X0202 SCHEDULE 13G/A 0000919574-26-003218 0002115022 XXXXXXXX LIVE 1 Common Shares, no par value 06/30/2026 0001833141 CYBIN INC. 23256X407 100 KING STREET WEST SUITE 5600 TORONTO, ONTARIO A6 1C9 Rule 13d-1(b) Sirenia Capital Management LP b DE 0.00 3029500.00 0.00 3029500.00 3029500.00 N 4.8 IA PN Includes 969,500 Common Shares (as defined in Item 2(a)) issuable upon exercise of warrants. Alex Silverstein b X1 0.00 3029500.00 0.00 3029500.00 3029500.00 N 4.8 HC IN Includes 969,500 Common Shares issuable upon exercise of warrants. CYBIN INC. 100 King Street West, Suite 5600, Toronto, Ontario, Canada M5X 1C9 This statement is filed by: (i) Sirenia Capital Management LP ("Sirenia") with respect to the common shares, no par value ("Common Shares"), of Cybin Inc. (the "Issuer") held by, and issuable upon exercise of warrants held by, investment funds it manages (the "Sirenia Funds"); and (ii) Alex Silverstein ("Mr. Silverstein"), the managing member of Sirenia Capital Management GP LLC, the general partner of Sirenia, with respect to the Common Shares held by, and issuable upon exercise of warrants held by, the Sirenia Funds. The foregoing persons are hereinafter sometimes collectively referred to as the "Reporting Persons." The filing of this statement should not be construed as an admission that any of the foregoing persons or any Reporting Person is, for the purposes of Section 13 of the Securities Exchange Act of 1934, the beneficial owner of the securities reported herein. The address of the principal business office of Sirenia and Mr. Silverstein is 1674 Meridian Avenue, Suite 320, Miami Beach, FL 33139. Sirenia is a Delaware limited partnership. Mr. Silverstein is a United States citizen. N IA HC The information required by Item 4(a) is set forth in Row 9 of the cover page for each of the Reporting Persons and is incorporated herein by reference. The percentage set forth in this Schedule 13G is calculated based upon an aggregate of 61,984,078 Common Shares outstanding as of June 29, 2026, as reported in Exhibit 99.3 attached to the Issuer's Annual Report on Form 40-F for the fiscal year ended March 31, 2026, filed with the Securities and Exchange Commission on June 29, 2026, and assumes the exercise of the warrants held by the Sirenia Funds. 4.8% The information required by Item 4(c)(i) is set forth in Row 5 of the cover page for each of the Reporting Persons and is incorporated herein by reference. The information required by Item 4(c)(ii) is set forth in Row 6 of the cover page for each of the Reporting Persons and is incorporated herein by reference. The information required by Item 4(c)(iii) is set forth in Row 7 of the cover page for each of the Reporting Persons and is incorporated herein by reference. The information required by Item 4(c)(iv) is set forth in Row 8 of the cover page for each of the Reporting Persons and is incorporated herein by reference. N Y N See Item 2(a). N See Item 2(a) and Item 3. Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. Sirenia Capital Management LP /s/ Kolby Loft 08/14/2026 Alex Silverstein /s/ Alex Silverstein 08/14/2026