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person · Reporting owner

Zheng Yenyou

Disclosed activity across 2 companies

Tapewire entity
53071
SEC CIK
0001330748

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Mars Acquisition Corp.MARXU · Entity 94443DirectorFebruary 13, 2023February 14, 2023
Stablecoin Development CorpSDEV · Entity 7283DirectorMarch 31, 2026April 09, 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.

Mars Acquisition Corp.

Report date February 13, 2023 · Filed February 14, 2023

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Ordinary ShareSEC Table I · non-derivativeDirect51,750 Reported balance Holding disclosure · report date 2023-02-13 · row 1 Holding and transaction disclosures are not merged.
1 source row

Row 1 · Balance 51,750

Stablecoin Development Corp

Report date March 31, 2026 · Filed April 09, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect140,000 Reported balance After 2026-03-31 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2026-03-31 · Grant · Acquired 140,000 · Balance 140,000

F1: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units will vest in equal one-third installments, with the first installment vesting on February 16, 2027, the second installment vesting on January 16, 2028, and the third installment vesting on January 16, 2029.

Filing footnotes · ownership attribution and instrument terms

F1: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units will vest in equal one-third installments, with the first installment vesting on February 16, 2027, the second installment vesting on January 16, 2028, and the third installment vesting on January 16, 2029.

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
March 31, 2026 Filed Apr 9, 2026 20:50 UTC Stablecoin Development Corp SDEV · Entity 7283 GrantRestricted Stock Units · Derivative 140,000 $0.00 $0.00
Disclosure

SEC source: 0001437749-26-011913 · rdgdoc.xml · derivative · entry 1

Zheng Yenyou · CIK 0001330748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 140,000

Underlying: Common Stock · 140,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units will vest in equal one-third installments, with the first installment vesting on February 16, 2027, the second installment vesting on January 16, 2028, and the third installment vesting on January 16, 2029.

F1 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units will vest in equal one-third installments, with the first installment vesting on February 16, 2027, the second installment vesting on January 16, 2028, and the third installment vesting on January 16, 2029.

F1 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units will vest in equal one-third installments, with the first installment vesting on February 16, 2027, the second installment vesting on January 16, 2028, and the third installment vesting on January 16, 2029.

Read SEC document
May 28, 2024 Filed May 31, 2024 01:22 UTC Stablecoin Development Corp NBY · Entity 7283 GrantRestricted Stock Units · Derivative 30,000 $0.00 $0.00
Disclosure

SEC source: 0001437749-24-018798 · rdgdoc.xml · derivative · entry 1

Zheng Yenyou · CIK 0001330748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,000

Underlying: Common Stock · 30,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units vest on the one year anniversary of the date of grant. The number of restricted stock units and related contingent right to receive common stock does not give effect to the 1-for-35 reverse stock split the issuer effected on May 30, 2024.

F1 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units vest on the one year anniversary of the date of grant. The number of restricted stock units and related contingent right to receive common stock does not give effect to the 1-for-35 reverse stock split the issuer effected on May 30, 2024.

F1 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units vest on the one year anniversary of the date of grant. The number of restricted stock units and related contingent right to receive common stock does not give effect to the 1-for-35 reverse stock split the issuer effected on May 30, 2024.

Read SEC document
June 09, 2023 Filed Jun 13, 2023 21:03 UTC Stablecoin Development Corp NBY · Entity 7283 GrantRestricted Stock Units · Derivative 858 $0.00 $0.00
Disclosure

SEC source: 0001437749-23-017289 · rdgdoc.xml · derivative · entry 1

Zheng Yenyou · CIK 0001330748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 858

Underlying: Common Stock · 858 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units vest on the one year anniversary of the date of grant.

F1 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units vest on the one year anniversary of the date of grant.

F1 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units vest on the one year anniversary of the date of grant.

Read SEC document
May 11, 2023 Filed May 15, 2023 22:54 UTC Stablecoin Development Corp NBY · Entity 7283 Exercise / conversionRestricted Stock Units · Derivative 858 $0.00 $0.00
Disclosure

SEC source: 0001437749-23-014704 · rdgdoc.xml · derivative · entry 2

Zheng Yenyou · CIK 0001330748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 858 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.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units vested on the one year anniversary of the date of grant.

F1 · shares: On November 15, 2022, NovaBay Pharmaceuticals, Inc. effected a 1-for-35 reverse stock split of its common stock, which is reflected in the number of shares.

F2 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units vested on the one year anniversary of the date of grant.

F2 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units vested on the one year anniversary of the date of grant.

F1 · derivative.underlying_shares: On November 15, 2022, NovaBay Pharmaceuticals, Inc. effected a 1-for-35 reverse stock split of its common stock, which is reflected in the number of shares.

Read SEC document
May 11, 2023 Filed May 15, 2023 22:54 UTC Stablecoin Development Corp NBY · Entity 7283 Exercise / conversionCommon Stock 858 Not disclosed Not disclosed
Disclosure

SEC source: 0001437749-23-014704 · rdgdoc.xml · nonDerivative · entry 1

Zheng Yenyou · CIK 0001330748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,716

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 · shares: On November 15, 2022, NovaBay Pharmaceuticals, Inc. effected a 1-for-35 reverse stock split of its common stock, which is reflected in the number of shares.

F2 · price: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units vested on the one year anniversary of the date of grant.

F1 · balance_after: On November 15, 2022, NovaBay Pharmaceuticals, Inc. effected a 1-for-35 reverse stock split of its common stock, which is reflected in the number of shares.

Read SEC document
May 21, 2022 Filed May 24, 2022 23:31 UTC Stablecoin Development Corp NBY · Entity 7283 Exercise / conversionRestricted Stock Units · Derivative 30,000 $0.00 $0.00
Disclosure

SEC source: 0001437749-22-013460 · rdgdoc.xml · derivative · entry 2

Zheng Yenyou · CIK 0001330748 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,000

Underlying: Common Stock · 30,000 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 a contingent right to receive one share of the issuer's common stock. The restricted stock units vested on the one year anniversary of the date of grant.

F1 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units vested on the one year anniversary of the date of grant.

F1 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units vested on the one year anniversary of the date of grant.

Read SEC document
May 21, 2022 Filed May 24, 2022 23:31 UTC Stablecoin Development Corp NBY · Entity 7283 Exercise / conversionCommon Stock 30,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001437749-22-013460 · rdgdoc.xml · nonDerivative · entry 1

Zheng Yenyou · CIK 0001330748 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,000

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 · price: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units vested on the one year anniversary of the date of grant.

Read SEC document
May 11, 2022 Filed May 14, 2022 00:32 UTC Stablecoin Development Corp NBY · Entity 7283 GrantRestricted Stock Units · Derivative 30,000 $0.00 $0.00
Disclosure

SEC source: 0001437749-22-012435 · rdgdoc.xml · derivative · entry 1

Zheng Yenyou · CIK 0001330748 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,000

Underlying: Common Stock · 30,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units vest on the one year anniversary of the date of grant.

F1 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units vest on the one year anniversary of the date of grant.

F1 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units vest on the one year anniversary of the date of grant.

Read SEC document
May 21, 2021 Filed May 25, 2021 20:46 UTC Stablecoin Development Corp NBY · Entity 7283 GrantRestricted Stock Unit · Derivative 30,000 $0.00 $0.00
Disclosure

SEC source: 0001437749-21-013293 · rdgdoc.xml · derivative · entry 1

Zheng Yenyou · CIK 0001330748 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,000

Underlying: Common stock · 30,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units vest on the one year anniversary of the date of grant.

F1 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units vest on the one year anniversary of the date of grant.

F1 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. The restricted stock units vest on the one year anniversary of the date of grant.

Read SEC document
May 26, 2020 Filed May 29, 2020 21:03 UTC Stablecoin Development Corp NBY · Entity 7283 GrantStock option (right to buy) · Derivative 20,000 $0.00 Strike: $0.89 $0.00
Disclosure

SEC source: 0001437749-20-012076 · rdgdoc.xml · derivative · entry 1

Zheng Yenyou · CIK 0001330748 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common stock · 20,000 shares

Expires 2030-05-26

F1 · derivative.exercise_date: The stock options will vest in 12 equal monthly installments beginning on the grant 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.