Iridium Communications (IRDM) CAO sells 13,473 shares at $50.51

Rhea-AI Filing Summary

Iridium Communications Inc. (IRDM) officer Timothy Kapalka, CAO of Iridium Satellite LLC, reported a sale of 13,473 shares of common stock on 2026-08-17 in an open market or private transaction. The weighted average price was $50.51 per share, with individual trade prices ranging from $50.02 to $50.89. After this transaction, Kapalka directly holds 35,731 shares of Iridium common stock.

Insider Trade Summary

Net Seller: 13,473 shares

Net Sell 1 txn

Insider Kapalka Timothy

Role CAO Iridium Satellite LLC

Sold 13,473 shs ($681K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	13,473	$50.51	$681K

Holdings After Transaction: Common Stock — 35,731 shares (Direct)

Footnotes (1)

1. F1. This price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.02 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

Shares sold: 13,473 shares Weighted average sale price: $50.51 per share Sale price range: $50.02–$50.89 per share +2 more

5 metrics

Shares sold 13,473 shares Common stock sale reported for 2026-08-17

Weighted average sale price $50.51 per share Weighted average price for the 13,473-share sale

Sale price range $50.02–$50.89 per share Range of individual transaction prices for the reported sale

Shares held after transaction 35,731 shares Direct ownership of Iridium common stock following the sale

Net buy/sell shares -13,473 shares Net effect of reported Form 4 transactions, all from sales

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 officer Timothy Kapalka report on August 17, 2026?

Timothy Kapalka reported selling 13,473 IRDM shares on 2026-08-17 in an open market or private transaction at a weighted average price of $50.51, with trade prices between $50.02 and $50.89 per share.

What price did Timothy Kapalka receive for the IRDM shares he sold?

The reported weighted average price for the sale was $50.51 per IRDM share, based on multiple trades executed in a price range from $50.02 to $50.89 per share on August 17, 2026.

How many Iridium Communications Inc. (IRDM) shares does Timothy Kapalka hold after the reported sale?

After the transaction, Timothy Kapalka directly holds 35,731 IRDM common shares. This post-transaction balance reflects his remaining direct ownership following the sale of 13,473 shares reported for August 17, 2026.

Was the August 17, 2026 IRDM insider trade by Timothy Kapalka under a Rule 10b5-1 plan?

The filing’s Rule 10b5-1 checkbox is not marked as affirmative, and there is no footnote stating that the 13,473-share sale was executed pursuant to a trading plan, so plan status is not indicated as such.

What type of transaction did IRDM report for Timothy Kapalka on Form 4?

The Form 4 lists a Code S transaction, described as a sale in open market or private transaction, involving 13,473 shares of Iridium Communications Inc. common stock on 2026-08-17.

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 - 06:26 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^*

Kapalka Timothy

(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)
	CAO Iridium Satellite LLC

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		13,473	D	$50.51(1)	35,731	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 $50.02 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)