MASTERBRAND INC

Ticker: MBC CUSIP: 57638P104 Class: COMMON STOCK

Diameter Capital Partners LP's Holding History (CIK: 0001727012)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 6,010,410 Value ($000) $66,355 Avg Close $11.71 Range $9.33 - $13.61

Q3 2025

Shares 5,060,410 Value ($000) $66,646 Avg Close $12.36 Range $10.76 - $14.22

Q2 2025

Shares 1,000,000 Value ($000) $10,930 Avg Close $11.07 Range $9.63 - $13.52

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	6,010,410	$66,355	$11.71	$9.33 - $13.61
Q3 2025	5,060,410	$66,646	$12.36	$10.76 - $14.22
Q2 2025	1,000,000	$10,930	$11.07	$9.63 - $13.52