MasterBrand, Inc. - Common Stock (MBC)

CUSIP: 57638P104

Q2 2026 13F Holders as of 30 Jun 2026

Holder snapshot 6 signals
Share change
+476,264
SEC-reported price per share
$10.29
Number of holders
91
Value change
+$5,475,207
Number of buys
45
Number of sells
25
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
204,393,107

Security key

57638P104

Report period

Q2 2026

Institutions

91

Top holders

10

Ownership snapshot

Top reported holders of MBC - MasterBrand, Inc. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
30 Jun 2026
13D/G 13F 3/4/5 Lead comparable stake: 15% 13D/G row: BlackRock, Inc. Showing 1-6 of 15 holder rows.

Quick read

BlackRock, Inc. leads the comparable SEC ownership view at 15%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership Top 5
BlackRock, Inc. 15%
Coliseum Capital Management, LLC 9.9%
Gates Capital Management, Inc. 8.2%
PZENA INVESTMENT MANAGEMENT LLC 7.5%
VANGUARD CAPITAL MANAGEMENT LLC 5.2%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
BlackRock, Inc.
13D/G 13F
Company
15%
$233,849,689
19,358,418 shares
$0 31 Mar 2025
Coliseum Capital Management, LLC
13D/G 13F
Company
9.9%
$111,586,501
12,694,710 shares
+$15,276,519 31 Mar 2026
Gates Capital Management, Inc.
13D/G 13F
Gates Capital Management, L.P. · Company
8.2%
$136,656,398
10,376,340 shares
-$21,710,429 30 Sep 2025
PZENA INVESTMENT MANAGEMENT LLC
13D/G 13F
Company
7.5%
$157,740,380
15,329,483 shares
$0 30 Jun 2026
VANGUARD CAPITAL MANAGEMENT LLC
13D/G 13F
Vanguard Capital Management · Company
5.2%
$55,723,760
6,705,627 shares
$0 31 Mar 2026
Boston Partners
13D/G 13F
Company
5.2%
$58,627,612
6,669,808 shares
-$11,086,423 31 Mar 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q2 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
91
Shares
6,224,458
Rows available
91
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q2 2026 vs Q3 2025 Across Filers

Q3 2025 holders
334
Q2 2026 holders
91
Holder diff
-243
Investor Q3 2025 Shares Q2 2026 Shares Share Diff Share Chg % Q3 2025 value Q2 2026 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .