Millennium Management
ATII

Millennium Management’s Archimedes Tech SPAC Partners II Co ATII Stock Holding History

Millennium 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 		$748K Sell
69,384
-238,601
-77% -$2.59M ﹤0.01% 4518
2026
Q1 		$3.21M Hold
307,985
– – ﹤0.01% 3406
2025
Q4 		$3.19M Buy
307,985
+4,020
+1% +$41.7K ﹤0.01% 3480
2025
Q3 		$3.1M Buy
+303,965
New +$3.1M ﹤0.01% 3630

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

Millennium Management's ATII Position: Q2 2026 in Review

Millennium Management reduced its Archimedes Tech SPAC Partners II Co (ATII) stake by 77% in Q2 2026, selling an estimated $2.59M and leaving 69,384 shares worth $748K. The position accounts for ﹤0.01% of the portfolio, ranked #4518.

Millennium Management first reported a position in ATII in Q3 2025 and has held it in 4 quarters since. The position peaked at $3.21M in Q1 2026. 49 funds tracked by Wall St. Rank hold ATII as of Q2 2026.

  • Millennium Management held 69,384 shares of Archimedes Tech SPAC Partners II Co worth $748K as of Q2 2026.
  • Millennium Management sold 238,601 Archimedes Tech SPAC Partners II Co shares in Q2 2026, an estimated $2.59M.
  • Archimedes Tech SPAC Partners II Co made up ﹤0.01% of Millennium Management's portfolio in Q2 2026, its #4518 holding.
  • Millennium Management first reported a position in Archimedes Tech SPAC Partners II Co in Q3 2025 and has held it in 4 quarters since.
  • Millennium Management's Archimedes Tech SPAC Partners II Co position peaked at $3.21M in Q1 2026.
  • 49 funds tracked by Wall St. Rank held Archimedes Tech SPAC Partners II Co as of Q2 2026.

Based on Millennium Management's 13F filing for Q2 2026, filed 14 Aug 2026.