Iridium (IRDM) CLO receives major stock grants as shares withheld for taxes

Rhea-AI Filing Summary

Iridium Communications’ chief legal officer, Kathleen A. Morgan, reported a mix of equity awards and a tax-related share disposition. She acquired 70,981 shares of common stock on March 1, 2026 through grants and awards at no cash cost, bringing her direct holdings to 173,617 shares immediately after that grant.

On the same date, 11,311 shares were disposed of at $22.49 per share, representing shares withheld by Iridium to cover her tax obligations rather than an open-market sale. Earlier, on February 26, 2026, she received additional stock awards totaling 25,407 shares, also at no cash cost.

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^*

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)
02/26/2026

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	02/26/2026		A		4,859(1)	A	$0	82,088	D
Common Stock	02/26/2026		A		20,548(2)	A	$0	102,636	D
Common Stock	03/01/2026		A		70,981(3)	A	$0	173,617	D
Common Stock	03/01/2026		F(4)		11,311	D	$22.49	162,306	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. Reflects the number of restricted stock units ("RSUs") certified as earned with respect to an award under the issuer's 2025 bonus plan granted on March 1, 2025. Each RSU represents a contingent right to receive one share of common stock of the issuer. The shares will vest on March 9, 2026, subject to the reporting person's continuous service with the issuer as of the vesting date.

2. Reflects the number of shares certified as earned with respect to an award of performance-based RSUs ("PSUs") granted on March 1, 2024. One half of the PSUs settled on March 1, 2026 and the remaining PSUs will vest and be settled on March 1, 2027.

3. These shares are represented by RSUs. Each RSU represents a contingent right to receive one share of common stock of the issuer. Of the shares underlying this RSU award, 20% shall vest on March 1, 2027 and the remainder shall vest in equal quarterly installments thereafter on each June 1, September 1, December 1 and March 1, so that all shares of common stock shall be vested as of March 1, 2031, subject to the reporting person's continuous service with the issuer as of each such vesting date.

4. The transaction reported represents the withholding of shares by the issuer to satisfy the reporting person's tax withholding obligations.

	/s/ Peter L. Trentman, Attorney-in-Fact	03/02/2026
	** 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.

FAQ

What did Iridium Communications (IRDM) disclose about Kathleen A. Morgan’s recent stock awards?

Iridium disclosed that chief legal officer Kathleen A. Morgan received multiple common stock awards, including 70,981 shares on March 1, 2026, and 25,407 shares on February 26, 2026, all granted at no cash cost as equity compensation.

Were any Iridium Communications (IRDM) shares sold by Kathleen A. Morgan in this Form 4?

The filing shows 11,311 shares were disposed of at $22.49 per share, but this was issuer share withholding to cover Morgan’s tax obligations on vested awards, not an open-market sale initiated for investment purposes.

How many Iridium Communications (IRDM) shares does Kathleen A. Morgan own after these transactions?

After the March 1, 2026 grant and related tax withholding, Morgan directly held 162,306 shares of Iridium common stock, reflecting her equity compensation and the shares withheld to satisfy tax liabilities on those awards.

What are the key vesting terms for Kathleen A. Morgan’s Iridium (IRDM) RSU awards?

One RSU award vests fully on March 9, 2026, if she remains employed. Another RSU grant vests 20% on March 1, 2027, with the rest vesting quarterly until March 1, 2031, subject to continued service.

How are performance-based RSUs (PSUs) for Iridium’s Kathleen A. Morgan structured?

The filing notes PSUs granted on March 1, 2024. Half settled on March 1, 2026, with the remaining performance-based RSUs scheduled to vest and settle on March 1, 2027, based on previously determined performance certification.

Why did Iridium Communications (IRDM) withhold shares from Kathleen A. Morgan’s award?

Iridium withheld 11,311 shares from Morgan’s vested stock awards to satisfy her tax withholding obligations. This tax-withholding disposition is a common administrative mechanism and does not represent an open-market share sale.