AST SpaceMobile (ASTS) COO reports RSU vesting and tax share withholding

Rhea-AI Filing Summary

AST SpaceMobile, Inc. Chief Operating Officer Shanti B. Gupta reported a routine tax-related share disposition. On the vesting of Restricted Stock Units representing 18,229 shares of Class A Common Stock, 8,357 shares were withheld to cover tax liabilities, leaving a net 9,872 shares vested. After this withholding, Gupta directly holds 378,705 shares of Class A Common Stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Gupta Shanti B.

Role Chief Operating Officer

Type	Security	Shares	Price	Value
Tax Withholding	Class A Common Stock	8,357	$82.87	$693K

Holdings After Transaction: Class A Common Stock — 378,705 shares (Direct)

Footnotes (1)

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Key Figures

Shares withheld for taxes: 8,357 shares Tax withholding price: $82.87 per share RSUs vested: 18,229 shares +2 more

5 metrics

Shares withheld for taxes 8,357 shares Tax-withholding disposition on RSU vesting

Tax withholding price $82.87 per share Price used for 8,357 withheld shares

RSUs vested 18,229 shares Restricted Stock Units converting to Class A Common Stock

Net shares vested 9,872 shares Shares received after tax withholding on RSU vesting

Shares held after transaction 378,705 shares Direct Class A Common Stock holdings after withholding

Key Terms

Restricted Stock Units, Rule 16b-3, tax liability, Class A Common Stock

4 terms

Restricted Stock Units financial

"Represents a payment of tax liability by withholding securities incident to the vesting of Restricted Stock Units representing 18,229 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

"Restricted Stock Units representing 18,229 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.

tax liability financial

"Represents a payment of tax liability by withholding securities incident to the vesting of Restricted Stock Units"

Class A Common Stock financial

"Restricted Stock Units representing 18,229 shares of Class A Common Stock issued in accordance with Rule 16b-3"

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.

Form 4 Insider Transactions: What Each Field Means →

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^*

Gupta Shanti B.

(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 Operating Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/31/2026

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	03/31/2026		F		8,357(1)	D	$82.87	378,705	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 18,229 shares of Class A Common Stock issued in accordance with Rule 16b-3, resulting in a net vested number of 9,872 shares.

	/s/ Shanti Gupta	04/02/2026
	** 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)

FAQ

What did ASTS Chief Operating Officer Shanti B. Gupta report in this Form 4 filing?

Shanti B. Gupta reported a tax-related share disposition. 8,357 Class A shares were withheld to cover tax liability when Restricted Stock Units representing 18,229 shares vested, resulting in a net 9,872 shares vested and 378,705 shares held afterward.

Was the ASTS Form 4 transaction an open-market sale of shares?

No, the transaction was not an open-market sale. It was a tax-withholding disposition, where 8,357 shares of Class A Common Stock were withheld to satisfy tax liability when 18,229 Restricted Stock Units vested for the Chief Operating Officer.

How many ASTS shares did Shanti B. Gupta hold after the tax withholding event?

Following the tax-withholding disposition, Shanti B. Gupta directly held 378,705 shares of AST SpaceMobile Class A Common Stock. This figure reflects her ownership after 8,357 shares were withheld for taxes on the vesting of 18,229 Restricted Stock Units.

What do the 18,229 ASTS Restricted Stock Units represent in this filing?

The 18,229 Restricted Stock Units represent equity awards that vested into Class A Common Stock. When they vested, 8,357 shares were withheld to cover tax liability, resulting in a net 9,872 shares delivered to Chief Operating Officer Shanti B. Gupta under Rule 16b-3.

What is the significance of the $82.87 price in the ASTS Form 4 filing?

The $82.87 figure is the price per share used for the tax-withholding disposition. It applies to the 8,357 Class A shares withheld to pay tax liability upon vesting of 18,229 Restricted Stock Units, as disclosed in the Form 4 transaction details.

How many shares were net vested to Shanti B. Gupta in this ASTS transaction?

Net vested shares totaled 9,872 for Shanti B. Gupta. From 18,229 Restricted Stock Units that vested into Class A Common Stock, 8,357 shares were withheld to cover tax liability, leaving 9,872 shares delivered to her as disclosed in the footnote.