Iridium EVP uses 2,397 shares for taxes

Iridium Communications Inc. executive Scott Scheimreif reported a routine tax-related share disposition.

Rhea-AI Filing Summary

Iridium Communications Inc. executive Scott Scheimreif reported a routine tax-related share disposition. On March 9, 2026, 2,397 shares of Iridium common stock were withheld by the company at $24.01 per share to cover his tax obligations from vesting restricted stock units.

This was not an open-market sale but a payment of tax liability in shares. After this withholding, Scheimreif directly holds 261,964 Iridium shares, so the transaction affects only a small portion of his overall position.

Insider Trade Summary

Exercise Price or Tax Liability: 2,397 shares

Exercise Price or Tax Liability 1 txn

Insider Scheimreif Scott

Role EVP-Government Programs

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	2,397	$24.01	$58K

Holdings After Transaction: Common Stock — 261,964 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.

FAQ

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

What insider transaction did Iridium (IRDM) EVP Scott Scheimreif report?

Scott Scheimreif reported a tax-related share disposition. Iridium withheld 2,397 common shares to satisfy his tax obligations tied to vesting restricted stock units, rather than him selling shares in the open market.

How many Iridium (IRDM) shares were withheld for Scott Scheimreif’s taxes?

Iridium withheld 2,397 common shares for Scott Scheimreif’s tax obligations. The withholding price was $24.01 per share, reflecting payment of tax liability through shares instead of cash after restricted stock units vested.

How many Iridium (IRDM) shares does Scott Scheimreif hold after this Form 4?

After the tax withholding transaction, Scott Scheimreif holds 261,964 Iridium common shares directly. This shows that the 2,397 withheld shares represent only a small fraction of his total reported ownership position in the company.

Does Scott Scheimreif’s Form 4 for Iridium (IRDM) reflect an open-market sale?

No, the Form 4 does not show an open-market sale. The transaction is coded as tax withholding, where Iridium retained 2,397 shares to cover Scheimreif’s tax liability from vesting restricted stock units, rather than a discretionary sale.

What does a tax-withholding disposition mean for Iridium (IRDM) insiders?

A tax-withholding disposition means the company keeps some shares when awards vest to pay the insider’s taxes. For Iridium, 2,397 shares were withheld from Scott Scheimreif’s vesting restricted stock units instead of him paying the tax in cash.

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

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Accepted by SEC EDGAR 03/11/2026 - 05:10 PM 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^*

Scheimreif Scott

(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)
	EVP-Government Programs

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)		2,397	D	$24.01	261,964	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.
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