MF
SBXD

Magnetar Financial’s SilverBox Corp IV SBXD Stock Holding History

Magnetar Financial’s Portfolio SBXD Stock Details SBXD Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$5.63M Hold
520,823
– – 0.05% 251
2026
Q1 		$5.58M Hold
520,823
– – 0.06% 209
2025
Q4 		$5.51M Hold
520,823
– – 0.05% 175
2025
Q3 		$5.45M Sell
520,823
-26,988
-5% -$286K 0.03% 222
2025
Q2 		$5.89M Buy
+547,811
New +$5.74M 0.03% 216

Other funds holding SBXD

LA
Linden Advisors New York $19.3B AUM 1.47% 1-Year Est. Return
WRBC
W.R. Berkley Corp Greenwich, Connecticut $2.18B AUM 13.58% 1-Year Est. Return
MSU
Mizuho Securities USA New York $6.2B AUM 35.46% 1-Year Est. Return
PAMP
Polar Asset Management Partners Toronto, Ontario, Canada $6.07B AUM 34.81% 1-Year Est. Return
AA
AQR Arbitrage Greenwich, Connecticut $7.02B AUM 31.58% 1-Year Est. Return
WAM
Wolverine Asset Management Chicago, Illinois $11.4B AUM 5.65% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
MI
MMCAP International Grand Cayman, Cayman Islands $1.18B AUM 50.44% 1-Year Est. Return
CA
Crossingbridge Advisors Pleasantville, New York $567M AUM 0.34% 1-Year Est. Return
PMAM
Picton Mahoney Asset Management Toronto, Ontario, Canada $13.5B AUM 51.46% 1-Year Est. Return

Magnetar Financial's SBXD Position: Q2 2026 in Review

Magnetar Financial held its SilverBox Corp IV (SBXD) position steady in Q2 2026 at 520,823 shares worth $5.63M. The position accounts for 0.05% of the portfolio, ranked #251.

Magnetar Financial first reported a position in SBXD in Q2 2025 and has held it in 5 quarters since. The position peaked at $5.89M in Q2 2025. 49 funds tracked by Wall St. Rank hold SBXD as of Q2 2026.

  • Magnetar Financial held 520,823 shares of SilverBox Corp IV worth $5.63M as of Q2 2026.
  • Magnetar Financial left its SilverBox Corp IV share count unchanged in Q2 2026.
  • SilverBox Corp IV made up 0.05% of Magnetar Financial's portfolio in Q2 2026, its #251 holding.
  • Magnetar Financial first reported a position in SilverBox Corp IV in Q2 2025 and has held it in 5 quarters since.
  • Magnetar Financial's SilverBox Corp IV position peaked at $5.89M in Q2 2025.
  • 49 funds tracked by Wall St. Rank held SilverBox Corp IV as of Q2 2026.

Based on Magnetar Financial's 13F filing for Q2 2026, filed 14 Aug 2026.