MF
HCMAU

Magnetar Financial’s HCM III Acquisition Corp Units HCMAU Stock Holding History

Magnetar Financial’s Portfolio HCMAU Stock Details HCMAU Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$103 Buy
+10
New +$103 ﹤0.01% 1101
2025
Q4 		– Sell
-1,000,000
Closed -$10.3M – 1298
2025
Q3 		$10.3M Buy
+1,000,000
New +$10.2M 0.06% 110

Other funds holding HCMAU

PAMP
Polar Asset Management Partners Toronto, Ontario, Canada $5.01B AUM 35.02% 1-Year Est. Return
Toronto Dominion Bank
Toronto Dominion Bank Toronto, Ontario, Ontario, Canada $69.7B AUM 40.86% 1-Year Est. Return
JG
Jain Global New York $24.2B AUM 34.82% 1-Year Est. Return
WCA
Waratah Capital Advisors Toronto, Ontario, Canada $2.63B AUM 76.33% 1-Year Est. Return
HF
HRT Financial New York $40.1B AUM 58.22% 1-Year Est. Return
Walleye Capital
Walleye Capital New York $28B AUM 44.22% 1-Year Est. Return
OAC
OMERS Administration Corp Toronto, Ontario, Canada $15.6B AUM 24.73% 1-Year Est. Return
SAMU
SONA Asset Management (US) New York $4.74B AUM 11.18% 1-Year Est. Return
WCMNY
Westchester Capital Management (New York) Valhalla, New York $2.21B AUM 26.02% 1-Year Est. Return
RAM
Readystate Asset Management Chicago, Illinois $2.23B AUM 15.01% 1-Year Est. Return

Magnetar Financial's HCMAU Position: Q1 2026 in Review

Magnetar Financial opened a new position in HCM III Acquisition Corp Units (HCMAU) in Q1 2026: 10 shares worth $103. The stake represents ﹤0.01% of the portfolio and ranks #1101 among its holdings. This is a return to the name: Magnetar Financial previously reported a position in HCMAU as recently as Q3 2025.

Magnetar Financial first reported a position in HCMAU in Q3 2025 and has held it in 2 quarters since. The position peaked at $10.3M in Q3 2025. 14 funds tracked by Wall St. Rank hold HCMAU as of Q1 2026.

  • Magnetar Financial held 10 shares of HCM III Acquisition Corp Units worth $103 as of Q1 2026.
  • HCM III Acquisition Corp Units was a new Magnetar Financial position in Q1 2026.
  • HCM III Acquisition Corp Units made up ﹤0.01% of Magnetar Financial's portfolio in Q1 2026, its #1101 holding.
  • Magnetar Financial first reported a position in HCM III Acquisition Corp Units in Q3 2025 and has held it in 2 quarters since.
  • Magnetar Financial's HCM III Acquisition Corp Units position peaked at $10.3M in Q3 2025.
  • 14 funds tracked by Wall St. Rank held HCM III Acquisition Corp Units as of Q1 2026.

Based on Magnetar Financial's 13F filing for Q1 2026, filed 13 May 2026.