HUDSON TECHNOLOGIES INC

Ticker: HDSN CUSIP: 444144109 Class: Common Stock

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q4 2025

Shares 982,819 Value ($000) $6,732 Avg Close $7.88 Range $6.45 - $9.85

Q3 2025

Shares 1,111,803 Value ($000) $11,040 Avg Close $9.39 Range $7.98 - $10.52

Q2 2025

Shares 1,111,803 Value ($000) $9,028 Avg Close $6.86 Range $5.11 - $8.37

Q1 2025

Shares 547,904 Value ($000) $3,381 Avg Close $5.88 Range $5.29 - $6.35

Q4 2024

Shares 310,564 Value ($000) $1,733 Avg Close $6.59 Range $5.17 - $8.55

Q1 2024

Shares 67,875 Value ($000) $1 Avg Close $13.02 Range $10.79 - $15.24

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	982,819	$6,732	$7.88	$6.45 - $9.85
Q3 2025	1,111,803	$11,040	$9.39	$7.98 - $10.52
Q2 2025	1,111,803	$9,028	$6.86	$5.11 - $8.37
Q1 2025	547,904	$3,381	$5.88	$5.29 - $6.35
Q4 2024	310,564	$1,733	$6.59	$5.17 - $8.55
Q1 2024	67,875	$1	$13.02	$10.79 - $15.24