X0202 SCHEDULE 13D/A 0002028474 XXXXXXXX LIVE 6 Common Stock, $0.01 par value 07/18/2026 false 0001389545 66987P508 Stablecoin Development Corp

222 LAKEVIEW AVE, SUITE 800 WEST PALM BEACH FL 33401

FRAMEWORK VENTURES IV L.P. 628-233-0357 600 Montgomery Street, Floor 42 San Francisco CA 94111 0002028474 N Framework Ventures IV L.P. a WC N DE 0.00 47723141.00 0.00 47723141.00 47723141.00 N 46.6 PN This Amendment No. 6 is being filed to update the beneficial ownership of the Reporting Persons to reflect the vesting of the second tranche of pre-funded warrants to purchase 15,032,775 shares, representing 30% of the total number of shares issuable upon the exercise of the pre-funded warrants issued by the Issuer to Framework Ventures IV L.P. and other investors on January 16, 2026 (the "Pre-Funded Warrants"). The percentage calculation set forth above is based on 50,449,780 shares of Common Stock outstanding as of June 15, 2026 and also contemplates the vesting of an aggregate of 26,839,986 shares of Common Stock underlying the Pre-Funded Warrants issued by the Issuer to R01 Fund LP, R01 Capital LLC, R01 Capital Manager LLC and Michael Kazley, each of which or whom are considered to be in a group with Framework Ventures IV L.P., Framework Ventures IV GP LLC, Framework Ventures Management LLC, Vance Spencer and Michael Ernest Anderson for purposes of Rule 13d-3 under the Exchange Act. The reported securities may also be deemed to be beneficially owned by Framework Ventures IV GP LLC, Framework Ventures Management LLC, Vance Spencer and Michael Ernest Anderson, each of which or whom disclaims beneficial ownership of such shares, except to the extent of its or his pecuniary interest therein. 0002091751 N Framework Ventures Management LLC a WC N DE 0.00 47723141.00 0.00 47723141.00 47723141.00 N 46.6 OO This Amendment No. 6 is being filed to update the beneficial ownership of the Reporting Persons to reflect the vesting of the second tranche of pre-funded warrants to purchase 15,032,775 shares, representing 30% of the total number of shares issuable upon the exercise of the pre-funded warrants issued by the Issuer to Framework Ventures IV L.P. and other investors on January 16, 2026 (the "Pre-Funded Warrants"). The percentage calculation set forth above is based on 50,449,780 shares of Common Stock outstanding as of June 15, 2026 and also contemplates the vesting of an aggregate of 26,839,986 shares of Common Stock underlying the Pre-Funded Warrants issued by the Issuer to R01 Fund LP, R01 Capital LLC, R01 Capital Manager LLC and Michael Kazley, each of which or whom are considered to be in a group with Framework Ventures IV L.P., Framework Ventures IV GP LLC, Framework Ventures Management LLC, Vance Spencer and Michael Ernest Anderson for purposes of Rule 13d-3 under the Exchange Act. The reported securities may also be deemed to be beneficially owned by Framework Ventures IV GP LLC, Framework Ventures Management LLC, Vance Spencer and Michael Ernest Anderson, each of which or whom disclaims beneficial ownership of such shares, except to the extent of its or his pecuniary interest therein. 0002092591 N Framework Ventures IV GP LLC a WC N DE 0.00 47723141.00 0.00 47723141.00 47723141.00 N 46.6 OO This Amendment No. 6 is being filed to update the beneficial ownership of the Reporting Persons to reflect the vesting of the second tranche of pre-funded warrants to purchase 15,032,775 shares, representing 30% of the total number of shares issuable upon the exercise of the pre-funded warrants issued by the Issuer to Framework Ventures IV L.P. and other investors on January 16, 2026 (the "Pre-Funded Warrants"). The percentage calculation set forth above is based on 50,449,780 shares of Common Stock outstanding as of June 15, 2026 and also contemplates the vesting of an aggregate of 26,839,986 shares of Common Stock underlying the Pre-Funded Warrants issued by the Issuer to R01 Fund LP, R01 Capital LLC, R01 Capital Manager LLC and Michael Kazley, each of which or whom are considered to be in a group with Framework Ventures IV L.P., Framework Ventures IV GP LLC, Framework Ventures Management LLC, Vance Spencer and Michael Ernest Anderson for purposes of Rule 13d-3 under the Exchange Act. The reported securities may also be deemed to be beneficially owned by Framework Ventures IV GP LLC, Framework Ventures Management LLC, Vance Spencer and Michael Ernest Anderson, each of which or whom disclaims beneficial ownership of such shares, except to the extent of its or his pecuniary interest therein. 0002092030 N Spencer Vance a WC N X1 0.00 47723141.00 0.00 47723141.00 47723141.00 N 46.6 IN This Amendment No. 6 is being filed to update the beneficial ownership of the Reporting Persons to reflect the vesting of the second tranche of pre-funded warrants to purchase 15,032,775 shares, representing 30% of the total number of shares issuable upon the exercise of the pre-funded warrants issued by the Issuer to Framework Ventures IV L.P. and other investors on January 16, 2026 (the "Pre-Funded Warrants"). The percentage calculation set forth above is based on 50,449,780 shares of Common Stock outstanding as of June 15, 2026 and also contemplates the vesting of an aggregate of 26,839,986 shares of Common Stock underlying the Pre-Funded Warrants issued by the Issuer to R01 Fund LP, R01 Capital LLC, R01 Capital Manager LLC and Michael Kazley, each of which or whom are considered to be in a group with Framework Ventures IV L.P., Framework Ventures IV GP LLC, Framework Ventures Management LLC, Vance Spencer and Michael Ernest Anderson for purposes of Rule 13d-3 under the Exchange Act. The reported securities may also be deemed to be beneficially owned by Framework Ventures IV GP LLC, Framework Ventures Management LLC, Vance Spencer and Michael Ernest Anderson, each of which or whom disclaims beneficial ownership of such shares, except to the extent of its or his pecuniary interest therein. 0002093174 N Anderson Michael Ernest a WC N X1 0.00 47723141.00 0.00 47723141.00 47723141.00 N 46.6 IN This Amendment No. 6 is being filed to update the beneficial ownership of the Reporting Persons to reflect the vesting of the second tranche of pre-funded warrants to purchase 15,032,775 shares, representing 30% of the total number of shares issuable upon the exercise of the pre-funded warrants issued by the Issuer to Framework Ventures IV L.P. and other investors on January 16, 2026 (the "Pre-Funded Warrants"). The percentage calculation set forth above is based on 50,449,780 shares of Common Stock outstanding as of June 15, 2026 and also contemplates the vesting of an aggregate of 26,839,986 shares of Common Stock underlying the Pre-Funded Warrants issued by the Issuer to R01 Fund LP, R01 Capital LLC, R01 Capital Manager LLC and Michael Kazley, each of which or whom are considered to be in a group with Framework Ventures IV L.P., Framework Ventures IV GP LLC, Framework Ventures Management LLC, Vance Spencer and Michael Ernest Anderson for purposes of Rule 13d-3 under the Exchange Act. The reported securities may also be deemed to be beneficially owned by Framework Ventures IV GP LLC, Framework Ventures Management LLC, Vance Spencer and Michael Ernest Anderson, each of which or whom disclaims beneficial ownership of such shares, except to the extent of its or his pecuniary interest therein. Common Stock, $0.01 par value Stablecoin Development Corp 222 LAKEVIEW AVE, SUITE 800 WEST PALM BEACH FL 33401 Explanatory Note: This Amendment No. 6 amends and supplements the statement on Schedule 13D originally filed with the Securities and Exchange Commission (the "SEC") on October 15, 2025, as amended and supplemented by that certain Amendment No. 1 to Schedule 13D filed on October 25, 2025, as amended and supplemented by that certain Amendment No. 2 to Schedule 13D filed on January 21, 2026, as amended and supplemented by that certain Amendment No. 3 to Schedule 13D filed on April 30, 2026, and as amended and supplemented by that certain Amendment No. 4 to Schedule 13D filed on May 19, 2026, and as amended and supplemented by that certain Amendment No. 5 to Schedule 13D filed on June 17, 2026 (as amended, the "Statement") by Framework Ventures IV L.P. ("Framework") with respect to the Common Stock of Stablecoin Development Corporation (the "Company"). This Amendment No. 6 is being filed to update the beneficial ownership of the Reporting Persons to reflect the vesting of the second tranche of pre-funded warrants to purchase 15,032,775 shares, representing 30% of the total number of shares issuable upon the exercise of the pre-funded warrants issued by the Issuer to Framework Ventures IV L.P. and other investors on January 16, 2026 (the "Pre-Funded Warrants"). Unless otherwise defined herein, capitalized terms used in this Amendment No. 6 shall have the meanings ascribed to them in the Statement. Unless amended or otherwise stated below, the information for Framework in the Statement remains unchanged. The Reporting Persons beneficially own an aggregate of 47,723,141 shares of Common Stock (the "Subject Shares"). The Subject Shares represent approximately 46.7% of the outstanding shares of Common Stock. This percentage calculation is based on 50,449,780 shares of Common Stock outstanding as of June 15, 2026 and also contemplates the vesting of an aggregate of 26,839,986 shares of Common Stock underlying the Pre-Funded Warrants issued by the Issuer to R01 Fund LP, R01 Capital LLC, R01 Capital Manager LLC and Michael Kazley, each of which or whom are considered to be in a "group" with the Reporting Persons for the purposes of Rule 13d-3 under the Exchange Act. 1. Sole power to vote or direct vote: 0.00 2. Shared power to vote or direct vote: 47,723,141.00 shares of Common Stock 3. Sole power to dispose or direct the disposition: 0.00 4. Shared power to dispose or direct the disposition: 47,723,141.00 shares of Common Stock Except as described in this Schedule 13D, none of the Reporting Persons have effected any transaction in the shares of Common Stock during the past 60 days. No person other than the Reporting Persons is known to have the right to receive, or the power to direct the receipt of dividends from, or proceeds from the sale of, the Subject Shares. Not applicable. Framework Ventures IV L.P. /s/ Michael Ernest Anderson 07/24/2026 Framework Ventures Management LLC /s/ Michael Ernest Anderson 07/24/2026 Framework Ventures IV GP LLC /s/ Michael Ernest Anderson 07/24/2026 Spencer Vance /s/ Vance Spencer 07/24/2026 Anderson Michael Ernest /s/ Michael Ernest Anderson 07/24/2026