Iridium EVP sells 19,521 shares around $50

Iridium Communications Inc. (IRDM) reported that Timothy James Last, EVP, Sales & Marketing, sold a total of 19,521 shares of common stock on 2026-08-17 in open-market or private transactions.

Rhea-AI Filing Summary

Iridium Communications Inc. (IRDM) reported that Timothy James Last, EVP, Sales & Marketing, sold a total of 19,521 shares of common stock on 2026-08-17 in open-market or private transactions. Sales were executed as two weighted-average price blocks, each spanning a disclosed price range.

Insider Trade Summary

Net Seller: 19,521 shares

Net Sell 2 txns

Insider Last Timothy James

Role EVP, Sales & Marketing

Sold 19,521 shs ($983K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	19,021	$50.33	$957K
Sale	Common Stock F2	500	$50.88	$25K

Holdings After Transaction: Common Stock — 93,413 shares (Direct)

Footnotes (2)

1. F1. This price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $49.84 to $50.84, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote to this Form 4.
2. F2. This price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.87 to $50.89, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote to this Form 4.

Key Figures

Total shares sold: 19,521 shares First block shares sold: 19,021 shares First block weighted average price: $50.33 per share +3 more

6 metrics

Total shares sold 19,521 shares Net shares sold by Timothy James Last on 2026-08-17 across two transactions

First block shares sold 19,021 shares Common Stock sold on 2026-08-17 at weighted average price in range $49.84–$50.84

First block weighted average price $50.33 per share Weighted average sale price for 19,021 Common Stock shares (range $49.84–$50.84)

Second block shares sold 500 shares Common Stock sold on 2026-08-17 at weighted average price in range $50.87–$50.89

Second block weighted average price $50.88 per share Weighted average sale price for 500 Common Stock shares (range $50.87–$50.89)

Sell transactions count 2 transactions Two non-derivative sale transactions (code "S") reported on this Form 4

Key Terms

weighted average price, open market or private transaction, non-derivative

3 terms

weighted average price financial

"This price is a weighted average price. These shares were sold in multiple transactions"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

open market or private transaction financial

"transaction_code_description": "Sale in open market or private transaction""

non-derivative financial

"transaction_type": "non-derivative""

FAQ

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

What insider transactions did IRDM report for Timothy James Last on this Form 4?

Timothy James Last reported selling 19,521 IRDM common shares on 2026-08-17. The sales occurred in two blocks at weighted-average prices, executed as open-market or private transactions according to the Form 4 details and accompanying footnotes.

How many Iridium Communications (IRDM) shares did Timothy James Last sell in each transaction?

He sold 19,021 shares in one transaction and 500 shares in another, both on 2026-08-17. Each transaction involved IRDM common stock and was reported as a sale in open market or private transaction under transaction code "S".

What prices were received for the IRDM shares sold by Timothy James Last?

The first sale had a weighted average price of $50.33, with individual trades from $49.84 to $50.84. The second sale had a weighted average price of $50.88, with trades ranging from $50.87 to $50.89, as disclosed in the footnotes.

Were Timothy James Last’s IRDM share sales executed under a Rule 10b5-1 plan?

The Form 4 indicates the Rule 10b5-1 checkbox as not checked (aff_10b5_one: false). The footnotes describe pricing as weighted averages over ranges but do not state that the transactions were made under any trading plan arrangement.

What is the total net share impact of Timothy James Last’s IRDM transactions in this Form 4?

The transactions represent a net sale of 19,521 shares of Iridium Communications common stock. All reported activity consists of sell transactions, with no purchases, exercises, gifts, or derivative transactions disclosed in this particular Form 4 filing.

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

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Available on EDGAR 08/19/2026 - 06:26 PM Accepted by SEC EDGAR 08/19/2026 - 06:26 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.

1676 INTERNATIONAL DRIVE, SUITE 1100

(Street)

MCLEAN VIRGINIA 22102

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/17/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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	08/17/2026		S		19,021	D	$50.33(1)	93,913	D
Common Stock	08/17/2026		S		500	D	$50.88(2)	93,413	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. This price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $49.84 to $50.84, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote to this Form 4.

2. This price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.87 to $50.89, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote to this Form 4.

	/s/ Peter L. Trentman, Attorney-in-Fact	08/19/2026
	** 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.
* Form 4: SEC 1474 (03-26)