Jeff Yass’s Amtech Systems ASYS Stock Holding History

Jeff Yass’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	$404K	Buy	17,500 +3,500	+25%	+$66.5K	﹤0.01%	10389
2026 Q1	$164K	Sell	14,000 -13,900	-50%	-$187K	﹤0.01%	11908
2025 Q4	$350K	Buy	+27,900	New	+$251K	﹤0.01%	9583
2023 Q2	–	Sell	-13,600	Closed	-$130K	–	12017
2023 Q1	$130K	Sell	13,600 -5,000	-27%	-$47K	﹤0.01%	11053
2022 Q4	$141K	Buy	+18,600	New	+$168K	﹤0.01%	10580
2022 Q2	–	Sell	-52,400	Closed	-$527K	–	12828
2022 Q1	$527K	Buy	52,400 +1,500	+3%	+$14.3K	﹤0.01%	8840
2021 Q4	$503K	Buy	+50,900	New	+$587K	﹤0.01%	9203
2021 Q3	–	Sell	-29,600	Closed	-$285K	–	12706
2021 Q2	$285K	Buy	29,600 +16,800	+131%	+$172K	﹤0.01%	10872
2021 Q1	$151K	Buy	+12,800	New	+$118K	﹤0.01%	11649
2019 Q3	–	Sell	-11,200	Closed	-$62K	–	10127
2019 Q2	$62K	Sell	11,200 -3,000	-21%	-$18.3K	﹤0.01%	9785
2019 Q1	$76K	Sell	14,200 -18,600	-57%	-$91.9K	﹤0.01%	8346
2018 Q4	$149K	Buy	32,800 +1,000	+3%	+$4.88K	﹤0.01%	7985
2018 Q3	$170K	Sell	31,800 -5,300	-14%	-$29.1K	﹤0.01%	8339
2018 Q2	$224K	Buy	37,100 +9,600	+35%	+$74.9K	﹤0.01%	8397
2018 Q1	$201K	Buy	+27,500	New	+$248K	﹤0.01%	8317

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 $59.9B AUM 27.01% 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

Jeff Yass's ASYS Position: Q2 2026 in Review

Jeff Yass reduced its Amtech Systems (ASYS) stake by 68% in Q2 2026, selling an estimated $1.73M and leaving 42,842 shares worth $989K. The position accounts for ﹤0.01% of the portfolio, ranked #8229.

Jeff Yass first reported a position in ASYS in Q4 2017 and has held it in 23 quarters since. The position peaked at $1.56M in Q1 2026. 111 funds tracked by Wall St. Rank hold ASYS as of Q2 2026.

Jeff Yass held 42,842 shares of Amtech Systems worth $989K as of Q2 2026.
Jeff Yass sold 91,096 Amtech Systems shares in Q2 2026, an estimated $1.73M.
Amtech Systems made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #8229 holding.
Jeff Yass first reported a position in Amtech Systems in Q4 2017 and has held it in 23 quarters since.
Jeff Yass's Amtech Systems position peaked at $1.56M in Q1 2026.
111 funds tracked by Wall St. Rank held Amtech Systems as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.