UOC
SBXD

UBS O'Connor’s SilverBox Corp IV SBXD Stock Holding History

UBS O'Connor’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
2025
Q4 		$506K Hold
47,830
– – 0.01% 187
2025
Q3 		$501K Sell
47,830
-2,170
-4% -$23K 0.02% 207
2025
Q2 		$548K Sell
50,000
-192,175
-79% -$2.01M 0.01% 269
2025
Q1 		$2.46M Hold
242,175
– – 0.06% 107
2024
Q4 		$2.45M Buy
+242,175
New +$2.43M 0.06% 137

Other funds holding SBXD

LA
Linden Advisors New York $19.3B AUM 1.47% 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
WRBC
W.R. Berkley Corp Greenwich, Connecticut $2.18B AUM 13.58% 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
WAM
Wolverine Asset Management Chicago, Illinois $11.4B AUM 5.65% 1-Year Est. Return
PMAM
Picton Mahoney Asset Management Toronto, Ontario, Canada $13.5B AUM 51.46% 1-Year Est. Return
GL
Governors Lane New York $1.2B AUM 26.21% 1-Year Est. Return

UBS O'Connor's SBXD Position: Q4 2025 in Review

UBS O'Connor held its SilverBox Corp IV (SBXD) position steady in Q4 2025 at 47,830 shares worth $506K. The position accounts for 0.01% of the portfolio, ranked #187.

UBS O'Connor first reported a position in SBXD in Q4 2024 and has held it in 5 quarters since. The position peaked at $2.46M in Q1 2025. 46 funds tracked by Wall St. Rank hold SBXD as of Q4 2025.

  • UBS O'Connor held 47,830 shares of SilverBox Corp IV worth $506K as of Q4 2025.
  • UBS O'Connor left its SilverBox Corp IV share count unchanged in Q4 2025.
  • SilverBox Corp IV made up 0.01% of UBS O'Connor's portfolio in Q4 2025, its #187 holding.
  • UBS O'Connor first reported a position in SilverBox Corp IV in Q4 2024 and has held it in 5 quarters since.
  • UBS O'Connor's SilverBox Corp IV position peaked at $2.46M in Q1 2025.
  • 46 funds tracked by Wall St. Rank held SilverBox Corp IV as of Q4 2025.

Based on UBS O'Connor's 13F filing for Q4 2025, filed 13 Feb 2026.