MF
MACI

Magnetar Financial’s Melar Acquisition Corp I MACI Stock Holding History

Magnetar Financial’s Portfolio MACI Stock Details MACI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$4.01M Hold
371,250
– – 0.04% 235
2025
Q4 		$3.95M Hold
371,250
– – 0.04% 232
2025
Q3 		$3.9M Hold
371,250
– – 0.02% 266
2025
Q2 		$3.86M Buy
+371,250
New +$3.85M 0.02% 265

Other funds holding MACI

LP
LMR Partners London, United Kingdom $45.4B AUM 60.68% 1-Year Est. Return
PAMP
Polar Asset Management Partners Toronto, Ontario, Canada $5.01B AUM 35.27% 1-Year Est. Return
FTCM
First Trust Capital Management Chicago, Illinois $1.9B AUM 58.39% 1-Year Est. Return
MSU
Mizuho Securities USA New York $4.24B AUM 23.1% 1-Year Est. Return
WAM
Wolverine Asset Management Chicago, Illinois $10.4B AUM 4.78% 1-Year Est. Return
WRBC
W.R. Berkley Corp Greenwich, Connecticut $1.86B AUM 14.44% 1-Year Est. Return
AA
AQR Arbitrage Greenwich, Connecticut $6.09B AUM 27.01% 1-Year Est. Return
KIM
Karpus Investment Management Pittsford, New York $3.21B AUM 6.83% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
CCC
Cable Car Capital San Francisco, California $289M AUM 26.33% 1-Year Est. Return

Magnetar Financial's MACI Position: Q1 2026 in Review

Magnetar Financial held its Melar Acquisition Corp I (MACI) position steady in Q1 2026 at 371,250 shares worth $4.01M. The position accounts for 0.04% of the portfolio, ranked #235.

Magnetar Financial first reported a position in MACI in Q2 2025 and has held it in 4 quarters since. 37 funds tracked by Wall St. Rank hold MACI as of Q1 2026.

  • Magnetar Financial held 371,250 shares of Melar Acquisition Corp I worth $4.01M as of Q1 2026.
  • Magnetar Financial left its Melar Acquisition Corp I share count unchanged in Q1 2026.
  • Melar Acquisition Corp I made up 0.04% of Magnetar Financial's portfolio in Q1 2026, its #235 holding.
  • Magnetar Financial first reported a position in Melar Acquisition Corp I in Q2 2025 and has held it in 4 quarters since.
  • 37 funds tracked by Wall St. Rank held Melar Acquisition Corp I as of Q1 2026.

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