Iridium Communications (IRDM) director sells 8,000 shares

Rhea-AI Filing Summary

Iridium Communications Inc. (IRDM) director Eric T. Olson reported an open-market sale of company stock. On 2026-08-17, he sold 8,000 shares of Iridium common stock at a weighted average price of $50.61 per share, with individual trade prices ranging from $50.565 to $50.65. Following this transaction, Olson directly holds 149,680.1 shares of Iridium common stock.

Insider Trade Summary

Net Seller: 8,000 shares

Net Sell 1 txn

Insider Olson Eric T

Role Director

Sold 8,000 shs ($405K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	8,000	$50.61	$405K

Holdings After Transaction: Common Stock — 149,680.1 shares (Direct)

Footnotes (1)

1. F1. This price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.565 to $50.65, 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

Shares sold: 8,000 shares Weighted average sale price: $50.61 per share Sale price range: $50.565 to $50.65 per share +2 more

5 metrics

Shares sold 8,000 shares Common stock sold on 2026-08-17 by director Eric T. Olson

Weighted average sale price $50.61 per share Weighted average price for the 8,000 IRDM shares sold

Sale price range $50.565 to $50.65 per share Range of individual transaction prices within the reported sale

Shares owned after transaction 149,680.1 shares Direct IRDM common stock holdings following the sale

Net shares sold 8,000 shares Net-sell shares from transaction summary (no offsetting buys)

Key Terms

weighted average price, open market or private transaction, Form 4

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"

Form 4 regulatory

"within the range set forth in this footnote to this Form 4"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

FAQ

What insider transaction did IRDM director Eric T. Olson report?

Eric T. Olson reported a sale of 8,000 shares of Iridium Communications Inc. common stock. The transaction occurred on 2026-08-17 as an open-market or private sale, according to the Form 4 filing.

At what price did Eric T. Olson sell IRDM shares?

Olson sold the IRDM shares at a weighted average price of $50.61 per share. The filing notes individual trade prices ranged from $50.565 to $50.65, all executed on 2026-08-17.

How many Iridium Communications (IRDM) shares does Eric T. Olson own after the sale?

After the reported sale, Eric T. Olson directly owns 149,680.1 shares of Iridium Communications Inc. common stock. This figure reflects his post-transaction holdings as reported in the Form 4.

Was the IRDM insider sale by Eric T. Olson a buy or sell transaction?

The transaction was a sell of Iridium Communications Inc. common stock. The Form 4 uses transaction code “S”, indicating a sale in an open market or private transaction.

How many IRDM shares did Eric T. Olson sell in total on 2026-08-17?

He sold a total of 8,000 shares of Iridium Communications Inc. common stock. The filing’s transaction summary also shows net-sell shares of 8,000, confirming no offsetting purchases.

Were Eric T. Olson’s IRDM share sales under a Rule 10b5-1 trading plan?

The filing’s 10b5-1 checkbox is not marked as a plan transaction (aff_10b5_one is false). The footnote does not state that these sales were executed under a Rule 10b5-1 trading plan.

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/19/2026 - 06:25 PM Accepted by SEC EDGAR 08/19/2026 - 06:25 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^*

Olson Eric T

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

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		8,000	D	$50.61(1)	149,680.1	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 $50.565 to $50.65, 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)