[Form 4/A] Sidus Space Inc. Amended Insider Trading Activity

Rhea-AI Filing Summary

Leonardo Riera, a director of Sidus Space, Inc. (SIDU), reported an amended Form 4 disclosing equity awards and conversions on 08/01/2025. He was granted 9,167 restricted stock units (RSUs), of which 7,206 vested immediately and converted into 7,206 shares of Class A Common Stock on that date. Table I records the receipt of 7,206 shares at a $0 price and beneficial ownership of 7,206 shares following the transaction. Table II reports the grant of 9,167 RSUs and the vesting schedule for the remaining awards: 490 RSUs vesting on each of 10/01/2025, 01/01/2026, 04/01/2026, and 07/01/2026. The form is signed by the reporting person on 10/02/2025.

Positive

• 7,206 RSUs vested immediately and converted to 7,206 Class A shares, increasing director alignment
• Grant includes a defined vesting schedule: 490 RSUs vesting on each of 10/01/2025, 01/01/2026, 04/01/2026, and 07/01/2026

Negative

• 9,167 RSU grant potentially dilutive if all units convert to shares
• Immediate conversion of 7,206 RSUs increases outstanding Class A shares without cash consideration ($0 price)

Insights

Corporate Governance Expert

Director received equity awards with immediate vesting and a staged vesting schedule for the remainder.

The filing documents a 9,167-unit RSU grant to director Leonardo Riera with 7,206 units vesting immediately and converting to Class A Common Stock on 08/01/2025. Immediate vesting increases the director's direct shareholdings by 7,206 shares as reported in Table I.

The remaining RSUs follow a clear quarterly vesting schedule of 490 RSUs on each of 10/01/2025, 01/01/2026, 04/01/2026, and 07/01/2026, which creates future, time‑based dilution only if shares are issued upon vesting. The form is an amended filing, signed on 10/02/2025, and shows all transactions reported at a $0 per‑share conversion price.

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

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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^*

Riera Leonardo

(Last) (First) (Middle)

C/O SIDUS SPACE, INC.

150 N. SYKES CREEK PKWY, SUITE 200

(Street)

MERRITT ISLAND, FL 32953

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Sidus Space Inc. [ SIDU ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
08/01/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)
08/04/2025

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	08/01/2025		M(1)		7,206	A	$0	7,206	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
Restricted Stock Units	(2)	08/01/2025		A		9,167		(3)	(3)	Class A Common Stock	9,167	$0	9,167	D
Restricted Stock Units	(2)	08/01/2025		M			7,206	(3)	(3)	Class A Common Stock	7,206	$0	1,961	D

Explanation of Responses:

1. Represents the conversion upon vesting of restricted stock units (RSUs) into Class A Common Stock. On August 1, 2025, the reporting person was granted 9,167 RSUs, of which 7,206 vested upon the date of grant. The vested RSUs which converted on August 1, 2025 are reported in Table II on this Form 4.

2. Each restricted stock unit is the economic equivalent of one share of Sidus Space, Inc.'s Class A Common Stock.

3. On August 1, 2025, the reporting person was granted 9,167 RSUs, of which 7,206 vested upon the date of grant and 490 vest on each of October 1, 2025, January 1, 2026, April 1, 2026 and July 1, 2026. The Class A Common Stock into which such vested RSUs converted on August 1, 2025 is reported in Table I on this Form 4.

	/s/ Leonardo Riera	10/02/2025
	** 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.
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FAQ

What did Sidus Space director Leonardo Riera report on Form 4/A (SIDU)?

He reported a grant of 9,167 RSUs on 08/01/2025, with 7,206 RSUs vesting immediately and converting into 7,206 Class A shares.

How many shares did Riera beneficially own after the reported transaction?

Table I shows beneficial ownership of 7,206 Class A Common Stock shares following the conversion on 08/01/2025.

What is the vesting schedule for the remaining RSUs?

The remaining RSUs vest 490 units on each of 10/01/2025, 01/01/2026, 04/01/2026, and 07/01/2026.

At what price were the RSUs converted or granted?

All reported RSU conversions and grants are recorded at a $0 per‑share price on the Form 4/A.

When was the amended Form 4 signed by the reporting person?

The Form 4/A is signed by Leonardo Riera on 10/02/2025.