Iridium (IRDM) COO has 3,067 shares withheld for taxes

Rhea-AI Filing Summary

Iridium Communications Inc. chief operations officer Suzanne E. McBride reported a routine tax-related share disposition. On the reported date, the issuer withheld 3,067 shares of common stock at $24.01 per share to satisfy her tax withholding obligations from vesting restricted stock units. Following this non-market transaction, she directly holds 371,093 common shares.

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)
03/09/2026

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	03/09/2026		F(1)		3,067	D	$24.01	371,093	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/ Peter L. Trentman, Attorney-in-Fact	03/11/2026
	** 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.
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FAQ

What did Iridium (IRDM) COO Suzanne McBride report in this Form 4?

Suzanne McBride reported a tax-related share disposition. Iridium withheld 3,067 common shares at $24.01 to cover her tax obligations from vesting restricted stock units. After this non-market event, she directly holds 371,093 common shares in Iridium.

Was the Iridium (IRDM) Form 4 transaction an open-market sale?

No, the Form 4 describes tax-withholding, not an open-market sale. Iridium retained 3,067 shares to satisfy Suzanne McBride’s tax liability tied to vesting restricted stock units, meaning no discretionary sale decision was made in the open market.

How many Iridium (IRDM) shares were involved in the COO’s tax withholding?

The transaction involved 3,067 shares of Iridium common stock, valued at $24.01 per share for tax purposes. These shares were withheld by the company to meet Suzanne McBride’s tax obligations associated with the settlement of restricted stock units.

How many Iridium (IRDM) shares does Suzanne McBride hold after the Form 4 event?

After the reported tax-withholding transaction, Suzanne McBride directly holds 371,093 shares of Iridium common stock. This figure reflects her remaining direct ownership following the withholding of 3,067 shares to satisfy tax obligations from vested restricted stock units.

What does the F transaction code mean in the Iridium (IRDM) Form 4?

The F code indicates a tax-withholding disposition. Iridium withheld 3,067 common shares from Suzanne McBride at $24.01 per share to pay taxes owed on the vesting and settlement of restricted stock units, rather than executing an open-market sale.