HUDSON TECHNOLOGIES INC

Ticker: HDSN CUSIP: 444144109 Class: Common Stock

ISTHMUS PARTNERS, LLC's Holding History (CIK: 0001639666)

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

Q4 2025

Shares 47,664 Value ($000) $326 Avg Close $7.88 Range $6.45 - $9.85

Q3 2025

Shares 48,516 Value ($000) $482 Avg Close $9.39 Range $7.98 - $10.52

Q2 2025

Shares 48,516 Value ($000) $394 Avg Close $6.86 Range $5.11 - $8.37

Q1 2025

Shares 30,290 Value ($000) $187 Avg Close $5.88 Range $5.29 - $6.35

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	47,664	$326	$7.88	$6.45 - $9.85
Q3 2025	48,516	$482	$9.39	$7.98 - $10.52
Q2 2025	48,516	$394	$6.86	$5.11 - $8.37
Q1 2025	30,290	$187	$5.88	$5.29 - $6.35