AST SpaceMobile (NASDAQ: ASTS) CAO nets 4,497 shares after RSU tax withholding

Rhea-AI Filing Summary

AST SpaceMobile, Inc. (ASTS) reported that Chief Accounting Officer Bernal Maya had 2,919 shares of Class A Common Stock withheld on 2026-08-15 to satisfy tax liability associated with the vesting of Restricted Stock Units. The RSU vesting covered 7,416 shares, resulting in a net of 4,497 shares delivered. Following this tax-withholding disposition, Maya directly holds 112,449 shares of Class A Common Stock.

Insider Trade Summary

Net Seller: 2,919 shares

Net Sell 1 txn

Insider Bernal Maya

Role Chief Accounting Officer

Type	Security	Shares	Price	Value
Tax Withholding	Class A Common Stock F1	2,919	$70.98	$207K

Holdings After Transaction: Class A Common Stock — 112,449 shares (Direct)

Footnotes (1)

1. F1. Represents a payment of tax liability by withholding securities incident to the vesting of Restricted Stock Units representing 7,416 shares of Class A Common Stock issued in accordance with Rule 16b-3, resulting in a net vested number of 4,497 shares.

Key Figures

Shares withheld for tax: 2,919 shares RSU shares vested: 7,416 shares Net shares vested: 4,497 shares +2 more

5 metrics

Shares withheld for tax 2,919 shares Shares withheld to pay tax liability on RSU vesting, transaction code F

RSU shares vested 7,416 shares Restricted Stock Units representing 7,416 shares of Class A Common Stock vested

Net shares vested 4,497 shares Net vested shares received after 2,919 shares withheld for tax

Shares owned after transaction 112,449 shares Direct Class A Common Stock holdings by Bernal Maya following the transaction

Per-share value for tax withholding $70.98 per share Valuation applied to withheld shares in the tax-liability transaction

Key Terms

Restricted Stock Units, Rule 16b-3, withholding securities

3 terms

Restricted Stock Units financial

"incident to the vesting of Restricted Stock Units representing 7,416 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.

Rule 16b-3 regulatory

"shares of Class A Common Stock issued in accordance with Rule 16b-3"

Rule 16b-3 is a Securities and Exchange Commission regulation that exempts certain routine, pre-approved transactions by company insiders from automatic liability for short-term trading profits. It acts like a safe harbor: if an insider follows a formal plan or the board approves specific transactions in advance, profits from buying and selling company stock within six months are not automatically reclaimed. Investors care because the rule clarifies when insider trades are permissible and reduces uncertainty about potential clawbacks.

withholding securities financial

"payment of tax liability by withholding securities incident to the vesting"

FAQ

What insider transaction did ASTS report for Bernal Maya on this Form 4?

ASTS reported that Chief Accounting Officer Bernal Maya had 2,919 shares of Class A Common Stock withheld on 2026-08-15 to pay tax liability from RSU vesting, leaving him with 112,449 shares directly owned.

How many ASTS shares vested for Bernal Maya in this RSU event?

A total of 7,416 shares of AST SpaceMobile, Inc. Class A Common Stock vested from Restricted Stock Units, with 2,919 withheld for tax and a net of 4,497 shares issued to Bernal Maya.

What is Bernal Maya’s direct share ownership in ASTS after this transaction?

After the reported tax-withholding transaction, Bernal Maya directly owns 112,449 shares of AST SpaceMobile, Inc. Class A Common Stock, as disclosed in the Form 4 filing for the 2026-08-15 event.

Was the ASTS Form 4 transaction a market sale or a tax withholding?

The Form 4 for ASTS shows a code F transaction, described as payment of tax liability by withholding 2,919 shares incident to RSU vesting, not an open-market purchase or sale of shares.

At what price were the withheld ASTS shares valued for the tax payment?

The 2,919 withheld shares of AST SpaceMobile, Inc. Class A Common Stock were valued at $70.98 per share for the tax payment related to the RSU vesting on 2026-08-15.

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/18/2026 - 06:00 PM Accepted by SEC EDGAR 08/18/2026 - 06:00 PM 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^*

Bernal Maya

(Last) (First) (Middle)

C/O AST SPACEMOBILE, INC., MIDLAND

AIR & SPACE PORT, 2901 ENTERPRISE LANE

(Street)

MIDLAND TEXAS 79706

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
AST SpaceMobile, Inc. [ ASTS ]

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)
08/15/2026

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	08/15/2026		F		2,919(1)	D	$70.98	112,449	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. Represents a payment of tax liability by withholding securities incident to the vesting of Restricted Stock Units representing 7,416 shares of Class A Common Stock issued in accordance with Rule 16b-3, resulting in a net vested number of 4,497 shares.

	/s/ Maya Bernal	08/18/2026
	** 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)