Iridium CLO has 2,053 shares withheld for taxes

Iridium’s Chief Legal Officer had shares withheld for taxes on RSU vesting and continues to hold over 120,000 IRDM shares.

Rhea-AI Filing Summary

Iridium Communications Inc. (IRDM) reported that Chief Legal Officer Kathleen A. Morgan had 2,053 shares of common stock withheld on September 1, 2026, to satisfy tax withholding obligations related to the vesting and settlement of restricted stock units. This was not an open-market sale, and she continues to hold 122,818 shares directly after the transaction.

Insider Trade Summary

Tax Withholding: 2,053 shares

Tax Withholding 1 txn

Insider Morgan Kathleen A.

Role Chief Legal Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1	2,053	$46.98	$96K

Holdings After Transaction: Common Stock — 122,818 shares (Direct)

Footnotes (1)

1. F1. 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.

Key Figures

Shares withheld: 2,053 shares Per-share value for withholding: $46.98 per share Shares held after transaction: 122,818 shares

3 metrics

Shares withheld 2,053 shares Shares withheld to satisfy tax withholding obligations on RSU vesting on September 1, 2026

Per-share value for withholding $46.98 per share Valuation used for the 2,053 withheld shares in the tax-withholding disposition

Shares held after transaction 122,818 shares Direct holdings of Kathleen A. Morgan after the tax-withholding transaction

Key Terms

withholding of shares, tax withholding obligations, restricted stock units

3 terms

withholding of shares financial

"represents the withholding of shares by the issuer to satisfy"

tax withholding obligations financial

"to satisfy the reporting person's tax withholding obligations in connection"

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.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

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

Iridium Communications Inc. reported that Chief Legal Officer Kathleen A. Morgan had 2,053 shares of common stock withheld on September 1, 2026, to cover tax withholding obligations from the vesting and settlement of restricted stock units.

Was the IRDM insider transaction an open-market sale?

No. The filing states the transaction represents the withholding of shares by the issuer to satisfy tax withholding obligations in connection with RSU vesting, not an open-market purchase or sale.

How many IRDM shares does Kathleen A. Morgan hold after this transaction?

Following the tax-withholding transaction, Chief Legal Officer Kathleen A. Morgan directly holds 122,818 shares of Iridium Communications Inc. common stock.

At what price were the withheld IRDM shares valued in the Form 4?

The 2,053 withheld shares were valued at $46.98 per share in the Form 4, reflecting the price used for the tax-withholding disposition.

Was the IRDM insider transaction under a Rule 10b5-1 trading plan?

No. The document-level checkbox for Rule 10b5-1 is marked false, and no footnote indicates that the tax-withholding transaction was executed pursuant to a Rule 10b5-1 trading plan.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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Available on EDGAR 09/02/2026 - 05:12 PM EDT Accepted by SEC EDGAR 09/02/2026 - 05:11 PM EDT Learn about SEC filing dates

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)
09/01/2026

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	09/01/2026		F(1)		2,053	D	$46.98	122,818	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	09/02/2026
	** 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)