Ken Griffin
SBXD

Ken Griffin’s SilverBox Corp IV SBXD Stock Holding History

Ken Griffin’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 		$117K Buy
10,964
+333
+3% +$3.55K ﹤0.01% 11878
2025
Q4 		$112K Sell
10,631
-36,081
-77% -$380K ﹤0.01% 11540
2025
Q3 		$489K Buy
+46,712
New +$494K ﹤0.01% 9195

Other funds holding SBXD

LA
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 35.02% 1-Year Est. Return
AA
AQR Arbitrage Greenwich, Connecticut $6.09B AUM 26.7% 1-Year Est. Return
WAM
Wolverine Asset Management Chicago, Illinois $11.4B AUM 5.66% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
MI
MMCAP International Grand Cayman, Cayman Islands $1.16B AUM 76.63% 1-Year Est. Return
CA
Crossingbridge Advisors Pleasantville, New York $553M AUM 1.32% 1-Year Est. Return
PMAM
Picton Mahoney Asset Management Toronto, Ontario, Canada $13.5B AUM 50.39% 1-Year Est. Return

Ken Griffin's SBXD Position: Q1 2026 in Review

Ken Griffin increased its SilverBox Corp IV (SBXD) stake by 3.1% in Q1 2026, buying an estimated $3.55K and bringing the position to 10,964 shares worth $117K. The position accounts for ﹤0.01% of the portfolio, ranked #11878.

Ken Griffin first reported a position in SBXD in Q3 2025 and has held it in 3 quarters since. The position peaked at $489K in Q3 2025. 46 funds tracked by Wall St. Rank hold SBXD as of Q1 2026.

  • Ken Griffin held 10,964 shares of SilverBox Corp IV worth $117K as of Q1 2026.
  • Ken Griffin bought 333 SilverBox Corp IV shares in Q1 2026, an estimated $3.55K.
  • SilverBox Corp IV made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #11878 holding.
  • Ken Griffin first reported a position in SilverBox Corp IV in Q3 2025 and has held it in 3 quarters since.
  • Ken Griffin's SilverBox Corp IV position peaked at $489K in Q3 2025.
  • 46 funds tracked by Wall St. Rank held SilverBox Corp IV as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.