X0202 SCHEDULE 13D/A 0002025889 XXXXXXXX LIVE 5 Common Shares, without par value 03/24/2026 false 0001722606 59124U605 Metalla Royalty & Streaming Ltd.

543 Granville Street Suite 501 Vancouver A1 V6C 1X8

Tether Global Investments Fund 4420 4621 1793 Final Av. La Revolucion, Edif. Centro Corporativo Presidente Plaza, Nivel 12 San Salvador H3 00000 Daniel Woodard (212) 547-5400 McDermott Will & Schulte LLP One Vanderbilt Avenue New York NY 10017 0002025889 N Tether Global Investments Fund, S.I.C.A.F., S.A. OO Y H3 0.00 9266571.00 0.00 9266571.00 9266571.00 N 10.0 CO Note in relation to Items 8, 10 and 11: Includes 9,266,571 common shares, no par value ("Common Shares") of Metalla Royalty & Streaming Ltd. held by Tether International, S.A. de C.V., a controlled subsidiary of Tether Global Investments Fund, S.I.C.A.F., S.A. Note in relation to Item 13: This percentage is calculated based upon 92,561,386 Common Shares outstanding on November 12, 2025, as reported in the Issuer's Form 6-K filed with the Securities and Exchange Commission on November 13, 2025. Y Tether International, S.A. de C.V. WC N H3 0.00 9266571.00 0.00 9266571.00 9266571.00 N 10.0 CO Note in relation to Item 13: This percentage is calculated based upon 92,561,386 Common Shares outstanding on November 12, 2025, as reported in the Issuer's Form 6-K filed with the Securities and Exchange Commission on November 13, 2025. 0002049832 N Tether Investments, S.A. de C.V. WC N H3 0.00 0.00 0.00 0.00 0.00 N 0 CO 0002050373 N Giancarlo Devasini OO N L6 0.00 9266571.00 0.00 9266571.00 9266571.00 N 10.0 IN Note in relation to Items 8, 10 and 11: Includes 9,266,571 Common Shares held by Tether International, S.A. de C.V. a controlled subsidiary of Tether Global Investments Fund, S.I.C.A.F., S.A. Mr. Devasini has a greater than 50% voting interest in Tether Global Investments Fund, S.I.C.A.F., S.A. The reporting person disclaims beneficial ownership of these shares except to the extent of the reporting person's pecuniary interest. Note in relation to Item 13: This percentage is calculated based upon 92,561,386 Common Shares outstanding on November 12, 2025, as reported in the Issuer's Form 6-K filed with the Securities and Exchange Commission on November 13, 2025. Common Shares, without par value Metalla Royalty & Streaming Ltd. 543 Granville Street Suite 501 Vancouver A1 V6C 1X8 This statement on Schedule 13D amends the Schedule 13D of Tether Holdings, S.A. de C.V., an El Salvador entity, Tether Investments, S.A. de C.V., an El Salvador entity ("Tether Investments"), and Giancarlo Devasini that was originally filed with the Securities and Exchange Commission (the "SEC") on October 24, 2025, as amended by Amendment No. 1 filed on December 9, 2025, Amendment No. 2 filed on January 9, 2026, Amendment No. 3 filed on February 4, 2026 and Amendment No. 4 filed on March 12, 2026 (as amended, the "Schedule 13D") with respect to the common shares, without par value ("Common Shares") of Metalla Royalty & Streaming Ltd., a Canadian corporation (the "Issuer"). This amendment to the Schedule 13D is being filed by Tether Global Investments Fund, S.I.C.A.F., S.A. (f/k/a Tether Holdings, S.A. de C.V.), an El Salvador entity, Tether International, S.A. de C.V., an El Salvador entity, Tether Investments, and Giancarlo Devasini (collectively, the "Reporting Persons") and constitutes Amendment No. 5 to the Schedule 13D. Capitalized terms used but not defined herein have the meanings given to such terms in the Schedule 13D. Except as set forth herein, the Schedule13D is unmodified. Item 4 is hereby amended and supplemented to add the following: Effective on March 24, 2026, Tether Investments transferred 9,266,571 Common Shares to Tether International, S.A. de C.V. (the "Transfer"). The Transfer resulted in no change in the aggregate number of Common Shares beneficially owned by the Reporting Persons. The Reporting Persons beneficially own an aggregate of 9,266,571 Common Shares, representing 10.0% of the outstanding Common Shares. This percentage is calculated based on 92,561,386 Common Shares outstanding on November 12, 2025, as reported in the Issuer's Form 6-K filed with the Securities and Exchange Commission on November 13, 2025. Each of the Reporting Persons has voting and dispositive power with respect to the beneficially owned 9,266,571 Common Shares. Except for the Transfer of Common Shares, no transactions in the Common Shares were effected by the Reporting Persons since the Reporting Persons' most recent filing on March 12, 2026. None. Not applicable. Schedule A Executive Officers and Directors 99.1 Agreement of filing persons relating to filing of joint statement per Rule 13d-1(k). Tether Global Investments Fund, S.I.C.A.F., S.A. /s/ Omar Rossi 03/26/2026 Tether International, S.A. de C.V. /s/ Giancarlo Devasini 03/26/2026 Tether Investments, S.A. de C.V. /s/ Giancarlo Devasini 03/26/2026 Giancarlo Devasini /s/ Giancarlo Devasini 03/26/2026