Whitebox Advisors’s Keystone Acquisition Corp Unit KEYYU Stock Holding History

Whitebox Advisors’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	$3.51M	Buy	+350,000	New	+$3.51M	0.05%	188

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

LMR Partners London, United Kingdom $26.8B AUM 68.38% 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

Whitebox Advisors's KEYYU Position: Q2 2026 in Review

Whitebox Advisors opened a new position in Keystone Acquisition Corp Unit (KEYYU) in Q2 2026: 350,000 shares worth $3.51M. The stake represents 0.05% of the portfolio and ranks #188 among its holdings.

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

Whitebox Advisors held 350,000 shares of Keystone Acquisition Corp Unit worth $3.51M as of Q2 2026.
Keystone Acquisition Corp Unit was a new Whitebox Advisors position in Q2 2026.
Keystone Acquisition Corp Unit made up 0.05% of Whitebox Advisors's portfolio in Q2 2026, its #188 holding.
29 funds tracked by Wall St. Rank held Keystone Acquisition Corp Unit as of Q2 2026.

Based on Whitebox Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.