
CUSIP No. 31567R209		13G		Page 1 of 5 Pages

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

(Rule 13d-102)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT

TO RULE 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO

RULE 13d-2

(Amendment No. 3)*

FiberTower Corporation

(Name of Issuer)

Common Stock, par value $0.001 per share

(Title of Class of Securities)

31567R209

(CUSIP Number)

December 31, 2012

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

¨ Rule 13d-1(b)

x Rule 13d-1(c)

¨ Rule 13d-1(d)

*	The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

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CUSIP No. 31567R209		13G		Page 2 of 5 Pages


1	NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Arthur J. Samberg
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) ¨ (b) ¨
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION United States
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER 8,127,317
		6	SHARED VOTING POWER 0
		7	SOLE DISPOSITIVE POWER 8,127,317
		8	SHARED DISPOSITIVE POWER 0
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 8,127,317
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) ¨
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 16.3%
12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) IN

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CUSIP No. 31567R209		13G		Page 3 of 5 Pages

Schedule 13G

Item 1

(a).

Name of Issuer:

Fibertower Corporation (the “Issuer”).

Item 1

(b).

Address of Issuer’s Principal Executive Offices:

185 Berry Street, Suite 4800, San Francisco, California 94107.

Item 2

(a).

Name of Persons Filing:

Arthur J. Samberg.

Item 2

(b).

Address of Principal Business Office or, if None, Residence:

The principal business address of Mr. Samberg is 77 Bedford Road, Katonah, New York 10536.

Item 2

(c).

Citizenship:

Mr. Samberg is a citizen of the United States.

Item 2

(d).

Title of Class of Securities:

Common Stock, $0.001 par value (the “Common Stock”).

Item 2

(e).

CUSIP Number:

31567R209.

Item 3.

If this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b) or (c), Check Whether the Person Filing is a:

(a)

Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).

(b)

Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

(c)

Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).

(d)

Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C 80a-8).

(e)

An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E).

(f)

An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F).

(g)

A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G).

(h)

A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813).

(i)

A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3).

(j)

Group, in accordance with §240.13d-1(b)(1)(ii)(J).

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CUSIP No. 31567R209		13G		Page 4 of 5 Pages


Item 4.	Ownership.

	(a)	Amount beneficially owned:

		As of December 31, 2012, Mr. Samberg may be deemed to be the beneficial owner of a total of 8,127,317 shares of Common Stock, comprising (i) 7,974,715 shares of Common Stock held in his individual capacity, (ii) 151,542 shares of Common Stock held by certain charitable foundations over which Mr. Samberg has sole voting and investment authority, and (iii) 1,060 shares of Common Stock held by certain 401(k) accounts of which Mr. Samberg may be deemed to have beneficial ownership.

	(b)	Percent of class:

		16.3%

	(c)	Number of shares as to which the person has:

		(i)	Sole power to vote or to direct the vote:

			See line 5 of cover sheet.

		(ii)	Shared power to vote or to direct the vote:

			See line 6 of cover sheet.

		(iii)	Sole power to dispose or to direct the disposition of:

			See line 7 of cover sheet.

		(iv)	Shared power to dispose or to direct the disposition of:

			See line 8 of cover sheet.

Item 5.	Ownership of Five Percent or Less of a Class.

	If this statement is being filed to report the fact that as of the date hereof the Reporting Person has ceased to be the beneficial owner of more than five percent of a class of securities, check the following ¨.

Item 6.	Ownership of More than Five Percent on Behalf of Another Person.

	Not Applicable.

Item 7.	Identification and Classification of the Subsidiary which Acquired the Security Being Reported on By the Parent Holding Company or Control Person.

	Not Applicable.

Item 8.	Identification and Classification of Members of the Group.

	Not Applicable.

Item 9.	Notice of Dissolution of Group.

	Not Applicable.

Item 10.	Certification.

	By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

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CUSIP No. 31567R209		13G		Page 5 of 5 Pages

SIGNATURES

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Dated: February 12, 2013


By:		/s/ Arthur J. Samberg
		Arthur J. Samberg

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FiberTower CORP SC 13G/A