LMR Partners’s Keystone Acquisition Corp Unit KEYYU Stock Holding History

LMR Partners’s Portfolio KEYYU Stock Details KEYYU Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$13.1M	Buy	+1,300,000	New	+$13M	0.05%	337

Other funds holding KEYYU

Magnetar Financial Evanston, Illinois $11B AUM 3.37% 1-Year Est. Return

AQR Arbitrage Greenwich, Connecticut $7.02B AUM 31.58% 1-Year Est. Return

Healthcare of Ontario Pension Plan (HOOPP) Trust Fund Toronto, Ontario, Canada $71.2B AUM 48.86% 1-Year Est. Return

AIMCA

Alberta Investment Management Corp (AIMCo) Edmonton, Alberta, Canada $17.9B AUM 27.56% 1-Year Est. Return

HIM

HGC Investment Management Toronto, Ontario, Canada $507M AUM 6.15% 1-Year Est. Return

FBCM

Fort Baker Capital Management Larkspur, California $1.37B AUM 26.91% 1-Year Est. Return

BNP Paribas Financial Markets Paris, France $289B AUM 60.46% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

RCM

Radcliffe Capital Management Bala Cynwyd, Pennsylvania $1.32B AUM 1.82% 1-Year Est. Return

Centiva Capital New York $11.5B AUM 31.97% 1-Year Est. Return

LMR Partners's KEYYU Position: Q2 2026 in Review

LMR Partners opened a new position in Keystone Acquisition Corp Unit (KEYYU) in Q2 2026: 1,300,000 shares worth $13.1M. The stake represents 0.05% of the portfolio and ranks #337 among its holdings.

29 funds tracked by Wall St. Rank hold KEYYU as of Q2 2026.

LMR Partners held 1,300,000 shares of Keystone Acquisition Corp Unit worth $13.1M as of Q2 2026.
Keystone Acquisition Corp Unit was a new LMR Partners position in Q2 2026.
Keystone Acquisition Corp Unit made up 0.05% of LMR Partners's portfolio in Q2 2026, its #337 holding.
29 funds tracked by Wall St. Rank held Keystone Acquisition Corp Unit as of Q2 2026.

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