Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| CYANOTECH CORPCYAN · Entity 8431 | Chief Scientific Officer | July 29, 2025 | July 31, 2025 |
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.
CYANOTECH CORP
Report date July 29, 2025 · Filed July 31, 2025
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 146,697 |
Ending reported balance
After 2025-07-29 transaction · row 2
2 source rows · reconciled sequenceRow 1 · 2025-07-29 · Exercise / conversion · Acquired 1,577 · Balance 147,289 F1: Represents the conversion upon vesting of restricted stock units into common stock. Row 2 · 2025-07-29 · Tax withholding · Disposed 592 · Balance 146,697 F2: No stock was sold. On July 29, 2025, in connection with the vesting of 1,577 shares of stock, the Company withheld a total of 592 shares to satisfy a payroll tax liability incident to such vesting. |
| Restricted Stock UnitsSEC Table II · derivative / convertible security | Direct | 34 |
Reported balance
After 2025-07-29 transaction · row 4
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 4 · 2025-07-29 · Exercise / conversion · Disposed 1,577 · Balance 34 F3: Each restricted stock unit represents the contingent right to receive one (1) share of Cyanotech Common Stock. F4: The restricted stock units vest as to 34 shares on April 6, 2026, and is subject to the reporting person's continued service with the Company on the vesting date. |
| Common StockSEC Table I · non-derivative | IndirectHeld by spouse | 250 |
Reported balance
Holding disclosure · report date 2025-07-29 · row 3
Holding and transaction disclosures are not merged.
1 source rowRow 3 · Balance 250 |
Filing footnotes · ownership attribution and instrument terms
F1: Represents the conversion upon vesting of restricted stock units into common stock.
F2: No stock was sold. On July 29, 2025, in connection with the vesting of 1,577 shares of stock, the Company withheld a total of 592 shares to satisfy a payroll tax liability incident to such vesting.
F3: Each restricted stock unit represents the contingent right to receive one (1) share of Cyanotech Common Stock.
F4: The restricted stock units vest as to 34 shares on April 6, 2026, and is subject to the reporting person's continued service with the Company on the vesting date.
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 |
|---|---|---|---|---|---|---|
| July 13, 2019 Filed Aug 2, 2019 14:10 UTC | CYANOTECH CORP CYAN · Entity 8431 | Exercise / conversionRestricted Stock Units · Derivative | 737 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-19-015289 · rdgdoc.xml · derivative · entry 4 Cysewski Gerald R · CIK 0001369133 · Director · CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 9,973 Underlying: Common Stock · 9,973 shares Expires not disclosed 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_price: Each restricted stock unit represents the contingent right to receive one (1) share of Cyanotech Common Stock. F2 · derivative.exercise_date: The restricted stock units vest as to 8,334 shares on March 31, 2020; 166 shares on April 5, 2020; 737 shares on July 13, 2020; and 736 shares on July 2021, in each case subject to the reporting person's continued service with the Company on the vesting date. F2 · derivative.expiration_date: The restricted stock units vest as to 8,334 shares on March 31, 2020; 166 shares on April 5, 2020; 737 shares on July 13, 2020; and 736 shares on July 2021, in each case subject to the reporting person's continued service with the Company on the vesting date. Read SEC document |
| July 13, 2019 Filed Aug 2, 2019 14:10 UTC | CYANOTECH CORP CYAN · Entity 8431 | Tax withholdingCommon Stock | 277 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-19-015289 · rdgdoc.xml · nonDerivative · entry 3 Cysewski Gerald R · CIK 0001369133 · Director · CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 131,300 F4 · acquired: No stock was sold. In connection with the vesting of 737 shares of stock, the Company withheld a total of 277 shares to satisfy a payroll tax liability incident to such vesting. Read SEC document |
| July 13, 2019 Filed Aug 2, 2019 14:10 UTC | CYANOTECH CORP CYAN · Entity 8431 | Exercise / conversionCommon Stock | 737 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-19-015289 · rdgdoc.xml · nonDerivative · entry 1 Cysewski Gerald R · CIK 0001369133 · Director · CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 131,577 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 |
| April 05, 2019 Filed Apr 8, 2019 18:44 UTC | CYANOTECH CORP CYAN · Entity 8431 | Exercise / conversionRestricted Stock Units · Derivative | 167 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-19-006761 · rdgdoc.xml · derivative · entry 3 Cysewski Gerald R · CIK 0001369133 · Director · CSO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 10,710 Underlying: Common Stock · 10,710 shares Expires not disclosed 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_price: Each restricted stock unit represents the contingent right to receive one (1) share of Cyanotech Common Stock. F2 · derivative.exercise_date: The restricted stock units vest as to 737 shares on July 13, 2019; 8,334 shares on March 31, 2020; 166 shares on April 5, 2020; 737 shares on July 13, 2020; and 736 shares on July 2021, in each case subject to the reporting person's continued service with the Company on the vesting date. F2 · derivative.expiration_date: The restricted stock units vest as to 737 shares on July 13, 2019; 8,334 shares on March 31, 2020; 166 shares on April 5, 2020; 737 shares on July 13, 2020; and 736 shares on July 2021, in each case subject to the reporting person's continued service with the Company on the vesting date. Read SEC document |
| April 05, 2019 Filed Apr 8, 2019 18:44 UTC | CYANOTECH CORP CYAN · Entity 8431 | Exercise / conversionCommon Stock | 167 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-19-006761 · rdgdoc.xml · nonDerivative · entry 1 Cysewski Gerald R · CIK 0001369133 · Director · CSO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 130,840 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 |
| April 01, 2019 Filed Apr 3, 2019 17:36 UTC | CYANOTECH CORP CYAN · Entity 8431 | Tax withholdingCommon Stock | 3,130 | $3.24 | $10,141.20 |
DisclosureSEC source: 0001437749-19-006498 · rdgdoc.xml · nonDerivative · entry 2 Cysewski Gerald R · CIK 0001369133 · Director · CSO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 130,673 F2 · kind: No stock was sold. In connection with the vesting of 8,333 shares of stock, the Company withheld a total of 3,130 shares to satisfy a payroll tax liability incident to such vesting. Read SEC document |
| April 01, 2019 Filed Apr 3, 2019 17:36 UTC | CYANOTECH CORP CYAN · Entity 8431 | Exercise / conversionCommon Stock | 8,333 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-19-006498 · rdgdoc.xml · nonDerivative · entry 1 Cysewski Gerald R · CIK 0001369133 · Director · CSO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 133,803 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 · kind: Represents the conversion upon vesting of restricted stock units into common stock. Read SEC document |
| March 04, 2019 Filed Mar 5, 2019 19:47 UTC | CYANOTECH CORP CYAN · Entity 8431 | Exercise / conversionCyanotech common stock options · Derivative | 10,000 | $0.00 Strike: $2.08 | $0.00 |
DisclosureSEC source: 0001437749-19-004129 · rdgdoc.xml · derivative · entry 4 Cysewski Gerald R · CIK 0001369133 · Director · CSO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Cyanotech common stock · 10,000 shares Expires 2019-04-29 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. F5 · derivative.exercise_date: Fully exercisable Read SEC document |
| March 04, 2019 Filed Mar 5, 2019 19:47 UTC | CYANOTECH CORP CYAN · Entity 8431 | Exercise / conversionCyanotech common stock | 10,000 | $2.08 | $20,800.00 |
DisclosureSEC source: 0001437749-19-004129 · rdgdoc.xml · nonDerivative · entry 2 Cysewski Gerald R · CIK 0001369133 · Director · CSO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 130,959 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 04, 2019 Filed Mar 5, 2019 19:47 UTC | CYANOTECH CORP CYAN · Entity 8431 | Tax withholdingCyanotech common stock | 5,489 | $4.00 | $21,956.00 |
DisclosureSEC source: 0001437749-19-004129 · rdgdoc.xml · nonDerivative · entry 1 Cysewski Gerald R · CIK 0001369133 · Director · CSO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 125,470 Read SEC document |
| July 13, 2018 Filed Jul 18, 2018 15:00 UTC | CYANOTECH CORP CYAN · Entity 8431 | GrantRestricted stock units · Derivative | 2,210 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-18-013432 · rdgdoc.xml · derivative · entry 3 Cysewski Gerald R · CIK 0001369133 · Director · CSO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,210 Underlying: Cyanotech common stock · 2,210 shares Expires not disclosed F1 · derivative.exercise_price: Each restricted stock unit represents the contingent right to receive one (1) share of Cyanotech common stock. F2 · derivative.exercise_date: The restricted stock units shall vest as to 737 shares on July 13, 2019, 737 shares on July 13, 2020 and 736 shares on July 13, 2021, in each case subject to the reporting person's continued service with Cyanotech on the vesting date. F2 · derivative.expiration_date: The restricted stock units shall vest as to 737 shares on July 13, 2019, 737 shares on July 13, 2020 and 736 shares on July 13, 2021, in each case subject to the reporting person's continued service with Cyanotech on the vesting date. Read SEC document |
| April 05, 2018 Filed Apr 9, 2018 14:53 UTC | CYANOTECH CORP CYAN · Entity 8431 | Exercise / conversionRestricted stock units · Derivative | 167 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-18-006533 · rdgdoc.xml · derivative · entry 4 Cysewski Gerald R · CIK 0001369133 · Director · CSO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 333 Underlying: Cyanotech common stock · 167 shares Expires not disclosed 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_price: Each restricted stock unit represents the contingent right to receive one (1) share of Cyanotech common stock. F2 · derivative.exercise_date: The restricted stock units shall vest as to 167 shares on April 5, 2018, 167 shares on April 5, 2019 and 166 shares on April 5, 2020, in each case subject to the reporting person's continued service with Cyanotech on the vesting date. F2 · derivative.expiration_date: The restricted stock units shall vest as to 167 shares on April 5, 2018, 167 shares on April 5, 2019 and 166 shares on April 5, 2020, in each case subject to the reporting person's continued service with Cyanotech on the vesting date. Read SEC document |
| April 05, 2018 Filed Apr 9, 2018 14:53 UTC | CYANOTECH CORP CYAN · Entity 8431 | Tax withholdingCyanotech common stock | 63 | $5.25 | $330.75 |
DisclosureSEC source: 0001437749-18-006533 · rdgdoc.xml · nonDerivative · entry 2 Cysewski Gerald R · CIK 0001369133 · Director · CSO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 120,959 F5 · kind: The reporting person is reporting the withholding by the issuer of 63 shares of common stock that vested on April 5, 2018 pursuant to the April 5, 2017 RSU grant, but that were not issued in order to satisfy the reporting person's tax withholding obligations in connection with the delivery of the converted common stock to the reporting person as of April 6, 2018. Read SEC document |
| April 05, 2018 Filed Apr 9, 2018 14:53 UTC | CYANOTECH CORP CYAN · Entity 8431 | Exercise / conversionCyanotech common stock | 167 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-18-006533 · rdgdoc.xml · nonDerivative · entry 1 Cysewski Gerald R · CIK 0001369133 · Director · CSO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 121,022 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. F6 · kind: Represents the conversion upon vesting of restricted stock units into common stock. Read SEC document |
| April 02, 2018 Filed Apr 4, 2018 14:11 UTC | CYANOTECH CORP CYAN · Entity 8431 | Exercise / conversionRestricted stock units · Derivative | 8,333 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-18-006320 · rdgdoc.xml · derivative · entry 5 Cysewski Gerald R · CIK 0001369133 · Director · CSO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 16,667 Underlying: Cyanotech common stock · 8,333 shares Expires not disclosed 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_price: Each restricted stock unit represents the contingent right to receive one (1) share of Cyanotech common stock. F3 · derivative.exercise_date: The restricted stock units shall vest as to 8,333 shares on March 31, 2018, 8,333 on March 31, 2019 and 8,334 on March 31, 2020, in each case subject to the reporting person's continued service with Cyanotech on the vesting date. F3 · derivative.expiration_date: The restricted stock units shall vest as to 8,333 shares on March 31, 2018, 8,333 on March 31, 2019 and 8,334 on March 31, 2020, in each case subject to the reporting person's continued service with Cyanotech on the vesting date. Read SEC document |
| April 02, 2018 Filed Apr 4, 2018 14:11 UTC | CYANOTECH CORP CYAN · Entity 8431 | Tax withholdingCyanotech common stock | 3,130 | $5.10 | $15,963.00 |
DisclosureSEC source: 0001437749-18-006320 · rdgdoc.xml · nonDerivative · entry 2 Cysewski Gerald R · CIK 0001369133 · Director · CSO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 120,855 F5 · kind: The reporting person is reporting the withholding by the issuer of 3,130 shares of common stock that vested on March 31, 2018 pursuant to the March 31, 2017 RSU grant, but that were not issued in order to satisfy the reporting persons tax withholding obligations in connection with the delivery of the converted common stock to the reporting person as of April 2, 2018. Read SEC document |
| April 02, 2018 Filed Apr 4, 2018 14:11 UTC | CYANOTECH CORP CYAN · Entity 8431 | Exercise / conversionCyanotech common stock | 8,333 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-18-006320 · rdgdoc.xml · nonDerivative · entry 1 Cysewski Gerald R · CIK 0001369133 · Director · CSO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 123,985 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. F6 · kind: Represents the conversion upon vesting of restricted stock units into common stock. Read SEC document |
| February 21, 2018 Filed Feb 23, 2018 15:55 UTC | CYANOTECH CORP CYAN · Entity 8431 | Exercise / conversionCyanotech common stock options · Derivative | 2,000 | $0.00 Strike: $1.60 | $0.00 |
DisclosureSEC source: 0001437749-18-003225 · rdgdoc.xml · derivative · entry 3 Cysewski Gerald R · CIK 0001369133 · Director · CSO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Cyanotech common stock · 2,000 shares Expires 2018-02-21 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. F4 · derivative.exercise_date: Fully exercisable Read SEC document |
| February 21, 2018 Filed Feb 23, 2018 15:55 UTC | CYANOTECH CORP CYAN · Entity 8431 | Exercise / conversionCyanotech common stock | 2,000 | $1.60 | $3,200.00 |
DisclosureSEC source: 0001437749-18-003225 · rdgdoc.xml · nonDerivative · entry 1 Cysewski Gerald R · CIK 0001369133 · Director · CSO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 115,652 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 |
| April 05, 2017 Filed Apr 6, 2017 16:29 UTC | CYANOTECH CORP CYAN · Entity 8431 | GrantRestricted stock units · Derivative | 500 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-17-006230 · rdgdoc.xml · derivative · entry 3 Cysewski Gerald R · CIK 0001369133 · Director · CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 500 Underlying: Cyanotech common stock · 500 shares Expires not disclosed F1 · derivative.exercise_price: Each restricted stock unit represents the contingent right to receive one (1) share of Cyanotech common stock. F2 · derivative.exercise_date: The restricted stock units shall vest as to 167 shares on April 5, 2018, 167 shares on April 5, 2019 and 166 shares on April 5, 2020, in each case subject to the reporting person's continued service with Cyanotech on the vesting date. F2 · derivative.expiration_date: The restricted stock units shall vest as to 167 shares on April 5, 2018, 167 shares on April 5, 2019 and 166 shares on April 5, 2020, in each case subject to the reporting person's continued service with Cyanotech on the vesting date. Read SEC document |
| March 31, 2017 Filed Apr 5, 2017 20:05 UTC | CYANOTECH CORP CYAN · Entity 8431 | GrantRestricted stock units · Derivative | 22,500 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-17-006180 · rdgdoc.xml · derivative · entry 3 Cysewski Gerald R · CIK 0001369133 · Director · CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 22,500 Underlying: Cyanotech common stock · 22,500 shares Expires not disclosed F1 · derivative.exercise_price: Each restricted stock unit represents the contingent right to receive one (1) share of Cyanotech common stock. F2 · derivative.exercise_date: The restricted stock units shall vest as to 8,333 shares on March 31, 2018, 8,333 shares on March 31, 2019 and 8,334 shares on March 31, 2020, in each case subject to the reporting person's continued service with Cyanotech on the vesting date. F2 · derivative.expiration_date: The restricted stock units shall vest as to 8,333 shares on March 31, 2018, 8,333 shares on March 31, 2019 and 8,334 shares on March 31, 2020, in each case subject to the reporting person's continued service with Cyanotech on the vesting date. Read SEC document |
| March 31, 2017 Filed Apr 5, 2017 20:17 UTC Amendment | CYANOTECH CORP CYAN · Entity 8431 | GrantRestricted stock units · Derivative | 25,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001437749-17-006186 · rdgdoc.xml · derivative · entry 3 Cysewski Gerald R · CIK 0001369133 · Director · CEO 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 25,000 Underlying: Cyanotech common stock · 25,000 shares Expires not disclosed F1 · derivative.exercise_price: Each restricted stock unit represents the contingent right to receive one (1) share of Cyanotech common stock. F2 · derivative.exercise_date: The restricted stock units shall vest as to 8,333 shares on March 31, 2018, 8,333 shares on March 31, 2019 and 8,334 shares on March 31, 2020, in each case subject to the reporting person's continued service with Cyanotech on the vesting date. F2 · derivative.expiration_date: The restricted stock units shall vest as to 8,333 shares on March 31, 2018, 8,333 shares on March 31, 2019 and 8,334 shares on March 31, 2020, in each case subject to the reporting person's continued service with Cyanotech on the vesting date. 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.