Rivernorth Capital Management’s Archimedes Tech SPAC Partners II Co Unit ATIIU Stock Holding History

Rivernorth Capital Management’s Portfolio ATIIU Stock Details ATIIU Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-92,135	Closed	-$940K	–	520
2025 Q3	$940K	Sell	92,135 -357,865	-80%	-$3.84M	0.05%	254
2025 Q2	$4.58M	Hold	450,000	–	–	0.25%	113
2025 Q1	$4.54M	Buy	+450,000	New	+$4.52M	0.24%	107

Other funds holding ATIIU

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Clear Street New York $24.6B AUM 56.26% 1-Year Est. Return

Jane Street New York $777B AUM 61.18% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

Rivernorth Capital Management's ATIIU Position: Q4 2025 in Review

Rivernorth Capital Management sold out of Archimedes Tech SPAC Partners II Co Unit (ATIIU) in Q4 2025, closing a stake of 92,135 shares — an estimated $940K sold.

Rivernorth Capital Management first reported a position in ATIIU in Q1 2025 and held it in 3 quarters. The position peaked at $4.58M in Q2 2025. 4 funds tracked by Wall St. Rank hold ATIIU as of Q4 2025.

Rivernorth Capital Management reported no remaining Archimedes Tech SPAC Partners II Co Unit position as of Q4 2025 after selling out during the quarter.
Rivernorth Capital Management sold 92,135 Archimedes Tech SPAC Partners II Co Unit shares in Q4 2025, an estimated $940K.
Rivernorth Capital Management first reported a position in Archimedes Tech SPAC Partners II Co Unit in Q1 2025 and held it in 3 quarters.
Rivernorth Capital Management's Archimedes Tech SPAC Partners II Co Unit position peaked at $4.58M in Q2 2025.
4 funds tracked by Wall St. Rank held Archimedes Tech SPAC Partners II Co Unit as of Q4 2025.

Based on Rivernorth Capital Management's 13F filing for Q4 2025, filed 17 Feb 2026.