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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
820237	Gen Probe Inc	GPRO	Surgical & Medical Instruments & Apparatus (3841)	330044608

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1230054	L Henry Nordhoff	Gen-Probe Incorporated 10210 Genetic Center Drive San Diego CA 92121		Yes	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2010-01-13	8,300	$29.53	130,026	No	4	M	Direct
Common Stock	Disposition	2010-01-13	8,300	$44.95	121,726	No	4	S	Direct
Common Stock	Acquisiton	2010-01-14	68,626	$29.53	190,352	No	4	M	Direct
Common Stock	Disposition	2010-01-14	68,626	$44.95	121,726	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	S	Direct
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (Right to Buy)	Disposition	2010-01-13	8,300	$0.00	8,300	$29.53
Common Stock	Stock Option (Right to Buy)	Disposition	2010-01-14	68,626	$0.00	68,626	$29.53

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
91,700		2010-05-17	No	4	M	Direct
23,074		2010-05-17	No	4	M	Direct

Footnotes

The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 31, 2009, as amended on December 14, 2009.
The Stock Option became fully vested and exercisable as of August 15, 2007.
In accordance with the terms of the applicable stock option agreements, the Reporting Person must exercise all outstanding stock options issued to him prior to February 7, 2007 on or before May 17, 2010 (the first anniversary of his retirement as Chief Executive Officer) or all such stock options will expire.