WA
ATII

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

Whitebox 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
Q2 		$2.69M Hold
250,000
– – 0.04% 244
2026
Q1 		$2.6M Hold
250,000
– – 0.03% 209
2025
Q4 		$2.59M Hold
250,000
– – 0.04% 190
2025
Q3 		$2.55M Hold
250,000
– – 0.04% 182
2025
Q2 		$2.56M Buy
+250,000
New +$2.52M 0.05% 171

Other funds holding ATII

TCM
Tenor Capital Management New York $7.09B AUM 3.55% 1-Year Est. Return
FBCM
Fort Baker Capital Management Larkspur, California $1.37B AUM 26.91% 1-Year Est. Return
MF
Magnetar Financial Evanston, Illinois $11B AUM 3.37% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
DAM
Decagon Asset Management London, United Kingdom $525M AUM 50.51% 1-Year Est. Return
LA
Linden Advisors New York $19.3B AUM 1.47% 1-Year Est. Return
GCM
Ghisallo Capital Management Boston, Massachusetts $5.1B AUM 39.13% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
Hudson Bay Capital Management
Hudson Bay Capital Management Stamford, Connecticut $36.8B AUM 42.13% 1-Year Est. Return
SC
Shay Capital New York $1.56B AUM 46.17% 1-Year Est. Return

Whitebox Advisors's ATII Position: Q2 2026 in Review

Whitebox Advisors held its Archimedes Tech SPAC Partners II Co (ATII) position steady in Q2 2026 at 250,000 shares worth $2.69M. The position accounts for 0.04% of the portfolio, ranked #244.

Whitebox Advisors first reported a position in ATII in Q2 2025 and has held it in 5 quarters since. 50 funds tracked by Wall St. Rank hold ATII as of Q2 2026.

  • Whitebox Advisors held 250,000 shares of Archimedes Tech SPAC Partners II Co worth $2.69M as of Q2 2026.
  • Whitebox Advisors left its Archimedes Tech SPAC Partners II Co share count unchanged in Q2 2026.
  • Archimedes Tech SPAC Partners II Co made up 0.04% of Whitebox Advisors's portfolio in Q2 2026, its #244 holding.
  • Whitebox Advisors first reported a position in Archimedes Tech SPAC Partners II Co in Q2 2025 and has held it in 5 quarters since.
  • 50 funds tracked by Wall St. Rank held Archimedes Tech SPAC Partners II Co as of Q2 2026.

Based on Whitebox Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.