Jane Street’s Amtech Systems ASYS Stock Holding History

Jane Street’s Portfolio ASYS Stock Details ASYS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$1.92M	Buy	+83,000	New	+$1.58M	﹤0.01%	5233

Other funds holding ASYS

ACM

AIGH Capital Management Baltimore, Maryland $1.59B AUM 855.46% 1-Year Est. Return

First Eagle Investment Management New York $60.8B AUM 26.63% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

AIC

AWM Investment Company New York $1.15B AUM 201.65% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return

Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Jane Street's ASYS Position: Q2 2026 in Review

Jane Street reduced its Amtech Systems (ASYS) stake by 27% in Q2 2026, selling an estimated $1.74M and leaving 249,465 shares worth $5.76M. The position accounts for ﹤0.01% of the portfolio, ranked #3505.

Jane Street first reported a position in ASYS in Q3 2025 and has held it in 4 quarters since. 112 funds tracked by Wall St. Rank hold ASYS as of Q2 2026.

Jane Street held 249,465 shares of Amtech Systems worth $5.76M as of Q2 2026.
Jane Street sold 91,414 Amtech Systems shares in Q2 2026, an estimated $1.74M.
Amtech Systems made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #3505 holding.
Jane Street first reported a position in Amtech Systems in Q3 2025 and has held it in 4 quarters since.
112 funds tracked by Wall St. Rank held Amtech Systems as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.