Iridium (IRDM) CFO RSU Tax Withholding: 804 Shares Withheld

Rhea-AI Filing Summary

Iridium Communications (IRDM) reporting person Vincent J. O'Neill, Chief Financial Officer, recorded a non-derivative disposition on 09/01/2025. The form shows 804 shares were withheld by the issuer at a price of $24.89 to satisfy the reporting person's tax withholding obligations related to the vesting and settlement of restricted stock units. After the withholding, the reporting person beneficially owns 49,571 shares directly. The filing was signed by an attorney-in-fact on 09/02/2025. The disclosure is a routine tax-withholding share withholding following RSU settlement.

Insights

Financial Analyst

TL;DR: Routine tax-withholding sale of shares by the CFO; small absolute change in ownership and no new issuance or exercise.

The reporting shows an 804-share disposition through issuer withholding at $24.89 per share to cover tax obligations from RSU vesting. This is an administrative transaction rather than a cash sale to the market, so it does not represent active disposition pressure. The post-transaction direct holding of 49,571 shares remains disclosed, allowing investors to track insider ownership trends.

Corporate Governance Expert

TL;DR: Compliance-focused filing demonstrating routine insider reporting and withholding to satisfy tax liabilities after RSU settlement.

The Form 4 appropriately discloses the nature of the withholding and the effect on beneficial ownership. The filing indicates adherence to reporting requirements and documents the use of issuer withholding rather than open-market sales. No governance red flags or related-party transactions are disclosed in this submission.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider O'Neill Vincent James

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	804	$24.89	$20K

Holdings After Transaction: Common Stock — 49,571 shares (Direct)

Footnotes (1)

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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^*

O'Neill Vincent James

(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 Financial Officer

3. Date of Earliest Transaction (Month/Day/Year)
09/01/2025

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	09/01/2025		F(1)		804	D	$24.89	49,571	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/ Patrick McClain, Attorney-in-Fact	09/02/2025
	** 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 the IRDM Form 4 filed for Vincent J. O'Neill disclose?

The Form 4 discloses that 804 shares were withheld on 09/01/2025 at $24.89 per share to satisfy tax withholding from RSU vesting, leaving 49,571 shares beneficially owned directly.

Was the transaction an open-market sale reported on the IRDM Form 4?

No. The filing shows an issuer withholding transaction to satisfy tax obligations related to restricted stock units, not an open-market sale.

What is the reporting person’s role at Iridium Communications (IRDM)?

The reporting person, Vincent J. O'Neill, is disclosed as the Chief Financial Officer and an officer of the issuer.

When was the Form 4 signed and by whom?

The filing was signed by an attorney-in-fact, Patrick McClain, on 09/02/2025.

How many shares does the reporting person own after the transaction?

After the withholding transaction, the reporting person beneficially owns 49,571 shares directly.