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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
PWMG
326
Prestige Wealth Management Group
New Jersey
$238 – – –
AWM
327
Abound Wealth Management
Tennessee
$132 – – –
SIC
328
SJS Investment Consulting
Ohio
$132 – – –
TPCW
329
TD Private Client Wealth
New York
$119 – – –
DPW
330
DiNuzzo Private Wealth
Pennsylvania
$102 -$37 -3 -27%
SC
331
SouthState Corp
Florida
$40 – – –
SS
332
Sunbelt Securities
Texas
$40 +$37 +3 New
HIA
333
HFM Investment Advisors
New Jersey
$26 – – –
SWA
334
SOA Wealth Advisors
New York
$13 – – –
EP
335
Essential Partners
California
$13 +$12 +1 New
CA
336
CSM Advisors
Pennsylvania
– -$2.79M -255,471 Closed
Voloridge Investment Management
337
Voloridge Investment Management
Florida
– -$1.68M -153,751 Closed
XT
338
XTX Topco
Cayman Islands
– -$1.36M -124,298 Closed
Jane Street
339
Jane Street
New York
– -$1.28M -117,017 Closed
Axa
340
Axa
France
– -$1.15M -105,527 Closed
HF
341
HRT Financial
New York
– -$939K -85,950 Closed
VI
342
Versor Investments
New York
– -$916K -83,800 Closed
Man Group
343
Man Group
United Kingdom
– -$818K -74,865 Closed
SIM
344
SummerHaven Investment Management
Connecticut
– -$611K -55,891 Closed
CCIA
345
Campbell & Co Investment Adviser
Maryland
– -$448K -40,958 Closed
MC
346
Maverick Capital
Texas
– -$440K -40,293 Closed
Qube Research & Technologies (QRT)
347
Qube Research & Technologies (QRT)
United Kingdom
– -$330K -30,179 Closed
LCM
348
Landscape Capital Management
New Jersey
– -$302K -27,673 Closed
EGM
349
Engineers Gate Manager
New York
– -$267K -24,470 Closed
AC
350
Aristeia Capital
Connecticut
– -$227K -20,769 Closed
11 12 13
14
15

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.