Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| HUDSON TECHNOLOGIES INC /NYHDSN · Entity 6244 | Director | June 17, 2026 | June 22, 2026 |
| Tailwind 2.0 Acquisition Corp.TDWDU · Entity 6174 | Director | November 06, 2025 | November 07, 2025 |
| Tailwind International Acquisition Corp.TWNI · Entity 113882 | Director | February 18, 2021 | February 19, 2021 |
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 June 17, 2026 · Filed June 22, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 12,484 |
Reported balance
After 2026-06-17 transaction · row 1
1 source rowRow 1 · 2026-06-17 · Grant · Acquired 3,219 · Balance 12,484 |
| Stock OptionsSEC Table II · derivative / convertible security · Conversion / exercise price $5.63 · Expires 2029-06-17 | Direct | 15,360 |
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 15,360 · Balance 15,360 |
Tailwind 2.0 Acquisition Corp.
Report date November 06, 2025 · Filed November 07, 2025
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Class B Ordinary SharesSEC Table II · derivative / convertible security | Direct | Not disclosed |
Reported balance
Holding disclosure · report date 2025-11-06 · row 1
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 1 · Balance Not disclosed F1: Represents Class B ordinary shares which will automatically convert into Class A ordinary shares concurrently with or immediately following the consummation of the initial business combination of Tailwind 2.0 Acquisition Corp., or earlier at the option of the holder on a one-for-one basis, subject to adjustment, as described in the Registration Statement on Form S-1 (File No. 333-289546) related to the Issuer's initial public offering. |
Filing footnotes · ownership attribution and instrument terms
F1: Represents Class B ordinary shares which will automatically convert into Class A ordinary shares concurrently with or immediately following the consummation of the initial business combination of Tailwind 2.0 Acquisition Corp., or earlier at the option of the holder on a one-for-one basis, subject to adjustment, as described in the Registration Statement on Form S-1 (File No. 333-289546) related to the Issuer's initial public offering.
Tailwind International Acquisition Corp.
Report date February 18, 2021 · Filed February 19, 2021
This filing explicitly reported no securities owned.
Past disclosures · reporting ended (1)
No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.
Nuburu, Inc.
Report date January 31, 2023 · Filed February 07, 2023
Section 16 reporting ended · disclosed 2023-02-07. Current position is not established by this disclosure.
No balance rows disclosed in this filing.
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 13:21 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | GrantStock Options · Derivative | 15,360 | $0.00 Strike: $5.63 | $0.00 |
DisclosureSEC source: 0000925528-26-000064 · form4.xml · derivative · entry 2 Sheriff Alan · CIK 0001823076 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 15,360 Underlying: Common Stock · 15,360 shares Expires 2029-06-17 Read SEC document |
| June 17, 2026 Filed Jun 22, 2026 13:21 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | GrantCommon Stock | 3,219 | $0.00 | $0.00 |
DisclosureSEC source: 0000925528-26-000064 · form4.xml · nonDerivative · entry 1 Sheriff Alan · CIK 0001823076 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 12,484 Read SEC document |
| May 13, 2026 Filed May 15, 2026 16:38 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | PurchaseCommon Stock | 5,200 | $4.88 | $25,350.00 |
DisclosureSEC source: 0000925528-26-000037 · form4.xml · nonDerivative · entry 1 Sheriff Alan · CIK 0001823076 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 9,265 Read SEC document |
| April 10, 2026 Filed Apr 14, 2026 16:00 UTC | HUDSON TECHNOLOGIES INC /NY HDSN · Entity 6244 | GrantCommon Stock | 4,065 | $0.00 | $0.00 |
DisclosureSEC source: 0000925528-26-000018 · form4.xml · nonDerivative · entry 1 Sheriff Alan · CIK 0001823076 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,065 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.