Picton Mahoney Asset Management’s Keystone Acquisition Corp Unit KEYYU Stock Holding History

Picton Mahoney Asset Management’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	$4.02M	Buy	+400,000	New	+$4.01M	0.03%	392

Other funds holding KEYYU

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 27.57% 1-Year Est. Return

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

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

Calamos Advisors Naperville, Illinois $30.1B AUM 30.03% 1-Year Est. Return

ABC Arbitrage Paris, France $926M AUM 45.9% 1-Year Est. Return

Clear Street New York $39.5B AUM 124.03% 1-Year Est. Return

LIM

Longfellow Investment Management Boston, Massachusetts $489M AUM 9.58% 1-Year Est. Return

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Picton Mahoney Asset Management's KEYYU Position: Q2 2026 in Review

Picton Mahoney Asset Management opened a new position in Keystone Acquisition Corp Unit (KEYYU) in Q2 2026: 400,000 shares worth $4.02M. The stake represents 0.03% of the portfolio and ranks #392 among its holdings.

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

Picton Mahoney Asset Management held 400,000 shares of Keystone Acquisition Corp Unit worth $4.02M as of Q2 2026.
Keystone Acquisition Corp Unit was a new Picton Mahoney Asset Management position in Q2 2026.
Keystone Acquisition Corp Unit made up 0.03% of Picton Mahoney Asset Management's portfolio in Q2 2026, its #392 holding.
10 funds tracked by Wall St. Rank held Keystone Acquisition Corp Unit as of Q2 2026.

Based on Picton Mahoney Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.