Thompson Davis & Co’s Amtech Systems ASYS Stock Holding History

Thompson Davis & Co’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
2025 Q4	–	Sell	-13,250	Closed	-$123K	–	158
2025 Q3	$123K	Buy	+13,250	New	+$81K	0.08%	129
2018 Q1	–	Sell	-375	Closed	-$4K	–	627
2017 Q4	$4K	Sell	375 -2,625	-88%	-$32.1K	0.01%	538
2017 Q3	$36K	Buy	+3,000	New	+$30.2K	0.06%	310
2016 Q1	–	Sell	-500	Closed	-$3K	–	1074
2015 Q4	$3K	Buy	+500	New	+$2.58K	﹤0.01%	927
2015 Q2	–	Sell	-15,000	Closed	-$168K	–	1190
2015 Q1	$168K	Buy	15,000 +14,750	+5,900%	+$148K	0.2%	110
2014 Q4	$3K	Buy	+250	New	+$2.35K	﹤0.01%	1032
2014 Q2	–	Sell	-7,750	Closed	-$94K	–	763
2014 Q1	$94K	Buy	7,750 +4,500	+138%	+$46.9K	0.16%	169
2013 Q4	$23K	Buy	+3,250	New	+$25.3K	0.03%	326

Other funds holding ASYS

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

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

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

PRCP

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

Marshall Wace London, United Kingdom $100B AUM 35.1% 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

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

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Thompson Davis & Co's ASYS Position: Q4 2025 in Review

Thompson Davis & Co sold out of Amtech Systems (ASYS) in Q4 2025, closing a stake of 13,250 shares — an estimated $123K sold.

Thompson Davis & Co first reported a position in ASYS in Q4 2013 and held it in 8 quarters. The position peaked at $168K in Q1 2015. 65 funds tracked by Wall St. Rank hold ASYS as of Q4 2025.

Thompson Davis & Co reported no remaining Amtech Systems position as of Q4 2025 after selling out during the quarter.
Thompson Davis & Co sold 13,250 Amtech Systems shares in Q4 2025, an estimated $123K.
Thompson Davis & Co first reported a position in Amtech Systems in Q4 2013 and held it in 8 quarters.
Thompson Davis & Co's Amtech Systems position peaked at $168K in Q1 2015.
65 funds tracked by Wall St. Rank held Amtech Systems as of Q4 2025.

Based on Thompson Davis & Co's 13F filing for Q4 2025, filed 12 Jan 2026.