Iridium (IRDM) CLO has shares withheld to cover RSU taxes

Rhea-AI Filing Summary

Iridium Communications Inc. Chief Legal Officer Kathleen A. Morgan reported a routine share disposition related to taxes. On the vesting of restricted stock units, the company withheld 2,191 shares of Common Stock at $24.01 per share to cover her tax obligations. After this non-market, tax-withholding transaction, she directly holds 160,115 shares of Iridium common stock.

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^*

Morgan Kathleen A.

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Legal 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)		2,191	D	$24.01	160,115	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).
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FAQ

What insider transaction did Iridium (IRDM) report for Kathleen A. Morgan?

Iridium reported that Chief Legal Officer Kathleen A. Morgan had 2,191 shares of common stock withheld at $24.01 per share. These shares were withheld to satisfy tax obligations from the vesting of restricted stock units, rather than sold in the open market.

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

No, the Form 4 shows a tax-withholding disposition, not an open-market sale. Iridium withheld 2,191 shares of common stock to cover Kathleen A. Morgan’s tax liability when her restricted stock units vested and settled.

How many Iridium (IRDM) shares does Kathleen A. Morgan hold after this Form 4?

Following the tax-withholding transaction, Kathleen A. Morgan directly holds 160,115 shares of Iridium common stock. The filing shows this updated ownership figure after accounting for the 2,191 shares withheld to satisfy her tax obligations on RSU vesting.

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

Transaction code F indicates a disposition of shares to pay an exercise price or tax liability. In this Iridium filing, 2,191 shares were withheld to satisfy Kathleen A. Morgan’s tax withholding obligations tied to restricted stock unit vesting.

Does the Iridium (IRDM) Form 4 indicate derivative or option exercises?

The summary data shows no derivative exercises in this Form 4. The only reported event is a tax-withholding disposition of 2,191 shares of common stock related to the vesting and settlement of restricted stock units, which themselves were non-reportable.