SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* FLOM KERRY (Last) (First) (Middle) C/O CEPHEID 904 CARIBBEAN DRIVE (Street) SUNNYVALE CA 94089 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol CEPHEID [ CPHD ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) EVP, Regulatory Affairs
	3. Date of Earliest Transaction (Month/Day/Year) 08/07/2015
	4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/07/2015		M(1)		4,267	A	$31.485	7,048(2)	D
Common Stock	08/07/2015		M(1)		4,220	A	$35.72	11,315	D
Common Stock	08/07/2015		M(1)		29,531	A	$38.66	15,535	D
Common Stock	08/07/2015		M(1)		12,890	A	$45.84	45,066	D
Common Stock	08/07/2015		M(1)		9,584	A	$35.48	57,956	D
Common Stock	08/07/2015		S(1)		54,008	D	$51.0998(3)	67,540	D
Common Stock	08/07/2015		S(1)		11,330	D	$51.8498(3)	2,202	D
Common Stock	08/11/2015		S(1)		2,202	D	$51.39(3)	0	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Non-qualified Stock Option (Right to Buy)	$31.485	08/07/2015		M(1)			4,267	(4)	04/25/2018	Common Stock	4,267	$0.00	0	D
Non-qualified Stock Option (Right to Buy)	$35.72	08/07/2015		M(1)			4,220	(4)	04/24/2019	Common Stock	4,220	$0.00	4,219	D
Non-qualified Stock Option (Right to Buy)	$38.66	08/07/2015		M(1)			29,531	(4)	04/29/2020	Common Stock	29,531	$0.00	22,969	D
Non-qualified Stock Option (Right to Buy)	$45.84	08/07/2015		M(1)			12,890	(4)	04/21/2021	Common Stock	12,890	$0.00	28,360	D
Non-qualified Stock Option (Right to Buy)	$35.48	08/07/2015		M(1)			9,584	(5)	01/02/2020	Common Stock	9,584	$0.00	4,792	D

Explanation of Responses:

1. The transactions reported on this Form 4 were effected pursuant to a 10b5-1 trading plan adopted by the reporting person.

2. The total reflects 30,000 RSUs granted on April 27, 2015 rescinded pursuant to an agreement between the Issuer and Reporting Person.

3. The sales price reported is the weighted average sale price for the number of shares sold. Full information regarding the number of shares sold at each separate price will be supplied upon request by the Securities & Exchange Commission staff, the Issuer or a security holder of the Issuer.

4. 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.

5. 1/3 of the shares subject to the grant vest and become exercisable on the first anniversary of the grant date then 1/36th 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	08/11/2015
	** 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 4 (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).
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