ASTS Form 4: RSU vesting leads to 28,529-share withholding; insider still owns 588,681 shares

Rhea-AI Filing Summary

AST SpaceMobile insider transaction summary: The filing reports that an executive, Scott Wisniewski, had 28,529 shares of Class A common stock disposed as a result of tax withholding tied to the vesting of 72,500 restricted stock units (RSUs). The net number of shares that vested after withholding was 43,971 shares. The disclosed per-share price for the withholding disposition was $49.09. Following the reported transaction, the reporting person beneficially owned 588,681 shares of Class A common stock directly.

Positive

• Continued insider ownership: Reporting person retains 588,681 Class A shares after the transaction, indicating ongoing alignment with shareholders.
• Transaction is tax-related withholding: The disposition resulted from RSU tax settlement rather than an open-market sale, which is a routine equity-plan action.

Negative

• Reduction in share count: 28,529 shares were disposed to satisfy taxes, lowering the reporting person's direct holdings compared with pre-vesting levels.

Insights

Financial Analyst

TL;DR: Routine tax-withholding disposal reduced share count but left substantial insider ownership, indicating retention after vesting.

This Form 4 discloses a common equity withholding to satisfy tax obligations tied to RSU vesting rather than an open-market voluntary sale. The transaction reduced the reporting person’s Class A shares by 28,529 while leaving a material direct stake of 588,681 shares, which suggests continued alignment with shareholder interests. The reported $49.09 per-share withholding price is a bookkeeping metric for the tax settlement; it does not necessarily reflect an active market sale strategy.

Corporate Governance Expert

TL;DR: This is a standard insider tax-withholding event on RSU vesting and generally has neutral governance implications.

The disclosure documents settlement of tax liabilities through share withholding from vested RSUs (72,500 granted, net vested 43,971), a routine mechanism typically approved under equity plans and Rule 16b-3. Such withholding reduces outstanding insider shares but preserves compensation alignment. There is no indication of unusual timing, opportunistic trading, or governance concerns in the filing itself.

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	28,529	$49.09	$1.40M

Holdings After Transaction: Class A Common Stock — 588,681 shares (Direct)

Footnotes (1)

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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).

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 TX 79706

(City) (State) (Zip)

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

3. Date of Earliest Transaction (Month/Day/Year)
09/26/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	09/26/2025		F		28,529(1)	D	$49.09	588,681	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 72,500 shares of Class A Common Stock issued in accordance with Rule 16b-3, resulting in a net vested number of 43,971 shares.

	/s/ Scott Wisniewski	09/29/2025
	** 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.

FAQ

What did ASTS insider Scott Wisniewski do?

He had 28,529 Class A shares disposed to satisfy tax withholding related to the vesting of 72,500 RSUs, leaving 43,971 net vested shares.

Was the transaction an open-market sale?

No. The filing states the disposition was a tax-withholding event incident to RSU vesting, not a voluntary market sale.

How many ASTS shares does the reporting person own after the transaction?

The reporting person beneficially owns 588,681 shares of Class A common stock following the reported transaction.

What price was used for the withheld shares?

The per-share price recorded for the withholding disposition was $49.09.

How many RSUs vested and how many remained after withholding?

72,500 RSUs were subject to withholding, resulting in a net vested amount of 43,971 shares after the withholding of 28,529 shares.