Security key
57638P104
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 154,912,397
- Total 13F value
- $1,287,698,846
- Share change
- +7,938,364
- SEC-reported price per share
- $8.31
- Number of holders
- 335
- Value change
- +$61,215,205
- Number of buys
- 142
- Number of sells
- 137
- Shares outstanding
- 204,393,107
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
335
Top holders
10
MBC full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
Previous quarter: Q3 2025
MasterBrand, Inc. SEC filings
MasterBrand, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 57638P104
Recent filing periods:
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
31 Mar 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%
VANGUARD CAPITAL MANAGEMENT LLC
5.2%
Boston Partners
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 |
13F
13D/G
Company
|
9.9%
from 13D/G
|
$118,929,659
10,772,614 shares
|
— | 31 Dec 2025 |
| 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 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
Vanguard Capital Management
|
5.2%
|
$55,723,760
6,705,627 shares
|
$0 | 31 Mar 2026 |
| Boston Partners |
13F
13D/G
Company
|
5.2%
from 13D/G
|
$96,485,865
8,696,649 shares
|
— | 31 Dec 2025 |
| Kurt Wanninger |
3/4/5
EVP & Chief Operations Officer
|
0.12%
|
$2,657,685
251,199 shares
|
— | 16 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 Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
335
Shares
154,912,397
Rows available
335
| 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 Q1 2026 vs Q3 2025 Across Filers
Q3 2025 holders
334
Q1 2026 holders
335
Holder diff
1
| Investor | Q3 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q3 2025 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend