Exhibit 99.1
SECURITIES PURCHASE AGREEMENT
This SECURITIES PURCHASE AGREEMENT (this Agreement) is dated as of May 10, 2024, by and among iTeos
Therapeutics, Inc., a Delaware corporation (the Company), and each of the entities listed on Exhibit A attached to this Agreement (each, including its successors and assigns, an Investor and together, the
Investors).
WHEREAS, the Company desires to sell to the Investors, and each Investor desires to purchase from
the Company, severally and not jointly, upon the terms and subject to the conditions stated in this Agreement, (A) shares (the Shares) of the Companys common stock, par value $0.001 per share (the Common
Stock), and/or (B) the pre-funded warrants to purchase shares of Common Stock (the Pre-Funded Warrants) substantially in the form
attached hereto as Exhibit B; and
NOW THEREFORE, in consideration of the mutual agreements and covenants herein contained,
the Company and each Investor, severally and not jointly, agree as follows:
1. Definitions. As used in this Agreement, the
following terms shall have the following respective meanings:
Board of Directors means the board of directors of the
Company.
Business Day means any day except any Saturday, any Sunday, any day which is a federal legal holiday in the
United States or any day on which banking institutions in the State of New York are authorized or required by law or other governmental action to close.
Common Stock Equivalents means any securities of the Company that would entitle the holder thereof to acquire at any time
Common Stock, including, without limitation, any debt, preferred stock, rights, options, warrants or other instrument that is at any time convertible into or exchangeable for, or otherwise entitles the holder thereof to receive, Common Stock.
2. Purchase and Sale of Securities.
2.1 Purchase and Sale. On the Closing Date, upon the terms and subject to the conditions set forth herein, the Company agrees to sell,
and the Investors, severally and not jointly, agree to purchase, an aggregate of $119,994,270.72 of Securities (as defined below), with a purchase price per Share equal to $17.50 and a purchase price per
Pre-Funded Warrant equal to $17.499, which is $17.50 less an exercise price per share equal to $0.001 (as may be adjusted from time to time pursuant to the terms of the
Pre-Funded Warrant). Subject to and upon the terms and conditions set forth in this Agreement, at the Closing, the Company shall issue and sell to each Investor, and each Investor, severally and not jointly,
shall purchase from the Company, (A) that number of Shares equal to (x) the dollar amount set forth opposite such Investors name on Exhibit A under the heading Share Purchase Price divided by (y) the Per Share
Price, rounded down to the nearest whole share, and/or (B) a Pre-Funded Warrant exercisable for a number of shares of Common Stock equal to (x) the dollar amount set forth opposite such
Investors name on Exhibit A under the heading Pre-Funded Warrant Purchase Price divided by (y) the Per Pre-Funded