AMTECH SYS INC

Ticker: ASYS CUSIP: 032332504 Class: COM PAR $0.01N

JANE STREET GROUP, LLC's Holding History (CIK: 0001595888)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 325,754 Value ($000) $4,088 Avg Close $9.01 Range $6.75 - $13.26

Q3 2025

Shares 175,422 Value ($000) $1,624 Avg Close $6.11 Range $4.30 - $10.25

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	325,754	$4,088	$9.01	$6.75 - $13.26
Q3 2025	175,422	$1,624	$6.11	$4.30 - $10.25