Insider · CIK 1445233
Mark H Hildebrandt
Director at Heico HEI
Full history from EDGAR: holdings now, every transaction and Form 144 planned sales
Open-market buys25
Open-market sales0
Bought$2.6M
Sold$0
Every trade, with what the company filed around it
Open-market buys and sales as each Form 4 states them, newest first.
How these figures work
Notes on each row are as each Form 4 states them, next to SEC Tracker's own records of the company's filings and other insiders' buys. Holding after is what the filing reports they held after the trade, with the change in their holding.
| Date | Company | Trade | Value | Holding after | Notes |
|---|---|---|---|---|---|
| Oct 8, 2026 | Heico HEI | Bought 795 sh at $220.30 One of 6 insiders who bought $1.1M over 1 day, within the 30-day window. 42 days after the company's 10-Q filed Aug 27, 2026. | $175K | 50,218 +2% | One of 6 insiders who bought $1.1M over 1 day, within the 30-day window. 42 days after the company's 10-Q filed Aug 27, 2026. |
| Oct 21, 2025 | Heico HEI | Bought 400 sh at $248.76 One of 6 insiders who bought $1.1M over 12 days, within the 30-day window. 22 days after the company's 8-K filed Sep 29, 2025. | $100K | 1,181 +51% | One of 6 insiders who bought $1.1M over 12 days, within the 30-day window. 22 days after the company's 8-K filed Sep 29, 2025. |
| Oct 10, 2025 | Heico HEI | Bought 676 sh at $243.93 One of 6 insiders who bought $1.1M over 12 days, within the 30-day window. 11 days after the company's 8-K filed Sep 29, 2025. | $165K | 49,423 +1% | One of 6 insiders who bought $1.1M over 12 days, within the 30-day window. 11 days after the company's 8-K filed Sep 29, 2025. |
| Oct 18, 2024 | Heico HEI | Bought 726 sh at $262.94 One of 6 insiders who bought $1.1M over 1 day, within the 30-day window. 147 days after the company's SD filed May 24, 2024. | $191K | 5,470 +15% | One of 6 insiders who bought $1.1M over 1 day, within the 30-day window. 147 days after the company's SD filed May 24, 2024. |
| Jun 7, 2023 | Heico HEI | Bought 781 sh at $127.98 Their first shares, by the holdings the Form 4 states. One of 6 insiders who bought $319K over 6 days, within the 30-day window. | $100K | 781 | Their first shares, by the holdings the Form 4 states. One of 6 insiders who bought $319K over 6 days, within the 30-day window. |
| Jun 2, 2023 | Heico HEI | Bought 120 sh at $158.20 One of 6 insiders who bought $319K over 6 days, within the 30-day window. | $19K | 4,744 +3% | One of 6 insiders who bought $319K over 6 days, within the 30-day window. |
| Jan 10, 2023 | Heico HEI | Bought 1,385 sh at $157.07 One of 6 insiders who bought $1M over 1 day, within the 30-day window. | $218K | 4,624 +43% | One of 6 insiders who bought $1M over 1 day, within the 30-day window. |
| Sep 8, 2021 | Heico HEI | Bought 926 sh at $112.13 One of 5 insiders who bought $519K over 1 day, within the 30-day window. | $104K | 48,747 +2% | One of 5 insiders who bought $519K over 1 day, within the 30-day window. |
| Oct 12, 2020 | Heico HEI | Bought 978 sh at $111.44 One of 5 insiders who bought $545K over 1 day, within the 30-day window. | $109K | 3,239 +43% | One of 5 insiders who bought $545K over 1 day, within the 30-day window. |
| Oct 29, 2019 | Heico HEI | Bought 949 sh at $120.70 One of 5 insiders who bought $574K over 1 day, within the 30-day window. | $115K | 2,261 +72% | One of 5 insiders who bought $574K over 1 day, within the 30-day window. |
| Jun 14, 2019 | Heico HEI | Bought 1,974 sh at $100.70 | $199K | ||
| Jun 10, 2019 | Heico HEI | Bought 963 sh at $103.34 | $100K | 3,019 +47% | |
| Oct 9, 2018 | Heico HEI | Bought 1,312 sh at $88.21 Their first shares, by the holdings the Form 4 states. One of 4 insiders who bought $463K over 1 day, within the 30-day window. | $116K | 1,312 | Their first shares, by the holdings the Form 4 states. One of 4 insiders who bought $463K over 1 day, within the 30-day window. |
| Oct 5, 2017 | Heico HEI | Bought 1,316 sh at $76.13 Their first shares, by the holdings the Form 4 states. One of 5 insiders who bought $672K over 7 days, within the 30-day window. | $100K | 1,316 | Their first shares, by the holdings the Form 4 states. One of 5 insiders who bought $672K over 7 days, within the 30-day window. |
| Sep 29, 2017 | Heico HEI | Bought 1,504 sh at $76.08 One of 5 insiders who bought $672K over 7 days, within the 30-day window. | $114K | 30,606 +5% | One of 5 insiders who bought $672K over 7 days, within the 30-day window. |
| Sep 7, 2016 | Heico HEI | Bought 2,044 sh at $57.11 One of 5 insiders who bought $588K over 1 day, within the 30-day window. | $117K | 23,282 +10% | One of 5 insiders who bought $588K over 1 day, within the 30-day window. |
| Sep 21, 2015 | Heico HEI | Bought 1,550 sh at $45.03 One of 5 insiders who bought $347K over 1 day, within the 30-day window. | $70K | 21,238 +8% | One of 5 insiders who bought $347K over 1 day, within the 30-day window. |
| Dec 18, 2014 | Heico HEI | Bought 2,542 sh at $46.99 One of 5 insiders who bought $507K over 1 day, within the 30-day window. | $119K | 19,688 +15% | One of 5 insiders who bought $507K over 1 day, within the 30-day window. |
| Oct 29, 2013 | Heico HEI | Bought 1,786 sh at $39.23 One of 4 insiders who bought $280K over 1 day, within the 30-day window. | $70K | 17,146 +12% | One of 4 insiders who bought $280K over 1 day, within the 30-day window. |
| Dec 20, 2012 | Heico HEI | Bought 833 sh at $31.11 One of 5 insiders who bought $280K over 30 days, within the 30-day window. | $26K | 12,288 +7% | One of 5 insiders who bought $280K over 30 days, within the 30-day window. |
| Oct 26, 2012 | Heico HEI | Bought 2,500 sh at $30.12 One of 3 insiders who bought $226K over 2 days, within the 30-day window. | $75K | 11,455 +28% | One of 3 insiders who bought $226K over 2 days, within the 30-day window. |
| Oct 28, 2011 | Heico HEI | Bought 1,987 sh at $39.81 One of 4 insiders who bought $282K over 1 day, within the 30-day window. | $79K | 7,164 +38% | One of 4 insiders who bought $282K over 1 day, within the 30-day window. |
| Sep 23, 2010 | Heico HEI | Bought 2,161 sh at $33.02 One of 3 insiders who bought $297K over 1 day, within the 30-day window. | $71K | 4,142 +109% | One of 3 insiders who bought $297K over 1 day, within the 30-day window. |
| Jul 28, 2009 | Heico HEI | Bought 1,585 sh at $29.85 Their first shares, by the holdings the Form 4 states. Their first open-market buy here in SEC Tracker's records. | $47K | 1,585 | Their first shares, by the holdings the Form 4 states. Their first open-market buy here in SEC Tracker's records. |
Open-market trades are Form 4 transaction codes P (purchase) and S (sale). Planned sales are those the filing marks as made under a Rule 10b5-1 plan. A P-code buy at the offering price within a day of the company's FWP, 424B prospectus or offering 8-K is marked Bought in the offering and left out of open-market buy counts and cluster buys. Prices and values are as stated in each Form 4. Stock prices aren't shown on this page. Not investment advice.