| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ALTR | Class A Common Stock | Disposed to Issuer | $3,542,776 | -31,352 | -100% | $113.00 | 0 | 26 Mar 2025 | Direct | F1, F2, F3, F4 |
| transaction | ALTR | Class A Common Stock | Disposed to Issuer | $857,444 | -7,588 | -100% | $113.00 | 0 | 26 Mar 2025 | By husband | F1, F3, F4, F5 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ALTR | Class A Common Stock Option | Disposed to Issuer | $32,346 | -300 | -100% | $107.82 | 0 | 26 Mar 2025 | Class A Common Stock | 300 | $5.18 | Direct | F1, F6, F7, F8 |
| transaction | ALTR | Class A Common Stock Option | Disposed to Issuer | $77,465 | -935 | -100% | $82.85 | 0 | 26 Mar 2025 | Class A Common Stock | 935 | $30.15 | Direct | F1, F7, F9, F10 |
| transaction | ALTR | Class A Common Stock Option | Disposed to Issuer | $1,514,826 | -20,700 | -100% | $73.18 | 0 | 26 Mar 2025 | Class A Common Stock | 20,700 | $39.82 | Direct | F1, F7, F11, F12 |
| transaction | ALTR | Class A Common Stock Option | Disposed to Issuer | $1,371,825 | -22,500 | -100% | $60.97 | 0 | 26 Mar 2025 | Class A Common Stock | 22,500 | $52.03 | Direct | F1, F7, F13, F14 |
| transaction | ALTR | Class A Common Stock Option | Disposed to Issuer | $320,720 | -6,280 | -100% | $51.07 | 0 | 26 Mar 2025 | Class A Common Stock | 6,280 | $61.93 | Direct | F1, F7, F15, F16 |
| transaction | ALTR | Class A Common Stock Option | Disposed to Issuer | $307,260 | -6,000 | -100% | $51.21 | 0 | 26 Mar 2025 | Class A Common Stock | 6,000 | $61.79 | Direct | F1, F7, F17, F18 |
| transaction | ALTR | Class A Common Stock Option | Disposed to Issuer | $1,610,160 | -24,000 | -100% | $67.09 | 0 | 26 Mar 2025 | Class A Common Stock | 24,000 | $45.91 | Direct | F1, F7, F19, F20 |
| transaction | ALTR | Class A Common Stock Option | Disposed to Issuer | $597,625 | -12,500 | -100% | $47.81 | 0 | 26 Mar 2025 | Class A Common Stock | 12,500 | $65.19 | Direct | F1, F7, F21, F22 |
| transaction | ALTR | Class A Common Stock Option | Disposed to Issuer | $477,720 | -14,063 | -100% | $33.97 | 0 | 26 Mar 2025 | Class A Common Stock | 14,063 | $79.03 | Direct | F1, F7, F23, F24 |
| transaction | ALTR | Class A Common Stock Option | Disposed to Issuer | $439,080 | -6,000 | -100% | $73.18 | 0 | 26 Mar 2025 | Class A Common Stock | 6,000 | $39.82 | By husband | F1, F7, F25, F26 |
| transaction | ALTR | Class A Common Stock Option | Disposed to Issuer | $365,820 | -6,000 | -100% | $60.97 | 0 | 26 Mar 2025 | Class A Common Stock | 6,000 | $52.03 | By husband | F1, F7, F27, F28 |
| transaction | ALTR | Class A Common Stock Option | Disposed to Issuer | $141,181 | -4,286 | -100% | $32.94 | 0 | 26 Mar 2025 | Class A Common Stock | 4,286 | $80.06 | By husband | F1, F7, F29, F30 |
| transaction | ALTR | Class A Common Stock Option | Disposed to Issuer | $91,631 | -1,457 | -100% | $62.89 | 0 | 26 Mar 2025 | Class A Common Stock | 1,457 | $50.11 | By husband | F1, F7, F31, F32 |
| transaction | ALTR | Class A Common Stock Option | Disposed to Issuer | $536,720 | -8,000 | -100% | $67.09 | 0 | 26 Mar 2025 | Class A Common Stock | 8,000 | $45.91 | By husband | F1, F7, F33, F34 |
| transaction | ALTR | Class A Common Stock Option | Disposed to Issuer | $85,102 | -1,780 | -100% | $47.81 | 0 | 26 Mar 2025 | Class A Common Stock | 1,780 | $65.19 | By husband | F1, F7, F35, F36 |
Stephanie Buckner is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.
| Id | Content |
|---|---|
| F1 | On March 26, 2025, the Company was acquired by Siemens Industry Software Inc. ("Siemens") pursuant to the merger agreement entered into among the Company, Siemens, and Astra Merger Sub Inc., dated as of October 30, 2024. |
| F2 | Includes 0 Class A Common Stock restricted stock units ("RSUs") that are unvested and scheduled to vest on or prior to December 31, 2025, and 17,141 RSUs that are unvested and scheduled to vest on or after January 1, 2026. |
| F3 | Upon the consummation of the merger, each issued and outstanding share of the Company's Class A Common Stock ("Common Stock") was canceled and converted into the right receive $113.00 in cash without interest. Each RSU that was granted under the Company's 2017 Equity Incentive Plan (the "2017 Plan") that was outstanding immediately prior to the consummation of the merger and was scheduled to vest on or before December 31, 2025 was vested, canceled and converted into the right to receive $113.00 in cash without interest. |
| F4 | (continued from footnote 3) Each RSU that was granted under the 2017 Plan that was outstanding immediately prior to the consummation of the merger, and scheduled to vest on or after January 1, 2026 was canceled and converted into the right to receive $113.00 in cash without interest, and will be paid on the last day of the calendar quarter preceding the quarter in which such RSU would have otherwise vested in accordance with the vesting schedule in effect immediately prior to the consummation of the merger, less any applicable withholding taxes, subject to acceleration in certain circumstances. |
| F5 | Includes 478 Class A Common Stock restricted stock units ("RSUs") that are unvested and scheduled to vest on or prior to December 31, 2025, and 1,074 RSUs that are unvested and scheduled to vest on or after January 1, 2026. |
| F6 | This option is fully vested. |
| F7 | Each option that was outstanding immediately prior to the consummation of the merger and was scheduled to vest on or before December 31, 2025 was vested, canceled and converted into the right to receive the cash value of the option. Each option that was outstanding immediately prior to the consummation of the merger, and scheduled to vest on or after January 1, 2026 was canceled and converted into a right to receive the cash value of the option, such cash value of the option to be paid on the last day of the calendar quarter preceding the quarter in which such option would have otherwise vested in accordance with the vesting schedule in effect immediately prior to the consummation of the merger, less any applicable withholding taxes, subject to acceleration in certain circumstances. |
| F8 | This option represents an aggregate cash value of $32,346.00, representing the difference between the exercise price of the option and $113.00. |
| F9 | This option is fully vested. |
| F10 | This option represents an aggregate cash value of $77,464.75, representing the difference between the exercise price of the option and $113.00. |
| F11 | This option is fully vested. |
| F12 | This option represents an aggregate cash value of $1,514,826.00, representing the difference between the exercise price of the option and $113.00. |
| F13 | This option is fully vested. |
| F14 | This option represents an aggregate cash value of $1,371,825.00, representing the difference between the exercise price of the option and $113.00. |
| F15 | This option is fully vested. |
| F16 | This option represents an aggregate cash value of $320,719.60, representing the difference between the exercise price of the option and $113.00. |
| F17 | Includes 0 shares of Common Stock underlying the options that are unvested and scheduled to vest on or prior to December 31, 2025, and 1,500 shares of Common Stock underlying the options that are unvested and scheduled to vest on or after January 1, 2026. |
| F18 | This option represents an aggregate cash value of $307,260.00, representing the difference between the exercise price of the option and $113.00. |
| F19 | Includes 12,000 shares of Common Stock underlying the options that are unvested and scheduled to vest on or prior to December 31, 2025, and 0 shares of Common Stock underlying the options that are unvested and scheduled to vest on or after January 1, 2026. |
| F20 | This option represents an aggregate cash value of $1,610,160.00, representing the difference between the exercise price of the option and $113.00. |
| F21 | Includes 0 shares of Common Stock underlying the options that are unvested and scheduled to vest on or prior to December 31, 2025, and 6,250 shares of Common Stock underlying the options that are unvested and scheduled to vest on or after January 1, 2026. |
| F22 | This option represents an aggregate cash value of $597,625.00, representing the difference between the exercise price of the option and $113.00. |
| F23 | Includes 0 shares of Common Stock underlying the options that are unvested and scheduled to vest on or prior to December 31, 2025, and 10,547 shares of Common Stock underlying the options that are unvested and scheduled to vest on or after January 1, 2026. |
| F24 | This option represents an aggregate cash value of $477,720.11, representing the difference between the exercise price of the option and $113.00. |
| F25 | This option is fully vested. |
| F26 | This option represents an aggregate cash value of $439,080.00, representing the difference between the exercise price of the option and $113.00. |
| F27 | This option is fully vested. |
| F28 | This option represents an aggregate cash value of $365,820.00, representing the difference between the exercise price of the option and $113.00. |
| F29 | Includes 1,071 shares of Common Stock underlying the options that are unvested and scheduled to vest on or prior to December 31, 2025, and 0 shares of Common Stock underlying the options that are unvested and scheduled to vest on or after January 1, 2026. |
| F30 | This option represents an aggregate cash value of $141,180.84, representing the difference between the exercise price of the option and $113.00. |
| F31 | Includes 364 shares of Common Stock underlying the options that are unvested and scheduled to vest on or prior to December 31, 2025, and 364 shares of Common Stock underlying the options that are unvested and scheduled to vest on or after January 1, 2026. |
| F32 | This option represents an aggregate cash value of $91,630.73, representing the difference between the exercise price of the option and $113.00. |
| F33 | Includes 4,000 shares of Common Stock underlying the options that are unvested and scheduled to vest on or prior to December 31, 2025, and 0 shares of Common Stock underlying the options that are unvested and scheduled to vest on or after January 1, 2026. |
| F34 | This option represents an aggregate cash value of $536,720.00, representing the difference between the exercise price of the option and $113.00. |
| F35 | Includes 0 shares of Common Stock underlying the options that are unvested and scheduled to vest on or prior to December 31, 2025, and 890 shares of Common Stock underlying the options that are unvested and scheduled to vest on or after January 1, 2026. |
| F36 | This option represents an aggregate cash value of $85,101.80, representing the difference between the exercise price of the option and $113.00. |