[Form 4] Archer Aviation Inc. Insider Trading Activity

Rhea-AI Filing Summary

Director Maria Pinelli of Archer Aviation (ACHR) reported the vesting of 54,644 Restricted Stock Units (RSUs) on June 21, 2025. The RSUs were converted into an equal number of Class A Common Stock shares at an exercise price of $0.

Following the transaction, Pinelli directly owns 182,685 shares of Class A Common Stock. The RSUs were subject to vesting conditions that included either:

• One year anniversary of the grant date, or
• The date of Archer Aviation's 2025 annual stockholders' meeting

This Form 4 filing, executed by Attorney-in-Fact Eric Lentell on June 24, 2025, represents a standard equity compensation arrangement for the director. The transaction was reported within the required timeframe under SEC regulations.

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

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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^*

Pinelli Maria

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
06/21/2025

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	06/21/2025		M		54,644	A	$0	182,685	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)	06/21/2025		M			54,644	(2)	(3)	Class A Common Stock	54,644	$0	0	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 service to the Issuer as of the applicable vesting date.

2. The entire award vested or vests on the earlier of the: (i) one year anniversary of the grant date or (ii) date of the Issuer's 2025 annual stockholders' meeting.

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

	/s/ Eric Lentell, Attorney-in-Fact for Maria Pinelli	06/24/2025
	** 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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FAQ

What insider transaction occurred at ACHR on June 21, 2025?

Director Maria Pinelli acquired 54,644 shares of ACHR Class A Common Stock through the vesting of Restricted Stock Units (RSUs) at $0 exercise price, bringing her total direct ownership to 182,685 shares.

How many ACHR shares does Director Maria Pinelli own after the June 2025 transaction?

Following the reported transaction, Maria Pinelli directly owns 182,685 shares of ACHR Class A Common Stock.

What were the vesting terms for ACHR Director Pinelli's RSUs?

The RSUs were set to vest on the earlier of: (i) one year anniversary of the grant date or (ii) the date of ACHR's 2025 annual stockholders' meeting. Each RSU represented a right to receive one share of Class A Common Stock.

When was ACHR's Form 4 filed for Director Pinelli's transaction?

The Form 4 was filed on June 28, 2025, reporting a transaction that occurred on June 21, 2025. The form was signed by Eric Lentell as Attorney-in-Fact for Maria Pinelli on June 24, 2025.