Iridium Communications (IRDM) insider sale leaves 282,017 shares held

Rhea-AI Filing Summary

Iridium Communications Inc. (IRDM) reported that Chief Operations Officer and director Suzanne E. McBride sold common stock in an open-market transaction. She sold 85,454 shares on 2026-08-17 at a weighted average price of $50.28 per share, with individual sale prices ranging from $50.00 to $50.90. Following this sale, she directly holds 282,017 shares of Iridium common stock.

Insider Trade Summary

Net Seller: 85,454 shares

Net Sell 1 txn

Insider McBride Suzanne E.

Role Chief Operations Officer

Sold 85,454 shs ($4.30M)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	85,454	$50.28	$4.30M

Holdings After Transaction: Common Stock — 282,017 shares (Direct)

Footnotes (1)

1. F1. This price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.00 to $50.90, 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: 85,454 shares Weighted average sale price: $50.28 per share Sale price range: $50.00 to $50.90 per share +1 more

4 metrics

Shares sold 85,454 shares Common stock sale reported by Suzanne E. McBride on 2026-08-17

Weighted average sale price $50.28 per share Weighted average price for the 85,454 shares sold

Sale price range $50.00 to $50.90 per share Range of individual transaction prices within the reported sale

Shares held after transaction 282,017 shares Direct ownership of Iridium common stock by Suzanne E. McBride after the sale

Key Terms

weighted average price, open market or private transaction, transaction code

3 terms

weighted average price financial

"This price is a weighted average price."

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

"Sale in open market or private transaction"

transaction code regulatory

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

FAQ

What insider transaction did IRDM report for Suzanne E. McBride on this Form 4?

Suzanne E. McBride reported a sale of 85,454 shares of Iridium Communications common stock. The sale occurred on 2026-08-17 in an open-market or private transaction as classified by transaction code S.

At what price did Suzanne E. McBride sell Iridium Communications (IRDM) shares?

The reported sale used a weighted average price of $50.28 per share. A footnote explains the shares were sold in multiple trades at prices ranging from $50.00 to $50.90 per share, inclusive.

How many Iridium Communications (IRDM) shares does Suzanne E. McBride hold after the reported sale?

After the reported transaction, Suzanne E. McBride directly holds 282,017 shares of Iridium Communications common stock. This post-transaction holding reflects her remaining direct ownership following the sale of 85,454 shares.

Was the Iridium Communications (IRDM) insider sale under a Rule 10b5-1 trading plan?

The filing’s Rule 10b5-1 checkbox is not marked as affirming a trading plan. No footnote indicates that the reported 85,454-share sale on 2026-08-17 was executed pursuant to a Rule 10b5-1 trading arrangement.

What does transaction code "S" mean in the Iridium Communications (IRDM) Form 4?

Transaction code "S" designates a sale in an open market or private transaction. In this case, it indicates that Suzanne E. McBride disposed of 85,454 Iridium Communications common shares rather than acquiring additional shares.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/19/2026 - 06:26 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^*

McBride Suzanne E.

(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
X	Officer (give title below)		Other (specify below)
	Chief Operations Officer

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		85,454	D	$50.28(1)	282,017	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 $50.00 to $50.90, 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)