HUDSON TECHNOLOGIES INC

Ticker: HDSN CUSIP: 444144109 Class: Common Stock

North Star Investment Management Corp.'s Holding History (CIK: 0001342857)

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

Q4 2025

Shares 4,075 Value ($000) $28 Avg Close $7.88 Range $6.45 - $9.85

Q3 2025

Shares 170,075 Value ($000) $1,689 Avg Close $9.39 Range $7.98 - $10.52

Q2 2025

Shares 164,075 Value ($000) $1,332 Avg Close $6.86 Range $5.11 - $8.37

Q4 2024

Shares 189,125 Value ($000) $1,055 Avg Close $6.59 Range $5.17 - $8.55

Q3 2024

Shares 147,650 Value ($000) $1,231 Avg Close $8.27 Range $6.94 - $9.28

Q2 2024

Shares 133,650 Value ($000) $1,175 Avg Close $9.69 Range $7.90 - $11.49

Q3 2017

Shares 400 Value ($000) $3 Avg Close $8.66 Range $7.58 - $10.40

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	4,075	$28	$7.88	$6.45 - $9.85
Q3 2025	170,075	$1,689	$9.39	$7.98 - $10.52
Q2 2025	164,075	$1,332	$6.86	$5.11 - $8.37
Q4 2024	189,125	$1,055	$6.59	$5.17 - $8.55
Q3 2024	147,650	$1,231	$8.27	$6.94 - $9.28
Q2 2024	133,650	$1,175	$9.69	$7.90 - $11.49
Q3 2017	400	$3	$8.66	$7.58 - $10.40