SEC FORM 4

SEC FORM 4SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

MENDELSON ERIC A

(Last)

(First)

(Middle)

825 BRICKELL BAY DRIVE, SUITE 1644

(Street)

MIAMI

FLORIDA

33131

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
HEICO CORP [ HEI, HEI.A ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)	X	Other (specify below)
	Co-COB and Co-CEO		Member of 10% owner group

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/27/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock								1,266,407	D
Class A Common Stock								148,891	D
Common Stock								15,227	I	By Keogh Account
Class A Common Stock								10,078	I	By Keogh Account
Common Stock								427,326	I	By Trusts⁽¹⁾
Class A Common Stock								189,030	I	Owned by Corporation⁽²⁾
Common Stock								392,718	I	Owned by Partnership⁽³⁾
Common Stock								4,522	I	As custodian for children
Class A Common Stock								5,204	I	As custodian for children
Common Stock								112,514	I	By 401(k)⁽⁴⁾
Class A Common Stock								107,245	I	By 401(k)⁽⁴⁾
Common Stock								6,302	I	By 409A Plan⁽⁵⁾
Class A Common Stock								10,042	I	By 409A Plan⁽⁵⁾

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Option (Right to purchase Common Stock)	$44.9638							⁽⁶⁾	03/17/2027	Common Stock	115,313		115,313	D
Option (Right to purchase Common Stock)	$70.656							⁽⁶⁾	03/16/2028	Common Stock	125,000		125,000	D
Option (Right to purchase Common Stock)	$134.7							⁽⁶⁾	09/24/2031	Common Stock	125,000		125,000	D
Option (Right to purchase Common Stock)	$163.35							⁽⁶⁾	03/17/2033	Common Stock	62,500		62,500	D
Option (Right to purchase Common Stock)	$163.61							⁽⁶⁾	06/09/2033	Common Stock	62,500		62,500	D
Option (Right to purchase Common Stock)	$256.01	05/27/2026		A		10,000		05/27/2026⁽⁷⁾	03/14/2035	Common Stock	10,000	$0	10,000	D

Explanation of Responses:

1. Represents shares gifted by the Reporting Person to trusts for the benefit of the Reporting Person's immediate family members and whose Trustee is the Reporting Person.

2. Represents shares owned by Mendelson International Corporation whose stock is owned solely by the Reporting Person and Victor Mendelson, the brother of the Reporting Person.

3. Represents shares owned by EAM Management Limited Partners, a partnership whose sole general partner is a corporation controlled by the Reporting Person.

4. Represents shares held for the benefit of the Reporting Person by the HEICO Corporation 401(k), based on a plan statement dated May 26, 2026.

5. Represents shares held for the Reporting Person by the HEICO Leadership Compensation Plan (409A Plan).

6. These options are exercisable at 20% per year over five years from the date of grant.

7. Represents the vesting of the first tranche (20%) of performance-based stock options originally granted on March 14, 2025. Vesting occurred upon certification by the Compensation Committee on May 27, 2026 that the applicable performance conditions for the first measurement interval were achieved.

Remarks:

	/s/ Eric A. Mendelson	05/29/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

SEC Form 4 filed by Co-COB and Co-CEO Mendelson Eric A