FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF 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

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1. Name and Address of Reporting Person *   Davis Barbara M 2. Date of Event Requiring Statement (Month/Day/Year) 05/22/2007 3. Issuer Name and Ticker or Trading Symbol GREATBATCH, INC. [GB] (Last) (First) (Middle) 9645 WEHRLE DRIVE 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Vice President, Human Resource 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) CLARENCE, NY 14031 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 Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common 4,063 D   Common 2,415.993 I By 401(k)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee stock options	  (1)	07/26/2012	Common	2,000	$ 25.36	D	Â
Employee stock options	  (1)	07/01/2013	Common	2,000	$ 35.7	D	Â
Employee stock options	  (2)	05/25/2014	Common	2,363	$ 26.65	D	Â
Employee stock options	  (1)	07/01/2014	Common	2,800	$ 27.5	D	Â
Employee stock options	  (3)	03/31/2015	Common	5,459	$ 18.24	D	Â
Employee stock options	  (4)	06/08/2015	Common	5,158	$ 23.6	D	Â
Employee stock options	  (5)	03/06/2017	Common	3,917	$ 25.5	D	Â
Employee Stock options	  (1)	11/05/2008	Common	315	$ 15	D	Â
Employee Stock options	  (6)	02/13/2016	Common	5,596	$ 25.22	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Davis Barbara M 9645 WEHRLE DRIVE CLARENCE, NY 14031	Â	Â	  Vice President, Human Resource	Â

Signatures

/s/ Christopher J. Thome as attorney-in-fact for Barbara M. Davis		05/23/2007
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(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)	Stock option is fully exercisable as of May 22, 2007.
(2)	On May 25, 2004, the reporting person was granted an option to purchase 2,363 shares of common stock. The option vests in December of each year, subject to certain performance criteria by the issuer or in full on the seventh anniversary of the date of the grant. 1,512 shares are exercisable as of May 22, 2007.
(3)	These non-qualified options vest in four equal installments beginning with 25% on December 31, 2005; 25% on December 31, 2006; 25% on December 31, 2007; and 25% on December 31, 2008.
(4)	On June 8, 2005, the reporting person was granted an option to purchase 5,158 shares of common stock. The option vests on December 31, 2008, subject to certain performance criteria by the issuer or in full on the seventh anniversary of the date of the grant.
(5)	These non-qualified options vest in four equal installments beginning with 25% on December 31, 2007; 25% on December 31, 2008; 25% on December 31, 2009; and 25% on December 31, 2010.
(6)	These non-qualified options vest in four equal installments beginning with 25% on December 31, 2006; 25% on December 31, 2007; 25% on December 31, 2008; and 25% on December 31, 2009.

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