| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | ALTR | Class A Common Stock | 4,608 | 16 Feb 2022 | Direct | F1, F2 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | ALTR | Stock Option (Right to Buy) | 16 Feb 2022 | Class A Common Stock | 640 | $5.18 | Direct | F3 | ||||||
| holding | ALTR | Stock Option (Right to Buy) | 16 Feb 2022 | Class A Common Stock | 12,000 | $39.82 | Direct | F4 | ||||||
| holding | ALTR | Stock Option (Right to Buy) | 16 Feb 2022 | Class A Common Stock | 12,000 | $52.03 | Direct | F5 |
| Id | Content |
|---|---|
| F1 | This amendment is being filed to correct the number of securities beneficially owned. The number of securities beneficially owned was misstated on the Reporting Person's original Form 3 filed with the Securities and Exchange Commission on February 28, 2022. |
| F2 | Includes 2,746 Class A Common Stock restricted stock units that are unvested. Also includes 109 Class A Common Stock purchased under the Altair Engineering Inc. 2021 Employee Stock Purchase Plan in a transaction exempt under Rule 16b-3(c). |
| F3 | The options vest in 4 equal annual installments commencing on June 9, 2018. |
| F4 | On June 2, 2020, the Reporting Person was granted options covering 12,000 shares of Class A Common Stock. Of such options, options covering 6,000 shares vest on June 2, 2022 and options covering 6,000 shares vest on June 2, 2023. |
| F5 | On December 2, 2020, the Reporting Person was granted options covering 12,000 shares of Class A Common Stock. Of such options, options covering 6,000 shares vest on December 2, 2022 and options covering 6,000 shares vest on December 2, 2023. |
Chief Information Security Officer