Sec Form 4 Filing - KANNAPPAN S KENNETH @ PLANTRONICS INC /CA/ - 2017-02-09

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

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, 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 KANNAPPAN S KENNETH 2. Issuer Name and Ticker or Trading Symbol PLANTRONICS INC /CA/ [ PLT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) EXECUTIVE VICE CHAIRMAN (Last) (First) (Middle) 345 ENCINAL STREET 3. Date of Earliest Transaction (MM/DD/YY) 02/09/2017 (Street) SANTA CRUZ, CA95060 4. If Amendment, Date Original Filed (MM/DD/YY) 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 Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 02/09/2017 M 800 A $ 36.67 106,038 D COMMON STOCK 02/09/2017 S 800 D $ 53.43 105,238 D COMMON STOCK 02/09/2017 M 500 A $ 36.67 105,738 D COMMON STOCK 02/09/2017 S 500 D $ 53.425 105,238 D COMMON STOCK 02/09/2017 M 1,090 A $ 36.67 106,328 D COMMON STOCK 02/09/2017 S 1,090 D $ 53.42 105,238 D COMMON STOCK 02/09/2017 M 700 A $ 36.67 105,938 D COMMON STOCK 02/09/2017 S 700 D $ 53.41 105,238 D COMMON STOCK 02/09/2017 M 100 A $ 36.67 105,338 D COMMON STOCK 02/09/2017 S 100 D $ 53.405 105,238 D COMMON STOCK 02/09/2017 M 1,080 A $ 36.67 106,318 D COMMON STOCK 02/09/2017 S 1,080 D $ 53.4 105,238 D COMMON STOCK 02/09/2017 M 300 A $ 36.67 105,538 D COMMON STOCK 02/09/2017 S 300 D $ 53.39 105,238 D COMMON STOCK 02/09/2017 M 200 A $ 36.67 105,438 D COMMON STOCK 02/09/2017 S 200 D $ 53.38 105,238 D COMMON STOCK 02/09/2017 M 700 A $ 36.67 105,938 D COMMON STOCK 02/09/2017 S 700 D $ 53.37 105,238 D COMMON STOCK 200 I by Son

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 of Derivative Security: 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) $ 36.67 02/09/2017 M 100 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 100 $ 53.75 96,694 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 100 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 100 $ 53.72 96,594 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 238 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 238 $ 53.71 96,356 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 100 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 100 $ 53.69 96,256 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 125 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 125 $ 53.66 96,131 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 300 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 300 $ 53.63 95,831 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 237 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 237 $ 53.62 95,594 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 100 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 100 $ 53.615 95,494 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 494 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 494 $ 53.61 95,000 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 3,000 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 3,000 $ 53.6 92,000 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 121 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 121 $ 53.59 91,879 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 100 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 100 $ 53.585 91,779 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 200 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 200 $ 53.58 91,579 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 203 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 203 $ 53.57 91,376 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 698 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 698 $ 53.56 90,678 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 399 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 399 $ 53.55 90,279 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 601 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 601 $ 53.54 89,678 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 202 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 202 $ 53.53 89,476 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 100 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 100 $ 53.525 89,376 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 500 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 500 $ 53.52 88,876 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 397 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 397 $ 53.51 88,479 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 200 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 200 $ 53.505 88,279 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 479 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 479 $ 53.5 87,800 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 721 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 721 $ 53.49 87,079 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 899 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 899 $ 53.48 86,180 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 1,200 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 1,200 $ 53.47 84,980 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 820 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 820 $ 53.46 84,160 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 100 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 100 $ 53.455 84,060 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 900 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 900 $ 53.45 83,160 D Non-Qualified Stock Option (right to buy) $ 36.67 02/09/2017 M 790 05/06/2012( 1 ) 05/06/2018 COMMON STOCK 790 $ 53.44 82,370 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other KANNAPPAN S KENNETH 345 ENCINAL STREET SANTA CRUZ, CA95060 EXECUTIVE VICE CHAIRMAN Signatures S KENNETH KANNAPPAN 02/13/2017 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Option was granted by the Issuer pursuant to a Rule 16-b plan and becomes exercisable as follows: 33.3% of the shares subject to the option vest 12 months from date of grant; and 1/36th of the shares subject to option vest each month thereafter.

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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