AST SpaceMobile (ASTS) president reports tax-withholding share disposition

Rhea-AI Filing Summary

AST SpaceMobile President Scott Wisniewski reported a routine tax-withholding share disposition related to equity compensation. On the vesting of Restricted Stock Units representing 41,666 shares of Class A Common Stock, 16,377 shares were withheld to cover tax obligations, resulting in 25,289 net vested shares. Following this withholding, he holds 729,596 Class A Common shares directly.

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	16,377	$113.41	$1.86M

Holdings After Transaction: Class A Common Stock — 729,596 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Tax-withheld shares: 16,377 shares RSUs vested: 41,666 shares Net vested shares: 25,289 shares +2 more

5 metrics

Tax-withheld shares 16,377 shares Shares withheld to pay tax liability on RSU vesting

RSUs vested 41,666 shares Restricted Stock Units representing Class A Common Stock vested

Net vested shares 25,289 shares Shares delivered after tax withholding on RSU vesting

Post-transaction holdings 729,596 shares Class A Common Stock held directly after transaction

Reference price per share $113.41 per share Price used for tax-withholding share valuation

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 41,666 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 41,666 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" for 16,377 shares"

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" and RSUs representing 41,666 shares"

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.

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

Add on Google Not now

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)
05/30/2026

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	05/30/2026		F		16,377(1)	D	$113.41	729,596	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 41,666 shares of Class A Common Stock issued in accordance with Rule 16b-3, resulting in a net vested number of 25,289 shares.

	/s/ Scott Wisniewski	06/02/2026
	** 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 shares tied to equity compensation. 16,377 Class A shares were withheld to pay taxes upon vesting of 41,666 Restricted Stock Units, leaving 25,289 net vested shares and 729,596 shares held directly afterward.

Was the ASTS insider transaction an open-market sale or a tax withholding?

The transaction was a tax withholding, not an open-market sale. Shares were automatically withheld to satisfy tax liability when 41,666 Restricted Stock Units vested, with 16,377 shares used for taxes and 25,289 shares delivered to the insider as net vested stock.

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

After the tax-withholding disposition, Scott Wisniewski directly holds 729,596 shares of AST SpaceMobile Class A Common Stock. This figure reflects his position following the vesting of 41,666 Restricted Stock Units and the withholding of 16,377 shares to cover related tax obligations.

How many ASTS Restricted Stock Units vested in this insider event?

Restricted Stock Units representing 41,666 AST SpaceMobile Class A shares vested in this event. To cover tax liabilities, 16,377 shares were withheld, and the remaining 25,289 shares were delivered as net vested stock to President Scott Wisniewski under Rule 16b-3 arrangements.

Does this ASTS insider filing indicate a discretionary share sale by management?

The filing reflects a tax-withholding disposition, not a discretionary market sale. Shares were withheld automatically when 41,666 Restricted Stock Units vested, using 16,377 shares to pay taxes and delivering 25,289 shares, leaving the insider with 729,596 shares held directly afterward.

What does the tax-withholding disposition code F mean in the ASTS insider report?

Code F indicates shares were withheld to cover tax liabilities or exercise costs. In this AST SpaceMobile transaction, 16,377 shares were withheld upon vesting of 41,666 Restricted Stock Units, resulting in 25,289 net shares issued to the insider rather than an open-market sale.