Hudson Technologies, Inc.

Historical 13F Holders

Symbol
HDSN
CUSIP
444144109
All holders as of
Q2 2026
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 444144109 since 12/18/2024, largest first.

Filer % of Class Filed
Hartree Partners, LP 13G/A 11.8% 7/2/2026
Event 6/30/2026
Westerly Capital Management, LLC 13G/A 5.9% 2/17/2026
Event 12/31/2025
Under 5%, checked the "5 percent or less" box, or amended by a later filing (2)
Dimensional Fund Advisors LP 13G/A 4.7% 7/14/2026
Event 6/30/2026
Vanguard Group Inc 13G/A 0% 3/27/2026
Event 3/13/2026

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 9 190 k $978 k
2026 Q2 154 31.6 M $182 M
2026 Q1 162 33.0 M $194 M
2025 Q4 168 33.0 M $226 M
2025 Q3 178 33.4 M $332 M
2025 Q2 156 35.0 M $284 M
2025 Q1 168 31.6 M $195 M
2024 Q4 177 30.3 M $170 M
2024 Q3 179 31.2 M $260 M
2024 Q2 171 32.5 M $286 M
2024 Q1 177 32.3 M $356 M
2023 Q4 156 31.7 M $428 M
2023 Q3 151 29.6 M $394 M
2023 Q2 142 28.9 M $278 M
2023 Q1 153 28.0 M $244 M
2022 Q4 156 28.7 M $291 M
2022 Q3 144 28.6 M $210 M
2022 Q2 123 28.8 M $216 M
2022 Q1 85 25.4 M $158 M
2021 Q4 73 22.4 M $99.3 M
2021 Q3 67 18.5 M $65.3 M
2021 Q2 59 16.7 M $56.9 M
2021 Q1 42 14.8 M $23.9 M
2020 Q4 44 15.0 M $16.4 M
2020 Q3 37 15.8 M $18.1 M
2020 Q2 36 15.6 M $15.8 M
2020 Q1 39 16.6 M $11.4 M
2019 Q4 46 17.9 M $17.5 M
2019 Q3 50 19.0 M $13.5 M
2019 Q2 63 25.9 M $22.3 M
2019 Q1 56 26.7 M $51.6 M
2018 Q4 62 27.9 M $24.8 M
2018 Q3 76 30.8 M $39.4 M
2018 Q2 90 32.9 M $66.2 M
2018 Q1 119 34.8 M $170 M
2017 Q4 121 32.5 M $197 M
2017 Q3 135 32.1 M $251 M
2017 Q2 127 31.5 M $266 M
2017 Q1 119 30.1 M $199 M
2016 Q4 123 28.2 M $225 M
2016 Q3 72 21.2 M $141 M
2016 Q2 42 19.3 M $69.4 M
2016 Q1 42 19.1 M $62.5 M
2015 Q4 42 18.7 M $55.5 M
2015 Q3 46 18.8 M $55.7 M
2015 Q2 47 18.5 M $64.4 M
2015 Q1 51 18.3 M $76.5 M
2014 Q4 53 17.7 M $66.7 M
2014 Q3 41 16.8 M $55.7 M
2014 Q2 41 17.9 M $51.8 M
2014 Q1 38 11.2 M $31.5 M