13D Filings
Stablecoin Development Corp
NBY
Amendment
Ownership

7.40%

Total Shares

4,000,000

Issuer CIK

1389545

Event Date

Jun 14, 2026

Accepted

Jul 22, 2026, 11:06 AM

Reporting Persons (1)
NameType% of ClassAggregateSole VotingShared Voting
Sky Frontier Foundation
Other
7.40%4,000,00000
Disclosure Items (3)

Security Title

Common Stock, $0.01 par value per share

Issuer Name

Stablecoin Development Corp

Issuer Address

2000 Powell Street, Emeryville, CA, 94608

As described in this Amendment, the number of outstanding shares of Common Stock increased to 50,449,780 as of June 15, 2026. As a consequence, the first tranche of 4,000,000 shares underlying the Warrant, which became exercisable on July 16, 2026, no longer exceeds the Beneficial Ownership Limitation. The Reporting Person has not exercised any portion of the Warrant, does not currently hold any shares of Common Stock, and has not changed the investment intent described in the Original Schedule 13D.

Percentage of Class

As of June 15, 2026, the Reporting Person may be deemed to beneficially own 4,000,000 shares of Common Stock, representing approximately 7.4% of the outstanding Common Stock. The percentage is calculated based on 50,449,780 shares of Common Stock outstanding as of June 15, 2026, as reported in the Issuer's Current Report on Form 8-K filed on June 17, 2026, plus the 4,000,000 shares issuable to the Reporting Person upon exercise of the first tranche of the Warrant within 60 days. Because 4,000,000 shares no longer exceed the Beneficial Ownership Limitation, the full first tranche is included in the Reporting Person's beneficial ownership. The Reporting Person disclaims beneficial ownership of any shares of Common Stock issuable upon exercise of the Warrant in excess of the Beneficial Ownership Limitation, including the second and third tranches, which are not exercisable within 60 days.

Number of Shares

Upon and following exercise of the Warrant, the Reporting Person will have sole voting power and sole dispositive power with respect to the 4,000,000 shares issuable upon such exercise. The Reporting Person does not currently have voting or dispositive power over any shares of Common Stock.

Transactions

Except as described in this Amendment, the Reporting Person has not effected any transaction in the Common Stock during the past 60 days. The change in the Reporting Person's beneficial ownership percentage resulted solely from the increase in the Issuer's outstanding shares of Common Stock described in this Amendment, and not from any acquisition or disposition of securities by the Reporting Person.

Shareholders

Not applicable.

Date of 5% Ownership

Not applicable.

Stablecoin Development Corp — Schedule 13D | 13D Filings