SEC Form 3

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 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* Campbell Scott A. (Last) (First) (Middle) C/O CEPHEID 904 CARIBBEAN DRIVE (Street) SUNNYVALE CA 94089 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 08/15/2015	3. Issuer Name and Ticker or Trading Symbol CEPHEID [ CPHD ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) VP, Clinical Affairs & CRO	5. If Amendment, Date of 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

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 Stock	9,216(1)	D

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: 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 Option (Right to Buy)	04/30/2013(2)	04/30/2019	Common Stock	5,000	$38.41	D
Employee Stock Option (Right to Buy)	04/29/2014(2)	04/29/2020	Common Stock	4,063	$38.66	D
Employee Stock Option (Right to Buy)	04/21/2015(2)	04/21/2021	Common Stock	4,063	$45.84	D
Employee Stock Option (Right to Buy)	05/02/2016(2)	05/02/2022	Common Stock	33,000	$56.06	D

Explanation of Responses:

1. a. 313 shares are RSUs that vest 6.25% quarterly, beginning on October 31, 2015, until such time as the RSUs are 100% vested; b. 593 shares are RSUs that vest 6.25% quarterly, beginning on October 29, 2015, until such time as the RSUs are 100% vested; c. 931 shares are RSUs that vest 6.25% quarterly, beginning on October 21, 2015, until such time as the RSUs are 100% vested; and d. 3,666 shares are RSUs that vest 25% on the one-year anniversary of May 2, 2015, then 6.25% quarterly thereafter, until such time as the RSUs are 100% vested. All vestings are subject to the continuing employment of the Reporting Person on each vesting date. Shares of the Issuer's common stock will be delivered to the Reporting Person upon vesting.

2. 25% of the shares subject to the grant vest and become exercisable on the one-year anniversary of the grant date, then 2.0833% of the shares subject to the grant vest and become exercisable each month thereafter, until such time as the option is 100% vested, subject to the continuing employment of the Reporting Person on each vesting date.

Remarks:

	/s/ Jacobin Zorin, Attorney-In-Fact	08/19/2015
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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 Number.