Insider Tracker SEC Form 4 insider trades
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HEI

HEICO CORP

Industrials Aircraft Engines & Engine Parts Market cap: $17.0B All insider activity → Quote and statistics → Sign in to watch HEI Sign in to set a price alert
68
Insider Score Band 60–79

Research score, not a recommendation.

Total bought$1.2M12 Form 4 purchases
Distinct insiders10open-market buyers
Lead insiderMENDELSON LAURANS ACEO
Cluster window2017-09-29 → 2017-10-05closed

Market data

Live quote and chart from Yahoo Finance, loaded through this server. Insider purchases are marked on the chart.

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Why this score

Research score: a weighted blend of the five factors, times the routine and offering discounts, minus the selling penalty.

Breadth number & diversity of participating insiders
100%
Seniority executive rank of buyers (CEO/CFO/Director)
88%
Commitment purchase size relative to company & holdings
60%
Context buying into stock weakness signals conviction
1%
Timing coordinated purchases within a tight window
99%
Routine-purchase discount × 1.00
Company-type / offering discount × 0.54
Net insider selling penalty − 15

Why are they buying?

No explanation has been generated for this cluster. The filings in the table below are the primary evidence.

Stock Price & Insider Purchase History

Daily close price with open-market insider purchases plotted over time

Loading price history…

Transactions

12 Form 4 trades · 10 insiders Sign in to download CSV
Purchases in this cluster, grouped by insider, largest first
Date Insider Role Shares Price Value Flags Filing
2017-09-29 → 2017-10-05 Hildebrandt Mark H 11 purchases with a 63-day result · median -1.1% Director 2,820 $76.10 avg $214.6K
offering
2017-09-29 Hildebrandt Mark H 1,504 $76.08 $114.4K
offering
SEC filing for Hildebrandt Mark H (opens in a new tab)
2017-10-05 Hildebrandt Mark H 1,316 $76.13 $100.2K
SEC filing for Hildebrandt Mark H (opens in a new tab)
2017-09-29 MENDELSON VICTOR H 7 purchases with a 63-day result · median -1.4% President 1,504 $76.08 avg $114.4K
offering
2017-09-29 MENDELSON VICTOR H 945 $76.08 $71.9K
offering
SEC filing for MENDELSON VICTOR H (opens in a new tab)
2017-09-29 MENDELSON VICTOR H 559 $76.08 $42.5K
offering
SEC filing for MENDELSON VICTOR H (opens in a new tab)
2017-09-29 MENDELSON LAURANS A 7 purchases with a 63-day result · median -2.2% CEO 1,504 $76.08 $114.4K
offering
SEC filing for MENDELSON LAURANS A (opens in a new tab)
2017-09-29 HENRIQUES ADOLFO 6 purchases with a 63-day result · median -0.8% Director 1,504 $76.08 $114.4K
offering
SEC filing for HENRIQUES ADOLFO (opens in a new tab)
2017-09-29 SCHRIESHEIM ALAN 6 purchases with a 63-day result · median -0.8% Director 1,504 $76.08 $114.4K
offering
SEC filing for SCHRIESHEIM ALAN (opens in a new tab)
2017-09-29 CULLIGAN THOMAS M 6 purchases with a 63-day result · median -0.8% Director 1,504 $76.08 $114.4K
offering
SEC filing for CULLIGAN THOMAS M (opens in a new tab)
2017-09-29 MENDELSON ERIC A 7 purchases with a 63-day result · median +0.5% President 1,503 $76.08 $114.3K
offering
SEC filing for MENDELSON ERIC A (opens in a new tab)
2017-09-29 Schwitter Frank J 7 purchases with a 63-day result · median -2.2% Director 1,502 $76.08 $114.3K
offering
SEC filing for Schwitter Frank J (opens in a new tab)
2017-09-29 MAYRHUBER WOLFGANG history of MAYRHUBER WOLFGANG's purchases Director 1,502 $76.08 $114.3K
offering
SEC filing for MAYRHUBER WOLFGANG (opens in a new tab)
2017-09-29 Neitzel Julie 7 purchases with a 63-day result · median -2.2% Director 1,469 $76.08 $111.8K
offering
SEC filing for Neitzel Julie (opens in a new tab)
Total $1.2M

Other buying runs at HEI

A run ends after a pause in the buying, so one company can have several. Returns are the stock's return minus its benchmark's (IWM for small companies, SPY otherwise), from the first open after the run became a cluster. Past results, not a forecast.

After this run became a cluster: 21 days +2.2%63 days +27.2%126 days +91.7%

Other insider buying runs at this company, newest first, with the return against the benchmark that followed
Window Insiders Total Score 21 days63 days126 days Status
2026-10-08 8 $1.4M 68 ––– active
2025-10-10 → 2025-10-21 8 $1.4M 65 -1.1%+8.4%-15.5% closed
2024-10-18 10 $1.9M 69 +4.3%-15.0%-1.4% closed
2023-06-02 → 2023-06-07 10 $414.8K 65 +6.9%+0.5%+3.1% closed
2023-01-10 10 $1.8M 71 +1.6%-2.2%-9.2% closed
2021-09-08 8 $831.1K 56 +10.1%+9.8%+20.3% closed
2020-10-12 8 $871.9K 50 +14.3%+13.3%+0.2% closed
2019-10-28 → 2019-10-29 9 $1.0M 70 +1.4%-5.3%-26.2% closed
2018-10-09 9 $1.0M 66 +5.5%+1.6%+14.5% closed