KPF
ATII

K2 Principal Fund’s Archimedes Tech SPAC Partners II Co ATII Stock Holding History

K2 Principal Fund’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 		$5.67M Buy
526,227
+438,327
+499% +$4.76M 0.42% 79
2026
Q1 		$915K Hold
87,900
– – 0.06% 283
2025
Q4 		$911K Sell
87,900
-25,770
-23% -$267K 0.07% 234
2025
Q3 		$1.16M Sell
113,670
-46,500
-29% -$475K 0.09% 187
2025
Q2 		$1.64M Buy
+160,170
New +$1.61M 0.23% 120

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

K2 Principal Fund's ATII Position: Q2 2026 in Review

K2 Principal Fund increased its Archimedes Tech SPAC Partners II Co (ATII) stake by 499% in Q2 2026, buying an estimated $4.76M and bringing the position to 526,227 shares worth $5.67M. The position accounts for 0.42% of the portfolio, ranked #79.

K2 Principal Fund 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.

  • K2 Principal Fund held 526,227 shares of Archimedes Tech SPAC Partners II Co worth $5.67M as of Q2 2026.
  • K2 Principal Fund bought 438,327 Archimedes Tech SPAC Partners II Co shares in Q2 2026, an estimated $4.76M.
  • Archimedes Tech SPAC Partners II Co made up 0.42% of K2 Principal Fund's portfolio in Q2 2026, its #79 holding.
  • K2 Principal Fund 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 K2 Principal Fund's 13F filing for Q2 2026, filed 7 Aug 2026.