AST SpaceMobile (NASDAQ: ASTS) president updates Form 4 for RSU tax withholding

Rhea-AI Filing Summary

AST SpaceMobile, Inc. President Scott Wisniewski reported a routine tax-withholding transaction related to restricted stock unit (RSU) vesting. On this Form 4/A, 16,395 shares of Class A Common Stock were withheld to cover tax liabilities when RSUs representing 41,666 shares vested.

After this withholding, the net number of vested shares was 25,271, which were retained as part of his equity position. Following the transaction, Wisniewski directly owned 729,578 shares of Class A Common Stock. The amendment corrects the previously reported withheld amount from 16,377 shares to 16,395 shares.

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	16,395	$113.41	$1.86M

Holdings After Transaction: Class A Common Stock — 729,578 shares (Direct, null)

Footnotes (1)

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 25,271 shares. This amendment is being filed to address a revision in the number of shares withheld from 16,377 to 16,395 for payment of tax liability incident to the vesting of Restricted Stock Units.

Key Figures

Shares withheld for taxes: 16,395 shares RSU shares vested: 41,666 shares Net vested shares: 25,271 shares +2 more

5 metrics

Shares withheld for taxes 16,395 shares Tax-withholding disposition on RSU vesting

RSU shares vested 41,666 shares Restricted Stock Units vesting event

Net vested shares 25,271 shares Net shares after tax withholding

Post-transaction holdings 729,578 shares Direct Class A Common Stock after transaction

Withholding reference price $113.41 per share Value used for tax-withholding disposition

Key Terms

Restricted Stock Units, tax-withholding disposition, Rule 16b-3, Form 4/A

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.

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.

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.

Form 4/A regulatory

"This amendment is being filed to address a revision in the number of shares withheld"

Form 4/A is an amended filing that corrects or updates an earlier Form 4, the mandatory report that insiders (like company executives, directors, or large shareholders) must file when their ownership stakes change. Think of it as an edited receipt showing who bought or sold stock and when; investors use it to track insider confidence, detect potential conflicts, and spot trading patterns that might signal future company prospects.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/02/2026 - 06:30 PM Accepted by SEC EDGAR 07/02/2026 - 06:30 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^*

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)
06/02/2026

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		16,395(1)(2)	D	$113.41	729,578	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 25,271 shares.

2. This amendment is being filed to address a revision in the number of shares withheld from 16,377 to 16,395 for payment of tax liability incident to the vesting of Restricted Stock Units.

	/s/ Scott Wisniewski	07/02/2026
	** 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 AST SpaceMobile (ASTS) President Scott Wisniewski report?

Scott Wisniewski reported a tax-withholding disposition of 16,395 Class A Common shares. These shares were withheld to pay taxes when 41,666 restricted stock units vested, resulting in 25,271 net shares added to his direct holdings.

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 withheld by the company to satisfy tax liabilities arising from the vesting of 41,666 restricted stock units, a common administrative step in equity compensation.

How many AST SpaceMobile shares did Scott Wisniewski hold after this Form 4/A transaction?

After the tax-withholding transaction, Scott Wisniewski directly held 729,578 shares of AST SpaceMobile Class A Common Stock. This figure reflects his position following the RSU vesting and related share withholding for tax obligations.

What correction does this amended Form 4/A for ASTS disclose?

The amendment corrects the number of shares withheld for taxes from 16,377 to 16,395. This revised figure more accurately reflects the shares used to pay tax liabilities from the vesting of 41,666 restricted stock units granted under Rule 16b-3.

How many ASTS restricted stock units vested for Scott Wisniewski in this event?

Restricted stock units representing 41,666 shares of AST SpaceMobile Class A Common Stock vested. Of these, 16,395 shares were withheld to cover tax liabilities, leaving 25,271 net shares that were added to Scott Wisniewski’s directly owned holdings.