AST SpaceMobile (ASTS) president settles RSU taxes with 15,241 withheld shares

Rhea-AI Filing Summary

AST SpaceMobile, Inc. President Scott Wisniewski reported a tax-related share withholding tied to restricted stock vesting. On the vesting of Restricted Stock Units representing 41,145 shares of Class A Common Stock, 15,241 shares were withheld at $82.87 per share to cover tax obligations, resulting in a net 25,904 shares vesting to him. Following this tax-withholding disposition, he directly holds 771,877 shares of Class A Common Stock. This event reflects a routine compensation and tax-settlement mechanism rather than an open-market sale.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Wisniewski Scott

Role President

Type	Security	Shares	Price	Value
Tax Withholding	Class A Common Stock	15,241	$82.87	$1.26M

Holdings After Transaction: Class A Common Stock — 771,877 shares (Direct)

Footnotes (1)

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Key Figures

Shares withheld for taxes: 15,241 shares Tax-withholding share value: $82.87 per share RSU shares vested: 41,145 shares +2 more

5 metrics

Shares withheld for taxes 15,241 shares Tax-withholding disposition on RSU vesting

Tax-withholding share value $82.87 per share Value used for withheld Class A shares

RSU shares vested 41,145 shares Restricted Stock Units converting into Class A shares

Net shares delivered 25,904 shares Net vested shares after tax withholding

Shares owned after transaction 771,877 shares Direct Class A Common Stock holdings post-transaction

Key Terms

Restricted Stock Units, Rule 16b-3, tax-withholding disposition, 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 41,145 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 41,145 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-withholding disposition financial

"transaction_action": "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

Class A Common Stock financial

"security_title": "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.

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^*

Wisniewski Scott

(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)
	President

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		15,241(1)	D	$82.87	771,877	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 41,145 shares of Class A Common Stock issued in accordance with Rule 16b-3, resulting in a net vested number of 25,904 shares.

	/s/ Scott Wisniewski	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 insider transaction did ASTS President Scott Wisniewski report?

Scott Wisniewski reported a tax-withholding disposition of AST SpaceMobile shares. 15,241 shares of Class A Common Stock were withheld to cover taxes on restricted stock vesting, while 25,904 net shares vested to him as compensation.

Was the ASTS Form 4 transaction an open-market sale by the insider?

No, the Form 4 shows a tax-withholding disposition, not an open-market sale. Shares were withheld by the company to satisfy tax liabilities from Restricted Stock Units vesting, a common non-market compensation-related event.

How many ASTS shares were involved in Scott Wisniewski’s RSU vesting?

Restricted Stock Units representing 41,145 shares of AST SpaceMobile Class A Common Stock vested. Of these, 15,241 shares were withheld to pay taxes, leaving a net 25,904 Class A shares delivered to the executive.

What price was used for the ASTS tax-withholding shares on the Form 4?

The Form 4 reports the tax-withheld shares at a value of $82.87 per share. This price is used solely to calculate the tax-withholding disposition and does not represent an open-market trading price set by the insider.

How many ASTS shares does Scott Wisniewski own after this transaction?

After the tax-withholding disposition and RSU vesting, Scott Wisniewski directly holds 771,877 shares of AST SpaceMobile Class A Common Stock. This reflects his updated ownership position following the compensation-related share delivery and tax settlement.

What is the net share impact of the ASTS RSU vesting for the insider?

The RSU vesting delivered a net 25,904 shares of AST SpaceMobile Class A Common Stock to Scott Wisniewski. 15,241 shares from the 41,145 vested units were withheld by the issuer to satisfy associated tax liabilities.