UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 24, 2021

ALTIMAR ACQUISITION CORPORATION

(Exact name of registrant as specified in its charter)

(212) 287-6767

Registrant’s telephone number, including area code

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation to the registrant under any of the following provisions:

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.

Emerging growth company  ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

On February 23, 2021, GCDM Holdings, LP, GCDM Holdings GP, LLC, GIM Holdings, LP, GIM Holdings GP Ltd., GGP Holdings, LP and GGP Holdings GP, LLC initiated a lawsuit in the Supreme Court of the State of New York against Dyal Capital Partners Mirror Aggregator (A) LP, Dyal Capital Partners Mirror Aggregator (B-GIM) LP, Dyal Capital Partners Mirror Aggregator (B-GGP) LP, NB Dyal IV Advisors LLC, NB Dyal GP Holdings LLC, Neuberger Berman Group LLC and NB Alternatives Advisers LLC. The complaint in the case (No. 651226/2021) seeks, among other things, to enjoin the transactions contemplated by the Business Combination Agreement announced by Altimar Acquisition Corporation (“Altimar”) on December 23, 2020. Altimar understands that Neuberger and Dyal believe that the allegations in the complaint are without merit and intend to vigorously oppose the lawsuit.

Additional Information and Where to Find It

Altimar has filed a registration statement on Form S-4 with the Securities and Exchange Commission (the “SEC”), which includes a proxy statement and a prospectus of Altimar, and each party will file other documents with the SEC regarding the proposed transaction. A definitive proxy statement/prospectus will also be sent to the stockholders of Altimar, seeking any required stockholder approval. Before making any voting or investment decision, investors and security holders of Altimar are urged to carefully read the entire registration statement and proxy statement/prospectus and any other relevant documents filed with the SEC, as well as any amendments or supplements to these documents, because they will contain important information about the proposed transaction. The documents filed by Altimar with the SEC may be obtained free of charge at the SEC’s website at www.sec.gov. In addition, the documents filed by Altimar may be obtained free of charge from Altimar at www.altimarspac.com. Alternatively, these documents, when available, can be obtained free of charge from Altimar upon written request to Altimar Acquisition Corp., 40 West 57^th Street, New York, New York 10019, Attn: Secretary, or by calling 212-287-6767.

Forward Looking Statements

Certain statements made in this Current Report on Form 8-K, and oral statements made from time to time by representatives of Altimar are “forward looking statements” within the meaning of the “safe harbor” provisions of the United States Private Securities Litigation Reform Act of 1995. Statements regarding the proposed business combination and expectations regarding the combined business are “forward looking statements.” In addition, words such as “estimates,” “projects,” “expects,” “anticipates,” “forecasts,” “plans,” “intends,” “believes,” “seeks,” “may,” “will,” “would,” “should,” “future,” “propose,” “target,” “goal,” “objective,” “outlook” and variations of these words or similar expressions (or the negative versions of such words or expressions) are intended to identify forward-looking statements. These forward-looking statements are not guarantees of future performance, conditions or results, and involve a number of known and unknown risks, uncertainties, assumptions and other important factors, many of which are outside Altimar’s control, that could cause actual results or outcomes to differ materially from those discussed in the forward-looking statements. Important factors, among others, that may affect actual results or outcomes include: the inability of Altimar to complete the contemplated transactions with Owl Rock and Dyal; the risk that the approval of the stockholders of Altimar for the proposed business combination is not obtained; the inability to recognize the anticipated benefits of the proposed business combination, which may be affected by, among other things, the amount of funds available in Altimar’s trust account following any redemptions by Altimar’s stockholders; changes in general economic conditions, including as a result of the COVID-19 pandemic; the outcome of litigation related to or arising out of the proposed business combination, or any adverse developments therein or delays or costs resulting therefrom; the ability to meet the New York Stock Exchange’s listing standards following the consummation of the transactions contemplated by the proposed business combination; costs related to the proposed business combination; and those factors discussed in Altimar’s prospectus, dated October 22, 2020 under the heading “Risk Factors,” and other documents of Altimar filed, or to be filed, with the SEC. Altimar does not undertake any obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

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Participants in the Solicitation

Altimar and certain of its respective directors and executive officers may be deemed to be participants in the solicitation of proxies from the stockholders of Altimar, in favor of the approval of the business combination. Additional information regarding the interests of those participants and other persons who may be deemed participants in the transaction may be obtained by reading the registration statement and the proxy statement/prospectus and other relevant documents filed with the SEC. Free copies of these documents may be obtained as described in the preceding paragraph.

Non-Solicitation

The disclosure herein is not a proxy statement or solicitation of a proxy, consent or authorization with respect to any securities or in respect of the potential transaction and shall not constitute an offer to sell or a solicitation of an offer to buy the securities of Altimar, nor shall there be any sale of any such securities in any state or jurisdiction in which such offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities laws of such state or jurisdiction. No offer of securities shall be made except by means of a definitive document.

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: February 24, 2021

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