Iridium (NASDAQ: IRDM) CLO reports 2,052-share tax withholding transaction

Rhea-AI Filing Summary

Iridium Communications Inc. Chief Legal Officer Kathleen A. Morgan reported a routine tax-withholding transaction involving company stock. The issuer withheld 2,052 shares of common stock at $51.78 per share to cover her tax obligations upon the vesting and settlement of restricted stock units. After this non-market transaction, she directly holds 158,063 shares of Iridium common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Morgan Kathleen A.

Role Chief Legal Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	2,052	$51.78	$106K

Holdings After Transaction: Common Stock — 158,063 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Shares withheld for taxes: 2,052 shares Per-share valuation: $51.78 per share Shares held after transaction: 158,063 shares

3 metrics

Shares withheld for taxes 2,052 shares Tax withholding on RSU vesting

Per-share valuation $51.78 per share Value applied to withheld shares

Shares held after transaction 158,063 shares Direct holdings after tax withholding

Key Terms

restricted stock units, tax withholding obligations, withholding of shares

3 terms

restricted stock units financial

"in connection with the non-reportable vesting and settlement of restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax withholding obligations financial

"withholding of shares by the issuer to satisfy the reporting person's tax withholding obligations"

withholding of shares financial

"represents the withholding of shares by the issuer to satisfy the reporting person's tax withholding obligations"

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Form 4 Insider Transactions: What Each Field Means →

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.

1676 INTERNATIONAL DRIVE, SUITE 1100

(Street)

MCLEAN VIRGINIA 22102

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/01/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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

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	06/01/2026		F(1)		2,052	D	$51.78	158,063	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	06/02/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What did Iridium (IRDM) executive Kathleen A. Morgan report on this Form 4?

Kathleen A. Morgan reported a tax-withholding disposition of Iridium shares. The company withheld 2,052 common shares to cover her tax obligations from vesting restricted stock units, a routine non-market event that did not involve an open-market purchase or sale of stock.

How many Iridium (IRDM) shares were withheld for taxes in this transaction?

Iridium withheld 2,052 common shares from Kathleen A. Morgan. These shares were used to satisfy tax withholding obligations tied to the vesting and settlement of restricted stock units, rather than being sold on the open market to outside investors.

At what price were the Iridium (IRDM) shares valued for the tax withholding?

The withheld shares were valued at $51.78 per Iridium common share. This valuation applied to the 2,052 shares used to satisfy Kathleen A. Morgan’s tax obligations related to the vesting and settlement of restricted stock units granted by the company.

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

After the tax-withholding transaction, Kathleen A. Morgan directly holds 158,063 Iridium common shares. This figure reflects her position following the withholding of 2,052 shares used to cover tax obligations from the vesting of restricted stock units.

Was this Iridium (IRDM) Form 4 transaction an open-market sale of shares?

No, the Form 4 does not show an open-market sale. The 2,052 Iridium shares were withheld by the issuer to pay tax obligations arising from restricted stock unit vesting, a non-market transaction different from a discretionary sale to outside buyers.