DCP
MBC icon

Diameter Capital Partners’s MasterBrand MBC Stock Holding History

Diameter Capital Partners’s Portfolio MBC Stock Details MBC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$49.2M Buy
4,779,445
+3,233,874
+209% +$27.6M 3.97% 5
2026
Q1 		$12.8M Sell
1,545,571
-4,464,839
-74% -$48.3M 1.2% 20
2025
Q4 		$66.4M Buy
6,010,410
+950,000
+19% +$11.1M 6.06% 2
2025
Q3 		$66.6M Buy
5,060,410
+4,060,410
+406% +$50.2M 4.11% 4
2025
Q2 		$10.9M Buy
+1,000,000
New +$11.1M 1.25% 15

Other funds holding MBC

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Pzena Investment Management
Pzena Investment Management New York $34.1B AUM 23.81% 1-Year Est. Return
CCM
Coliseum Capital Management Rowayton, Connecticut $1.16B AUM 23.26% 1-Year Est. Return
GCM
Gates Capital Management New York $4.16B AUM 21% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
RCM
Redwood Capital Management New York $927M AUM 153.64% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
PP
Pertento Partners London, United Kingdom $1.86B AUM 53.86% 1-Year Est. Return

Diameter Capital Partners's MBC Position: Q2 2026 in Review

Diameter Capital Partners increased its MasterBrand (MBC) stake by 209% in Q2 2026, buying an estimated $27.6M and bringing the position to 4,779,445 shares worth $49.2M. The position accounts for 3.97% of the portfolio, ranked #5.

Diameter Capital Partners first reported a position in MBC in Q2 2025 and has held it in 5 quarters since. The position peaked at $66.6M in Q3 2025. 347 funds tracked by Wall St. Rank hold MBC as of Q2 2026.

  • Diameter Capital Partners held 4,779,445 shares of MasterBrand worth $49.2M as of Q2 2026.
  • Diameter Capital Partners bought 3,233,874 MasterBrand shares in Q2 2026, an estimated $27.6M.
  • MasterBrand made up 3.97% of Diameter Capital Partners's portfolio in Q2 2026, its #5 holding.
  • Diameter Capital Partners first reported a position in MasterBrand in Q2 2025 and has held it in 5 quarters since.
  • Diameter Capital Partners's MasterBrand position peaked at $66.6M in Q3 2025.
  • 347 funds tracked by Wall St. Rank held MasterBrand as of Q2 2026.

Based on Diameter Capital Partners's 13F filing for Q2 2026, filed 14 Aug 2026.