⌘K

MBC Institutional Ownership & 13F Holders | SmartMoneyDB

MBCMASTERBRAND INC

COMMON STOCK · CUSIP 57638P104

Smart Money Ownership

Of the 9 tracked institutions holding MBC, 3 have a 3-year clone track record — 3 of them beat the S&P. Average holder's clone alpha: +4.8pt. It's a gauge of who owns the name, not just how many.

PRICE T ROWE ASSOCIATES INC /MD/

$3.0M

+3.5pt

Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →

MBC (MASTERBRAND INC) Institutional Ownership Summary

Among the 9 tracked institutional investors we monitor, MBC (MASTERBRAND INC) is held with a combined value of $632.57M across 60,806,560 shares. The largest holder is BlackRock, Inc. with a position worth $324.70M. 5 funds increased their holdings. 4 funds reduced their position.

Total Institutional Value

$632.57M

Total Shares Held

60,806,560

Institutional Holders

This Quarter's Biggest Movers

Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.

Biggest Buyers

BlackRock, Inc.+63% shares~$125.6M FMR LLC+139% shares~$62.0M STATE STREET CORP+68% shares~$34.0M PRICE T ROWE ASSOCIATES INC /MD/+92% shares~$1.4M TWO SIGMA ADVISERS, LP+240% shares~$891.0K

13F Institutional Holders

Sort

RENAISSANCE TECHNOLOGIES LLC

0.01% of book-49.7%

$9.06M

PRICE T ROWE ASSOCIATES INC /MD/

0.00% of book+92.0%

$2.99M

AQR CAPITAL MANAGEMENT LLC

0.00% of book-11.5%

$2.18M

TWO SIGMA ADVISERS, LP

0.00% of book+240.2%

$1.26M

MILLENNIUM MANAGEMENT LLC

0.00% of book-77.4%

$1.10M

#	Fund	Value↓	Shares	Portfolio %	Change
1	BlackRock, Inc.	$324.70M	31,554,598	0.00%	+63.1%
2	FMR LLC	$106.72M	10,370,825	0.00%	+138.9%
3	VANGUARD GROUP INC	$100.23M	9,079,055	0.00%	-0.0%
4	STATE STREET CORP	$84.33M	8,195,786	0.00%	+67.6%
5	RENAISSANCE TECHNOLOGIES LLC	$9.06M	880,781	0.01%	-49.7%
6	PRICE T ROWE ASSOCIATES INC /MD/	$2.99M	290,428	0.00%	+92.0%
7	AQR CAPITAL MANAGEMENT LLC	$2.18M	214,137	0.00%	-11.5%
8	TWO SIGMA ADVISERS, LP	$1.26M	114,300	0.00%	+240.2%
9	MILLENNIUM MANAGEMENT LLC	$1.10M	106,650	0.00%	-77.4%

Activist & Large Holders (13D/13G)

Investor	Ownership	Type	Filed
Coliseum Capital Management, LLC	6.5%	13G/A	2026-08-17
Gates Capital Management, Inc.	6.5%

Frequently Asked Questions

Which institutional investors own the most MBC stock?

As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of MBC with a position worth $324.70M, representing 0.00% of their portfolio. In total, 9 institutional investors hold MBC with a combined value of $632.57M.

What percentage of MBC is owned by institutional investors?

Institutional investors hold $632.57M worth of MBC stock across 9 positions. The largest institutional holder is BlackRock, Inc. with $324.70M in holdings.

What is a 13F filing and why does it matter for MBC?

A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For MBC, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.

Track MBC institutional moves

Get notified when hedge funds change their MBC positions.