Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| HUDSON TECHNOLOGIES INC /NYHDSN · Entity 6244 | Director · President and CEO | May 13, 2026 | May 15, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
HUDSON TECHNOLOGIES INC /NY
Report date May 13, 2026 · Filed May 15, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | IndirectBy the Gaglione Trust | 5,000 |
Reported balance
After 2026-05-13 transaction · row 1
Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source rowRow 1 · 2026-05-13 · Purchase · Acquired 5,000 · Balance 5,000 |
| Common StockSEC Table I · non-derivative | Direct | 37,504 |
Reported balance
Holding disclosure · report date 2026-05-13 · row 2
Holding and transaction disclosures are not merged.
1 source rowRow 2 · Balance 37,504 |
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| May 13, 2026 Filed May 15, 2026 16:36 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | PurchaseCommon Stock | 5,000 | $4.90 | $24,475.00 |
DisclosureSEC source: 0000925528-26-000034 · form4.xml · nonDerivative · entry 1 Gaglione Kenneth · CIK 0001824089 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Indirect · By the Gaglione Trust Disclosed balance after: 5,000 Read SEC document |
| November 24, 2025 Filed Nov 25, 2025 21:23 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | GrantStock Option · Derivative | 216,309 | $0.00 Strike: $6.70 | $0.00 |
DisclosureSEC source: 0000925528-25-000013 · form4.xml · derivative · entry 1 Gaglione Kenneth · CIK 0001824089 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 216,309 Underlying: Common Stock · 216,309 shares Expires 2030-11-24 F1 · derivative.exercise_date: Option vests 50% on first anniversary of date of grant and 50% on second anniversary of date of grant. Read SEC document |
| September 12, 2023 Filed Sep 14, 2023 20:04 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | Exercise / conversionStock Option · Derivative | 33,379 | $0.00 Strike: $10.09 | $0.00 |
DisclosureSEC source: 0001062993-23-018017 · form4.xml · derivative · entry 12 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 33,378 Underlying: Common Stock · 33,379 shares Expires 2026-03-01 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| September 12, 2023 Filed Sep 14, 2023 20:04 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | Exercise / conversionStock Option · Derivative | 23,902 | $0.00 Strike: $3.81 | $0.00 |
DisclosureSEC source: 0001062993-23-018017 · form4.xml · derivative · entry 11 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 23,902 shares Expires 2027-02-24 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| September 12, 2023 Filed Sep 14, 2023 20:04 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | Exercise / conversionStock Option · Derivative | 23,810 | $0.00 Strike: $1.60 | $0.00 |
DisclosureSEC source: 0001062993-23-018017 · form4.xml · derivative · entry 10 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 23,810 shares Expires 2026-03-12 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| September 12, 2023 Filed Sep 14, 2023 20:04 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | Exercise / conversionStock Option · Derivative | 90,135 | $0.00 Strike: $1.23 | $0.00 |
DisclosureSEC source: 0001062993-23-018017 · form4.xml · derivative · entry 9 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 90,135 shares Expires 2025-09-14 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| September 12, 2023 Filed Sep 14, 2023 20:04 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | Tax withholdingCommon Stock | 30,124 | $12.14 | $365,705.36 |
DisclosureSEC source: 0001062993-23-018017 · form4.xml · nonDerivative · entry 8 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 82,354 Read SEC document |
| September 12, 2023 Filed Sep 14, 2023 20:04 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | Exercise / conversionCommon Stock | 33,379 | $10.09 | $336,794.11 |
DisclosureSEC source: 0001062993-23-018017 · form4.xml · nonDerivative · entry 7 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 112,478 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| September 12, 2023 Filed Sep 14, 2023 20:04 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | Tax withholdingCommon Stock | 14,431 | $12.14 | $175,192.34 |
DisclosureSEC source: 0001062993-23-018017 · form4.xml · nonDerivative · entry 6 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 79,099 Read SEC document |
| September 12, 2023 Filed Sep 14, 2023 20:04 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | Exercise / conversionCommon Stock | 23,902 | $3.81 | $91,066.62 |
DisclosureSEC source: 0001062993-23-018017 · form4.xml · nonDerivative · entry 5 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 93,530 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| September 12, 2023 Filed Sep 14, 2023 20:04 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | Tax withholdingCommon Stock | 12,144 | $12.14 | $147,428.16 |
DisclosureSEC source: 0001062993-23-018017 · form4.xml · nonDerivative · entry 4 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 69,628 Read SEC document |
| September 12, 2023 Filed Sep 14, 2023 20:04 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | Exercise / conversionCommon Stock | 23,810 | $1.60 | $38,096.00 |
DisclosureSEC source: 0001062993-23-018017 · form4.xml · nonDerivative · entry 3 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 81,772 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| September 12, 2023 Filed Sep 14, 2023 20:04 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | Tax withholdingCommon Stock | 44,774 | $12.14 | $543,556.36 |
DisclosureSEC source: 0001062993-23-018017 · form4.xml · nonDerivative · entry 2 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 57,962 Read SEC document |
| September 12, 2023 Filed Sep 14, 2023 20:04 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | Exercise / conversionCommon Stock | 90,135 | $1.23 | $110,866.05 |
DisclosureSEC source: 0001062993-23-018017 · form4.xml · nonDerivative · entry 1 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 102,736 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| March 01, 2023 Filed Mar 3, 2023 19:44 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | GrantStock Option · Derivative | 66,757 | $0.00 Strike: $10.09 | $0.00 |
DisclosureSEC source: 0001062993-23-005817 · form4.xml · derivative · entry 1 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 66,757 Underlying: Common Stock · 66,757 shares Expires 2026-03-01 F1 · derivative.exercise_date: (1) Options vest 50% on date of grant and 50% on first anniversary of date of grant Read SEC document |
| December 13, 2022 Filed Dec 14, 2022 19:45 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | Exercise / conversionStock Option · Derivative | 23,902 | $0.00 Strike: $3.81 | $0.00 |
DisclosureSEC source: 0001062993-22-023883 · form4.xml · derivative · entry 4 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 23,902 Underlying: Common Stock · 23,902 shares Expires 2027-02-24 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_date: Remaining options vest on February 24, 2023. Read SEC document |
| December 13, 2022 Filed Dec 14, 2022 19:45 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | Tax withholdingCommon Stock | 14,508 | $11.74 | $170,323.92 |
DisclosureSEC source: 0001062993-22-023883 · form4.xml · nonDerivative · entry 3 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 12,601 Read SEC document |
| December 13, 2022 Filed Dec 14, 2022 19:45 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | Exercise / conversionCommon Stock | 23,902 | $3.81 | $91,066.62 |
DisclosureSEC source: 0001062993-22-023883 · form4.xml · nonDerivative · entry 2 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 27,109 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| December 12, 2022 Filed Dec 14, 2022 19:45 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | SaleCommon Stock | 19,000 | $11.53 | $219,070.00 |
DisclosureSEC source: 0001062993-22-023883 · form4.xml · nonDerivative · entry 1 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 3,207 Read SEC document |
| February 24, 2022 Filed Feb 28, 2022 16:28 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | GrantStock Option · Derivative | 47,804 | $0.00 Strike: $3.81 | $0.00 |
DisclosureSEC source: 0001062993-22-005830 · form4.xml · derivative · entry 1 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 47,804 Underlying: Common Stock · 47,804 shares Expires 2027-02-24 F1 · derivative.exercise_date: Options vest 50% on date of grant and 50% on first anniversary of date of grant. Read SEC document |
| December 09, 2021 Filed Dec 13, 2021 19:35 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | Exercise / conversionStock Option · Derivative | 45,000 | $0.00 Strike: $1.23 | $0.00 |
DisclosureSEC source: 0001062993-21-012726 · form4.xml · derivative · entry 3 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 90,135 Underlying: Common Stock · 45,000 shares Expires 2025-09-14 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| December 09, 2021 Filed Dec 13, 2021 19:35 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | Tax withholdingCommon Stock | 25,293 | $4.21 | $106,483.53 |
DisclosureSEC source: 0001062993-21-012726 · form4.xml · nonDerivative · entry 2 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 22,207 Read SEC document |
| December 09, 2021 Filed Dec 13, 2021 19:35 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | Exercise / conversionCommon Stock | 45,000 | $1.23 | $55,350.00 |
DisclosureSEC source: 0001062993-21-012726 · form4.xml · nonDerivative · entry 1 Gaglione Kenneth · CIK 0001824089 · VP-Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 47,500 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| March 12, 2021 Filed Mar 16, 2021 13:00 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | GrantStock Option · Derivative | 23,810 | $0.00 Strike: $1.60 | $0.00 |
DisclosureSEC source: 0001449374-21-000006 · edgar.xml · derivative · entry 1 Gaglione Kenneth · CIK 0001824089 · VP - Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 23,810 Underlying: Common Stock · 23,810 shares Expires 2026-03-12 Read SEC document |
| September 14, 2020 Filed Sep 16, 2020 17:49 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | GrantStock Option · Derivative | 135,135 | $0.00 Strike: $1.23 | $0.00 |
DisclosureSEC source: 0001449374-20-000025 · edgar.xml · derivative · entry 1 Gaglione Kenneth · CIK 0001824089 · VP - Operations 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 135,135 Underlying: Common Stock · 135,135 shares Expires 2025-09-14 F1 · derivative.exercise_date: Exercisable one-half on date of grant and one-half on first anniversary of date of grant. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.