ALTR Altair Engineering Inc

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): May 31, 2023

Altair Engineering Inc.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (248) 614-2400

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 of 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 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

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.  ☐

As previously announced, in February 2022 the Board of Directors of Altair Engineering Inc. (the “Company”) authorized the repurchase of up to $50.0 million of its outstanding Class A Common Stock. On May 31, 2023, the Company’s Board expanded that authorization from $50.0 million to $75.0 million. After giving effect to that expansion and repurchases made since February 2022, the Company is currently authorized to repurchase approximately $49.1 million of its outstanding Class A Common Stock.

The Company’s stock repurchase program is approved to run through December 2, 2024, but may be suspended for periods or discontinued at any time.

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.