STOCK TITAN

Archer Aviation (ACHR) director adds shares and new RSU grant

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Archer Aviation Inc. director Deborah Diaz reported routine equity compensation changes. She exercised previously granted restricted stock units, receiving 19,102 shares of Class A Common Stock at no cash exercise price, bringing her direct Class A holdings to 172,632 shares.

Diaz also received a new grant of 40,983 restricted stock units, each representing one future share of Class A Common Stock. According to the award terms, this grant will vest in full on the earlier of one year from the grant date or the date of Archer Aviation’s 2027 annual stockholders’ meeting, subject to her continued service.

Positive

  • None.

Negative

  • None.
Insider Diaz Deborah
Role null
Type Security Shares Price Value
Exercise Restricted Stock Units 19,102 $0.00 --
Grant/Award Restricted Stock Units 40,983 $0.00 --
Exercise Class A Common Stock 19,102 $0.00 --
Holdings After Transaction: Restricted Stock Units — 0 shares (Direct, null); Class A Common Stock — 172,632 shares (Direct, null)
Footnotes (1)
  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 on the applicable vesting date. 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 2026 annual stockholders' meeting. These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date. The entire award will vest on the earlier of the: (i) one year anniversary of the grant date or (ii) date of the Issuer's 2027 annual stockholders' meeting.
Shares acquired via RSU exercise 19,102 shares Class A Common Stock received from RSU conversion on June 26, 2026
Shares held after transactions 172,632 shares Direct holdings of Class A Common Stock following Form 4 transactions
New RSU grant size 40,983 units Restricted stock units granted on June 26, 2026
RSUs underlying shares 40,983 shares Each RSU represents one share of Class A Common Stock
Derivative exercises reported 1 transaction Exercise or conversion of derivative security coded as M
Equity awards acquired 3 transactions All reported transactions classified as acquire in transactionSummary
Restricted Stock Units financial
"Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock"
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.
Class A Common Stock financial
"Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock"
Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.
vesting financial
"subject to the reporting person's continued service to the Issuer on the applicable vesting date"
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.
annual stockholders' meeting financial
"The entire award will vest on the earlier of the: (i) one year anniversary of the grant date or (ii) date of the Issuer's 2027 annual stockholders' meeting."
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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED 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*
Diaz Deborah

(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)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/26/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Class A Common Stock06/26/2026M19,102A$0172,632D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Units(1)06/26/2026M19,102 (2) (3)Class A Common Stock19,102$00D
Restricted Stock Units(1)06/26/2026A40,983 (4) (3)Class A Common Stock40,983$040,983D
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 on 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 2026 annual stockholders' meeting.
3. These restricted stock units do not expire; they either vest or are cancelled prior to the vesting date.
4. The entire award will vest on the earlier of the: (i) one year anniversary of the grant date or (ii) date of the Issuer's 2027 annual stockholders' meeting.
/s/ Eric Lentell, Attorney-in-Fact for Deborah Diaz06/30/2026
** Signature of Reporting PersonDate
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)

FAQ

What insider transactions did Archer Aviation (ACHR) director Deborah Diaz report?

Deborah Diaz reported equity compensation activity, not open-market trades. She exercised restricted stock units for 19,102 Class A shares and received a new grant of 40,983 restricted stock units, all held directly in her name as part of her director compensation.

How many Archer Aviation Class A shares does Deborah Diaz hold after this Form 4?

After these transactions, Deborah Diaz directly holds 172,632 shares of Archer Aviation Class A Common Stock. This reflects the addition of 19,102 shares received from restricted stock unit vesting and exercise, as reported in the Form 4 insider filing.

What new restricted stock unit grant did Deborah Diaz receive from Archer Aviation (ACHR)?

Diaz received a new award of 40,983 restricted stock units, each representing one future share of Class A Common Stock. The entire award will vest on the earlier of one year after the grant date or Archer Aviation’s 2027 annual stockholders’ meeting, assuming continued service.

When do Deborah Diaz’s Archer Aviation restricted stock units vest?

The newly granted 40,983 restricted stock units vest in full on the earlier of one year from the grant date or the date of Archer Aviation’s 2027 annual stockholders’ meeting. Previously vested units followed a similar schedule tied to the 2026 annual stockholders’ meeting.

Did Archer Aviation director Deborah Diaz buy or sell ACHR shares on the open market?

The Form 4 does not show any open-market purchases or sales. It reports a derivative exercise, where restricted stock units converted into 19,102 Class A shares, and a new grant of 40,983 restricted stock units as part of her director compensation package.