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	$989K	Sell	42,842 -91,096	-68%	-$1.73M	﹤0.01%	8229
2026 Q1	$1.56M	Buy	133,938 +53,308	+66%	+$718K	﹤0.01%	6762
2025 Q4	$1.01M	Buy	80,630 +60,693	+304%	+$547K	﹤0.01%	7167
2025 Q3	$185K	Buy	+19,937	New	+$122K	﹤0.01%	11077
2025 Q2	–	Sell	-16,260	Closed	-$78.5K	–	12612
2025 Q1	$78.5K	Buy	+16,260	New	+$83.9K	﹤0.01%	11684
2024 Q4	–	Sell	-38,946	Closed	-$226K	–	12142
2024 Q3	$226K	Buy	38,946 +5,673	+17%	+$34.5K	﹤0.01%	10213
2024 Q2	$195K	Buy	33,273 +2,080	+7%	+$11.2K	﹤0.01%	10392
2024 Q1	$169K	Sell	31,193 -25,237	-45%	-$114K	﹤0.01%	10790
2023 Q4	$237K	Buy	+56,430	New	+$383K	﹤0.01%	10333
2023 Q3	–	Sell	-20,806	Closed	-$199K	–	11978
2023 Q2	$199K	Sell	20,806 -16,133	-44%	-$147K	﹤0.01%	10280
2023 Q1	$352K	Buy	36,939 +2,354	+7%	+$22.1K	﹤0.01%	9362
2022 Q4	$263K	Buy	+34,585	New	+$313K	﹤0.01%	9426
2022 Q2	–	Sell	-39,116	Closed	-$394K	–	12827
2022 Q1	$394K	Buy	39,116 +12,123	+45%	+$116K	﹤0.01%	9578
2021 Q4	$267K	Sell	26,993 -11,831	-30%	-$136K	﹤0.01%	10761
2021 Q3	$444K	Buy	38,824 +16,421	+73%	+$168K	﹤0.01%	9685
2021 Q2	$216K	Sell	22,403 -71,103	-76%	-$729K	﹤0.01%	11436
2021 Q1	$1.1M	Buy	93,506 +75,000	+405%	+$694K	﹤0.01%	7476
2020 Q4	$118K	Buy	+18,506	New	+$110K	﹤0.01%	10409
2019 Q1	–	Sell	-21,822	Closed	-$108K	–	8779
2018 Q4	$99K	Buy	21,822 +5,004	+30%	+$24.4K	﹤0.01%	8232
2018 Q3	$90K	Sell	16,818 -16,666	-50%	-$91.4K	﹤0.01%	8647
2018 Q2	$203K	Buy	33,484 +9,174	+38%	+$71.6K	﹤0.01%	8584
2018 Q1	$178K	Buy	24,310 +24	+0.1%	+$216	﹤0.01%	8407
2017 Q4	$245K	Buy	+24,286	New	+$297K	﹤0.01%	7914

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.