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person · Reporting owner

Vied David L

Disclosed activity across 1 company

Tapewire entity
75948
SEC CIK
0001632792

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
CYANOTECH CORPCYAN · Entity 8431DirectorAugust 28, 2025September 02, 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 August 28, 2025 · Filed September 02, 2025

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Cyanotech Corporation Common StockSEC Table I · non-derivativeDirect225,138 Reported balance After 2025-08-28 transaction · row 1
1 source row

Row 1 · 2025-08-28 · Grant · Acquired 50,000 · Balance 225,138

Transaction history

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Purchases/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 dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
August 28, 2025 Filed Sep 2, 2025 18:14 UTC CYANOTECH CORP CYAN · Entity 8431 GrantCyanotech Corporation Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001437749-25-028193 · rdgdoc.xml · nonDerivative · entry 1

Vied David L · CIK 0001632792 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 225,138

Read SEC document
September 04, 2024 Filed Sep 5, 2024 20:00 UTC CYANOTECH CORP CYAN · Entity 8431 GrantCyanotech Corporation Common Stock 39,506 $0.00 $0.00
Disclosure

SEC source: 0001437749-24-028580 · rdgdoc.xml · nonDerivative · entry 1

Vied David L · CIK 0001632792 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 175,138

Read SEC document
August 25, 2023 Filed Aug 28, 2023 15:17 UTC CYANOTECH CORP CYAN · Entity 8431 GrantCyanotech Corporation Common Stock 40,506 $0.00 $0.00
Disclosure

SEC source: 0001437749-23-024756 · rdgdoc.xml · nonDerivative · entry 1

Vied David L · CIK 0001632792 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 135,632

Read SEC document
April 03, 2023 Filed Apr 4, 2023 15:29 UTC CYANOTECH CORP CYAN · Entity 8431 GrantCyanotech Corporation Common Stock 9,121 $0.00 $0.00
Disclosure

SEC source: 0001437749-23-009260 · rdgdoc.xml · nonDerivative · entry 1

Vied David L · CIK 0001632792 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 95,126

F1 · acquired: To reduce the Company's ongoing cash expenses, the Nominating and Corporate Governance Committee of the Board of Directors adopted a resolution allowing each director to elect to receive his or her quarterly director fees in the form of restricted stock in lieu of cash. The Reporting Person elected to receive shares of restricted stock in lieu of cash for the third fiscal quarter.

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August 30, 2022 Filed Sep 1, 2022 16:24 UTC CYANOTECH CORP CYAN · Entity 8431 GrantCyanotech Corporation Common Stock 13,061 $0.00 $0.00
Disclosure

SEC source: 0001437749-22-021678 · rdgdoc.xml · nonDerivative · entry 1

Vied David L · CIK 0001632792 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 86,005

Read SEC document
October 18, 2021 Filed Oct 20, 2021 16:10 UTC CYANOTECH CORP CYAN · Entity 8431 GrantCyanotech Corporation Common Stock 11,228 $0.00 $0.00
Disclosure

SEC source: 0001437749-21-023963 · rdgdoc.xml · nonDerivative · entry 1

Vied David L · CIK 0001632792 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 72,944

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August 27, 2020 Filed Aug 31, 2020 15:48 UTC CYANOTECH CORP CYAN · Entity 8431 GrantCyanotech Corporation Common Stock 13,445 $0.00 $0.00
Disclosure

SEC source: 0001437749-20-019018 · rdgdoc.xml · nonDerivative · entry 1

Vied David L · CIK 0001632792 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,716

Read SEC document
February 18, 2020 Filed Feb 20, 2020 19:25 UTC CYANOTECH CORP CYAN · Entity 8431 GrantCyanotech Corporation Common Stock 15,166 $0.00 $0.00
Disclosure

SEC source: 0001437749-20-003218 · rdgdoc.xml · nonDerivative · entry 1

Vied David L · CIK 0001632792 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,271

Read SEC document
August 27, 2018 Filed Aug 29, 2018 17:28 UTC CYANOTECH CORP CYAN · Entity 8431 GrantCyanotech Corporation Common Stock 10,556 $0.00 $0.00
Disclosure

SEC source: 0001437749-18-016356 · rdgdoc.xml · nonDerivative · entry 1

Vied David L · CIK 0001632792 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,105

Read SEC document
August 24, 2017 Filed Aug 25, 2017 16:22 UTC CYANOTECH CORP CYAN · Entity 8431 GrantCyanotech Corporation Common Stock 17,021 $0.00 $0.00
Disclosure

SEC source: 0001437749-17-015328 · rdgdoc.xml · nonDerivative · entry 1

Vied David L · CIK 0001632792 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,903

Read SEC document
August 24, 2017 Filed Oct 31, 2017 14:55 UTC Amendment CYANOTECH CORP CYAN · Entity 8431 GrantCyanotech Corporation Common Stock 16,667 $0.00 $0.00
Disclosure

SEC source: 0001437749-17-017946 · rdgdoc.xml · nonDerivative · entry 1

Vied David L · CIK 0001632792 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,549

F1 · shares: Due to a clerical error, the number of shares acquired was previously misreported as 17,021 shares in the reporting person's Form 4 filed on August 25, 2017.

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.