ECOVYST INC

Ticker: ECVT CUSIP: 27923Q109 Class: EQTY

Aigen Investment Management, LP's Holding History (CIK: 0001741224)

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

Q4 2023

Shares 14,690 Value ($000) $144 Avg Close $9.52 Range $8.26 - $10.27

Q3 2023

Shares 14,956 Value ($000) $147 Avg Close $10.69 Range $9.44 - $12.35

Q3 2021

Shares 10,120 Value ($000) $118 Avg Close $12.38 Range $11.33 - $14.29

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2023	14,690	$144	$9.52	$8.26 - $10.27
Q3 2023	14,956	$147	$10.69	$9.44 - $12.35
Q3 2021	10,120	$118	$12.38	$11.33 - $14.29