Iridium (IRDM) CFO has 2,514 shares withheld to cover RSU taxes

Rhea-AI Filing Summary

Iridium Communications Inc. Chief Financial Officer Vincent James O'Neill reported a disposition of 2,514 shares of common stock at $24.01 per share. The filing explains this was a share withholding by the company to cover his tax obligations from the vesting of restricted stock units, rather than an open-market sale. After this tax-withholding transaction, he directly holds 129,864 shares of Iridium common stock.

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	2,514	$24.01	$60K

Holdings After Transaction: Common Stock — 129,864 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)
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)		2,514	D	$24.01	129,864	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).
** 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 insider transaction did IRDM CFO Vincent James O'Neill report?

Iridium Communications CFO Vincent James O'Neill reported a disposition of 2,514 common shares at $24.01 each. The shares were withheld by the company to satisfy his tax obligations related to the vesting and settlement of restricted stock units, not sold in the open market.

Was the IRDM CFO’s Form 4 transaction an open-market sale of shares?

No, the transaction was not an open-market sale. The company withheld 2,514 shares of common stock to cover Vincent James O'Neill’s tax withholding obligations tied to vesting restricted stock units, as described in the filing’s footnote and transaction code explanation.

How many Iridium Communications shares does the CFO hold after this Form 4?

After the reported tax-withholding disposition, Vincent James O'Neill directly holds 129,864 shares of Iridium Communications common stock. This balance reflects his position following the withholding of 2,514 shares by the issuer to satisfy tax obligations on restricted stock unit vesting.

What does the F transaction code mean in the IRDM CFO Form 4?

The F code indicates a tax-withholding disposition, where shares are delivered to the issuer to satisfy tax or exercise costs. In this case, 2,514 Iridium Communications shares were withheld by the company to meet Vincent James O'Neill’s tax obligations from restricted stock unit vesting.

On what date did the IRDM CFO’s reported tax-withholding transaction occur?

The tax-withholding disposition occurred on March 9, 2026. On that date, Iridium Communications withheld 2,514 shares of common stock at $24.01 per share to satisfy Chief Financial Officer Vincent James O'Neill’s tax obligations related to restricted stock unit vesting and settlement.