Company: XOMAP
Filing Date: 2025-10-03
Form Type: 424B5
Source: 0001193125-25-230383
Chunk: 28

Company: XOMA Royalty Corp
Filing Date: 2025-10-03
Form: 424B5
Chunk 28
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binations with interested stockholders” statutes (NRS 78.411 through 78.444, inclusive) provide that specified types of business “combinations” between certain Nevada corporations and any person deemed to be an “interested stockholder” of the corporation are prohibited for a period of two years following the date on which the person first became an interested stockholder unless:

| • |     | prior to the date the person first became an interested stockholder, the board of directors approved either the 
 combination or the transaction which resulted in the stockholder becoming an interested stockholder; or         |

| • |     | at or after the time on which such stockholder becomes an interested stockholder, the combination is approved by                                      
 the board of directors and 60% of the corporation’s voting power not beneficially owned by the interested stockholder, its affiliates and associates. |

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Furthermore, in the absence of prior approval, even after the two-year period described above, a combination
remains prohibited for another two years unless (i) it is approved by the board of directors, the disinterested stockholders or a majority of the outstanding voting power not beneficially owned by the interested stockholder and its affiliates
and associates or (ii) the terms of the combination satisfy certain fair value requirements. However, these statutes do not apply to any combination of a corporation and an interested stockholder after the expiration of four years after the
person first became an interested stockholder.

An “interested stockholder” is any person who is (1) the beneficial owner, directly or
indirectly, of 10% or more of the voting power of the outstanding voting shares of the corporation, or (2) an affiliate or associate of the corporation and at any time within the two previous years was the beneficial owner, directly or
indirectly, of 10% or more of the voting power of the then-outstanding shares of the corporation. The definition of the term “combination” is sufficiently broad to cover most significant transactions between a corporation and an
“interested stockholder”, including mergers and consolidations, sales, leases, exchanges, pledges, transfers or other dispositions of assets with a certain market value, earning power or net income, and share issuances with a certain
market value.

These statutes generally apply to Nevada corporations with 200 or more stockholders of record. At this time, we do not have 200 or more
stockholders of record. A Nevada corporation may elect in its articles of