PLANTRONICS INC /OLD/

Related Filers (1)

Ownership (7)

SC 13G/A
Thursday, 2/7/2002
VANGUARD PRIMECAP FUND/: Major Shareholders
SC 13G/A
Friday, 2/9/2001
VANGUARD/PRIMECAP FUND INC: Major Shareholders
SC 13G/A
Friday, 2/4/2000
VANGUARD/PRIMECAP FUND INC: Major Shareholders
SC 13G/A
Wednesday, 2/10/1999
VANGUARD/PRIMECAP FUND INC: Major Shareholders
SC 13G/A
Monday, 2/9/1998
VANGUARD/PRIMECAP FUND INC: Major Shareholders
SC 13G/A
Tuesday, 2/4/1997
VANGUARD/PRIMECAP FUND INC: Major Shareholders
SC 13G/A
Friday, 2/2/1996
VANGUARD/PRIMECAP FUND INC: Major Shareholders
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