JO
ARCI

John Overdeck’s Archimedes Tech SPAC Partners III ARCI Stock Holding History

John Overdeck’s Portfolio ARCI Stock Details ARCI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$2.74M Hold
273,791
– – ﹤0.01% 2711
2026
Q1 		$2.7M Buy
+273,791
New +$2.7M ﹤0.01% 2533

Other funds holding ARCI

Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return
LA
Linden Advisors New York $19.3B AUM 1.47% 1-Year Est. Return
MF
Magnetar Financial Evanston, Illinois $11B AUM 3.37% 1-Year Est. Return
GL
Governors Lane New York $1.2B AUM 26.21% 1-Year Est. Return
AIMCA
Alberta Investment Management Corp (AIMCo) Edmonton, Alberta, Canada $17.9B AUM 27.56% 1-Year Est. Return
TCM
Tenor Capital Management New York $7.09B AUM 3.55% 1-Year Est. Return
Verition Fund Management
Verition Fund Management Greenwich, Connecticut $19.7B AUM 39.39% 1-Year Est. Return
SAMU
SONA Asset Management (US) New York $4.76B AUM 23.76% 1-Year Est. Return
AA
AQR Arbitrage Greenwich, Connecticut $7.02B AUM 31.58% 1-Year Est. Return
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund Toronto, Ontario, Canada $71.2B AUM 48.86% 1-Year Est. Return

John Overdeck's ARCI Position: Q2 2026 in Review

John Overdeck held its Archimedes Tech SPAC Partners III (ARCI) position steady in Q2 2026 at 273,791 shares worth $2.74M. The position accounts for ﹤0.01% of the portfolio, ranked #2711.

John Overdeck first reported a position in ARCI in Q1 2026 and has held it in 2 quarters since. 52 funds tracked by Wall St. Rank hold ARCI as of Q2 2026.

  • John Overdeck held 273,791 shares of Archimedes Tech SPAC Partners III worth $2.74M as of Q2 2026.
  • John Overdeck left its Archimedes Tech SPAC Partners III share count unchanged in Q2 2026.
  • Archimedes Tech SPAC Partners III made up ﹤0.01% of John Overdeck's portfolio in Q2 2026, its #2711 holding.
  • John Overdeck first reported a position in Archimedes Tech SPAC Partners III in Q1 2026 and has held it in 2 quarters since.
  • 52 funds tracked by Wall St. Rank held Archimedes Tech SPAC Partners III as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.