FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response... 0.5

(Print or Type Responses)

1. Name and Address of Reporting Person * NIEHAUS ROBERT H   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) (Last) (First) (Middle) 300 PARK AVENUE, 23RD FLOOR 3. Date of Earliest Transaction (Month/Day/Year) 09/29/2009 (Street) NEW YORK, NY 10022 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) 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

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	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 control number.		SEC 1474 (9-02)

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 Underlying Securities (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 of Derivative Security: 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

Warrant

$ 7

09/29/2009

D

200,000

09/29/2009

(1)

Common Stock

200,000

(2)

0

D

Warrant

$ 11.5

09/29/2009

A

200,000

09/29/2009

(1)

Common Stock

200,000

(2)

200,000

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
NIEHAUS ROBERT H 300 PARK AVENUE, 23RD FLOOR NEW YORK, NY 10022	X

Signatures

/s/ Christi Novak, attorney-in-fact		09/30/2009
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Expires on the earlier of February 14, 2015, or the business day preceding the date on which the warrants ("Warrants") are redeemed.
(2)	The shares of common stock, par value $0.001 per share ("Common Stock"), and Warrants were purchased as part of units (each a "Unit") sold in the initial public offering of GHL Acquisition Corp., the prior name of Iridium Communications Inc. (the "Issuer"), at a price of $10.00 per Unit. Each Unit consisted of one share of Common Stock and one Warrant. Each Warrant entitled the holder to purchase one share of Common Stock for $7.00 per share. On September 29, 2009, the Warrants were exchanged in transactions under Rule 16b-3(e) and (d), respectively, for restructured warrants on substantially similar terms, with the exception of: (i) increasing their exercise price to $11.50, (ii) extending their exercise period by two years to February 2015, and (iii) increasing the price of Common Stock at which the warrants can be redeemed by the Issuer to $18.00.
Remarks: Exhibit List Exhibit 24.1 - Power of Attorney

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.