ECOVYST INC

Ticker: ECVT CUSIP: 27923Q109 Class: EQTY

UMB Bank, n.a.'s Holding History (CIK: 0000933429)

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

Q4 2025

Shares 272,651 Value ($000) $2,653 Avg Close $8.73 Range $7.41 - $10.01

Q3 2025

Shares 272,651 Value ($000) $2,388 Avg Close $8.81 Range $7.38 - $9.69

Q2 2025

Shares 518,584 Value ($000) $4,268 Avg Close $7.02 Range $5.24 - $8.64

Q1 2025

Shares 518,584 Value ($000) $3,215 Avg Close $7.40 Range $6.08 - $8.53

Q4 2021

Shares 200 Value ($000) $2 Avg Close $10.94 Range $9.12 - $13.79

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	272,651	$2,653	$8.73	$7.41 - $10.01
Q3 2025	272,651	$2,388	$8.81	$7.38 - $9.69
Q2 2025	518,584	$4,268	$7.02	$5.24 - $8.64
Q1 2025	518,584	$3,215	$7.40	$6.08 - $8.53
Q4 2021	200	$2	$10.94	$9.12 - $13.79