Magnetar Financial’s Keystone Acquisition Corp KEYY Stock Holding History

Magnetar Financial’s Portfolio KEYY Stock Details KEYY Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q3	$19.9M	Buy	+2,000,000	New	+$19.8M	0.19%	63

Other funds holding KEYY

Healthcare of Ontario Pension Plan (HOOPP) Trust Fund Toronto, Ontario, Canada $64.4B AUM 36.06% 1-Year Est. Return

Wolverine Asset Management Chicago, Illinois $14.9B AUM 3.61% 1-Year Est. Return

Centiva Capital New York $9.07B AUM 23.43% 1-Year Est. Return

Verition Fund Management Greenwich, Connecticut $18B AUM 27.48% 1-Year Est. Return

First Trust Capital Management Chicago, Illinois $2.08B AUM 59.2% 1-Year Est. Return

Hudson Bay Capital Management Stamford, Connecticut $33B AUM 30.04% 1-Year Est. Return

BNP Paribas Financial Markets Paris, France $294B AUM 47.59% 1-Year Est. Return

Picton Mahoney Asset Management Toronto, Ontario, Canada $14.8B AUM 38.11% 1-Year Est. Return

Periscope Capital Toronto, Ontario, Canada $990M AUM 4.73% 1-Year Est. Return

Shaolin Capital Management Miami, Florida $2.42B AUM 0.61% 1-Year Est. Return

Magnetar Financial's KEYY Position: Q3 2026 in Review

Magnetar Financial opened a new position in Keystone Acquisition Corp (KEYY) in Q3 2026: 2,000,000 shares worth $19.9M. The stake represents 0.19% of the portfolio and ranks #63 among its holdings.

18 funds tracked by Wall St. Rank hold KEYY as of Q3 2026.

Magnetar Financial held 2,000,000 shares of Keystone Acquisition Corp worth $19.9M as of Q3 2026.
Keystone Acquisition Corp was a new Magnetar Financial position in Q3 2026.
Keystone Acquisition Corp made up 0.19% of Magnetar Financial's portfolio in Q3 2026, its #63 holding.
18 funds tracked by Wall St. Rank held Keystone Acquisition Corp as of Q3 2026.

Based on Magnetar Financial's 13F filing for Q3 2026, filed 13 Nov 2026.