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SCHEDULE 13D Filed 2026-05-27 Event 2026-05-17 SEC 0001437749-26-018547 →

Sky Frontier Foundation Stablecoin Development Corp SDEV

Stake: 9.90% Shares: 3,009,502 CUSIP: 66987P508 Class: Common Stock, $0.01 par value per share

Item 4 — Purpose of Transaction

The Reporting Person acquired a pre-funded warrant (the "Warrant") to purchase 100,000,000 shares of Common Stock (20,000,000 shares as adjusted for the Issuer's 1-for-5 reverse stock split effective February 20, 2026). The Reporting Person did not acquire any shares of Common Stock in the transaction and does not currently hold any shares of Common Stock. The Warrant becomes exercisable in tranches as follows: 20% on July 16, 2026, an additional 30% on October 16, 2026 and the remaining 50% on January 16, 2027. Exercise of the Warrant is subject to a beneficial ownership limitation (the "Beneficial Ownership Limitation") that prohibits the Reporting Person from exercising the Warrant to the extent that, after giving effect to the exercise, the Reporting Person, together with its affiliates and any other persons whose beneficial ownership would be aggregated with the Reporting Person's for purposes of Section 13(d) of the Securities Exchange Act of 1934, would beneficially own in excess of 9.99% of the outstanding Common Stock. The Reporting Person may not increase the Beneficial Ownership Limitation above 9.99%. In connection with the SPA, the Reporting Person, the Issuer, and the other purchasers also entered into an Investors' Rights Agreement (the "IRA"). The Reporting Person acquired the Warrant for long-term investment and to support the Issuer's adoption of, and integration with, the Sky protocol. The Reporting Person's investment is governance-focused and is not intended to result in a change of control of the Issuer or in any extraordinary corporate transaction involving the Issuer or any of its subsidiaries. Under the IRA, the Reporting Person has the right to nominate one director to the Issuer's board of directors for so long as the Reporting Person beneficially owns at least 5% of the outstanding Common Stock. Also under the IRA, for a period of 24 months following January 16, 2026, the Reporting Person has the right to consent to any material amendment, modification, addition, revocation or change to the Issuer's Digital Asset Strategy, for so long as the Reporting Person continues to hold at least 50% of the Warrant or the Common Stock originally acquired by it. Except as set forth in this statement, the Reporting Person has no present plans or proposals that relate to or would result in any of the actions specified in clauses (a) through (j) of Item 4 of Schedule 13D. The Reporting Person reserves the right to change its plans or intentions and to take any action permitted by applicable law with respect to its investment in the Issuer.

Cross-References

Insider Activity (last 365d)
6 transactions
3 buys · 0 sales · 0 awards/exercises
Issuer Cluster
15 13D/G filings on this issuer
14 other filings besides this one
Filer Track Record
2 filings by this filer
1 other filing in the data moat
Short Interest · settle 2026-07-15
DTC 1.00
546,728 shares short · +103.0% vs prior

Post-Filing Returns · since 2026-05-17 on SDEV

+1 day
0.0%
+5 days
0.0%
+30 days
0.0%
+60 days
-0.8%
+90 days
+180 days

Anchor price 1.25 on closest trading day on/after 2026-05-17. Source: Yahoo Finance daily adj_close (split + dividend adjusted).

Form 4 Insider Transactions · last 365d

DateInsiderRoleTypeSharesPriceValue
2025-10-21 Kazley Michael John director, officer, 10%+ owner C 11,361,216
2025-10-21 Framework Ventures IV L.P. 10%+ owner C 11,361,216
2025-10-21 R01 Fund LP director, officer, 10%+ owner C 11,361,216
2025-10-16 R01 Fund LP director, officer, 10%+ owner Buy 11,332,020 $0.01 $113K
2025-10-16 Framework Ventures IV L.P. 10%+ owner Buy 11,332,020 $0.01 $113K
2025-10-16 Kazley Michael John director, officer, 10%+ owner Buy 11,332,020 $0.01 $113K

Other 13D/G Filings on Stablecoin Development Corp

FiledFormFilerStakeShares
2026-07-24 SCHEDULE 13D/A Framework Ventures IV L.P. 46.60% 47,723,141 view →
2026-07-24 SCHEDULE 13D/A R01 Fund LP 52.40% 49,508,502 view →
2026-07-22 SCHEDULE 13D/A Sky Frontier Foundation 4,000,000 view →
2026-06-17 SCHEDULE 13D/A Framework Ventures IV L.P. 45.90% 32,690,366 view →
2026-06-17 SCHEDULE 13D/A R01 Fund LP 49.80% 33,404,510 view →
2026-05-22 SCHEDULE 13G Tether Global Investments Fund, S.I.C.A.F., S.A. view →
2026-05-19 SCHEDULE 13D/A R01 Fund LP 33,429,230 view →
2026-05-19 SCHEDULE 13D/A Framework Ventures IV L.P. 32,715,086 view →
2026-01-29 SCHEDULE Lazar David E. 4.99% 6,388,000 view →
2026-01-21 SCHEDULE Framework Ventures IV L.P. 45.00% 56,806,080 view →
2026-01-21 SCHEDULE R01 Fund LP 45.00% 56,806,080 view →
2020-08-24 SC Fu Jian Ping view →
2019-04-16 SC OP Financial Ltd view →
2019-04-16 SC Fu Jian Ping view →

Other Filings by Sky Frontier Foundation

FiledFormIssuerStakeShares
2026-07-22 SCHEDULE 13D/A Stablecoin Development Corp 4,000,000 view →

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