What is Robert H. Niehaus’s Iridium (IRDM) share ownership after this Form 4?

After the reported grant, Robert H. Niehaus directly owns 316,532.5 shares of Iridium common stock. This total includes his existing holdings plus the 742.9 dividend-equivalent shares credited in connection with the company’s declared quarterly dividend.

Dividend credits add 742.9 shares to Iridium (NASDAQ: IRDM) director

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

NIEHAUS ROBERT H reported acquisition or exercise transactions in this Form 4 filing.

Iridium Communications Inc. director Robert H. Niehaus received an award of 742.9 shares of common stock as dividend-equivalent rights tied to his existing restricted stock units. These arose from a quarterly cash dividend of $0.15 per share declared on March 5, 2026, payable March 31, 2026 to holders of record on March 16, 2026. After this award, he directly holds 316,532.5 shares of Iridium common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider NIEHAUS ROBERT H

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	742.9	$0.00	--

Holdings After Transaction: Common Stock — 316,532.5 shares (Direct)

Footnotes (1)

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Key Figures

Dividend-equivalent shares granted: 742.9 shares Shares held after transaction: 316,532.5 shares Quarterly cash dividend: $0.15 per share +2 more

5 metrics

Dividend-equivalent shares granted 742.9 shares Award on restricted stock units from cash dividend

Shares held after transaction 316,532.5 shares Total direct common stock ownership post-award

Quarterly cash dividend $0.15 per share Declared on common stock, March 5, 2026

Dividend record date March 16, 2026 Stockholders of record eligible for $0.15 dividend

Dividend payment date March 31, 2026 Scheduled cash dividend payment on common stock

Key Terms

restricted stock units, dividend equivalent right, quarterly cash dividend, Rule 16b-3, +1 more

5 terms

restricted stock units financial

"The amount acquired in column 4 represents equivalent rights accrued as a result of the Dividend on restricted stock units with respect to the Issuer's common stock"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

dividend equivalent right financial

"Each dividend equivalent right entitles the reporting person to receive one share of the Issuer's common stock upon the settlement of the Original RSUs"

quarterly cash dividend financial

"the Issuer's board of directors declared a quarterly cash dividend in the amount of $0.15 per share of its common stock"

A quarterly cash dividend is a payment made by a company to its shareholders four times a year, usually based on its profits. It is like a regular bonus or reward for owning the company's stock, providing shareholders with income. Many investors see these payments as a sign of the company's stability and its ability to generate consistent profits.

Rule 16b-3 regulatory

"The grant of dividend equivalent rights was approved by the Issuer's board of directors pursuant to Rule 16b-3 of the Securities Exchange Act of 1934"

Rule 16b-3 is a Securities and Exchange Commission regulation that exempts certain routine, pre-approved transactions by company insiders from automatic liability for short-term trading profits. It acts like a safe harbor: if an insider follows a formal plan or the board approves specific transactions in advance, profits from buying and selling company stock within six months are not automatically reclaimed. Investors care because the rule clarifies when insider trades are permissible and reduces uncertainty about potential clawbacks.

stockholders of record financial

"payable on March 31, 2026 to stockholders of record of the common stock at the close of business on March 16, 2026"

Stockholders of record are the people or entities whose names appear on a company's official shareholder list on a specific cutoff date set by the company or its transfer agent; only those listed are entitled to receive dividends, vote at shareholder meetings, or participate in other corporate actions. Think of it like a guest list for an event: being on the list on the set day determines who gets the benefits and rights, so investors must own shares before the cutoff to qualify.

Form 4 Insider Transactions: What Each Field Means →

04/02/2026 - 05:11 PM

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^*

NIEHAUS ROBERT H

(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)
03/31/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock⁽¹⁾	03/31/2026		A		742.9	A	$0	316,532.5	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. On March 5, 2026, the Issuer's board of directors declared a quarterly cash dividend in the amount of $0.15 per share of its common stock, payable on March 31, 2026 to stockholders of record of the common stock at the close of business on March 16, 2026 (the "Dividend"). The amount acquired in column 4 represents equivalent rights accrued as a result of the Dividend on restricted stock units with respect to the Issuer's common stock ("Original RSUs") held by the reporting person. Each dividend equivalent right entitles the reporting person to receive one share of the Issuer's common stock upon the settlement of the Original RSUs and is subject to the same terms and conditions, including vesting and settlement, as the Original RSUs to which it relates. The grant of dividend equivalent rights was approved by the Issuer's board of directors pursuant to Rule 16b-3 of the Securities Exchange Act of 1934, as amended.

	/s/ Peter L. Trentman, Attorney-in-Fact	04/02/2026
	** 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.
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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Iridium (IRDM) director Robert H. Niehaus report?

Robert H. Niehaus reported acquiring 742.9 shares of Iridium common stock as a grant. These represent dividend-equivalent rights credited on his restricted stock units following a declared cash dividend of $0.15 per share on the company’s common stock.

Why did Robert H. Niehaus receive 742.9 Iridium (IRDM) shares?

He received 742.9 shares as dividend-equivalent rights on his existing restricted stock units. The rights were credited because Iridium’s board declared a $0.15 per share quarterly cash dividend on common stock, with the equivalents matching that dividend on his RSU holdings.

How do the dividend-equivalent rights for Iridium (IRDM) work in this filing?

Each dividend-equivalent right entitles Robert H. Niehaus to receive one share of Iridium common stock. These rights vest and settle on the same terms and schedule as the original restricted stock units to which they relate, rather than being immediately payable in cash.

What dividend did Iridium (IRDM) declare that triggered these RSU credits?

Iridium’s board declared a quarterly cash dividend of $0.15 per share on its common stock. The dividend is payable March 31, 2026 to stockholders of record at the close of business on March 16, 2026, generating corresponding dividend-equivalent rights on outstanding RSUs.

Were the dividend-equivalent rights for Iridium (IRDM) approved under a specific rule?

Yes. The grant of dividend-equivalent rights on Robert H. Niehaus’s restricted stock units was approved by Iridium’s board of directors pursuant to Rule 16b-3 under the Securities Exchange Act of 1934, which governs certain insider transactions and compensation-related awards.