Please wait



Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Checkbox not checked   Rule 13d-1(b)
Checkbox not checked   Rule 13d-1(c)
Checkbox not checked   Rule 13d-1(d)


SCHEDULE 13D/A 0001132716-25-000017 0001132716 XXXXXXXX LIVE 3 Common Shares, no par value 10/22/2025 false 0001907184 28474P706 Electra Battery Materials Corp SUITE 3200, BAY ADELAIDE CENTRE SUITE 3200, BAY ADELAIDE CENTRE TORONTO A6 M5H 0B4 Charles Mathys (312) 525-4114 One North Wacker Drive Chicago IL 60606 0001132716 N OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) b OO N DE 0.00 9278996.00 0.00 9278996.00 9278996.00 N 9.9 IA (1) Shared voting and dispositive power does not include an aggregate of 12,429,327 Common Shares (as defined herein) obtainable upon the exercise of the Warrants (as defined herein) owned by the Reporting Person, which are subject to the Beneficial Ownership Blockers (as defined herein). (2) Percent of class is calculated based on 93,652,239 Common Shares outstanding as of October 22, 2025, as disclosed in Exhibit 99.8 to the Issuer's Report of Foreign Private Issuer on Form 6-K filed with the Securities and Exchange Commission (the "SEC") on October 24, 2025. Common Shares, no par value Electra Battery Materials Corp SUITE 3200, BAY ADELAIDE CENTRE SUITE 3200, BAY ADELAIDE CENTRE TORONTO A6 M5H 0B4 This Amendment No. 3 (the "Amendment") amends and supplements the Schedule 13D filed by the Reporting Person on July 25, 2025 (as amended and supplemented by Amendment No. 1 and Amendment No. 2, the "Original Schedule 13D") with respect to the Common Shares. Capitalized terms used in this Amendment and not otherwise defined shall have the same meanings ascribed to them in the Original Schedule 13D. Except as specifically provided herein, this Amendment does not modify any of the information previously reported in the Original Schedule 13D. Item 3 of the Original Schedule 13D is hereby amended and supplemented by including the information set forth in Item 4 of this Amendment. See attached Exhibit 'Items_1_through_7_Full_Details' for complete description. Item 5(a) of the Original Schedule 13D is hereby amended and supplemented by including the information set forth in Item 4 to this Amendment and in rows (7) through (10) on the cover page of this Amendment. The information contained in rows (7) through (10) of the cover page to this Amendment is incorporated herein by reference in its entirety. Except as described in Item 4 of this Amendment, the Reporting Person has not effected transactions in the Common Shares since the filing of Amendment No. 2 on September 18, 2025. Concurrently with the consummation of the transactions listed above on the Closing Date, any "group" that may be deemed to have existed between the Reporting Person and any of the other Named Holders has been terminated. The Reporting Person has not previously reported its ownership of Common Shares, other than as part of any "group" that may have been deemed to have existed, and after the consummation of the transaction listed above. The Reporting Person holds the Common Shares it beneficially owns without the purpose or effect of changing or influencing the control of the Issuer nor in connection with or as a participant in any transaction having that purpose or effect. Accordingly, once this Amendment is filed to report the termination of any "group" that may have been deemed to exist, the Reporting Person expects to report its own beneficial ownership of Common Shares on Schedule 13G going forward. Item 6 of the Original Schedule 13D is hereby amended and supplemented by including the information set forth in Item 4 of this Amendment. See attached Exhibit 'Items_1_through_7_Full_Details' for complete description. OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) /s/ Charles Mathys Charles Mathys / Chief Compliance Officer - O'Connor 10/24/2025