Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| CLEAN HARBORS INCCLH · Entity 3318 | President Env Sales & Service | August 21, 2023 | August 22, 2023 |
| HUDSON TECHNOLOGIES INC /NYHDSN · Entity 6244 | Director | June 17, 2026 | June 22, 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.
CLEAN HARBORS INC
Report date August 21, 2023 · Filed August 22, 2023
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 17,163 |
Reported balance
Holding disclosure · report date 2023-08-21 · row 1
Holding and transaction disclosures are not merged.
1 source rowRow 1 · Balance 17,163 |
HUDSON TECHNOLOGIES INC /NY
Report date June 17, 2026 · Filed June 22, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 34,476 |
Reported balance
After 2026-06-17 transaction · row 1
1 source rowRow 1 · 2026-06-17 · Grant · Acquired 8,881 · Balance 34,476 |
| Stock OptionsSEC Table II · derivative / convertible security · Conversion / exercise price $5.63 · Expires 2029-06-17 | Direct | 21,186 |
Reported balance
After 2026-06-17 transaction · row 2
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 2 · 2026-06-17 · Grant · Acquired 21,186 · Balance 21,186 |
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 |
|---|---|---|---|---|---|---|
| June 17, 2026 Filed Jun 22, 2026 13:18 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | GrantStock Options · Derivative | 21,186 | $0.00 Strike: $5.63 | $0.00 |
DisclosureSEC source: 0000925528-26-000061 · form4.xml · derivative · entry 2 Mansy Loan Nguyen · CIK 0001948762 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 21,186 Underlying: Common Stock · 21,186 shares Expires 2029-06-17 Read SEC document |
| June 17, 2026 Filed Jun 22, 2026 13:18 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | GrantCommon Stock | 8,881 | $0.00 | $0.00 |
DisclosureSEC source: 0000925528-26-000061 · form4.xml · nonDerivative · entry 1 Mansy Loan Nguyen · CIK 0001948762 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 34,476 Read SEC document |
| May 14, 2026 Filed May 15, 2026 17:25 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | PurchaseCommon Stock | 1,400 | $4.97 | $6,958.00 |
DisclosureSEC source: 0000925528-26-000047 · form4.xml · nonDerivative · entry 2 Mansy Loan Nguyen · CIK 0001948762 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 25,595 Read SEC document |
| May 14, 2026 Filed May 15, 2026 17:25 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | PurchaseCommon Stock | 3,600 | $4.96 | $17,856.00 |
DisclosureSEC source: 0000925528-26-000047 · form4.xml · nonDerivative · entry 1 Mansy Loan Nguyen · CIK 0001948762 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 24,195 Read SEC document |
| June 18, 2025 Filed Jun 20, 2025 14:56 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | GrantStock Options · Derivative | 13,698 | $0.00 Strike: $7.86 | $0.00 |
DisclosureSEC source: 0001062993-25-011954 · form4.xml · derivative · entry 2 Mansy Loan Nguyen · CIK 0001948762 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 13,698 Underlying: Common Stock · 13,698 shares Expires 2028-06-18 Read SEC document |
| June 18, 2025 Filed Jun 20, 2025 14:56 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | GrantCommon Stock | 6,365 | $0.00 | $0.00 |
DisclosureSEC source: 0001062993-25-011954 · form4.xml · nonDerivative · entry 1 Mansy Loan Nguyen · CIK 0001948762 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 20,595 Read SEC document |
| June 19, 2024 Filed Jun 21, 2024 19:16 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | GrantStock Option · Derivative | 14,493 | $0.00 Strike: $8.94 | $0.00 |
DisclosureSEC source: 0001062993-24-012877 · form4.xml · derivative · entry 2 Mansy Loan Nguyen · CIK 0001948762 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 14,493 Underlying: Common Stock · 14,493 shares Expires 2027-06-19 Read SEC document |
| June 19, 2024 Filed Jun 21, 2024 19:16 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | GrantCommon Stock | 5,593 | $0.00 | $0.00 |
DisclosureSEC source: 0001062993-24-012877 · form4.xml · nonDerivative · entry 1 Mansy Loan Nguyen · CIK 0001948762 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 14,230 Read SEC document |
| June 14, 2023 Filed Jun 16, 2023 17:27 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | GrantStock Option · Derivative | 11,737 | $0.00 Strike: $9.55 | $0.00 |
DisclosureSEC source: 0001062993-23-013720 · form4.xml · derivative · entry 2 Mansy Loan Nguyen · CIK 0001948762 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,737 Underlying: Common Stock · 11,737 shares Expires 2026-06-14 Read SEC document |
| June 14, 2023 Filed Jun 16, 2023 17:27 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | GrantCommon Stock | 5,236 | $0.00 | $0.00 |
DisclosureSEC source: 0001062993-23-013720 · form4.xml · nonDerivative · entry 1 Mansy Loan Nguyen · CIK 0001948762 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 8,637 Read SEC document |
| September 30, 2022 Filed Oct 4, 2022 13:26 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | GrantCommon Stock | 3,401 | $0.00 | $0.00 |
DisclosureSEC source: 0001062993-22-020225 · form4.xml · nonDerivative · entry 1 Mansy Loan Nguyen · CIK 0001948762 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 3,401 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.