Insider Trading Arrangements |
3 Months Ended | 12 Months Ended |
|---|---|---|
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Dec. 31, 2023
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Dec. 31, 2023
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| Trading Arrangements, by Individual | ||
| Non-Rule 10b5-1 Arrangement Adopted | false | |
| Non-Rule 10b5-1 Arrangement Terminated | false | |
| John Hennessy [Member] | ||
| Trading Arrangements, by Individual | ||
| Material Terms of Trading Arrangement | John Hennessy, Chair of the Board of Directors, through the John L. Hennessy & Andrea J. Hennessy Revocable Trust, adopted a new trading plan on November 1, 2023 (with the first trade under the new plan scheduled for February 12, 2024). The trading plan will be effective until March 12, 2025 to sell 6,664 shares of Class C Capital Stock and 11,336 shares of Class A Common Stock. | |
| Name | •John Hennessy | |
| Title | Chair of the Board of Directors | |
| Rule 10b5-1 Arrangement Adopted | true | |
| Adoption Date | November 1, 2023 | |
| Arrangement Duration | 497 days | |
| Ann Mather [Member] | ||
| Trading Arrangements, by Individual | ||
| Material Terms of Trading Arrangement | Ann Mather, former member of the Board of Directors, terminated her trading plan on October 30, 2023, effective with her resignation from the Board of Directors. The trading plan previously permitted the sale of 12,580 shares of Class C Capital Stock and would have been effective until June 2, 2024. | |
| Name | •Ann Mather | |
| Title | former member of the Board of Directors | |
| Rule 10b5-1 Arrangement Terminated | true | |
| Termination Date | October 30, 2023 | |
| Aggregate Available | 12,580 | 12,580 |
| Ruth M. Porat [Member] | ||
| Trading Arrangements, by Individual | ||
| Material Terms of Trading Arrangement | Ruth M. Porat, President and Chief Investment Officer; Chief Financial Officer, adopted a new trading plan on November 30, 2023 (with the first trade under the new plan scheduled for March 8, 2024). The trading plan will be effective until March 8, 2025 to sell all of the (net) shares of up to 82,900 (gross) Class C Capital Stock issued upon the vesting of her Alphabet 2021 Performance Stock Units, as adjusted based on performance (net shares are net of tax withholding). | |
| Name | •Ruth M. Porat | |
| Title | President and Chief Investment Officer; Chief Financial Officer | |
| Rule 10b5-1 Arrangement Adopted | true | |
| Adoption Date | November 30, 2023 | |
| Arrangement Duration | 464 days | |
| Aggregate Available | 82,900 | 82,900 |
| John Hennessy Trading Arrangement, Class C Capital Stock [Member] | John Hennessy [Member] | ||
| Trading Arrangements, by Individual | ||
| Aggregate Available | 6,664 | 6,664 |
| John Hennessy Trading Arrangement, Class A Common Stock [Member] | John Hennessy [Member] | ||
| Trading Arrangements, by Individual | ||
| Aggregate Available | 11,336 | 11,336 |