| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ALTR | Class A Common Stock | Conversion of derivative security | $0 | +14.4K | $0.00 | 14.4K | Dec 6, 2023 | By GC Investments LLC | F2 | |
| transaction | ALTR | Class A Common Stock | Sale | -$973K | -13.5K | -93.75% | $72.00 | 900 | Dec 6, 2023 | By GC Investments LLC | F2, F3 |
| transaction | ALTR | Class A Common Stock | Sale | -$65.6K | -900 | -100% | $72.84 | 0 | Dec 6, 2023 | By GC Investments LLC | F2, F4 |
| holding | ALTR | Class A Common Stock | 187K | Dec 6, 2023 | By The Dana Christ Irrevocable Trust Dated May 8, 2015 | F1 | |||||
| holding | ALTR | Class A Common Stock | 187K | Dec 6, 2023 | By The Lauren Christ Irrevocable Trust Dated May 8, 2015 | F1 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ALTR | Class B Common Stock | Conversion of derivative security | $0 | -14.4K | -0.31% | $0.00 | 4.65M | Dec 6, 2023 | Class A Common Stock | 14.4K | $0.00 | By GC Investments LLC | F2, F5 |
| holding | ALTR | Class B Common Stock | 5.18M | Dec 6, 2023 | Class A Common Stock | 5.18M | $0.00 | By Christ Revocable Trust dated May 8, 2015 | F5, F6 |
| Id | Content |
|---|---|
| F1 | Reporting person serves as co-Trustee. Reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose. |
| F2 | Reporting person serves as Manager. Reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose. |
| F3 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $71.65 to $72.64 per share, inclusive. The reporting person undertakes to provide to Altair Engineering Inc., any security holder of Altair Engineering Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein. |
| F4 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $72.65 to $73.07 per share, inclusive. The reporting person undertakes to provide to Altair Engineering Inc., any security holder of Altair Engineering Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein. |
| F5 | Each 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. 333-225412) for a description of the conversion rights. |
| F6 | Reporting person serves as Trustee. Reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose. |