PACIFIC BIOSCIENCES CALIF IN

Ticker: PACB CUSIP: 69404D108 Class: COM

WESTFIELD CAPITAL MANAGEMENT CO LP's Holding History (CIK: 0001177719)

Note: Option positions (PUT/CALL) are excluded.

Q4 2021

Shares 858,583 Value ($000) $17,567 Avg Close $24.13 Range $18.26 - $31.10

Q3 2021

Shares 1,737,125 Value ($000) $44,384 Avg Close $29.63 Range $24.31 - $35.58

Q2 2021

Shares 1,684,958 Value ($000) $58,923 Avg Close $29.09 Range $20.22 - $37.42

Q1 2021

Shares 1,396,596 Value ($000) $46,521 Avg Close $35.00 Range $24.47 - $53.69

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2021	858,583	$17,567	$24.13	$18.26 - $31.10
Q3 2021	1,737,125	$44,384	$29.63	$24.31 - $35.58
Q2 2021	1,684,958	$58,923	$29.09	$20.22 - $37.42
Q1 2021	1,396,596	$46,521	$35.00	$24.47 - $53.69