X0508 4 2025-10-07 0001211583 FENNEC PHARMACEUTICALS INC. FENC 0001319998 Southpoint Capital Advisors LP 1114 AVENUE OF THE AMERICAS, 22ND FLOOR NEW YORK NY 10036 0 0 1 0 0001378377 Southpoint Capital Advisors LLC 1114 AVENUE OF THE AMERICAS, 22ND FLOOR NEW YORK NY 10036 0 0 1 0 0001378376 Southpoint GP, LP 1114 AVENUE OF THE AMERICAS, 22ND FLOOR NEW YORK NY 10036 0 0 1 0 0001378378 Southpoint GP, LLC 1114 AVENUE OF THE AMERICAS, 22ND FLOOR NEW YORK NY 10036 0 0 1 0 0001378379 Clark John Smith II 1114 AVENUE OF THE AMERICAS, 22ND FLOOR NEW YORK NY 10036 0 0 1 0 0 Common Stock 2025-10-07 4 S 0 26900 9.5871 D 4050314 I See Footnote Common Stock 2025-10-08 4 S 0 19605 9.4732 D 4030709 I See Footnote Common Stock 2025-10-09 4 S 0 20609 9.3461 D 4010100 I See Footnote The securities are directly held by Southpoint Master Fund, LP for which Southpoint Capital Advisors LP serves as the investment manager and Southpoint GP, LP serves as the general partner. Southpoint Capital Advisors LLC serves as the general partner of Southpoint Capital Advisors LP and Southpoint GP, LLC serves as the general partner of Southpoint GP, LP. John S. Clark II serves as managing member of both Southpoint Capital Advisors LLC and Southpoint GP, LLC. Each of the Reporting Persons disclaims beneficial ownership of the shares reported herein except to the extent of its or his pecuniary interest therein. The transaction was executed in multiple trades at prices ranging from $9.47 to $9.70. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer. The transaction was executed in multiple trades at prices ranging from $9.31 to $9.61. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer. The transaction was executed in multiple trades at prices ranging from $9.30 to $9.42. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer. s/ John S. Clark II, Southpoint Capital Advisors LP, by Southpoint Capital Advisors LLC, its General Partner, by John S. Clark II, Managing Member 2025-10-09 /s/ John S. Clark II, Southpoint Capital Advisors LLC, by John S. Clark II, Managing Member 2025-10-09 /s/ John S. Clark II, Southpoint GP, LP, by Southpoint GP, LLC, its General Partner, by John S. Clark II, Managing Member 2025-10-09 /s/ John S. Clark II, Southpoint GP, LLC, by John S. Clark II, Managing Member 2025-10-09 /s/ John S. Clark II 2025-10-09