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Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001104659-18-049951
Filing Date
2018-08-06
Accepted
2018-08-06 21:29:04
Documents
2
Period of Report
2018-08-02

Document Format Files

Seq Description Document Type Size
1 4 a4.html 4  
1 4 a4.xml 4 18198
2 EX-99.1 ex-99d1.htm EX-99.1 42851
  Complete submission text file 0001104659-18-049951.txt   68182
Mailing Address 345 ENCINAL STREET PO BOX 1802 SANTA CRUZ CA 95061-1802
Business Address 345 ENCINAL ST SANTA CRUZ CA 95061-1802 8314587828
PLANTRONICS INC /CA/ (Issuer) CIK: 0000914025 (see all company filings)

IRS No.: 770207692 | State of Incorp.: DE | Fiscal Year End: 0330
SIC: 3661 Telephone & Telegraph Apparatus

Mailing Address C/O SIRIS CAPITAL GROUP 601 LEXINGTON AVE., 59TH FL. NEW YORK NY 10022
Business Address C/O SIRIS CAPITAL GROUP 601 LEXINGTON AVE., 59TH FL. NEW YORK NY 10022 212-231-0095
Siris Partners III, L.P. (Reporting) CIK: 0001626559 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1214
Type: 4 | Act: 34 | File No.: 001-12696 | Film No.: 18996127

Mailing Address C/O SIRIS CAPITAL GROUP 601 LEXINGTON AVE., 59TH FL. NEW YORK NY 10022
Business Address C/O SIRIS CAPITAL GROUP 601 LEXINGTON AVE., 59TH FL. NEW YORK NY 10022 212-231-0095
Siris Partners III Parallel, L.P. (Reporting) CIK: 0001626560 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1214
Type: 4 | Act: 34 | File No.: 001-12696 | Film No.: 18996126

Mailing Address 601 LEXINGTON AVENUE, 59TH STREET NEW YORK NY 10022
Business Address 601 LEXINGTON AVENUE, 59TH STREET NEW YORK NY 10022 212-231-0095
Triangle Private Investments, LLC (Reporting) CIK: 0001685464 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-12696 | Film No.: 18996128

Mailing Address C/O SIRIS CAPITAL GROUP 601 LEXINGTON AVENUE, 59TH FLOOR NEW YORK NY 10022
Business Address C/O SIRIS CAPITAL GROUP 601 LEXINGTON AVENUE, 59TH FLOOR NEW YORK NY 10022 2122310095
Siris Capital Group, LLC (Reporting) CIK: 0001705438 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-12696 | Film No.: 18996122

Mailing Address C/O SIRIS CAPITAL GROUP 601 LEXINGTON AVENUE, 59TH FLOOR NEW YORK NY 10022
Business Address C/O SIRIS CAPITAL GROUP 601 LEXINGTON AVENUE, 59TH FLOOR NEW YORK NY 10022 2122310095
Siris Capital Group III, L.P. (Reporting) CIK: 0001705439 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-12696 | Film No.: 18996123

Mailing Address C/O SIRIS CAPITAL GROUP 601 LEXINGTON AVENUE, 59TH FLOOR NEW YORK NY 10022
Business Address C/O SIRIS CAPITAL GROUP 601 LEXINGTON AVENUE, 59TH FLOOR NEW YORK NY 10022 2122310095
Siris Advisor HoldCo III, LLC (Reporting) CIK: 0001705440 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-12696 | Film No.: 18996121

Mailing Address C/O SIRIS CAPITAL GROUP 601 LEXINGTON AVENUE, 59TH FLOOR NEW YORK NY 10022
Business Address C/O SIRIS CAPITAL GROUP 601 LEXINGTON AVENUE, 59TH FLOOR NEW YORK NY 10022 2122310095
Siris GP HoldCo III, LLC (Reporting) CIK: 0001705465 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-12696 | Film No.: 18996124

Mailing Address C/O SIRIS CAPITAL GROUP 601 LEXINGTON AVENUE, 59TH FLOOR NEW YORK NY 10022
Business Address C/O SIRIS CAPITAL GROUP 601 LEXINGTON AVENUE, 59TH FLOOR NEW YORK NY 10022 212-231-0095
Siris Advisor HoldCo, LLC (Reporting) CIK: 0001705515 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-12696 | Film No.: 18996120

Mailing Address C/O SIRIS CAPITAL GROUP 601 LEXINGTON AVENUE, 59TH FLOOR NEW YORK NY 10022
Business Address C/O SIRIS CAPITAL GROUP 601 LEXINGTON AVENUE, 59TH FLOOR NEW YORK NY 10022 2122310095
Siris Partners GP III, L.P. (Reporting) CIK: 0001705701 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-12696 | Film No.: 18996125

Mailing Address 601 LEXINGTON AVENUE, 59TH FLOOR NEW YORK NY 10022
Business Address 601 LEXINGTON AVENUE, 59TH FLOOR NEW YORK NY 10022 2122310095
Triangle Private Holdings I, LLC (Reporting) CIK: 0001737027 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-12696 | Film No.: 18996129