Mark H Hildebrandt

Mark H Hildebrandt serves as director at HEI-A (HEI-A). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

7 trades

$761.8K

Total Sells

0 trades

$0.00

Net Position

Net Buyer

$761.8K

Companies Traded

2

HEI, HEI-A

Active Period

Sep 2021 – Oct 2026

7 total trades

Most Recent

Buy HEI

Oct 13, 2026 · $175.1K

Mark H Hildebrandt's Insider Trading at HEI-A (HEI-A)

Buys

5 · $487.2K

Sells

0 · $0.00

Total Shares Bought

2,903

Total Shares Sold

0

HEI-A Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Oct 23, 2025	Buy	400	$248.76	$99.5K	1,181
Oct 14, 2025	Buy	676	$243.93	$164.9K	49,423
Jun 8, 2023	Buy	781	$127.98	$100.0K	781
Jun 6, 2023	Buy	120	$158.20	$19.0K	4,744
Sep 10, 2021	Buy	926	$112.13	$103.8K	48,747

Mark H Hildebrandt's Insider Trading at HEICO Corporation (HEI)

Buys

2 · $274.6K

Sells

0 · $0.00

Total Shares Bought

1,195

Total Shares Sold

0

HEI Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Oct 13, 2026	Buy	795	$220.30	$175.1K	50,218
Oct 21, 2025	Buy	400	$248.76	$99.5K	0

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