AST SpaceMobile CTO awarded 30,000 RSUs

AST SpaceMobile, Inc. disclosed that Chief Technology Officer Yao Huiwen received an equity compensation award tied to future service.

Rhea-AI Filing Summary

AST SpaceMobile, Inc. disclosed that Chief Technology Officer Yao Huiwen received an equity compensation award tied to future service. On May 22, 2026, Yao acquired 30,000 shares of Class A Common Stock at $0.00 per share through a grant of restricted stock units.

The RSUs will vest in three tranches: one third on the first anniversary of May 15, 2026, one third on the second anniversary of that date, and one third on September 30, 2028, subject to continued service. After this award, Yao directly holds 74,750 shares of Class A Common Stock.

Insider Trade Summary

Grant/Award: 30,000 shares

Grant/Award 1 txn

Insider Yao Huiwen

Role Chief Technology Officer

Type	Security	Shares	Price	Value
Grant/Award	Class A Common Stock	30,000	$0.00	$0.00

Holdings After Transaction: Class A Common Stock — 74,750 shares (Direct)

Footnotes (1)

1. F1. Represents a grant of restricted stock units ("RSUs") that will vest one third on the first and second anniversary of May 15, 2026 and one third on September 30, 2028, subject to the Reporting Person's continued service through the vesting date. Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

Key Figures

RSU grant size: 30,000 shares Grant price per share: $0.00 per share Post-award holdings: 74,750 shares +3 more

6 metrics

RSU grant size 30,000 shares Restricted stock units awarded on May 22, 2026

Grant price per share $0.00 per share RSU award acquisition cost

Post-award holdings 74,750 shares Class A Common Stock held directly after transaction

First vesting fraction One third of 30,000 RSUs Vests on first anniversary of May 15, 2026

Second vesting fraction One third of 30,000 RSUs Vests on second anniversary of May 15, 2026

Final vesting fraction One third of 30,000 RSUs Vests on September 30, 2028

Key Terms

restricted stock units ("RSUs"), Class A Common Stock, vesting

3 terms

restricted stock units ("RSUs") financial

"Represents a grant of restricted stock units ("RSUs") that will vest one third"

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

Class A Common Stock financial

"Each RSU represents a contingent right to receive one share of the Issuer's 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.

vesting financial

"RSUs that will vest one third on the first and second anniversary of May 15, 2026 and one third on September 30, 2028"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did ASTS Chief Technology Officer Yao Huiwen report?

ASTS Chief Technology Officer Yao Huiwen reported an equity award of 30,000 Class A Common shares via restricted stock units at $0.00 per share. This is a compensation-related grant, not an open-market purchase or sale, and increases his direct ownership stake in the company.

How many AST SpaceMobile (ASTS) shares does Yao Huiwen hold after this Form 4?

After the reported RSU grant, Yao Huiwen holds 74,750 shares of AST SpaceMobile Class A Common Stock directly. This figure reflects his position following the award of 30,000 restricted stock units that convert into one share of common stock for each vested unit.

What are the vesting terms of Yao Huiwen’s ASTS restricted stock units?

The 30,000 restricted stock units vest in three equal tranches: one third on the first anniversary of May 15, 2026, one third on the second anniversary, and the final third on September 30, 2028. Vesting requires Yao’s continued service through each vesting date.

Is Yao Huiwen’s ASTS Form 4 transaction an open-market buy or sell?

The Form 4 transaction is not an open-market buy or sell. It is a compensation-related grant coded as an acquisition (A), where 30,000 restricted stock units were awarded at $0.00 per share, representing a contingent right to receive common stock upon vesting.

What does each RSU in Yao Huiwen’s ASTS award represent?

Each RSU in the award represents a contingent right to receive one share of AST SpaceMobile’s Class A Common Stock. The units convert into shares only as they vest over time, and vesting is conditioned on Yao’s continued service with the company through the specified dates.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/26/2026 - 06:00 PM EDT 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^*

Yao Huiwen

(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 Technology Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/22/2026

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	05/22/2026		A		30,000(1)	A	$0	74,750	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 grant of restricted stock units ("RSUs") that will vest one third on the first and second anniversary of May 15, 2026 and one third on September 30, 2028, subject to the Reporting Person's continued service through the vesting date. Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.

	/s/ Huiwen Yao	05/26/2026
	** 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)