On July 16, 2021, Altimar Acquisition Corp. II announced that it had entered into a definitive business combination agreement with Fathom Holdco, LLC to form Fathom Digital Manufacturing Corporation (“Fathom”), a publicly-traded industrial technology company that provides digital manufacturing services focused on prototype development and low volume production for blue chip corporate clients. A copy of the press release announcing the transaction is attached as Exhibit 99.1 hereto and incorporated by reference into this Item 8.01. Pursuant to the proposed business combination (the “Business Combination”), the Company, which currently holds $345 million in cash in trust, will combine with Fathom at an estimated $1.5 billion pro forma equity value. Cash proceeds in connection with the business combination will be funded through a combination of the Company’s cash in trust and a $80 million fully committed, common stock private investment in public equity at $10.00 per share. Also, on July 16, 2021, Fathom Holdco and the Company held a joint investor conference call to discuss the proposed Business Combination. A copy of the presentation that Fathom Holdco and the Company prepared for use in connection with various meetings and conferences with investors is attached as Exhibit 99.2 hereto and incorporated by reference into this Item 8.01.