKnight Management
New York
$539K – – –
LPL Financial
116
LPL Financial
California
$536K +$93.3K +7,542 +23%
YCM
117
Yousif Capital Management
Michigan
$518K -$96.5K -7,802 -17%
HW
118
Hancock Whitney
Mississippi
$511K +$5.75K +465 +1%
AB
119
Amalgamated Bank
New York
$494K +$15.5K +1,250 +3%
ASRS
120
Arizona State Retirement System
Arizona
$494K +$3.09K +250 +0.7%
Envestnet Asset Management
121
Envestnet Asset Management
Illinois
$490K +$5.17K +418 +1%
Nisa Investment Advisors
122
Nisa Investment Advisors
Missouri
$484K +$25.3K +2,049 +6%
TRSOTSOK
123
Teachers Retirement System of the State of Kentucky
Kentucky
$478K -$56.3K -4,551 -11%
Zurich Cantonal Bank
124
Zurich Cantonal Bank
Switzerland
$464K – – –
PFSRSONJ
125
Police & Firemen's Retirement System of New Jersey
New Jersey
$463K +$71.5K +5,781 +20%
3 4
5
6 7

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.