ECOVYST INC

Ticker: ECVT CUSIP: 27923Q109 Class: EQTY

Y-Intercept (Hong Kong) Ltd's Holding History (CIK: 0001772875)

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

Q3 2025

Shares 226,182 Value ($000) $1,981 Avg Close $8.81 Range $7.38 - $9.69

Q1 2024

Shares 38,474 Value ($000) $429 Avg Close $9.46 Range $8.70 - $11.35

Q3 2023

Shares 10,935 Value ($000) $108 Avg Close $10.69 Range $9.44 - $12.35

Q4 2022

Shares 34,363 Value ($000) $304 Avg Close $9.21 Range $8.20 - $10.26

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	226,182	$1,981	$8.81	$7.38 - $9.69
Q1 2024	38,474	$429	$9.46	$8.70 - $11.35
Q3 2023	10,935	$108	$10.69	$9.44 - $12.35
Q4 2022	34,363	$304	$9.21	$8.20 - $10.26