LMR Partners’s SilverBox Corp IV SBXD Stock Holding History

LMR 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 Q1	$5.35M	Hold	500,000	–	–	0.01%	601
2025 Q4	$5.29M	Hold	500,000	–	–	0.01%	552
2025 Q3	$5.24M	Hold	500,000	–	–	0.02%	503
2025 Q2	$5.48M	Hold	500,000	–	–	0.04%	418
2025 Q1	$5.09M	Hold	500,000	–	–	0.05%	397
2024 Q4	$5.05M	Buy	+500,000	New	+$5.02M	0.04%	383

Other funds holding SBXD

Linden Advisors New York $17.9B AUM 1.72% 1-Year Est. Return

MSU

Mizuho Securities USA New York $6.2B AUM 35.46% 1-Year Est. Return

WRBC

W.R. Berkley Corp Greenwich, Connecticut $1.86B AUM 14.44% 1-Year Est. Return

PAMP

Polar Asset Management Partners Toronto, Ontario, Canada $5.01B AUM 35.27% 1-Year Est. Return

AQR Arbitrage Greenwich, Connecticut $6.09B AUM 27.01% 1-Year Est. Return

WAM

Wolverine Asset Management Chicago, Illinois $10.4B AUM 4.78% 1-Year Est. Return

D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

MMCAP International Grand Cayman, Cayman Islands $1.16B AUM 77.9% 1-Year Est. Return

Crossingbridge Advisors Pleasantville, New York $553M AUM 1.29% 1-Year Est. Return

PMAM

Picton Mahoney Asset Management Toronto, Ontario, Canada $13.5B AUM 50.48% 1-Year Est. Return

LMR Partners's SBXD Position: Q1 2026 in Review

LMR Partners held its SilverBox Corp IV (SBXD) position steady in Q1 2026 at 500,000 shares worth $5.35M. The position accounts for 0.01% of the portfolio, ranked #601.

LMR Partners first reported a position in SBXD in Q4 2024 and has held it in 6 quarters since. The position peaked at $5.48M in Q2 2025. 46 funds tracked by Wall St. Rank hold SBXD as of Q1 2026.

LMR Partners held 500,000 shares of SilverBox Corp IV worth $5.35M as of Q1 2026.
LMR Partners left its SilverBox Corp IV share count unchanged in Q1 2026.
SilverBox Corp IV made up 0.01% of LMR Partners's portfolio in Q1 2026, its #601 holding.
LMR Partners first reported a position in SilverBox Corp IV in Q4 2024 and has held it in 6 quarters since.
LMR Partners's SilverBox Corp IV position peaked at $5.48M in Q2 2025.
46 funds tracked by Wall St. Rank held SilverBox Corp IV as of Q1 2026.

Based on LMR Partners's 13F filing for Q1 2026, filed 15 May 2026.