Citadel Advisors
ATII

Citadel Advisors’s Archimedes Tech SPAC Partners II Co ATII Stock Holding History

Citadel Advisors’s Portfolio ATII Stock Details ATII Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$108K Buy
+10,377
New +$109K ﹤0.01% 11934

Other funds holding ATII

TCM
Tenor Capital Management New York $6.49B AUM 3.01% 1-Year Est. Return
MF
Magnetar Financial Evanston, Illinois $9.84B AUM 190.64% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
LA
Linden Advisors New York $17.9B AUM 1.72% 1-Year Est. Return
AA
AQR Arbitrage Greenwich, Connecticut $6.09B AUM 27.01% 1-Year Est. Return
WCMNY
Westchester Capital Management (New York) Valhalla, New York $2.21B AUM 26.02% 1-Year Est. Return
LP
LMR Partners London, United Kingdom $45.4B AUM 60.68% 1-Year Est. Return
GCM
Ghisallo Capital Management Boston, Massachusetts $3.63B AUM 30.51% 1-Year Est. Return
GL
Governors Lane New York $1.56B AUM 30.42% 1-Year Est. Return
AIMCA
Alberta Investment Management Corp (AIMCo) Edmonton, Alberta, Canada $16.7B AUM 23.27% 1-Year Est. Return

Citadel Advisors's ATII Position: Q1 2026 in Review

Citadel Advisors opened a new position in Archimedes Tech SPAC Partners II Co (ATII) in Q1 2026: 10,377 shares worth $108K. The stake represents ﹤0.01% of the portfolio and ranks #11934 among its holdings.

54 funds tracked by Wall St. Rank hold ATII as of Q1 2026.

  • Citadel Advisors held 10,377 shares of Archimedes Tech SPAC Partners II Co worth $108K as of Q1 2026.
  • Archimedes Tech SPAC Partners II Co was a new Citadel Advisors position in Q1 2026.
  • Archimedes Tech SPAC Partners II Co made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #11934 holding.
  • 54 funds tracked by Wall St. Rank held Archimedes Tech SPAC Partners II Co as of Q1 2026.

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