SEC Form 4 · accession 0000921895-26-001823
XOMA Royalty Corp · XOMA
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owners
BIOTECHNOLOGY VALUE FUND L P
10% Owner
BVF PARTNERS L P/IL
10% Owner
Inc/il Bvf
10% Owner
BIOTECHNOLOGY VALUE FUND II LP
10% Owner
Mark N Lampert
10% Owner
BVF Partners OS Ltd.
Other
BVF I GP LLC
10% Owner
BVF II GP LLC
10% Owner
BVF GP HOLDINGS LLC
10% Owner
Period of report
Jul 14, 2026
Accepted (ET)
Jul 16, 2026 · 5:02 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0000791908
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock, $0.0075 par value per shareF1,F7,F3 | Jul 14, 2026 | U | 3,635,758 | — | D | 0 | D | |
| Common Stock, $0.0075 par value per shareF1,F7,F4 | Jul 14, 2026 | U | 2,773,545 | — | D | 0 | D | |
| Common Stock, $0.0075 par value per shareF1,F7,F5 | Jul 14, 2026 | U | 412,000 | — | D | 0 | D | |
| Common Stock, $0.0075 par value per shareF1,F7,F6 | Jul 14, 2026 | U | 772,000 | — | D | 0 | I | See footnote |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1This Form 4 is filed jointly by Biotechnology Value Fund, L.P. ("BVF"), Biotechnology Value Fund II, L.P. ("BVF2"), Biotechnology Value Trading Fund OS LP ("Trading Fund OS"), BVF Partners OS Ltd. ("Partners OS"), BVF I GP LLC ("BVF GP"), BVF II GP LLC ("BVF2 GP"), BVF GP Holdings LLC ("BVF GPH"), BVF Partners L.P. ("Partners"), BVF Inc. and Mark N. Lampert (collectively, the "Reporting Persons"). Each of the Reporting Persons is a member of a Section 13(d) group that collectively owns more than 10% of the Issuer's outstanding shares of Common Stock. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein.
- F2This Form 4 reports securities disposed of pursuant to an Agreement and Plan of Merger, dated April 27, 2026, as amended by Amendment No. 1 to the Agreement and Plan of Merger on May 16, 2026 (as amended, the "Merger Agreement"), by and among the Issuer, Ligand Pharmaceuticals Incorporated ("Parent"), Flex Merger Sub, Inc., a wholly owned subsidiary of Parent ("Merger Sub"), and XOMA Royalty Holdings Corporation ("HoldCo"), pursuant to which, among other things, the Parent acquired all of the outstanding shares of the common stock of the Issuer, effective July 14, 2026 (the "Merger").
- F3Securities owned directly by BVF. As the general partner of BVF, BVF GP may be deemed to beneficially own the securities owned directly by BVF. As the sole member of BVF GP, BVF GPH may be deemed to beneficially own the securities owned directly by BVF. As the investment manager of BVF, Partners may be deemed to beneficially own the securities owned directly by BVF. As the investment adviser and general partner of Partners, BVF Inc. may be deemed to beneficially own the securities owned directly by BVF. As a director and officer of BVF Inc., Mr. Lampert may be deemed to beneficially own the securities owned directly by BVF.
- F4Securities owned directly by BVF2. As the general partner of BVF2, BVF2 GP may be deemed to beneficially own the securities owned directly by BVF2. As the sole member of BVF2 GP, BVF GPH may be deemed to beneficially own the securities owned directly by BVF2. As the investment manager of BVF2, Partners may be deemed to beneficially own the securities owned directly by BVF2. As the investment adviser and general partner of Partners, BVF Inc. may be deemed to beneficially own the securities owned directly by BVF2. As a director and officer of BVF Inc., Mr. Lampert may be deemed to beneficially own the securities owned directly by BVF2.
- F5Securities owned directly by Trading Fund OS. As the general partner of Trading Fund OS, Partners OS may be deemed to beneficially own the securities owned directly by Trading Fund OS. As the investment manager of Trading Fund OS and the sole member of Partners OS, Partners may be deemed to beneficially own the securities owned directly by Trading Fund OS. As the investment adviser and general partner of Partners, BVF Inc. may be deemed to beneficially own the securities owned directly by Trading Fund OS. As a director and officer of BVF Inc., Mr. Lampert may be deemed to beneficially own the securities owned directly by Trading Fund OS.
- F6Securities held in certain Partners managed accounts (the "Partners Managed Accounts"). Partners, as the investment manager of the Partners Managed Accounts, may be deemed to beneficially own the securities held by the Partners Managed Accounts. As the investment adviser and general partner of Partners, BVF Inc. may be deemed to beneficially own the securities held by the Partners Managed Accounts. As a director and officer of BVF Inc., Mr. Lampert may be deemed to beneficially own the securities held by the Partners Managed Accounts.
- F7The Reporting Persons received the following in exchange for each share of the Issuer's common stock disposed of in connection with the Merger: $39.00 in cash per share of common stock and an amount of contingent value rights per share of common stock for potential cash payments.