HUDSON TECHNOLOGIES INC

Ticker: HDSN CUSIP: 444144109 Class: Common Stock

TWO SIGMA INVESTMENTS, LP's Holding History (CIK: 0001179392)

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

Q4 2025

Shares 135,400 Value ($000) $927 Avg Close $7.88 Range $6.45 - $9.85

Q3 2025

Shares 190,221 Value ($000) $1,889 Avg Close $9.39 Range $7.98 - $10.52

Q2 2025

Shares 353,279 Value ($000) $2,869 Avg Close $6.86 Range $5.11 - $8.37

Q1 2025

Shares 547,096 Value ($000) $3,376 Avg Close $5.88 Range $5.29 - $6.35

Q4 2024

Shares 361,978 Value ($000) $2,020 Avg Close $6.59 Range $5.17 - $8.55

Q3 2024

Shares 83,626 Value ($000) $697 Avg Close $8.27 Range $6.94 - $9.28

Q2 2024

Shares 149,839 Value ($000) $1,317 Avg Close $9.69 Range $7.90 - $11.49

Q1 2024

Shares 154,960 Value ($000) $1,706 Avg Close $13.02 Range $10.79 - $15.24

Q4 2023

Shares 288,747 Value ($000) $3,895 Avg Close $12.91 Range $11.34 - $14.14

Q3 2023

Shares 159,905 Value ($000) $2,127 Avg Close $10.79 Range $8.52 - $13.75

Q1 2023

Shares 29,900 Value ($000) $261 Avg Close $9.68 Range $7.57 - $11.63

Q4 2022

Shares 115,049 Value ($000) $1,164 Avg Close $9.77 Range $7.07 - $12.46

Q3 2022

Shares 172,447 Value ($000) $1,267 Avg Close $8.41 Range $6.62 - $11.16

Q2 2022

Shares 223,278 Value ($000) $1,677 Avg Close $8.25 Range $5.78 - $10.76

Q1 2022

Shares 425,823 Value ($000) $2,644 Avg Close $4.44 Range $3.11 - $6.54

Q4 2021

Shares 245,216 Value ($000) $1,089 Avg Close $3.88 Range $3.22 - $4.89

Q3 2021

Shares 179,330 Value ($000) $633 Avg Close $3.34 Range $2.70 - $4.10

Q2 2021

Shares 103,910 Value ($000) $353 Avg Close $2.41 Range $1.62 - $3.54

Q1 2019

Shares 20,449 Value ($000) $39 Avg Close $1.41 Range $0.89 - $2.25

Q4 2018

Shares 101,459 Value ($000) $90 Avg Close $1.10 Range $0.70 - $2.14

Q3 2018

Shares 124,564 Value ($000) $159 Avg Close $1.77 Range $1.22 - $2.39

Q2 2018

Shares 139,565 Value ($000) $281 Avg Close $3.24 Range $1.93 - $4.97

Q2 2017

Shares 26,412 Value ($000) $223 Avg Close $7.65 Range $6.32 - $8.93

Q1 2014

Shares 18,002 Value ($000) $50 Avg Close $3.32 Range $2.68 - $4.00

Q4 2013

Shares 31,362 Value ($000) $116 Avg Close $2.46 Range $1.75 - $3.72

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	135,400	$927	$7.88	$6.45 - $9.85
Q3 2025	190,221	$1,889	$9.39	$7.98 - $10.52
Q2 2025	353,279	$2,869	$6.86	$5.11 - $8.37
Q1 2025	547,096	$3,376	$5.88	$5.29 - $6.35
Q4 2024	361,978	$2,020	$6.59	$5.17 - $8.55
Q3 2024	83,626	$697	$8.27	$6.94 - $9.28
Q2 2024	149,839	$1,317	$9.69	$7.90 - $11.49
Q1 2024	154,960	$1,706	$13.02	$10.79 - $15.24
Q4 2023	288,747	$3,895	$12.91	$11.34 - $14.14
Q3 2023	159,905	$2,127	$10.79	$8.52 - $13.75
Q1 2023	29,900	$261	$9.68	$7.57 - $11.63
Q4 2022	115,049	$1,164	$9.77	$7.07 - $12.46
Q3 2022	172,447	$1,267	$8.41	$6.62 - $11.16
Q2 2022	223,278	$1,677	$8.25	$5.78 - $10.76
Q1 2022	425,823	$2,644	$4.44	$3.11 - $6.54
Q4 2021	245,216	$1,089	$3.88	$3.22 - $4.89
Q3 2021	179,330	$633	$3.34	$2.70 - $4.10
Q2 2021	103,910	$353	$2.41	$1.62 - $3.54
Q1 2019	20,449	$39	$1.41	$0.89 - $2.25
Q4 2018	101,459	$90	$1.10	$0.70 - $2.14
Q3 2018	124,564	$159	$1.77	$1.22 - $2.39
Q2 2018	139,565	$281	$3.24	$1.93 - $4.97
Q2 2017	26,412	$223	$7.65	$6.32 - $8.93
Q1 2014	18,002	$50	$3.32	$2.68 - $4.00
Q4 2013	31,362	$116	$2.46	$1.75 - $3.72