UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 12b-25

NOTIFICATION OF LATE FILING

(Check one):	o Form 10-K	o Form 20-F	o Form 11-K	x Form 10-Q	o Form 10-D
	o Form N-SAR	o Form N-CSR
	For Period Ended:	September 27, 2014
	o Transition Report on Form 10-K
	o Transition Report on Form 20-F
	o Transition Report on Form 11-K
	o Transition Report on Form 10-Q
	o Transition Report on Form N-SAR
	For the Transition Period Ended:

Read Instructions (on back page) Before Preparing Form. Please Print or Type.

Nothing in this form shall be construed to imply that the Commission has verified any information contained herein.

If the notification relates to a portion of the filing checked above, identify the Item(s) to which the notification relates:

PART I — REGISTRANT INFORMATION

GT Advanced Technologies Inc.

Full Name of Registrant

Former Name if Applicable

243 Daniel Webster Highway

Address of Principal Executive Office (Street and Number)

Merrimack, New Hampshire 03054

City, State and Zip Code

PART II — RULES 12b-25(b) AND (c)

If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule 12b-25(b), the following should be completed. (Check box if appropriate)

	(a)	The reason described in reasonable detail in Part III of this form could not be eliminated without unreasonable effort or expense
o	(b)	The subject annual report, semi-annual report, transition report on Form 10-K, Form 20-F, Form 11-K, Form N-SAR or Form N-CSR, or portion thereof, will be filed on or before the fifteenth calendar day following the prescribed due date; or the subject quarterly report or transition report on Form 10-Q or subject distribution report on Form 10-D, or portion thereof, will be filed on or before the fifth calendar day following the prescribed due date; and
	(c)	The accountant’s statement or other exhibit required by Rule 12b-25(c) has been attached if applicable.

PART III — NARRATIVE

State below in reasonable detail why Forms 10-K, 20-F, 11-K, 10-Q, 10-D, N-SAR, N-CSR, or the transition report or portion thereof, could not be filed within the prescribed time period.

GT Advanced Technologies Inc. (“the Company”) is unable to file its Quarterly Report on Form 10-Q for the quarter ended September 27, 2014 by the November 6, 2014 due date or within the five calendar day extension period permitted by the applicable rules of the U.S. Securities and Exchange Commission.  As previously disclosed, on October 6, 2014, the Company and certain of its subsidiaries (collectively, the “Debtors”) filed voluntary petitions in the United States Bankruptcy Court for the District of New Hampshire (the “Bankruptcy Court”) for reorganization relief under the provisions of Chapter 11 of Title 11 of the United States Code (the “Bankruptcy Code”). The Debtors’ Chapter 11 cases (the “Chapter 11 Cases”) are being jointly administered under the caption In re GT Advanced Technologies Inc., et al, Case No. 14-11916-HJB.

The Company is unable to file its Form 10-Q for the fiscal quarter ended September 27, 2014 due to the extensive effort and expense required to (i) operate the Company’s business and restructure the Company’s financial obligations under the protection of the Bankruptcy Court, (ii) meet the reporting requirements of the Bankruptcy Court and the Bankruptcy Code, and (iii) satisfy the Company’s obligations to other parties with interests in the Chapter 11 Cases. In addition, the Chapter 11 filings require the Company to make extensive changes to the financial and other disclosures that would otherwise be included in its Form 10-Q for the fiscal period ended September 27, 2014. As a result, the Company has determined that it is unable to file its Form 10-Q without unreasonable effort and expense.

PART IV — OTHER INFORMATION

(1	)	Name and telephone number of person to contact in regard to this notification
		Hoil Kim	603	883-5200
		(Name)	(Area Code)	(Telephone Number)
(2	)	Have all other periodic reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 or Section 30 of the Investment Company Act of 1940 during the preceding 12 months or for such shorter period that the registrant was required to file such report(s) been filed? If answer is no, identify report(s).
				x Yes    o No
(3	)	Is it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings statements to be included in the subject report or portion thereof?
				x Yes    o No
		If so, attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made.

The Company is currently in the process of determining what impact the conditions that gave rise to the Chapter 11 Cases have had on its financial condition and results of operations. As a result of the demands that the Chapter 11 Cases have placed on the Company’s senior management, remaining personnel and limited resources, the Company cannot reasonably estimate the results of operations for the quarterly period ended September 27, 2014.

GT Advanced Technologies Inc.

(Name of Registrant as Specified in Charter)

has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized.

Date	November 7, 2014	By	/s/ Hoil Kim
			Title:  Vice President and General Counsel

INSTRUCTION: The form may be signed by an executive officer of the registrant or by any other duly authorized representative. The name and title of the person signing the form shall be typed or printed beneath the signature. If the statement is signed on behalf of the registrant by an authorized representative (other than an executive officer), evidence of the representative’s authority to sign on behalf of the registrant shall be filed with the form.

	ATTENTION
Intentional misstatements or omissions of fact constitute Federal Criminal Violations (See 18 U.S.C. 1001).