Marshall Wace’s Amtech Systems ASYS Stock Holding History

Marshall Wace’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 Q1	$4.87M	Buy	417,076 +64,452	+18%	+$868K	﹤0.01%	1321
2025 Q4	$4.43M	Buy	352,624 +247,352	+235%	+$2.23M	﹤0.01%	1205
2025 Q3	$975K	Buy	+105,272	New	+$643K	﹤0.01%	1956
2024 Q2	–	Sell	-20,797	Closed	-$113K	–	2527
2024 Q1	$113K	Buy	+20,797	New	+$93.7K	﹤0.01%	2300

Other funds holding ASYS

First Eagle Investment Management New York $59B AUM 32.99% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

PRCP

Pacific Ridge Capital Partners Lake Oswego, Oregon $462M AUM 40.76% 1-Year Est. Return

Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return

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

Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return

Connor, Clark & Lunn Investment Management (CC&L) Vancouver, British Columbia, Canada $43.4B AUM 51.29% 1-Year Est. Return

Marshall Wace's ASYS Position: Q1 2026 in Review

Marshall Wace increased its Amtech Systems (ASYS) stake by 18% in Q1 2026, buying an estimated $868K and bringing the position to 417,076 shares worth $4.87M. The position accounts for ﹤0.01% of the portfolio, ranked #1321.

Marshall Wace first reported a position in ASYS in Q1 2024 and has held it in 4 quarters since. 79 funds tracked by Wall St. Rank hold ASYS as of Q1 2026.

Marshall Wace held 417,076 shares of Amtech Systems worth $4.87M as of Q1 2026.
Marshall Wace bought 64,452 Amtech Systems shares in Q1 2026, an estimated $868K.
Amtech Systems made up ﹤0.01% of Marshall Wace's portfolio in Q1 2026, its #1321 holding.
Marshall Wace first reported a position in Amtech Systems in Q1 2024 and has held it in 4 quarters since.
79 funds tracked by Wall St. Rank held Amtech Systems as of Q1 2026.

Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.