HUDSON TECHNOLOGIES INC

Ticker: HDSN CUSIP: 444144109 Class: Common Stock

TWO SIGMA ADVISERS, LP's Holding History (CIK: 0001478735)

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

Q4 2025

Shares 167,300 Value ($000) $1,146 Avg Close $7.88 Range $6.45 - $9.85

Q3 2025

Shares 227,700 Value ($000) $2,261 Avg Close $9.39 Range $7.98 - $10.52

Q2 2025

Shares 394,100 Value ($000) $3,200 Avg Close $6.86 Range $5.11 - $8.37

Q1 2025

Shares 528,200 Value ($000) $3,259 Avg Close $5.88 Range $5.29 - $6.35

Q4 2024

Shares 234,400 Value ($000) $1,308 Avg Close $6.59 Range $5.17 - $8.55

Q3 2024

Shares 94,600 Value ($000) $789 Avg Close $8.27 Range $6.94 - $9.28

Q2 2024

Shares 150,700 Value ($000) $1,325 Avg Close $9.69 Range $7.90 - $11.49

Q1 2024

Shares 181,000 Value ($000) $1,993 Avg Close $13.02 Range $10.79 - $15.24

Q4 2023

Shares 208,900 Value ($000) $2,818 Avg Close $12.91 Range $11.34 - $14.14

Q3 2023

Shares 126,100 Value ($000) $1,677 Avg Close $10.79 Range $8.52 - $13.75

Q2 2023

Shares 82,600 Value ($000) $795 Avg Close $8.69 Range $7.21 - $9.87

Q1 2023

Shares 274,100 Value ($000) $2,393 Avg Close $9.68 Range $7.57 - $11.63

Q4 2022

Shares 423,600 Value ($000) $4,287 Avg Close $9.77 Range $7.07 - $12.46

Q3 2022

Shares 362,800 Value ($000) $2,667 Avg Close $8.41 Range $6.62 - $11.16

Q2 2022

Shares 410,700 Value ($000) $3,084 Avg Close $8.25 Range $5.78 - $10.76

Q1 2022

Shares 286,400 Value ($000) $1,779 Avg Close $4.44 Range $3.11 - $6.54

Q4 2021

Shares 269,800 Value ($000) $1,198 Avg Close $3.88 Range $3.22 - $4.89

Q3 2021

Shares 38,100 Value ($000) $134 Avg Close $3.34 Range $2.70 - $4.10

Q3 2020

Shares 14,500 Value ($000) $17 Avg Close $1.14 Range $0.90 - $1.54

Q2 2020

Shares 21,400 Value ($000) $22 Avg Close $0.88 Range $0.61 - $1.22

Q1 2020

Shares 29,300 Value ($000) $20 Avg Close $0.79 Range $0.52 - $1.02

Q4 2019

Shares 33,700 Value ($000) $33 Avg Close $0.67 Range $0.50 - $1.03

Q3 2019

Shares 36,200 Value ($000) $26 Avg Close $0.62 Range $0.30 - $0.93

Q2 2019

Shares 42,800 Value ($000) $37 Avg Close $1.59 Range $0.78 - $2.20

Q1 2019

Shares 42,500 Value ($000) $82 Avg Close $1.41 Range $0.89 - $2.25

Q4 2018

Shares 44,900 Value ($000) $40 Avg Close $1.10 Range $0.70 - $2.14

Q3 2018

Shares 49,100 Value ($000) $63 Avg Close $1.77 Range $1.22 - $2.39

Q2 2018

Shares 52,000 Value ($000) $105 Avg Close $3.24 Range $1.93 - $4.97

Q1 2018

Shares 16,800 Value ($000) $83 Avg Close $5.89 Range $4.39 - $6.98

Q4 2017

Shares 22,400 Value ($000) $136 Avg Close $6.09 Range $5.40 - $8.02

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	167,300	$1,146	$7.88	$6.45 - $9.85
Q3 2025	227,700	$2,261	$9.39	$7.98 - $10.52
Q2 2025	394,100	$3,200	$6.86	$5.11 - $8.37
Q1 2025	528,200	$3,259	$5.88	$5.29 - $6.35
Q4 2024	234,400	$1,308	$6.59	$5.17 - $8.55
Q3 2024	94,600	$789	$8.27	$6.94 - $9.28
Q2 2024	150,700	$1,325	$9.69	$7.90 - $11.49
Q1 2024	181,000	$1,993	$13.02	$10.79 - $15.24
Q4 2023	208,900	$2,818	$12.91	$11.34 - $14.14
Q3 2023	126,100	$1,677	$10.79	$8.52 - $13.75
Q2 2023	82,600	$795	$8.69	$7.21 - $9.87
Q1 2023	274,100	$2,393	$9.68	$7.57 - $11.63
Q4 2022	423,600	$4,287	$9.77	$7.07 - $12.46
Q3 2022	362,800	$2,667	$8.41	$6.62 - $11.16
Q2 2022	410,700	$3,084	$8.25	$5.78 - $10.76
Q1 2022	286,400	$1,779	$4.44	$3.11 - $6.54
Q4 2021	269,800	$1,198	$3.88	$3.22 - $4.89
Q3 2021	38,100	$134	$3.34	$2.70 - $4.10
Q3 2020	14,500	$17	$1.14	$0.90 - $1.54
Q2 2020	21,400	$22	$0.88	$0.61 - $1.22
Q1 2020	29,300	$20	$0.79	$0.52 - $1.02
Q4 2019	33,700	$33	$0.67	$0.50 - $1.03
Q3 2019	36,200	$26	$0.62	$0.30 - $0.93
Q2 2019	42,800	$37	$1.59	$0.78 - $2.20
Q1 2019	42,500	$82	$1.41	$0.89 - $2.25
Q4 2018	44,900	$40	$1.10	$0.70 - $2.14
Q3 2018	49,100	$63	$1.77	$1.22 - $2.39
Q2 2018	52,000	$105	$3.24	$1.93 - $4.97
Q1 2018	16,800	$83	$5.89	$4.39 - $6.98
Q4 2017	22,400	$136	$6.09	$5.40 - $8.02