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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
HWM
276
Hemington Wealth Management
Virginia
$3K -$87 -7 -3%
Bessemer Group
277
Bessemer Group
New Jersey
$3K +$2.56K +207 New
BTI
278
Blue Trust Inc
Georgia
$2.71K – – –
AIM
279
Anchor Investment Management
South Carolina
$2.63K – – –
BFS
280
Burkett Financial Services
South Carolina
$2.63K – – –
GCM
281
Gables Capital Management
Florida
$2.63K – – –
GWSA
282
Global Wealth Strategies & Associates
Colorado
$2.63K – – –
SGK
283
Steigerwald Gordon & Koch
Virginia
$2.58K +$2.42K +196 New
AF
284
Advisornet Financial
Minnesota
$2.37K – – –
AWM
285
AllSquare Wealth Management
New York
$2.04K – – –
MPWT
286
MassMutual Private Wealth & Trust
Connecticut
$2.02K – – –
MPW
287
MASECO Private Wealth
$1.79K – – –
LFG
288
Larson Financial Group
Missouri
$1.71K +$730 +59 +83%
AGWCA
289
Annis Gardner Whiting Capital Advisors
Florida
$1.69K – – –
TPBG
290
Turning Point Benefit Group
Maryland
$1.68K +$1.58K +128 New
CA
291
CoreCap Advisors
Michigan
$1.63K – – –
BWAM
292
Boyd Watterson Asset Management
Ohio
$1.62K – – –
TWM
293
Tripletail Wealth Management
Florida
$1.38K +$1.3K +105 New
KFP
294
Kerr Financial Planning
California
$1.35K +$1.67K +135 New
CFO
295
CVA Family Office
Colorado
$1.32K – – –
NSIM
296
North Star Investment Management
Illinois
$1.32K – – –
GBT
297
Grove Bank & Trust
Florida
$1.21K – – –
FMII
298
Farmers & Merchants Investments Inc
Nebraska
$1.08K – – –
IWP
299
IAG Wealth Partners
Wisconsin
$1.05K – – –
CAL
300
Capital Advisors Ltd
Ohio
$1K – – –
10 11
12
13 14

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.