| Type | Filed | Filer | Subject | Shares Owned | Percent Owned | |
|---|---|---|---|---|---|---|
| SC 13G/A | 2022-09-08 | PRIMECAP MANAGEMENT CO/CA/ | PLANTRONICS INC /CA/ | 0 | 0.0% | EDGAR |
| SC 13G/A | 2022-04-11 | AMERIPRISE FINANCIAL INC | PLANTRONICS INC /CA/ | 1,450,448 | 3.4% | EDGAR |
| SC 13G/A | 2022-02-15 | DISCIPLINED GROWTH INVESTORS INC /MN | PLANTRONICS INC /CA/ | 2,561,254 | 6.0% | EDGAR |
| SC 13G/A | 2022-02-14 | AMERIPRISE FINANCIAL INC | PLANTRONICS INC /CA/ | 7,046,692 | - | EDGAR |
| SC 13G/A | 2022-02-10 | PRIMECAP MANAGEMENT CO/CA/ | PLANTRONICS INC /CA/ | 6,335,050 | 14.8% | EDGAR |
| SC 13G | 2022-02-10 | VANGUARD GROUP INC | PLANTRONICS INC /CA/ | 5,087,085 | 11.9% | EDGAR |
| SC 13G/A | 2022-01-27 | BlackRock Inc. | PLANTRONICS INC /CA/ | 6,691,571 | 15.7% | EDGAR |
| SC 13G/A | 2022-01-26 | BlackRock Inc. | PLANTRONICS INC /CA/ | 6,691,571 | 15.7% | EDGAR |
| SC 13G | 2021-02-16 | DISCIPLINED GROWTH INVESTORS INC /MN | PLANTRONICS INC /CA/ | 2,883,930 | 7.0% | EDGAR |
| SC 13G/A | 2021-02-12 | PRIMECAP MANAGEMENT CO/CA/ | PLANTRONICS INC /CA/ | 6,089,450 | 14.8% | EDGAR |
| SC 13G/A | 2021-02-12 | AMERIPRISE FINANCIAL INC | PLANTRONICS INC /CA/ | 5,067,578 | 12.3% | EDGAR |
| SC 13G/A | 2021-01-26 | BlackRock Inc. | PLANTRONICS INC /CA/ | 5,625,597 | 13.6% | EDGAR |
| SC 13G/A | 2021-01-08 | VANGUARD GROUP INC | PLANTRONICS INC /CA/ | 4,389,478 | 10.6% | EDGAR |
| SC 13D/A | 2020-11-24 | Siris Capital Group, LLC | PLANTRONICS INC /CA/ | 1,973,884 | 4.8% | EDGAR |
| SC 13D/A | 2020-08-31 | Siris Capital Group, LLC | PLANTRONICS INC /CA/ | 3,036,535 | 7.5% | EDGAR |
| SC 13G | 2020-08-10 | AMERIPRISE FINANCIAL INC | PLANTRONICS INC /CA/ | 4,159,416 | 10.2% | EDGAR |
| SC 13D/A | 2020-02-26 | Siris Capital Group, LLC | PLANTRONICS INC /CA/ | 7,102,201 | 17.8% | EDGAR |
| SC 13G | 2020-02-14 | AMERIPRISE FINANCIAL INC | PLANTRONICS INC /CA/ | 2,848,617 | 7.1% | EDGAR |
| SC 13G/A | 2020-02-12 | VANGUARD CHESTER FUNDS | PLANTRONICS INC /CA/ | 0 | 0.0% | EDGAR |
| SC 13G/A | 2020-02-12 | VANGUARD GROUP INC | PLANTRONICS INC /CA/ | 3,676,344 | 9.2% | EDGAR |