Iridium EVP receives stock awards, covers taxes

Iridium Communications Inc. executive Timothy James Last, EVP of Sales & Marketing, reported equity compensation and related tax withholding transactions in company common stock.

Rhea-AI Filing Summary

Iridium Communications Inc. executive Timothy James Last, EVP of Sales & Marketing, reported equity compensation and related tax withholding transactions in company common stock. He received grants or awards totaling 66,805 shares on March 1, 2026 and 4,634 shares on February 26, 2026 at no per-share cost, reflecting restricted stock units under company plans with multi-year vesting schedules extending to March 1, 2031. The company withheld 3,883 shares at a price of $22.49 per share to satisfy his tax obligations. Following these transactions, he directly owned 116,767 shares of Iridium common stock.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider Last Timothy James

Role EVP, Sales & Marketing

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	66,805	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	3,883	$22.49	$87K
Grant/Award	Common Stock	4,634	$0.00	$0.00

Holdings After Transaction: Common Stock — 116,767 shares (Direct)

Footnotes (3)

1. F1. Reflects the number of restricted stock units ("RSUs") certified as earned with respect to an award under the issuer's 2025 bonus plan granted on March 1, 2025. Each RSU represents a contingent right to receive one share of common stock of the issuer. The shares will vest on March 9, 2026, subject to the reporting person's continuous service with the issuer as of the vesting date.
2. F2. These shares are represented by RSUs. Each RSU represents a contingent right to receive one share of common stock of the issuer. Of the shares underlying this RSU award, 20% shall vest on March 1, 2027 and the remainder shall vest in equal quarterly installments thereafter on each June 1, September 1, December 1 and March 1, so that all shares of common stock shall be vested as of March 1, 2031, subject to the reporting person's continuous service with the issuer as of each such vesting date.
3. F3. The transaction reported represents the withholding of shares by the issuer to satisfy the reporting person's tax withholding obligations.

FAQ

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

What insider transactions did Timothy James Last report for IRDM?

Timothy James Last reported equity awards and tax withholding in Iridium common stock. He received 66,805 and 4,634 shares as stock grants and had 3,883 shares withheld by the company to cover tax obligations related to these awards.

How many Iridium (IRDM) shares does Timothy Last own after this Form 4?

After the reported transactions, Timothy James Last directly owned 116,767 shares of Iridium common stock. This figure reflects both the new stock awards and the shares withheld by the company to satisfy his associated tax withholding obligations.

Were Timothy Last’s IRDM transactions open-market buys or sells?

The reported transactions were not open-market trades. They consisted of stock grants or awards at no per-share cost and a share disposition where 3,883 shares were withheld by Iridium to satisfy his tax withholding obligations at $22.49 per share.

What vesting schedule applies to Timothy Last’s new RSU awards at Iridium?

The RSU awards have multi-year vesting. One award vests on March 9, 2026, while another vests 20% on March 1, 2027, with the remaining shares vesting quarterly until all are vested by March 1, 2031, subject to continued service.

Why did Iridium withhold 3,883 shares from Timothy Last’s awards?

Iridium withheld 3,883 shares to satisfy Timothy James Last’s tax withholding obligations. Instead of paying cash, shares were retained by the issuer at $22.49 per share, a standard method for covering equity-award-related tax liabilities.

What role does Timothy James Last hold at Iridium Communications Inc. (IRDM)?

Timothy James Last serves as Executive Vice President, Sales & Marketing at Iridium Communications Inc. His Form 4 filing reflects equity compensation tied to this leadership role, including restricted stock unit awards with specified future vesting dates.

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

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Accepted by SEC EDGAR 03/02/2026 - 09:19 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^*

Last Timothy 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)
	EVP, Sales & Marketing

3. Date of Earliest Transaction (Month/Day/Year)
02/26/2026

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	02/26/2026		A		4,634(1)	A	$0	53,845	D
Common Stock	03/01/2026		A		66,805(2)	A	$0	120,650	D
Common Stock	03/01/2026		F(3)		3,883	D	$22.49	116,767	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. Reflects the number of restricted stock units ("RSUs") certified as earned with respect to an award under the issuer's 2025 bonus plan granted on March 1, 2025. Each RSU represents a contingent right to receive one share of common stock of the issuer. The shares will vest on March 9, 2026, subject to the reporting person's continuous service with the issuer as of the vesting date.

2. These shares are represented by RSUs. Each RSU represents a contingent right to receive one share of common stock of the issuer. Of the shares underlying this RSU award, 20% shall vest on March 1, 2027 and the remainder shall vest in equal quarterly installments thereafter on each June 1, September 1, December 1 and March 1, so that all shares of common stock shall be vested as of March 1, 2031, subject to the reporting person's continuous service with the issuer as of each such vesting date.

3. The transaction reported represents the withholding of shares by the issuer to satisfy the reporting person's tax withholding obligations.

	/s/ Peter L. Trentman, Attorney-in-Fact	03/02/2026
	** 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.
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