[Form 4] Iridium Communications Inc. Insider Trading Activity

Rhea-AI Filing Summary

Suzanne E. McBride, who serves as Chief Operations Officer and a director of Iridium Communications Inc. (IRDM), reported a transaction on Form 4 where 2,821 shares of Common Stock were disposed on 09/01/2025 at a price of $24.89 per share. The filing states the shares were withheld by the issuer to satisfy the reporting person’s tax withholding obligations related to the vesting and settlement of restricted stock units. Following the transaction, McBride beneficially owned 222,272 shares in a direct ownership form. The form was signed by an attorney-in-fact on 09/02/2025.

Insights

Securities Compliance Analyst

TL;DR: This is a routine insider tax-withholding transaction, not a market sale, reducing beneficial shares by 2,821.

The Form 4 discloses a non-derivative disposal of 2,821 shares by Suzanne E. McBride on 09/01/2025 at $24.89 per share. The filing explicitly explains the disposal resulted from issuer withholding to satisfy tax obligations upon RSU vesting and settlement. Reporting shows direct beneficial ownership of 222,272 shares after the withholding. There is no indication of additional sales, option exercises, or derivative activity. Documentation was executed by an attorney-in-fact on 09/02/2025, consistent with standard Form 4 procedural practice.

Corporate Governance Expert

TL;DR: Routine insider reporting of tax-related share withholding; materiality to investors is limited.

The disclosure identifies the reporting person as both an officer (Chief Operations Officer) and a director, and records a tax-withholding share disposition of 2,821 common shares. The nature of the transaction is explicitly stated as withholding to satisfy tax liabilities from RSU vesting, which aligns with common executive compensation settlements. The Form 4 shows direct ownership remains at 222,272 shares. No governance or control changes are reported in this filing.

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).

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^*

McBride Suzanne E.

(Last) (First) (Middle)

C/O IRIDIUM COMMUNICATIONS INC.

1750 TYSONS BOULEVARD, SUITE 1400

(Street)

MCLEAN VA 22102

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Iridium Communications Inc. [ IRDM ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
09/01/2025

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
Common Stock	09/01/2025		F(1)		2,821	D	$24.89	222,272	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. The transaction reported represents the withholding of shares by the issuer to satisfy the reporting person's tax withholding obligations in connection with the non-reportable vesting and settlement of restricted stock units.

	/s/ Patrick McClain, Attorney-in-Fact	09/02/2025
	** 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).
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