Archer Aviation officer receives 78,659 share award

Archer Aviation Inc. reported that Chief Legal & Strategy Officer Eric Lentell acquired 78,659 shares of Class A common stock through vesting of a performance-based restricted stock unit award.

Rhea-AI Filing Summary

Archer Aviation Inc. reported that Chief Legal & Strategy Officer Eric Lentell acquired 78,659 shares of Class A common stock through vesting of a performance-based restricted stock unit award. This represents the second of three tranches from a March 26, 2024 performance-based RSU grant.

On April 20, 2026, the compensation committee certified that the vesting criteria tied to relative total stockholder return were achieved for the two-year performance period from March 26, 2024 to March 26, 2026, causing one-third of the award to vest at 164.87% of its target amount. Following this vesting, Lentell directly holds 128,778 shares.

Insider Trade Summary

Grant/Award: 78,659 shares

Grant/Award 1 txn

Insider Lentell Eric

Role Chief Legal & Strategy Officer

Type	Security	Shares	Price	Value
Grant/Award	Class A Common Stock	78,659	$0.00	$0.00

Holdings After Transaction: Class A Common Stock — 128,778 shares (Direct)

Footnotes (2)

1. F1. The reported transaction represents the vesting of the second of three tranches of a March 26, 2024 performance-based restricted stock unit award granted to the reporting person by the Issuer's compensation committee, which vests based on the achievement of a relative total stockholder return over a defined performance period (the "2024 Performance Award") and is subject to the reporting person's continued service through the vesting date.
2. F2. On April 20, 2026 (the "Certification Date"), the Issuer's compensation committee certified achievement of the vesting criteria of the second tranche of the 2024 Performance Award, resulting in one-third of the 2024 Performance Award vesting at 164.87% of the target amount granted for the two-year performance period beginning on March 26, 2024 and ending on March 26, 2026. The performance restricted stock units comprising the second tranche of the 2024 Performance Award will be settled for shares of the Issuer's Class A common stock shortly following the Certification Date.

Key Figures

Shares acquired via vesting: 78,659 shares Shares held after transaction: 128,778 shares Vesting level vs target: 164.87% +4 more

7 metrics

Shares acquired via vesting 78,659 shares Class A Common Stock, performance RSU tranche

Shares held after transaction 128,778 shares Direct ownership following April 20, 2026 vesting

Vesting level vs target 164.87% Second tranche of 2024 Performance Award

Transaction price per share $0.00 per share Equity compensation grant/award acquisition

Performance period start March 26, 2024 Beginning of two-year performance period

Performance period end March 26, 2026 End of two-year performance period

Certification date April 20, 2026 Committee certified vesting criteria achievement

Key Terms

performance-based restricted stock unit award, relative total stockholder return, defined performance period, vesting criteria, +1 more

5 terms

performance-based restricted stock unit award financial

"the second of three tranches of a March 26, 2024 performance-based restricted stock unit award granted to the reporting person"

A performance-based restricted stock unit award is a promise to give company shares to an employee or executive only if the business hits specific targets over a set period. Think of it as a conditional prize that vests like a savings plan: if agreed goals (such as revenue, profit, or stock performance) are met, the recipient receives the shares; if not, they get nothing. Investors pay attention because these awards align management incentives with company results and can affect share count, future earnings and executive behavior.

relative total stockholder return financial

"which vests based on the achievement of a relative total stockholder return over a defined performance period"

defined performance period financial

"relative total stockholder return over a defined performance period (the "2024 Performance Award")"

vesting criteria financial

"the compensation committee certified achievement of the vesting criteria of the second tranche"

performance restricted stock units financial

"The performance restricted stock units comprising the second tranche of the 2024 Performance Award will be settled"

Performance restricted stock units (PRSUs) are promises to deliver company shares to employees or executives only if the business meets specific performance targets and any time-based holding rules. Think of them as a bonus that converts into stock only after set goals are reached, so investors watch PRSUs for two reasons: they can dilute existing shares if paid out, and they signal how closely management’s pay is tied to company performance.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Archer Aviation (ACHR) report for Eric Lentell?

Archer Aviation reported that Chief Legal & Strategy Officer Eric Lentell acquired 78,659 Class A common shares through vesting of a performance-based restricted stock unit award, with no purchase price, as part of his equity compensation package tied to company performance.

How many Archer Aviation (ACHR) shares does Eric Lentell hold after this Form 4?

After this transaction, Eric Lentell directly holds 128,778 shares of Archer Aviation Class A common stock. This total reflects the addition of 78,659 shares that vested from a performance-based restricted stock unit award certified by the compensation committee.

What performance period governed the Archer Aviation 2024 Performance Award for Eric Lentell?

The 2024 Performance Award for Eric Lentell is based on a two-year performance period from March 26, 2024 to March 26, 2026. Vesting depends on achieving relative total stockholder return targets over this defined interval, as certified by Archer Aviation’s compensation committee.

At what level did the second tranche of Archer Aviation’s 2024 Performance Award vest?

The second tranche of Archer Aviation’s 2024 Performance Award vested at 164.87% of the target amount. This vesting level was certified by the compensation committee after it determined that the relative total stockholder return performance criteria for the applicable two-year period were achieved.

What triggered the vesting of Eric Lentell’s Archer Aviation performance RSUs?

Vesting was triggered when Archer Aviation’s compensation committee certified, on April 20, 2026, that the vesting criteria for the second tranche of the 2024 Performance Award were met. These criteria were based on relative total stockholder return over a defined two-year performance period.

How many tranches are in Archer Aviation’s 2024 Performance Award granted to Eric Lentell?

The 2024 Performance Award granted to Eric Lentell consists of three tranches. The reported Form 4 covers the vesting of the second tranche, with each tranche tied to performance-based vesting conditions and requiring continued service through the applicable vesting dates.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/22/2026 - 08:00 PM EDT 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 CALIFORNIA 95134

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/20/2026

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)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	04/20/2026		A(1)(2)		78,659	A	$0	128,778	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

Explanation of Responses:

1. The reported transaction represents the vesting of the second of three tranches of a March 26, 2024 performance-based restricted stock unit award granted to the reporting person by the Issuer's compensation committee, which vests based on the achievement of a relative total stockholder return over a defined performance period (the "2024 Performance Award") and is subject to the reporting person's continued service through the vesting date.

2. On April 20, 2026 (the "Certification Date"), the Issuer's compensation committee certified achievement of the vesting criteria of the second tranche of the 2024 Performance Award, resulting in one-third of the 2024 Performance Award vesting at 164.87% of the target amount granted for the two-year performance period beginning on March 26, 2024 and ending on March 26, 2026. The performance restricted stock units comprising the second tranche of the 2024 Performance Award will be settled for shares of the Issuer's Class A common stock shortly following the Certification Date.

	/s/ Eric Lentell	04/22/2026
	** 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)