Polar Asset Management Partners’s SilverBox Corp IV SBXD Stock Holding History

Polar Asset Management Partners’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	$16.3M	Hold	1,508,005	–	–	0.27%	79
2026 Q1	$16.1M	Buy	1,508,005 +128,005	+9%	+$1.36M	0.32%	55
2025 Q4	$14.6M	Sell	1,380,000 -100,000	-7%	-$1.05M	0.19%	99
2025 Q3	$15.5M	Hold	1,480,000	–	–	0.17%	92
2025 Q2	$16.2M	Sell	1,480,000 -500,000	-25%	-$5.24M	0.25%	60
2025 Q1	$20.1M	Hold	1,980,000	–	–	0.46%	42
2024 Q4	$20M	Buy	+1,980,000	New	+$19.9M	0.23%	84

Other funds holding SBXD

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

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 New York $210B AUM 57.28% 1-Year Est. Return

MMCAP International Grand Cayman, Cayman Islands $1.18B AUM 50.44% 1-Year Est. Return

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

RiverPark Advisors New York $219M AUM 14.91% 1-Year Est. Return

Polar Asset Management Partners's SBXD Position: Q2 2026 in Review

Polar Asset Management Partners held its SilverBox Corp IV (SBXD) position steady in Q2 2026 at 1,508,005 shares worth $16.3M. The position accounts for 0.27% of the portfolio, ranked #79.

Polar Asset Management Partners first reported a position in SBXD in Q4 2024 and has held it in 7 quarters since. The position peaked at $20.1M in Q1 2025. 48 funds tracked by Wall St. Rank hold SBXD as of Q2 2026.

Polar Asset Management Partners held 1,508,005 shares of SilverBox Corp IV worth $16.3M as of Q2 2026.
Polar Asset Management Partners left its SilverBox Corp IV share count unchanged in Q2 2026.
SilverBox Corp IV made up 0.27% of Polar Asset Management Partners's portfolio in Q2 2026, its #79 holding.
Polar Asset Management Partners first reported a position in SilverBox Corp IV in Q4 2024 and has held it in 7 quarters since.
Polar Asset Management Partners's SilverBox Corp IV position peaked at $20.1M in Q1 2025.
48 funds tracked by Wall St. Rank held SilverBox Corp IV as of Q2 2026.

Based on Polar Asset Management Partners's 13F filing for Q2 2026, filed 14 Aug 2026.