PENUMBRA INC

Ticker: PEN CUSIP: 70975L107 Class: EQTY

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q4 2025

Shares 8,310 Value ($000) $2,584 Avg Close $276.19 Range $221.26 - $321.38

Q3 2025

Shares 8,108 Value ($000) $2,054 Avg Close $252.23 Range $225.48 - $288.91

Q2 2025

Shares 10,564 Value ($000) $2,711 Avg Close $272.19 Range $246.45 - $308.99

Q1 2025

Shares 6,522 Value ($000) $1,744 Avg Close $270.50 Range $222.59 - $310.00

Q4 2024

Shares 3,740 Value ($000) $888 Avg Close $227.37 Range $186.97 - $259.27

Q3 2024

Shares 8,880 Value ($000) $1,725 Avg Close $188.96 Range $148.00 - $211.19

Q2 2024

Shares 17,656 Value ($000) $3,178 Avg Close $199.64 Range $170.59 - $226.27

Q1 2024

Shares 16,674 Value ($000) $3,721 Avg Close $247.22 Range $217.37 - $277.34

Q4 2023

Shares 13,417 Value ($000) $3,375 Avg Close $221.05 Range $180.93 - $262.77

Q3 2023

Shares 9,298 Value ($000) $2,249 Avg Close $277.67 Range $239.87 - $344.04

Q2 2023

Shares 9,278 Value ($000) $3,192 Avg Close $307.06 Range $266.55 - $348.67

Q1 2023

Shares 10,286 Value ($000) $2,867 Avg Close $255.26 Range $218.55 - $283.42

Q4 2022

Shares 12,743 Value ($000) $2,835 Avg Close $195.51 Range $144.76 - $233.26

Q3 2022

Shares 12,231 Value ($000) $2,319 Avg Close $160.46 Range $118.65 - $211.48

Q2 2022

Shares 10,780 Value ($000) $1,342 Avg Close $158.67 Range $114.86 - $229.44

Q1 2022

Shares 11,133 Value ($000) $2,473 Avg Close $222.19 Range $186.19 - $287.53

Q4 2021

Shares 12,065 Value ($000) $3,467 Avg Close $264.38 Range $235.14 - $290.36

Q3 2021

Shares 10,092 Value ($000) $2,690 Avg Close $268.79 Range $243.79 - $293.19

Q2 2021

Shares 9,879 Value ($000) $2,707 Avg Close $272.91 Range $232.29 - $320.00

Q1 2021

Shares 9,971 Value ($000) $2,698 Avg Close $258.13 Range $171.56 - $314.22

Q4 2020

Shares 12,387 Value ($000) $2,168 Avg Close $219.06 Range $163.49 - $277.00

Q3 2020

Shares 11,286 Value ($000) $2,194 Avg Close $210.34 Range $178.64 - $241.81

Q2 2020

Shares 11,283 Value ($000) $2,018 Avg Close $173.55 Range $149.23 - $193.21

Q1 2020

Shares 11,363 Value ($000) $1,833 Avg Close $168.48 Range $121.80 - $194.93

Q4 2019

Shares 10,721 Value ($000) $1,761 Avg Close $159.06 Range $130.80 - $178.74

Q3 2019

Shares 6,004 Value ($000) $807 Avg Close $154.70 Range $130.66 - $185.70

Q2 2019

Shares 1,524 Value ($000) $244 Avg Close $144.42 Range $122.40 - $170.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	8,310	$2,584	$276.19	$221.26 - $321.38
Q3 2025	8,108	$2,054	$252.23	$225.48 - $288.91
Q2 2025	10,564	$2,711	$272.19	$246.45 - $308.99
Q1 2025	6,522	$1,744	$270.50	$222.59 - $310.00
Q4 2024	3,740	$888	$227.37	$186.97 - $259.27
Q3 2024	8,880	$1,725	$188.96	$148.00 - $211.19
Q2 2024	17,656	$3,178	$199.64	$170.59 - $226.27
Q1 2024	16,674	$3,721	$247.22	$217.37 - $277.34
Q4 2023	13,417	$3,375	$221.05	$180.93 - $262.77
Q3 2023	9,298	$2,249	$277.67	$239.87 - $344.04
Q2 2023	9,278	$3,192	$307.06	$266.55 - $348.67
Q1 2023	10,286	$2,867	$255.26	$218.55 - $283.42
Q4 2022	12,743	$2,835	$195.51	$144.76 - $233.26
Q3 2022	12,231	$2,319	$160.46	$118.65 - $211.48
Q2 2022	10,780	$1,342	$158.67	$114.86 - $229.44
Q1 2022	11,133	$2,473	$222.19	$186.19 - $287.53
Q4 2021	12,065	$3,467	$264.38	$235.14 - $290.36
Q3 2021	10,092	$2,690	$268.79	$243.79 - $293.19
Q2 2021	9,879	$2,707	$272.91	$232.29 - $320.00
Q1 2021	9,971	$2,698	$258.13	$171.56 - $314.22
Q4 2020	12,387	$2,168	$219.06	$163.49 - $277.00
Q3 2020	11,286	$2,194	$210.34	$178.64 - $241.81
Q2 2020	11,283	$2,018	$173.55	$149.23 - $193.21
Q1 2020	11,363	$1,833	$168.48	$121.80 - $194.93
Q4 2019	10,721	$1,761	$159.06	$130.80 - $178.74
Q3 2019	6,004	$807	$154.70	$130.66 - $185.70
Q2 2019	1,524	$244	$144.42	$122.40 - $170.00