WATERS CORP

Ticker: WAT CUSIP: 941848103 Class: COM

PARTHENON LLC's Holding History (CIK: 0001088859)

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

Q4 2025

Shares 29,098 Value ($000) $11,052 Avg Close $367.96 Range $299.63 - $414.15

Q3 2025

Shares 30,261 Value ($000) $9,073 Avg Close $301.75 Range $275.05 - $366.68

Q2 2025

Shares 31,731 Value ($000) $11,075 Avg Close $343.81 Range $297.14 - $368.02

Q1 2025

Shares 32,586 Value ($000) $12,010 Avg Close $387.18 Range $355.00 - $423.56

Q4 2024

Shares 32,881 Value ($000) $12,198 Avg Close $365.79 Range $321.32 - $397.02

Q3 2024

Shares 32,181 Value ($000) $11,582 Avg Close $325.56 Range $279.24 - $363.55

Q2 2024

Shares 32,256 Value ($000) $9,358 Avg Close $319.12 Range $283.59 - $367.21

Q1 2024

Shares 32,846 Value ($000) $11,307 Avg Close $328.72 Range $293.46 - $363.80

Q4 2023

Shares 33,346 Value ($000) $10,979 Avg Close $276.19 Range $231.90 - $335.40

Q3 2023

Shares 33,496 Value ($000) $9,185 Avg Close $276.34 Range $256.06 - $300.77

Q2 2023

Shares 33,816 Value ($000) $9,013 Avg Close $278.30 Range $248.18 - $313.25

Q1 2023

Shares 33,816 Value ($000) $10,470 Avg Close $323.46 Range $291.95 - $350.97

Q4 2022

Shares 33,966 Value ($000) $11,636 Avg Close $316.35 Range $265.61 - $353.71

Q3 2022

Shares 34,216 Value ($000) $9,222 Avg Close $319.20 Range $269.37 - $369.00

Q2 2022

Shares 34,216 Value ($000) $11,325 Avg Close $317.42 Range $288.32 - $344.15

Q1 2022

Shares 34,778 Value ($000) $10,795 Avg Close $325.36 Range $297.65 - $372.24

Q4 2021

Shares 34,798 Value ($000) $12,966 Avg Close $349.78 Range $324.35 - $375.24

Q3 2021

Shares 38,468 Value ($000) $13,745 Avg Close $391.72 Range $343.15 - $428.22

Q2 2021

Shares 44,466 Value ($000) $15,368 Avg Close $316.51 Range $279.69 - $349.07

Q1 2021

Shares 44,481 Value ($000) $12,640 Avg Close $273.06 Range $244.77 - $299.06

Q4 2020

Shares 44,046 Value ($000) $10,898 Avg Close $226.59 Range $192.54 - $252.67

Q3 2020

Shares 44,778 Value ($000) $8,762 Avg Close $207.83 Range $179.76 - $239.74

Q2 2020

Shares 45,033 Value ($000) $8,124 Avg Close $189.00 Range $171.38 - $210.90

Q1 2020

Shares 45,038 Value ($000) $8,199 Avg Close $210.92 Range $154.39 - $245.68

Q4 2019

Shares 46,433 Value ($000) $10,849 Avg Close $220.88 Range $204.58 - $236.37

Q3 2019

Shares 46,803 Value ($000) $10,448 Avg Close $215.83 Range $199.87 - $237.51

Q2 2019

Shares 47,703 Value ($000) $10,268 Avg Close $218.51 Range $199.11 - $255.21

Q1 2019

Shares 47,888 Value ($000) $12,054 Avg Close $227.86 Range $174.95 - $252.24

Q4 2018

Shares 48,188 Value ($000) $9,091 Avg Close $189.96 Range $167.94 - $204.64

Q3 2018

Shares 48,038 Value ($000) $9,352 Avg Close $193.64 Range $184.81 - $202.79

Q2 2018

Shares 49,038 Value ($000) $9,493 Avg Close $196.97 Range $187.28 - $211.78

Q1 2018

Shares 48,358 Value ($000) $9,606 Avg Close $206.81 Range $187.66 - $220.20

Q4 2017

Shares 48,358 Value ($000) $9,342 Avg Close $193.09 Range $179.27 - $201.95

Q3 2017

Shares 48,325 Value ($000) $8,675 Avg Close $181.32 Range $171.32 - $190.39

Q2 2017

Shares 49,750 Value ($000) $9,146 Avg Close $173.76 Range $154.15 - $187.65

Q1 2017

Shares 49,750 Value ($000) $7,776 Avg Close $149.35 Range $134.68 - $158.81

Q4 2016

Shares 53,476 Value ($000) $7,187 Avg Close $142.72 Range $133.35 - $160.00

Q3 2016

Shares 53,751 Value ($000) $8,519 Avg Close $154.74 Range $140.50 - $162.53

Q2 2016

Shares 54,076 Value ($000) $7,606 Avg Close $135.27 Range $128.90 - $140.75

Q1 2016

Shares 54,611 Value ($000) $7,204 Avg Close $124.75 Range $112.00 - $133.02

Q4 2015

Shares 54,691 Value ($000) $7,360 Avg Close $128.50 Range $115.21 - $136.95

Q3 2015

Shares 55,821 Value ($000) $6,599 Avg Close $126.49 Range $113.98 - $136.17

Q2 2015

Shares 56,331 Value ($000) $7,232 Avg Close $129.76 Range $120.79 - $137.39

Q1 2015

Shares 57,961 Value ($000) $7,206 Avg Close $119.29 Range $111.77 - $125.86

Q4 2014

Shares 57,041 Value ($000) $6,430 Avg Close $109.55 Range $93.56 - $117.71

Q3 2014

Shares 56,966 Value ($000) $5,646 Avg Close $103.09 Range $99.08 - $108.89

Q2 2014

Shares 56,991 Value ($000) $5,952 Avg Close $105.18 Range $97.86 - $114.36

Q1 2014

Shares 56,391 Value ($000) $6,113 Avg Close $108.40 Range $97.90 - $115.06

Q4 2013

Shares 57,791 Value ($000) $5,779 Avg Close $100.80 Range $94.50 - $107.13

Q3 2013

Shares 57,682 Value ($000) $6,126 Avg Close $102.55 Range $97.53 - $108.89

Q2 2013

Shares 57,982 Value ($000) $5,801 Avg Close $95.76 Range $87.85 - $102.69

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	29,098	$11,052	$367.96	$299.63 - $414.15
Q3 2025	30,261	$9,073	$301.75	$275.05 - $366.68
Q2 2025	31,731	$11,075	$343.81	$297.14 - $368.02
Q1 2025	32,586	$12,010	$387.18	$355.00 - $423.56
Q4 2024	32,881	$12,198	$365.79	$321.32 - $397.02
Q3 2024	32,181	$11,582	$325.56	$279.24 - $363.55
Q2 2024	32,256	$9,358	$319.12	$283.59 - $367.21
Q1 2024	32,846	$11,307	$328.72	$293.46 - $363.80
Q4 2023	33,346	$10,979	$276.19	$231.90 - $335.40
Q3 2023	33,496	$9,185	$276.34	$256.06 - $300.77
Q2 2023	33,816	$9,013	$278.30	$248.18 - $313.25
Q1 2023	33,816	$10,470	$323.46	$291.95 - $350.97
Q4 2022	33,966	$11,636	$316.35	$265.61 - $353.71
Q3 2022	34,216	$9,222	$319.20	$269.37 - $369.00
Q2 2022	34,216	$11,325	$317.42	$288.32 - $344.15
Q1 2022	34,778	$10,795	$325.36	$297.65 - $372.24
Q4 2021	34,798	$12,966	$349.78	$324.35 - $375.24
Q3 2021	38,468	$13,745	$391.72	$343.15 - $428.22
Q2 2021	44,466	$15,368	$316.51	$279.69 - $349.07
Q1 2021	44,481	$12,640	$273.06	$244.77 - $299.06
Q4 2020	44,046	$10,898	$226.59	$192.54 - $252.67
Q3 2020	44,778	$8,762	$207.83	$179.76 - $239.74
Q2 2020	45,033	$8,124	$189.00	$171.38 - $210.90
Q1 2020	45,038	$8,199	$210.92	$154.39 - $245.68
Q4 2019	46,433	$10,849	$220.88	$204.58 - $236.37
Q3 2019	46,803	$10,448	$215.83	$199.87 - $237.51
Q2 2019	47,703	$10,268	$218.51	$199.11 - $255.21
Q1 2019	47,888	$12,054	$227.86	$174.95 - $252.24
Q4 2018	48,188	$9,091	$189.96	$167.94 - $204.64
Q3 2018	48,038	$9,352	$193.64	$184.81 - $202.79
Q2 2018	49,038	$9,493	$196.97	$187.28 - $211.78
Q1 2018	48,358	$9,606	$206.81	$187.66 - $220.20
Q4 2017	48,358	$9,342	$193.09	$179.27 - $201.95
Q3 2017	48,325	$8,675	$181.32	$171.32 - $190.39
Q2 2017	49,750	$9,146	$173.76	$154.15 - $187.65
Q1 2017	49,750	$7,776	$149.35	$134.68 - $158.81
Q4 2016	53,476	$7,187	$142.72	$133.35 - $160.00
Q3 2016	53,751	$8,519	$154.74	$140.50 - $162.53
Q2 2016	54,076	$7,606	$135.27	$128.90 - $140.75
Q1 2016	54,611	$7,204	$124.75	$112.00 - $133.02
Q4 2015	54,691	$7,360	$128.50	$115.21 - $136.95
Q3 2015	55,821	$6,599	$126.49	$113.98 - $136.17
Q2 2015	56,331	$7,232	$129.76	$120.79 - $137.39
Q1 2015	57,961	$7,206	$119.29	$111.77 - $125.86
Q4 2014	57,041	$6,430	$109.55	$93.56 - $117.71
Q3 2014	56,966	$5,646	$103.09	$99.08 - $108.89
Q2 2014	56,991	$5,952	$105.18	$97.86 - $114.36
Q1 2014	56,391	$6,113	$108.40	$97.90 - $115.06
Q4 2013	57,791	$5,779	$100.80	$94.50 - $107.13
Q3 2013	57,682	$6,126	$102.55	$97.53 - $108.89
Q2 2013	57,982	$5,801	$95.76	$87.85 - $102.69