Mark H. Hildebrandt
Director, HEICO.
Companies
Holdings
Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.
Shares held
As of each latest filing. The line shows shares held over time.
Recent filings
- Oct 8, 2026Bought 795 shares at $220.30 of HEICO2
- Oct 21, 2025Bought 400 shares at $248.76 of HEICO3
- Oct 10, 2025Bought 676 shares at $243.93 of HEICO4
- Oct 18, 2024Bought 726 shares at $262.94 of HEICO5
- Jun 7, 2023Bought 781 shares at $127.98 of HEICO6
- Jun 2, 2023Bought 120 shares at $158.20 of HEICO7
- Jan 10, 2023Bought 1,385 shares at $157.07 of HEICO8
- Sep 8, 2021Bought 926 shares at $112.13 of HEICO9
- Oct 12, 2020Bought 978 shares at $111.44 of HEICO10
- Oct 29, 2019Bought 949 shares at $120.70 of HEICO11
- Jun 14, 2019Bought 987 shares at $100.69 of HEICO12
- Jun 14, 2019Bought 987 shares at $100.71 of HEICO12
- Jun 10, 2019Bought 963 shares at $103.34 of HEICO13
- Oct 9, 2018Bought 1,312 shares at $88.21 of HEICO14
- Oct 5, 2017Bought 1,316 shares at $76.13 of HEICO15
- Sep 29, 2017Bought 1,504 shares at $76.08 of HEICO16
- Sep 7, 2016Bought 2,044 shares at $57.11 of HEICO17
- Sep 21, 2015Bought 1,550 shares at $45.03 of HEICO18
- Dec 18, 2014Bought 2,542 shares at $46.99 of HEICO19
- Oct 29, 2013Bought 1,786 shares at $39.23 of HEICO20
- Dec 20, 2012Bought 833 shares at $31.11 of HEICO21
- Oct 26, 2012Bought 2,500 shares at $30.12 of HEICO22
- Oct 28, 2011Bought 1,987 shares at $39.81 of HEICO23
- Sep 23, 2010Bought 2,161 shares at $33.02 of HEICO24
- Jul 28, 2009Bought 1,585 shares at $29.85 of HEICO25
Trade performance
Ranked 86 on our insider buyers board: 10 scored buys, a median of −7.3% against the S&P 500 a year later, and 40% beating it.
| Date | Stock | Trade | Value | Return since | Vs S&P since | Vs S&P, 1 year |
|---|---|---|---|---|---|---|
| Oct 8, 2026 | HEI | Buy | $175.1K | +4.3% | +4.6% | |
| Oct 21, 2025 | HEI | Buy | $99.5K | −2.1% | −17.0% | |
| Oct 10, 2025 | HEI | Buy | $164.9K | +0.6% | −17.6% | −22.3% |
| Oct 18, 2024 | HEI | Buy | $190.9K | +18.3% | −13.7% | +5.1% |
| Jun 7, 2023 | HEI | Buy | $100.0K | +88.8% | +7.9% | +12.3% |
| Jun 2, 2023 | HEI | Buy | $19.0K | +90.5% | +10.2% | +14.0% |
| Jan 10, 2023 | HEI | Buy | $217.5K | +96.0% | −1.6% | −13.2% |
| Sep 8, 2021 | HEI | Buy | $103.8K | +147.0% | +75.8% | +35.5% |
| Oct 12, 2020 | HEI | Buy | $109.0K | +178.7% | +59.7% | −1.4% |
| Oct 29, 2019 | HEI | Buy | $114.5K | +154.5% | −0.0% | −21.8% |
| Jun 14, 2019 | HEI | Buy | $198.8K | +144.6% | −22.2% | −19.7% |
| Jun 10, 2019 | HEI | Buy | $99.5K | +141.1% | −26.0% | −22.2% |
Returns are price-only (no dividends), measured from the trade date.
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1SEC EDGARHEICO, Board member
- 2
- 3SEC EDGARForm 4 filed Oct 23, 2025
- 4SEC EDGARForm 4 filed Oct 14, 2025
- 5SEC EDGARForm 4 filed Oct 21, 2024
- 6SEC EDGARForm 4 filed Jun 8, 2023
- 7SEC EDGARForm 4 filed Jun 6, 2023
- 8SEC EDGARForm 4 filed Jan 11, 2023
- 9SEC EDGARForm 4 filed Sep 10, 2021
- 10SEC EDGARForm 4 filed Oct 14, 2020
- 11SEC EDGARForm 4 filed Oct 30, 2019
- 12SEC EDGARForm 4 filed Jun 17, 2019
- 13SEC EDGARForm 4 filed Jun 11, 2019
- 14SEC EDGARForm 4 filed Oct 10, 2018
- 15SEC EDGARForm 4 filed Oct 6, 2017
- 16SEC EDGARForm 4 filed Oct 3, 2017
- 17SEC EDGARForm 4 filed Sep 9, 2016
- 18SEC EDGARForm 4 filed Sep 23, 2015
- 19SEC EDGARForm 4 filed Dec 19, 2014
- 20SEC EDGARForm 4 filed Oct 31, 2013
- 21SEC EDGARForm 4 filed Dec 21, 2012
- 22SEC EDGARForm 4 filed Oct 29, 2012
- 23SEC EDGARForm 4 filed Nov 1, 2011
- 24SEC EDGARForm 4 filed Sep 24, 2010
- 25SEC EDGARForm 4 filed Jul 29, 2009