13F Insight
DOSSIER · 13F Holders · Q1 2026Consumer Cyclical · Wood Household Furniture, (No Upholstered)CyclicalNet sold
MBC

MASTERBRAND INC

357 institutions still hold MASTERBRAND INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 57638P104·Wood Household Furniture, (No Upholstered)·357 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 8.2%
vs prior quarter
13F value held
$922M
49.0% inst. owned
of float
Holders
357
+6 QoQ
filers reporting
Activity
+87 / −61
+928 added · −762 reduced
this quarter
Concentration
17.43%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

357 institutions reported MBC in Q1 2026. BlackRock, Inc. leads at 17.4% of the visible book. +6 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$161M19.4M0.00%Q1 202602
Coliseum Capital Management, LLC
CIK 0001409751
$105M12.7M8.65%Q1 202603
Gates Capital Management, Inc.
CIK 0001312908
$86M10.3M2.35%Q1 202604
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$58M7.0M0.01%Q1 202605
Boston Partners
CIK 0001386060
$56M6.7M0.06%Q1 202606
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119
$48M5.7M0.00%Q1 202607
Pertento Partners LLP
CIK 0001894571
$41M5.0M3.02%Q1 202608
Sixth Street Partners Management Company, L.P.
CIK 0001812095
$41M4.9M5.74%Q1 202609
STATE STREET CORP
CIK 0000093751
$41M4.9M0.00%Q1 202610
FMR LLC
CIK 0000315066
$36M4.3M0.00%Q1 202611
PZENA INVESTMENT MANAGEMENT LLC
CIK 0001027796
$32M3.8M0.10%Q1 202612
ACK Asset Management LLC
CIK 0001510940
$31M3.7M3.84%Q1 202613
COOKE & BIELER LP
CIK 0000024386
$30M3.6M0.34%Q1 202614
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
CIK 0000861177
$26M3.1M0.01%Q1 202615
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$26M3.1M0.00%Q1 202616
GOLDMAN SACHS GROUP INC
CIK 0000886982
$25M3.1M0.00%Q1 202617
Apollo Management Holdings, L.P.
CIK 0001449434
$22M2.6M0.29%Q1 202618
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$21M2.5M0.00%Q1 202619
Vanguard Portfolio Management
CIK 0002100121
$20M2.5M0.00%Q1 202620
Monarch Alternative Capital LP
CIK 0001281084
$17M2.0M1.02%Q1 2026
Page 1 of 18
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