Iridium Insider Filing: 7,385 Shares Withheld for Taxes by CEO Desch

Rhea-AI Filing Summary

Matthew J. Desch, Chief Executive Officer and Director of Iridium Communications Inc. (IRDM), reported a non-derivative transaction on 09/01/2025 showing 7,385 shares were disposed at a price of $24.89 under code F(1). The filing explains these shares were withheld by the issuer to satisfy tax withholding related to the vesting and settlement of restricted stock units. After the withholding, Mr. Desch beneficially owned 1,107,019 shares (direct). The Form 4 was signed by an attorney-in-fact on 09/02/2025.

Insights

Corporate Governance Expert

Routine tax-withholding on vested RSUs; no change to leadership or control.

The reported transaction is a standard issuer withholding to cover tax obligations from RSU vesting, filed under transaction code F(1). Such withholdings are administrative and do not represent an open-market sale by the reporting person. The remaining direct ownership of 1,107,019 shares keeps the CEO as a significant insider holder. There is no indication of unusual timing or strategic disposition in this filing.

Securities Analyst

Non-material insider share withholding; unlikely to affect IRDM valuation or market sentiment.

The disposal of 7,385 shares at $24.89 reflects tax-related withholding and not a liquidity-driven sale. The transaction size is small relative to the CEO's total holdings, so it is unlikely to be material for investors or to signal a change in insider conviction. This is a routine disclosure consistent with RSU settlements.

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

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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^*

DESCH MATTHEW J

(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)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CHIEF EXECUTIVE 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)		7,385	D	$24.89	1,107,019	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 transaction did IRDM insider Matthew J. Desch report on Form 4?

The Form 4 reports the withholding and disposition of 7,385 shares on 09/01/2025 related to RSU tax withholding.

Why were the 7,385 shares disposed according to the Form 4 for IRDM?

The filing states the shares were withheld by the issuer to satisfy the reporting person's tax withholding obligations from RSU vesting and settlement.

How many IRDM shares does Matthew J. Desch beneficially own after the transaction?

After the reported transaction, Mr. Desch beneficially owned 1,107,019 shares (direct).

At what price were the withheld IRDM shares recorded on the Form 4?

The transaction is reported at a price of $24.89 per share.

Who signed the Form 4 for Matthew J. Desch and when?

The Form 4 was signed by an attorney-in-fact, Patrick McClain, on 09/02/2025.