Insider Trading Radar

Snapshot date: 2026-10-18 · Built: 2026-10-18T22:15:19+00:00 · Publication status: REVIEW

← United States · 中文

COMPANY RESEARCH

HEICO CORP

HEI, HEI.A · United States · Industrials

INSIDER SIGNAL

Insider activity score：82.1 / 100

8 insiders · 8 purchase events · $1.08m net purchases

US #44 · United States #44

WHY THIS SIGNAL?

Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+35.0 / 35

How many distinct insiders bought in the cluster

Purchase size+18.0 / 25

Purchase value relative to company size and liquidity

Role+7.0 / 20

The seniority and relevance of participating insiders

Recency+8.5 / 10

How recently the purchases occurred

Conviction+7.7 / 10

How clearly buying stands out from other activity

What is holding the score back?

  • ⚠ Insider role contributes less on the current role scale
  • ✓ Broad buyer cluster · 4+ distinct filers
  • ✓ Recent activity · latest purchase 2026-10-08

The role contribution follows the US model's seniority ladder.

BUYING PROFILE

8 events · 8 insiders · 180d

Cluster 100%Repeat 0%Independent 0%Large 0%

Percentages are mutually exclusive and sum to 100%.

Buying concentration

13%

Largest buyer：CHERUVATATH NANDAKUMAR · 175k USD
Gross qualified purchase transaction-line value：1.40m USD

The headline $ total is net buying for the screen; this module uses gross qualified purchase transaction-line values in the filing currency, so the amounts can differ. The current 15-day buyer-breadth input counts distinct buyers; value concentration is disclosed separately here.

This is a ranking under the current US screening rules—not a probability of gain, return forecast, or buy recommendation.

Key purchase quotes (filing currency)

FilerPrice per unitTrade date
CHERUVATATH NANDAKUMAR220.3043 USDOct 8, 2026
CULLIGAN THOMAS M220.3043 USDOct 8, 2026
Fine Carol F.220.3043 USDOct 8, 2026
Model details

Cluster breakdown (does not change the score)

15-day buyer breadth (count)
8 distinct reported filers
Peak time window
2026-10-08 to 2026-10-08
Current breadth input
1.000 (capped at 4+ buyers)
Buyer independence
Not yet measured; related-party fields are not cross-market comparable

What the filings show

Insider timeline

8 insiders bought on the same day, 8 Oct: 7 Board member, 1 CEO / chair. That week 73 companies across United States disclosed insider purchases, an ordinary week (24 of the last 26).

Several insiders within 15 days: 2026-10-08 – 2026-10-08Rowen Bradley KRowen Bradley KChief Accounting OfficerExecutiveMENDELSON VICTOR HMENDELSON VICTOR HCo-COB and Co-CEOCEO / chairCHERUVATATH NANDAKUMARCHERUVATATH NANDAKUMARDirectorBoard memberCULLIGAN THOMAS MCULLIGAN THOMAS MDirectorBoard memberFine Carol F.Fine Carol F.DirectorBoard memberHENRIQUES ADOLFOHENRIQUES ADOLFODirectorBoard memberHildebrandt Mark HHildebrandt Mark HDirectorBoard memberNeitzel JulieNeitzel JulieDirectorBoard memberSCHRIESHEIM ALANSCHRIESHEIM ALANDirectorBoard member2026-06-10 · Rowen Bradley K · sale · 320,401 USD2026-10-08 · CHERUVATATH NANDAKUMAR · purchase · 175,142 USD2026-10-08 · CULLIGAN THOMAS M · purchase · 175,142 USD2026-10-08 · Fine Carol F. · purchase · 175,142 USD2026-10-08 · HENRIQUES ADOLFO · purchase · 175,142 USD2026-10-08 · Hildebrandt Mark H · purchase · 175,142 USD2026-10-08 · MENDELSON VICTOR H · purchase · 175,142 USD2026-10-08 · Neitzel Julie · purchase · 174,601 USD2026-10-08 · SCHRIESHEIM ALAN · purchase · 175,142 USD2026-04-20 to 2026-04-26: 74 companies2026-04-27 to 2026-05-03: 96 companies2026-05-04 to 2026-05-10: 151 companies2026-05-11 to 2026-05-17: 232 companies2026-05-18 to 2026-05-24: 259 companies2026-05-25 to 2026-05-31: 171 companies2026-06-01 to 2026-06-07: 192 companies2026-06-08 to 2026-06-14: 172 companies2026-06-15 to 2026-06-21: 163 companies2026-06-22 to 2026-06-28: 108 companies2026-06-29 to 2026-07-05: 93 companies2026-07-06 to 2026-07-12: 80 companies2026-07-13 to 2026-07-19: 79 companies2026-07-20 to 2026-07-26: 70 companies2026-07-27 to 2026-08-02: 77 companies2026-08-03 to 2026-08-09: 131 companies2026-08-10 to 2026-08-16: 200 companies2026-08-17 to 2026-08-23: 218 companies2026-08-24 to 2026-08-30: 184 companies2026-08-31 to 2026-09-06: 175 companies2026-09-07 to 2026-09-13: 139 companies2026-09-14 to 2026-09-20: 186 companies2026-09-21 to 2026-09-27: 134 companies2026-09-28 to 2026-10-04: 130 companies2026-10-05 to 2026-10-11: 73 companies2026-10-12 to 2026-10-18: 59 companiesCompanies disclosing purchases, per weekMayJunJulAugSepOct

Tap an item for what it means.

●A purchase: the bigger the dot, the more was bought

Each dot is one insider's purchases on one day. The dot's area follows the amount: the largest purchase here gets the largest dot. Hold the pointer over a dot to see the date and the amount.

×A sale

A cross is one insider's sales on one day. People sell to pay tax, to cash in share awards or to hold less of one company, so a sale says less than a purchase does. When someone bought and sold on the same day, the cross sits beside the dot. The totals are under “Purchases against sales” below.

▮Purple band: several insiders bought within 15 days

The band marks the stretch with the most different buyers: at most 15 days long and at least two people. Here it is 8 Oct, with 8 insiders. Only the strongest stretch is marked. Several people deciding the same thing is harder to explain by one person's private reasons, but insiders often buy together just after a closed period ends, so compare it with the grey weekly bars.

▂Grey bars: companies across United States disclosing purchases each week

A taller bar is a week in which more companies disclosed insider purchases. The purple bar is the week of the band above: 73 companies, number 24 of the last 26 weeks. If that week was a peak anyway, buying together is less special than it looks.

This company: insiders buying per month, last 12 months

Nov
Dec
Jan
Feb
1Mar
Apr
May
Jun
Jul
Aug
Sep
8Oct

Darker bars are inside the 180-day window above.

Who traded

InsiderRolePurchasesSalesBoughtFirst purchaseShare price since
Rowen Bradley KExecutive—1———
MENDELSON VICTOR HCEO / chair1—175.1k USD2026-10-08—
CHERUVATATH NANDAKUMARBoard member1—175.1k USD2026-10-08—
CULLIGAN THOMAS MBoard member1—175.1k USD2026-10-08—
Fine Carol F.Board member1—175.1k USD2026-10-08—
HENRIQUES ADOLFOBoard member1—175.1k USD2026-10-08—
Hildebrandt Mark HBoard member1—175.1k USD2026-10-08—
Neitzel JulieBoard member1—174.6k USD2026-10-08—
SCHRIESHEIM ALANBoard member1—175.1k USD2026-10-08—

Purchases against sales

81%purchases
Purchases81%1.4M USD · 8 line(s) · 8 insider(s)
Sales19%320.4k USD · 1 line(s) · 1 insider(s)

Shares of the reported value of insider transactions in the 180-day window. Sales include disposals for tax, at option exercise or under a pre-set plan, which say little about an insider's view. The split describes what was disclosed; it is not a signal.

BULL VS BEAR

Two readings of this buying

The same filings, read two ways. Each line is a fact stored for this company with the number behind it, and appears only when that number crosses a fixed threshold. Neither side is a forecast and no winner is declared.

Where the evidence comes from

Nothing independent to compare with: the purchases themselves carry bull lines (several insiders together, more buyers than usual here, large purchases, bought in the last two weeks), but no other source has data here, so they are neither confirmed nor contradicted.

  • The insider purchases themselvesBullseveral insiders together, more buyers than usual here, large purchases, bought in the last two weeks3 checked, under the threshold · 3 missing
  • Share price and tradingno data held
  • Short sellersno data held
  • Company results2 missing
  • Company actionsno data held

Bull case · the buying is informative

  • 8 insiders bought on the same day (2026-10-08). Several people reaching the same decision at the same time is hard to put down to one person's circumstances.
  • 8 insiders bought in the last 180 days against 1 in the 180 days before: more than this company's own recent norm.
  • Insiders committed a net $1.1M of their own money in 180 days.
  • The latest purchase is 10 days old (2026-10-08). The buying is current, not left over from an earlier quarter.

Bear case · discount it

Nothing held here argues against the buying. That is not the same as nothing existing: see the missing evidence below.

Evidence still missing

  • No buyer here has 5 or more completed earlier purchases on record, so there is no track record to weigh.
  • The company's market value is not captured, so the purchases cannot be stated as a share of the business or of its trading volume.
  • No earnings, margin or cash-flow figures are captured for this company. The latest annual and interim reports are where to check whether the business is improving or deteriorating.
  • The 10b5-1 box of these Form 4 filings has not been read, so whether the purchases followed a pre-arranged plan is not known.
  • Form 4 states the shares held after each trade. This site reads that from the SEC's quarterly data, which is published after a quarter ends, so it does not have it yet for these filings. Whether a purchase added 1% to a personal stake or doubled it is in the filing, not on this page.
Checked and under the threshold: 3, 1 close to it
  • BearInsiders sold $320k in the same 180 days, 23% of the amount bought. Counted for the bear side from 25%. close to the threshold
  • BearThe largest buyer accounts for 13% of the value bought. Counted for the bear side from 80%.
  • BearNo insider filing in the last 180 days opened a hedge on this stock.

Both columns arrange stored facts only. They do not change the insider score or the ranking and are not investment advice.

Why this score? · Model details

Priority = 100 × Σ(fixed weight × 0–1 rule-based input)

FactorWeightThis company inputPoint contribution
15-day buyer breadth (count)35%1.00035.0
Qualified-buy size25%0.71918.0
Role informativeness (inverted)20%0.65013.0
Recency10%0.8468.5
Buy/sell conviction10%0.7717.7

This is a heuristic ordering under the current rules, not a calibrated return forecast. It explains why candidates rank differently; the public-filing evidence and data limits are shown below.

Signal history

82.1 / 100

Latest recorded score

↓ -0.7 ptssince the first recorded snapshot on 2026-10-14; 4 calendar days observed
Recorded snapshots
4
First snapshot
2026-10-14

There is not yet a 30-calendar-day comparison; earlier scores are not reconstructed. These are raw signal scores saved when each full scoring run completed. They describe changes in research ranking, not price performance or returns.

Why did it change?

Less than 30 days of comparable history is available, so factor movement is not yet decomposed.

Signal score history

Fixed 0–100 scale; dates are spaced by calendar time.

02550751002026-10-14 · 82.82026-10-15 · 82.62026-10-16 · 82.42026-10-18 · 82.1Oct 14Oct 15Oct 16Oct 18

Recent recorded points

  1. 82.8
  2. 82.6
  3. 82.4
  4. 82.1
View all recorded scores
Snapshot dateSignal score
2026-10-1482.8
2026-10-1582.6
2026-10-1682.4
2026-10-1882.1

Sector context

Industrials

Buying breadth
3.7% (24 / 654 issuers)
Sector rank
#10 / 13

This is sector-level research context. It does not affect the Insider Signal or ranking.

View US sector research →

Insider profile outcomes

Historical performance following insider filings. The company role is translated below each name while preserving the original title.

Events are disclosure-level observations; related disclosures published on the same date may share a return path and may not be statistically independent. This research enrichment does not affect the insider score or ranking.

Hildebrandt Mark HDirector
First purchase in 12M
0/3
Large purchase ≥ $100k
3/4
Cluster buying · 15D
4/4
Buying the dip · ≥20% below prior 52W high
Not classifiable
Routine / opportunistic
Not classifiable
CULLIGAN THOMAS MDirector
First purchase in 12M
0/2
Large purchase ≥ $100k
3/3
Cluster buying · 15D
3/3
Buying the dip · ≥20% below prior 52W high
Not classifiable
Routine / opportunistic
Not classifiable
Fine Carol F.Director
First purchase in 12M
0/2
Large purchase ≥ $100k
3/3
Cluster buying · 15D
3/3
Buying the dip · ≥20% below prior 52W high
Not classifiable
Routine / opportunistic
Not classifiable

Insiders' buying price vs the latest close

No daily prices have been captured for this stock yet.

Buying size vs market trading

Complete price and volume history is not yet available.

Market-data coverage: 0 verified sessions · Latest session: — · Ratio status: Unavailable

Traded value is estimated as close × shares traded, in major currency units. Includes disclosed qualifying purchases; disclosures may lag. Contractual or planned acquisitions are not necessarily discretionary. Ratios describe relative trading size, not market participation or score contributions.

Regulatory filings

Unfold all 20 filings

Results and insider purchases

Results (8-K)Bought within 5 sessionsBought within 20 sessionsBuyers, 20 sessions before
2026-08-2517:13 ET · after the closeFirst session 2026-08-26NoneNone0
2026-05-2716:59 ET · after the closeFirst session 2026-05-28NoneNone0
2026-02-2517:16 ET · after the closeFirst session 2026-02-261 · $999.9KCHERUVATATH NANDAKUMAR1 · $999.9KCHERUVATATH NANDAKUMAR0
2025-12-1817:02 ET · after the closeFirst session 2025-12-19NoneNone0

Results dates are the company's 8-K filings to the SEC under Item 2.02 (results of operations); one filed after the close counts from the next session. Purchases are open-market buys reported on Form 4 (code P), by trade date; a Form 4 can arrive two business days after the trade, so the latest days can still fill in. Facts only; this does not change the score or rank.

Ownership and trading-plan context

Direct / indirect ownershipIndirect, Mixed direct / indirect
10b5-1 filing evidenceNot declared in filing field
Evidence retrieved2026-10-14T22:27:11+00:00

These are accession-level filing fields. Unavailable means the evidence was not fetched or parsed; it is never inferred as “No” and does not adjust the US score.

Filing evidence

These are underlying national-feed records from the 365-day window ending on the saved ranking snapshot. The score uses only the latest 180 days; older qualifying equity purchases remain visible for audit but do not enter the current score. The original filer, role, transaction classification, instrument, price, volume, value and source fields are retained. The first three rows are shown; remaining records can be unfolded for audit. Other transaction types are retained but excluded from the score.

Excluded transactions & classification

10 qualifying purchase disclosure(s) · 10 transaction line(s)

Oct 21, 2025Open market purchase
Hildebrandt Mark H · Director
Class A Common Stock · 400.0 shares × 248.76 USD · 99504.0 USD
Open filing
Mar 4, 2026Open market purchase
CHERUVATATH NANDAKUMAR · Director
Class A Common Stock · 4082.0 shares × 244.95 USD · 999885.8999999999 USD
Open filing
Oct 8, 2026Open market purchase
CHERUVATATH NANDAKUMAR · Director
Class A Common Stock · 795 shares × 220.3043 USD · 175141.9185 USD
Open filing
Unfold all 7 remaining filing row(s)
Transaction datePublishedFilerRoleTransactionInstrumentPrice (local currency)Quote currencyVolumeReported value (local currency)Source
2026-10-082026-10-13CULLIGAN THOMAS MDirectorOpen market purchaseClass A Common Stock220.3043 USDUSD795175141.9185 USDOpen filing
2026-10-082026-10-13Fine Carol F.DirectorOpen market purchaseClass A Common Stock220.3043 USDUSD795175141.9185 USDOpen filing
2026-10-082026-10-13MENDELSON VICTOR HCo-COB and Co-CEOOpen market purchaseClass A Common Stock220.3043 USDUSD795175141.9185 USDOpen filing
2026-10-082026-10-13HENRIQUES ADOLFODirectorOpen market purchaseClass A Common Stock220.3043 USDUSD795175141.9185 USDOpen filing
2026-10-082026-10-13SCHRIESHEIM ALANDirectorOpen market purchaseClass A Common Stock220.3043 USDUSD795175141.9185 USDOpen filing
2026-10-082026-10-13Hildebrandt Mark HDirectorOpen market purchaseClass A Common Stock220.3043 USDUSD795175141.9185 USDOpen filing
2026-10-082026-10-13Neitzel JulieDirectorOpen market purchaseCommon Stock294.9343 USDUSD592174601.1056 USDOpen filing

Showing 10 of 10 matching raw-feed row(s) from the current 365-day research window. Prices and reported values remain in the filing currency and its major unit (for example, UK pence are parsed as GBP). The screen-level $ aggregate is separately FX-normalised for research ranking, not a trade-date conversion.

Other disclosed transactions · excluded from score

View 18 other transaction(s)

Dec 19, 2025Bona fide gift
MENDELSON VICTOR H · Co-COB and Co-CEO
Class A Common Stock · 2660.0 shares × 0.0 USD · 0.0 USD
Open filing
Oct 31, 2025Shares withheld for tax or exercise price
MENDELSON ERIC A · Co-COB and Co-CEO
Common Stock · 38004.0 shares × 317.77 USD · 12076531.08 USD
Open filing
Oct 31, 2025Exercise of derivative security
MENDELSON ERIC A · Co-COB and Co-CEO
Common Stock · 80000.0 shares × 44.96 USD · 3596800.0 USD
Open filing
Unfold all 15 remaining filing row(s)
Transaction datePublishedFilerRoleTransactionInstrumentPrice (local currency)Quote currencyVolumeReported value (local currency)Source
2025-10-312025-11-04Macau Carlos LEVP-CFO & TreasurerExercise of derivative securityClass A Common Stock38.37 USDUSD40000.01534800.0 USDOpen filing
2025-10-312025-11-04Macau Carlos LEVP-CFO & TreasurerShares withheld for tax or exercise priceClass A Common Stock247.73 USDUSD19022.04712320.06 USDOpen filing
2025-10-312025-11-04MENDELSON VICTOR HCo-COB and Co-CEOExercise of derivative securityCommon Stock44.96 USDUSD80000.03596800.0 USDOpen filing
2025-10-312025-11-04MENDELSON VICTOR HCo-COB and Co-CEOShares withheld for tax or exercise priceCommon Stock317.77 USDUSD37930.012053016.1 USDOpen filing
2026-06-102026-06-11Rowen Bradley KChief Accounting OfficerOpen market saleClass A Common Stock241.63 USDUSD1326.0320401.38 USDOpen filing
2026-06-012026-06-02SCHRIESHEIM ALANDirectorBona fide giftClass A Common Stock0.0 USDUSD140.00.0 USDOpen filing
2026-05-292026-06-02Rowen Bradley KChief Accounting OfficerShares withheld for tax or exercise priceClass A Common Stock259.81 USDUSD764.0198494.84 USDOpen filing
2026-05-292026-06-02Rowen Bradley KChief Accounting OfficerExercise of derivative securityClass A Common Stock130.71 USDUSD1400.0182994.0 USDOpen filing
2026-05-292026-06-02Rowen Bradley KChief Accounting OfficerShares withheld for tax or exercise priceClass A Common Stock259.81 USDUSD874.0227073.94 USDOpen filing
2026-05-292026-06-02Rowen Bradley KChief Accounting OfficerExercise of derivative securityClass A Common Stock97.0 USDUSD600.058200.0 USDOpen filing
2026-05-292026-06-02Rowen Bradley KChief Accounting OfficerExercise of derivative securityClass A Common Stock121.39 USDUSD1280.0155379.2 USDOpen filing
2026-05-292026-06-02Rowen Bradley KChief Accounting OfficerShares withheld for tax or exercise priceClass A Common Stock259.81 USDUSD316.082099.96 USDOpen filing
2026-04-152026-04-16Neitzel JulieDirectorOpen market saleClass A Common Stock223.0 USDUSD676.0150748.0 USDOpen filing
2026-09-012026-09-01SCHRIESHEIM ALANDirectorBona fide giftClass A Common Stock0.0 USDUSD125.00.0 USDOpen filing
2026-06-292026-07-01MENDELSON VICTOR HCo-COB and Co-CEOBona fide giftClass A Common Stock0.0 USDUSD3285.00.0 USDOpen filing

Showing 18 of 18 matching raw-feed row(s) from the current 365-day research window. Prices and reported values remain in the filing currency and its major unit (for example, UK pence are parsed as GBP). The screen-level $ aggregate is separately FX-normalised for research ranking, not a trade-date conversion.

Snapshot & identity

Snapshot date
2026-10-18
Ticker
HEI, HEI.A
ISIN
—
Sector
Industrials
Industry
—

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How to read Form 4 transaction codes

CodeInterpretationScreen treatment
POpen-market / private purchaseBuy evidence when the security is qualifying equity
SSaleSell evidence when the security is qualifying equity
AGrant / awardContext only
FTax-related withholdingContext only
MOption exerciseContext only
GGiftContext only
J / LOther / non-directionalContext only

P/S rows for options, warrants, compensation units and debt remain visible for audit but are excluded from equity scores and quotes.