Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 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 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 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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(Print or Type Responses)

1. Name and Address of Reporting Person * Lentell Eric 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 (Last) (First) (Middle) C/O ARCHER AVIATION INC., 190 WEST TASMAN DRIVE 3. Date of Earliest Transaction (Month/Day/Year) 05/15/2026 (Street) SAN JOSE, CA 95134 4. If Amendment, Date 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 (City) (State) (Zip) 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 05/15/2026 M 7,301 A $ 0 136,079 D Class A Common Stock 05/15/2026 M 22,866 A $ 0 158,945 D Class A Common Stock 05/15/2026 M 19,796 A $ 0 178,741 D Class A Common Stock 05/15/2026 M 8,946 A $ 0 187,687 D Class A Common Stock 05/15/2026 M 26,096 A $ 0 213,783 D Class A Common Stock 05/15/2026 M 15,437 A $ 0 229,220 D Class A Common Stock 05/15/2026 S(1) 39,967 D $6.0611(2) 189,253 D Class A Common Stock 05/18/2026 S(3) 48,169 D $5.9527(4) 141,084 D

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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 Underlying Securities (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 of Derivative Security: 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	(5)	05/15/2026		A		87,617		(6)	(7)	Class A Common Stock	87,617	$ 0	87,617	D
Restricted Stock Units	(5)	05/15/2026		M			7,301	(6)	(7)	Class A Common Stock	7,301	$ 0	80,316	D
Restricted Stock Units	(5)	05/15/2026		M			22,866	(8)	(7)	Class A Common Stock	22,866	$ 0	22,866	D
Restricted Stock Units	(5)	05/15/2026		M			19,796	(9)	(7)	Class A Common Stock	19,796	$ 0	59,390	D
Restricted Stock Units	(5)	05/15/2026		M			8,946	(10)	(7)	Class A Common Stock	8,946	$ 0	62,618	D
Restricted Stock Units	(5)	05/15/2026		M			26,096	(11)	(7)	Class A Common Stock	26,096	$ 0	156,576	D
Restricted Stock Units	(5)	05/15/2026		M			15,437	(12)	(7)	Class A Common Stock	15,437	$ 0	154,364	D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Lentell Eric C/O ARCHER AVIATION INC. 190 WEST TASMAN DRIVE SAN JOSE, CA 95134			Chief Legal & Strategy Officer

Signatures

/s/ Eric Lentell		05/19/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Represents shares of Class A Common Stock sold to satisfy tax withholding obligations incurred in connection with the vesting of performance restricted stock units, which was separately reported on a Form 4 filed with the U.S. Securities and Exchange Commission on April 22, 2026.
(2)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.005 to $6.135 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote and in footnote 4 of this Form 4.
(3)	Represents shares of Class A Common Stock sold to satisfy tax withholding obligations incurred in connection with the vesting of restricted stock units.
(4)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.87 to $6.13 per share, inclusive.
(5)	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.
(6)	The award shall vest as to 1/12 of the total award beginning on May 15, 2026, and thereafter quarterly on August 15th, November 15th, March 1st, May 15th.
(7)	These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.
(8)	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.
(9)	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.
(10)	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.
(11)	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.
(12)	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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