SEC Form 4 · accession 0000899243-17-025361

Altair Engineering Inc. · ALTR

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

A later amendment supersedes this filing — read the amendment. The figures below are kept as originally reported (version chain, not an overwrite).

Reporting owner

10% Owner

Period of report

Nov 3, 2017

Accepted (ET)

Nov 3, 2017 · 9:56 am EDT

Rule 10b5-1 plan

unknown — predates the checkbox

Issuer CIK

0001701732

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Class A Common Stock	Nov 3, 2017	C	1,200,000	$0.00	A	1,200,000	D
Class A Common Stock	Nov 3, 2017	S	1,200,000	$12.09	D	0	D

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Class B Common Stock^F2	$0.00	Nov 3, 2017	C	1,200,000	D	—	—	Class A Common Stock	1,200,000	8,146,728	D

F1These shares were sold by the reporting person as a selling stockholder pursuant to an underwritten public offering by the Issuer. The offering closed on November 3, 2017. The reported sale price reflects the price at which the reporting person sold shares to the underwriters.
F2Each share of Class B common stock is immediately convertible, at the option of the shareholder, into one share of Class A common stock and shall automatically convert into Class A common stock upon the occurrence of certain events. Please see Altair Engineering Inc. Registration Statement filed with the Securities and Exchange Commission on Form S-1 (File No. 333-220710) for a description of the conversion rights.

Exhibit List