Time on boards
- Boards served
- 2
- Current seats
- 2
- Board service
- 7 years
- Director since
- 2023
7 years of board service in total across 2 boards, counting each seat separately. Longest: Snowflake Inc., 3 years.
Snowflake Inc.
Director
MongoDB Inc.
Director
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Jun 25, 2024 | MongoDB Inc. | Grant or award | +129 | — | — |
| Jun 24, 2024 | MongoDB Inc. | Open-market sale | −10,000 | $228.00 | $2,280,000 |
| Jun 27, 2023 | MongoDB Inc. | Grant or award | +598 | — | — |
| Jun 27, 2023 | MongoDB Inc. | Grant or award | +109 | — | — |
| May 31, 2023 | Snowflake Inc. | Option exercise | +400,000 | $1.41 | $564,000 |
| May 31, 2023 | Snowflake Inc. | Option exercise | +30,000 | $0.07 | $2,100 |
| May 31, 2023 | Snowflake Inc. | Open-market sale | −79,276 | $162.55 | $12,886,314 |
| May 31, 2023 | Snowflake Inc. | Open-market sale | −100,882 | $163.27 | $16,471,004 |
| May 31, 2023 | Snowflake Inc. | Open-market sale | −48,598 | $164.30 | $7,984,651 |
| May 31, 2023 | Snowflake Inc. | Open-market sale | −1,244 | $165.11 | $205,397 |
| May 8, 2023 | Snowflake Inc. | Open-market sale | −1,000 | $160.27 | $160,270 |
| May 3, 2023 | Snowflake Inc. | Option exercise | +10,000 | $0.07 | $700 |
| May 3, 2023 | Snowflake Inc. | Open-market sale | −10,000 | $144.07 | $1,440,700 |
| Apr 6, 2023 | Snowflake Inc. | Open-market sale | −1,000 | $144.59 | $144,590 |
| Apr 3, 2023 | Snowflake Inc. | Option exercise | +10,000 | $0.07 | $700 |
Questions about John Dennis McMahon
What boards is John Dennis McMahon on?
John Dennis McMahon sits on the boards of MongoDB Inc. and Snowflake Inc.
How long has John Dennis McMahon served on boards?
Our records show at least 7 years of board service across 2 boards, the earliest from 2023.
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