Altair Engineering Inc. Watch

from 10-K 8 pages Description of the Registrant’s Capital Stock

from 8-K 119 pages Altair Engineering Inc. and U.S. Bank Trust Company, National Association, as Trustee Indenture Dated as of June 14, 2022 1.750% Convertible Senior Notes Due 2027

from 10-K 7 pages Description of the Registrant’s Class a Common Stock

from 8-K 93 pages Altair Engineering Inc. and U.S. Bank National Association, as Trustee First Supplemental Indenture Dated as of June 10, 2019 to Indenture Dated as of June 10, 2019 0.250% Convertible Senior Notes Due 2024

from 8-K 53 pages Altair Engineering Inc., Issuer and U.S. Bank National Association, Trustee Indenture Dated as of June 10, 2019 Senior Debt Securities

from S-3ASR 53 pages Altair Engineering Inc., Issuer and U.S. Bank National Association, Trustee Indenture Dated as of [ ], 201[ ] Senior Debt Securities

from S-1/A 2 pages The Board of This Corporation Has the Authority to Create and Determine the Relative Rights and Preferences of Classes or Series of Shares of Capital Stock Other Than Common Stock. This Corporation Will Furnish to Any Shareholder Upon Written Request Sent to Its Principal Executive Offices, and Without Charge, a Full Statement of the Board’s Authority to Create and Determine the Relative Rights and Preferences of Classes or Series of Shares of Capital Stock as Well as the Designations, Preferences, Limitations and Relative Rights of the Shares of Each Class or Series Then Outstanding or Authorized to Be Issued