Hennessy Sean P insider trades
Hennessy Sean P has filed 19 Form 4s with the SEC that we hold, for TransDigm Group INC (TDG) (Director) and Perimeter Solutions, Inc. (PRM) (Director). Across all of them we count 2 purchases worth $1.0M and 13 sales worth $13.3M reported on Form 4. None of these purchases or sales is dated in the last 12 months. The largest single trade was a sale of 3,000 shares of TransDigm Group INC worth $4.3M, dated 2025-05-20. The first filing on our record is dated 2021-09-29 and the latest 2026-09-21.
TransDigm Group INC (TDG)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2022-08-15 | S, sale reported on Form 4 | 3,345 | $2.3M | 2022-08-16 |
| 2022-08-15 | S, sale reported on Form 4 | 1,133 | $768.8K | 2022-08-16 |
| 2023-11-22 | S, sale reported on Form 4 | 965 | $935.9K | 2023-11-27 |
| 2023-11-22 | S, sale reported on Form 4 | 300 | $290.6K | 2023-11-27 |
| 2023-11-22 | S, sale reported on Form 4 | 320 | $311.8K | 2023-11-27 |
| 2023-11-22 | S, sale reported on Form 4 | 1,074 | $1.0M | 2023-11-27 |
| 2023-11-22 | S, sale reported on Form 4 | 871 | $846.9K | 2023-11-27 |
| 2023-11-22 | S, sale reported on Form 4 | 120 | $116.7K | 2023-11-27 |
| 2024-01-22 | P, purchase reported on Form 4 | 0 | $511 | 2024-05-09 |
| 2025-05-20 | S, sale reported on Form 4 | 300 | $431.7K | 2025-05-20 |
| 2025-05-20 | S, sale reported on Form 4 | 100 | $144.0K | 2025-05-20 |
| 2025-05-20 | S, sale reported on Form 4 | 636 | $914.5K | 2025-05-20 |
| 2025-05-20 | S, sale reported on Form 4 | 664 | $954.2K | 2025-05-20 |
| 2025-05-20 | S, sale reported on Form 4 | 3,000 | $4.3M | 2025-05-20 |
Perimeter Solutions, Inc. (PRM)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2021-11-09 | P, purchase reported on Form 4 | 100,000 | $1.0M | 2021-11-10 |
Counted from the Form 4 filings this reporting owner (SEC CIK 1203507) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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