Mark H. Hildebrandt

Director, HEICO.

Companies

  • HEICOBoard member Sep 16, 2008 to now1

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

  • HEICO HEI3,155 shares2$964.7K at $305.76Oct 13, 2026

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.

DateStockTradeValueReturn sinceVs S&P sinceVs S&P, 1 year
Oct 8, 2026HEIBuy$175.1K+4.3%+4.6%
Oct 21, 2025HEIBuy$99.5K−2.1%−17.0%
Oct 10, 2025HEIBuy$164.9K+0.6%−17.6%−22.3%
Oct 18, 2024HEIBuy$190.9K+18.3%−13.7%+5.1%
Jun 7, 2023HEIBuy$100.0K+88.8%+7.9%+12.3%
Jun 2, 2023HEIBuy$19.0K+90.5%+10.2%+14.0%
Jan 10, 2023HEIBuy$217.5K+96.0%−1.6%−13.2%
Sep 8, 2021HEIBuy$103.8K+147.0%+75.8%+35.5%
Oct 12, 2020HEIBuy$109.0K+178.7%+59.7%−1.4%
Oct 29, 2019HEIBuy$114.5K+154.5%−0.0%−21.8%
Jun 14, 2019HEIBuy$198.8K+144.6%−22.2%−19.7%
Jun 10, 2019HEIBuy$99.5K+141.1%−26.0%−22.2%

Returns are price-only (no dividends), measured from the trade date.