Mangrove Partners’s Archimedes Tech SPAC Partners III ARCI Stock Holding History

Mangrove Partners’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	$2M	Buy	+200,000	New	+$1.99M	0.13%	111

Other funds holding ARCI

Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return

Linden Advisors New York $19.3B AUM 1.47% 1-Year Est. Return

Magnetar Financial Evanston, Illinois $11B AUM 3.37% 1-Year Est. Return

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 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

AQR Arbitrage Greenwich, Connecticut $7.02B AUM 31.58% 1-Year Est. Return

Healthcare of Ontario Pension Plan (HOOPP) Trust Fund Toronto, Ontario, Canada $71.2B AUM 48.86% 1-Year Est. Return

Mangrove Partners's ARCI Position: Q2 2026 in Review

Mangrove Partners opened a new position in Archimedes Tech SPAC Partners III (ARCI) in Q2 2026: 200,000 shares worth $2M. The stake represents 0.13% of the portfolio and ranks #111 among its holdings.

52 funds tracked by Wall St. Rank hold ARCI as of Q2 2026.

Mangrove Partners held 200,000 shares of Archimedes Tech SPAC Partners III worth $2M as of Q2 2026.
Archimedes Tech SPAC Partners III was a new Mangrove Partners position in Q2 2026.
Archimedes Tech SPAC Partners III made up 0.13% of Mangrove Partners's portfolio in Q2 2026, its #111 holding.
52 funds tracked by Wall St. Rank held Archimedes Tech SPAC Partners III as of Q2 2026.

Based on Mangrove Partners's 13F filing for Q2 2026, filed 14 Aug 2026.