T.Rowe Price Active Crypto ETF S-1A

Exhibit 1.3

SEED CAPITAL SUBSCRIPTION AGREEMENT

This Seed Capital Subscription Agreement is entered into as of March 31, 2026, between T. Rowe Price Active Crypto ETF, a statutory trust organized and existing under the laws of Delaware (the “Trust”), and T. Rowe Price Associates, Inc. a corporation organized and existing under the laws of Maryland (the “Seed Capital Investor”).

WHEREAS, T. Rowe Price Sponsor LLC (“Sponsor”), a Delaware limited liability company, has sponsored the formation of the Trust;

WHEREAS, Sponsor believes that sufficient capital is essential to the success of the Trust business and the Seed Capital Investor is willing to provide the capital, subject to the terms and conditions set forth herein, and acquire shares of the Trust, subject to the terms and conditions of its offering documents;

NOW, THEREFORE, in consideration of the mutual agreements, undertakings, and covenants set forth in this Agreement and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged by each party, the Parties agree as follows:

Subject to the terms and conditions of this Agreement, the Trust agrees to sell to the Seed Capital Investor, and the Seed Capital Investor agrees to purchase from the Trust, shares of beneficial interest, representing fractional undivided beneficial interests in the net assets of the Trust (the “Shares”), at a price per Share and purchase price as set forth in Schedule A (such Shares being referred to herein as the “Seed Shares”).

The Seed Capital Investor hereby represents and warrants to, and covenants for the benefit of, the Trust that:

The Sponsor, on its own behalf and in its capacity as Sponsor of the Trust, represents and warrants to the Seed Capital Investor that:

The Sponsor will promptly advise the Seed Capital Investor when (a) any amendment to the registration statement has been filed or becomes effective and to furnish the Seed Capital Investor, upon written request, with copies thereof or (b) of the issuance by the SEC of any stop order or of any order preventing or suspending the use of any prospectus, of the suspension of the qualification of the Shares comprising the Seed Shares for offering or sale in any jurisdiction, of the initiation or threatening of any proceeding for any such purpose.

[Signature Page Follows]

IN WITNESS WHEREOF, the parties have executed this Agreement as of the date first above written.

T. Rowe Price Associates, Inc., as Seed Capital Investor

/s/ Francine Rosenberger

Name: Francine Rosenberger

Title: Vice President

T. Rowe Price Active Crypto ETF, by T. Rowe Price Sponsor LLC, as Sponsor

/s/ Alan Dupski

Name: Alan Dupski

Title: Chief Financial Officer of Sponsor, Principal Accounting Officer of Trust

SCHEDULE A