Archer Aviation Inc. Insider Trading Activity

Archer Aviation Inc. Chief Legal & Strategy Officer Eric Lentell reported derivative exercises and vesting of restricted stock units on March 1, 2026.

Rhea-AI Filing Summary

Archer Aviation Inc. Chief Legal & Strategy Officer Eric Lentell reported derivative exercises and vesting of restricted stock units on March 1, 2026. These transactions delivered 93,139 shares of Class A Common Stock at a price of $0.00 per share, with no shares sold.

Insider Trade Summary

93,139 shares exercised/converted

Exercise 10 txns

Insider Lentell Eric

Role Chief Legal & Strategy Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	22,866	$0.00	$0.00
Exercise	Restricted Stock Units	19,796	$0.00	$0.00
Exercise	Restricted Stock Units	8,945	$0.00	$0.00
Exercise	Restricted Stock Units	26,096	$0.00	$0.00
Exercise	Restricted Stock Units	15,436	$0.00	$0.00
Exercise	Class A Common Stock	22,866	$0.00	$0.00
Exercise	Class A Common Stock	19,796	$0.00	$0.00
Exercise	Class A Common Stock	8,945	$0.00	$0.00
Exercise	Class A Common Stock	26,096	$0.00	$0.00
Exercise	Class A Common Stock	15,436	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 548,956 contracts (Direct); Class A Common Stock — 176,872 shares (Direct)

Footnotes (7)

1. F1. Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer.
2. F2. The award vested or vests as to: (i) 1/4 of the total award on August 15, 2023; and (ii) 1/16 of the total award quarterly thereafter on November 15, March 1, May 15, and August 15.
3. F3. These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.
4. F4. The award vested or vests quarterly as to 1/16 of the total award, with the first tranche vested on May 15, 2023, and thereafter on August 15, November 15, March 1, and May 15.
5. F5. The award vested or vests quarterly as to 1/16 of the total award, with the first tranche vested on May 15, 2024, and thereafter on August 15, November 15, March 1, and May 15.
6. F6. The award vested or vests quarterly as to 1/12 of the total award, with the first tranche vested on March 1, 2025, and thereafter on May 15, August 15, November 15, and March 1.
7. F7. The award vested or vests quarterly as to 1/12 of the total award, with the first tranche vested on March 1, 2026, and thereafter on May 15, August 15, November 15, and March 1.

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Accepted by SEC EDGAR 03/03/2026 - 08:25 PM EST Learn about SEC filing dates

SEC 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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Lentell Eric

(Last) (First) (Middle)

C/O ARCHER AVIATION INC.

190 WEST TASMAN DRIVE

(Street)

SAN JOSE CA 95134

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Archer Aviation Inc. [ ACHR ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Legal & Strategy Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/01/2026

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

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

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

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)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	03/01/2026		M		22,866	A	$0	106,599	D
Class A Common Stock	03/01/2026		M		19,796	A	$0	126,395	D
Class A Common Stock	03/01/2026		M		8,945	A	$0	135,340	D
Class A Common Stock	03/01/2026		M		26,096	A	$0	161,436	D
Class A Common Stock	03/01/2026		M		15,436	A	$0	176,872	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(1)	03/01/2026		M			22,866	(2)	(3)	Class A Common Stock	22,866	$0	45,732	D
Restricted Stock Units	(1)	03/01/2026		M			19,796	(4)	(3)	Class A Common Stock	19,796	$0	79,186	D
Restricted Stock Units	(1)	03/01/2026		M			8,945	(5)	(3)	Class A Common Stock	8,945	$0	71,564	D
Restricted Stock Units	(1)	03/01/2026		M			26,096	(6)	(3)	Class A Common Stock	26,096	$0	182,672	D
Restricted Stock Units	(1)	03/01/2026		M			15,436	(7)	(3)	Class A Common Stock	15,436	$0	169,802	D

Explanation of Responses:

1. Each restricted stock unit represents a contingent right to receive one share of the issuer's Class A Common Stock, subject to the reporting person's continued status as a service provider to the issuer.

2. The award vested or vests as to: (i) 1/4 of the total award on August 15, 2023; and (ii) 1/16 of the total award quarterly thereafter on November 15, March 1, May 15, and August 15.

3. These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.

4. The award vested or vests quarterly as to 1/16 of the total award, with the first tranche vested on May 15, 2023, and thereafter on August 15, November 15, March 1, and May 15.

5. The award vested or vests quarterly as to 1/16 of the total award, with the first tranche vested on May 15, 2024, and thereafter on August 15, November 15, March 1, and May 15.

6. The award vested or vests quarterly as to 1/12 of the total award, with the first tranche vested on March 1, 2025, and thereafter on May 15, August 15, November 15, and March 1.

7. The award vested or vests quarterly as to 1/12 of the total award, with the first tranche vested on March 1, 2026, and thereafter on May 15, August 15, November 15, and March 1.

	/s/ Eric Lentell	03/03/2026
	** 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.
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