Archer Aviation CAO sells shares for tax withholding

Archer Aviation’s Chief Accounting Officer Harsh Rungta reported equity compensation activity and a related share sale.

Rhea-AI Filing Summary

Archer Aviation’s Chief Accounting Officer Harsh Rungta reported equity compensation activity and a related share sale. He exercised vested restricted stock units into 34,166 shares of Class A common stock, at a stated conversion price of $0.00 per share.

To cover tax withholding obligations from this vesting, he sold 12,414 shares of Class A common stock at a weighted average price of $5.9527 per share, with individual sale prices ranging from $5.87 to $6.13. Following these transactions, he directly holds 87,210 shares of Class A common stock and 152,272 restricted stock units that remain outstanding and subject to vesting conditions.

Insider Trade Summary

Exercise and sale activity reported; no spread calculated

Exercise and Sale 5 txns

Insider Rungta Harsh

Role Chief Accounting Officer

Sold 12,414 shs ($74K)

Approx. gross sale proceeds $74K

Approx. exercise cost $0.00

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	12,414	$5.9527	$74K
Exercise	Restricted Stock Units	21,754	$0.00	$0.00
Exercise	Restricted Stock Units	12,412	$0.00	$0.00
Exercise	Class A Common Stock	21,754	$0.00	$0.00
Exercise	Class A Common Stock	12,412	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 288,809 contracts (Direct); Class A Common Stock — 87,210 shares (Direct)

Footnotes (6)

1. F1. Represents shares of Class A Common Stock sold to satisfy tax withholding obligations incurred in connection with the vesting of restricted stock units.
2. F2. 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. 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 range set forth in this footnote.
3. F3. 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.
4. F4. The award vested or vests as to: (i) 1/3 of the total award on March 1, 2026; and (ii) 1/12 of the total award quarterly thereafter on May 15, August 15, November 15, and March 1.
5. F5. These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.
6. F6. The award vested or vests quarterly as to 1/12 of the total award, with the first tranche vesting on May 15, 2026, and vesting thereafter on August 15, November 15, March 1, and May 15.

Key Figures

Shares sold for taxes: 12,414 shares Weighted average sale price: $5.9527 per share RSUs converted to shares: 34,166 shares +3 more

6 metrics

Shares sold for taxes 12,414 shares Class A common stock sold on May 18, 2026

Weighted average sale price $5.9527 per share Sales between $5.87 and $6.13 per share

RSUs converted to shares 34,166 shares Class A common stock from RSU exercises on May 15, 2026

Conversion price $0.00 per share RSU-to-share conversion price

Shares held after transactions 87,210 shares Direct Class A common stock ownership after reported trades

RSUs outstanding 152,272 units Restricted stock units remaining after vesting and conversion

Key Terms

Restricted Stock Units, weighted average price, tax withholding obligations, derivative exercise/conversion, +1 more

5 terms

Restricted Stock Units financial

"security_title: "Restricted Stock Units" and footnote describing contingent right to shares"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

tax withholding obligations financial

"shares of Class A Common Stock sold to satisfy tax withholding obligations incurred in connection with the vesting"

derivative exercise/conversion financial

"transaction_action: "derivative exercise/conversion" for RSU-related entries"

vesting financial

"The award vested or vests as to 1/3 of the total award on March 1, 2026; and 1/12 quarterly thereafter"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Accepted by SEC EDGAR 05/19/2026 - 08:17 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^*

Rungta Harsh

(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 Accounting Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/15/2026

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	05/15/2026		M		21,754	A	$0	87,212	D
Class A Common Stock	05/15/2026		M		12,412	A	$0	99,624	D
Class A Common Stock	05/18/2026		S(1)		12,414	D	$5.9527(2)	87,210	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	(3)	05/15/2026		M			21,754	(4)	(5)	Class A Common Stock	21,754	$0	152,272	D
Restricted Stock Units	(3)	05/15/2026		M			12,412	(6)	(5)	Class A Common Stock	12,412	$0	136,537	D

Explanation of Responses:

1. Represents shares of Class A Common Stock sold to satisfy tax withholding obligations incurred in connection with the vesting of restricted stock units.

2. 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. 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 range set forth in this footnote.

3. 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.

4. The award vested or vests as to: (i) 1/3 of the total award on March 1, 2026; and (ii) 1/12 of the total award quarterly thereafter on May 15, August 15, November 15, and March 1.

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

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

	/s/ Eric Lentell as attorney-in-fact for Harsh Rungta	05/19/2026
	** 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)