Jane Street’s Archimedes Tech SPAC Partners II Co Unit ATIIU Stock Holding History

Jane Street’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
2026 Q1	$502K	Hold	46,060	–	–	﹤0.01%	8024
2025 Q4	$488K	Sell	46,060 -11	-0%	-$117	﹤0.01%	7734
2025 Q3	$579K	Sell	46,071 -589	-1%	-$6.31K	﹤0.01%	7538
2025 Q2	$481K	Sell	46,660 -18,450	-28%	-$189K	﹤0.01%	6995
2025 Q1	$657K	Buy	+65,110	New	+$654K	﹤0.01%	6362

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

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

Jane Street's ATIIU Position: Q1 2026 in Review

Jane Street held its Archimedes Tech SPAC Partners II Co Unit (ATIIU) position steady in Q1 2026 at 46,060 shares worth $502K. The position accounts for ﹤0.01% of the portfolio, ranked #8024.

Jane Street first reported a position in ATIIU in Q1 2025 and has held it in 5 quarters since. The position peaked at $657K in Q1 2025. 5 funds tracked by Wall St. Rank hold ATIIU as of Q1 2026.

Jane Street held 46,060 shares of Archimedes Tech SPAC Partners II Co Unit worth $502K as of Q1 2026.
Jane Street left its Archimedes Tech SPAC Partners II Co Unit share count unchanged in Q1 2026.
Archimedes Tech SPAC Partners II Co Unit made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #8024 holding.
Jane Street first reported a position in Archimedes Tech SPAC Partners II Co Unit in Q1 2025 and has held it in 5 quarters since.
Jane Street's Archimedes Tech SPAC Partners II Co Unit position peaked at $657K in Q1 2025.
5 funds tracked by Wall St. Rank held Archimedes Tech SPAC Partners II Co Unit as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.