MF
JACS

Magnetar Financial’s Jackson Acquisition Co II JACS Stock Holding History

Magnetar Financial’s Portfolio JACS Stock Details JACS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$6.33M Hold
600,000
– – 0.06% 197
2025
Q4 		$6.25M Hold
600,000
– – 0.06% 165
2025
Q3 		$6.23M Hold
600,000
– – 0.04% 196
2025
Q2 		$6.18M Buy
+600,000
New +$6.11M 0.03% 212

Other funds holding JACS

Hudson Bay Capital Management
Hudson Bay Capital Management Stamford, Connecticut $29B AUM 30.2% 1-Year Est. Return
MC
Meteora Capital Boca Raton, Florida $1.36B AUM 21.19% 1-Year Est. Return
GCL
Glazer Capital LLC New York $4.71B AUM 81.93% 1-Year Est. Return
WCMNY
Westchester Capital Management (New York) Valhalla, New York $2.21B AUM 26.02% 1-Year Est. Return
AA
AQR Arbitrage Greenwich, Connecticut $6.09B AUM 27.01% 1-Year Est. Return
LA
Linden Advisors New York $17.9B AUM 1.72% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
WAM
Wolverine Asset Management Chicago, Illinois $10.4B AUM 4.78% 1-Year Est. Return
PAMP
Polar Asset Management Partners Toronto, Ontario, Canada $5.01B AUM 35.27% 1-Year Est. Return
MSU
Mizuho Securities USA New York $6.2B AUM 35.46% 1-Year Est. Return

Magnetar Financial's JACS Position: Q1 2026 in Review

Magnetar Financial held its Jackson Acquisition Co II (JACS) position steady in Q1 2026 at 600,000 shares worth $6.33M. The position accounts for 0.06% of the portfolio, ranked #197.

Magnetar Financial first reported a position in JACS in Q2 2025 and has held it in 4 quarters since. 47 funds tracked by Wall St. Rank hold JACS as of Q1 2026.

  • Magnetar Financial held 600,000 shares of Jackson Acquisition Co II worth $6.33M as of Q1 2026.
  • Magnetar Financial left its Jackson Acquisition Co II share count unchanged in Q1 2026.
  • Jackson Acquisition Co II made up 0.06% of Magnetar Financial's portfolio in Q1 2026, its #197 holding.
  • Magnetar Financial first reported a position in Jackson Acquisition Co II in Q2 2025 and has held it in 4 quarters since.
  • 47 funds tracked by Wall St. Rank held Jackson Acquisition Co II as of Q1 2026.

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