PMAM
ATII

Picton Mahoney Asset Management’s Archimedes Tech SPAC Partners II Co ATII Stock Holding History

Picton Mahoney Asset Management’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 		– Sell
-500,000
Closed -$5.21M – 1691
2026
Q1 		$5.21M Hold
500,000
– – 0.04% 338
2025
Q4 		$5.18M Hold
500,000
– – 0.04% 309
2025
Q3 		$5.12M Hold
500,000
– – 0.05% 276
2025
Q2 		$5.12M Buy
+500,000
New +$5.04M 0.05% 261

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

Picton Mahoney Asset Management's ATII Position: Q2 2026 in Review

Picton Mahoney Asset Management sold out of Archimedes Tech SPAC Partners II Co (ATII) in Q2 2026, closing a stake of 500,000 shares — an estimated $5.21M sold.

Picton Mahoney Asset Management first reported a position in ATII in Q2 2025 and held it in 4 quarters. The position peaked at $5.21M in Q1 2026. 50 funds tracked by Wall St. Rank hold ATII as of Q2 2026.

  • Picton Mahoney Asset Management reported no remaining Archimedes Tech SPAC Partners II Co position as of Q2 2026 after selling out during the quarter.
  • Picton Mahoney Asset Management sold 500,000 Archimedes Tech SPAC Partners II Co shares in Q2 2026, an estimated $5.21M.
  • Picton Mahoney Asset Management first reported a position in Archimedes Tech SPAC Partners II Co in Q2 2025 and held it in 4 quarters.
  • Picton Mahoney Asset Management's Archimedes Tech SPAC Partners II Co position peaked at $5.21M in Q1 2026.
  • 50 funds tracked by Wall St. Rank held Archimedes Tech SPAC Partners II Co as of Q2 2026.

Based on Picton Mahoney Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.