Iridium director Niehaus acquires 55.7 stock rights

The dividend equivalent rights carry the same vesting and settlement terms as the underlying restricted stock units.

Rhea-AI Filing Summary

Iridium Communications Inc. director Robert H. Niehaus acquired 55.7 dividend equivalent rights on September 30, 2026, tied to restricted stock units. Each right entitles him to receive one common share upon settlement of the related original RSUs and follows the same vesting and settlement terms. His reported direct position after the transaction was 43,315 shares. The rights accrued from a quarterly cash dividend of $0.15 per share, declared August 10, 2026, payable September 30 to stockholders of record September 15.

Insider Trade Summary

Grant/Award: 55.7 shares

Grant/Award 1 txn

Insider NIEHAUS ROBERT H

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock( F1	55.7	$0.00	$0.00

Holdings After Transaction: Common Stock( — 43,315.3 shares (Direct)

Footnotes (1)

1. F1. On August 10, 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 September 30, 2026 to stockholders of record of the common stock at the close of business on September 15, 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

Key Figures

Dividend equivalent rights acquired: 55.7 rights Quarterly cash dividend: $0.15 per share Reported direct shares following transaction: 43,315 shares

3 metrics

Dividend equivalent rights acquired 55.7 rights September 30, 2026

Quarterly cash dividend $0.15 per share Declared August 10, 2026

Reported direct shares following transaction 43,315 shares After the September 30, 2026 transaction

Key Terms

dividend equivalent rights, Original RSUs, Rule 16b-3

3 terms

dividend equivalent rights financial

"Each dividend equivalent right entitles the reporting person to receive one share"

Dividend equivalent rights are promises that mirror the cash payments shareholders get from a company’s profits, but they are paid to holders of certain awards (like stock options or restricted stock units) rather than to actual shares. Think of them as a paycheck top‑up that matches dividends while the award is not yet a real stock, and they matter to investors because they add to employee compensation costs and potential share dilution, affecting company profitability and per‑share value.

Original RSUs financial

"restricted stock units with respect to the Issuer's common stock"

Rule 16b-3 regulatory

"approved by the Issuer's board of directors pursuant to Rule 16b-3"

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.

FAQ

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

What did IRDM director Robert H. Niehaus acquire?

Robert H. Niehaus acquired 55.7 dividend equivalent rights on September 30, 2026, tied to his original restricted stock units. Each right entitles him to receive one common share upon settlement of those units and follows the same vesting and settlement terms.

What dividend was associated with Niehaus's IRDM award?

The rights accrued from a quarterly cash dividend of $0.15 per share, declared August 10, 2026. The dividend was payable September 30, 2026, to stockholders of record at the close of business on September 15, 2026.

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

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Available on EDGAR 10/02/2026 - 04:57 PM Accepted by SEC EDGAR 10/02/2026 - 04:56 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^*

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)
09/30/2026

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((1)	09/30/2026		A		55.7	A	$0	43,315.3	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. On August 10, 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 September 30, 2026 to stockholders of record of the common stock at the close of business on September 15, 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	10/02/2026
	** 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)