WATSCO INC

Ticker: WSO CUSIP: 942622200 Class: Com

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's Holding History (CIK: 0001644956)

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

Q2 2025

Shares 13,202 Value ($000) $5,830 Avg Close $463.89 Range $418.31 - $521.09

Q1 2025

Shares 28,837 Value ($000) $14,658 Avg Close $492.90 Range $457.76 - $535.40

Q4 2024

Shares 52,464 Value ($000) $24,862 Avg Close $506.45 Range $454.91 - $571.42

Q3 2024

Shares 74,547 Value ($000) $36,668 Avg Close $480.65 Range $439.08 - $520.41

Q2 2024

Shares 65,067 Value ($000) $30,142 Avg Close $457.10 Range $396.82 - $493.65

Q1 2024

Shares 66,966 Value ($000) $28,927 Avg Close $401.75 Range $373.33 - $441.29

Q4 2023

Shares 63,085 Value ($000) $27,030 Avg Close $387.45 Range $338.58 - $433.19

Q3 2023

Shares 61,286 Value ($000) $23,149 Avg Close $361.55 Range $337.58 - $386.40

Q2 2023

Shares 76,822 Value ($000) $29,305 Avg Close $339.09 Range $298.79 - $383.83

Q1 2023

Shares 96,029 Value ($000) $30,553 Avg Close $293.75 Range $251.49 - $343.85

Q4 2022

Shares 99,412 Value ($000) $24,793 Avg Close $262.94 Range $228.61 - $287.20

Q3 2022

Shares 115,462 Value ($000) $29,727 Avg Close $270.99 Range $230.00 - $306.61

Q2 2019

Shares 122,264 Value ($000) $19,994 Avg Close $157.07 Range $141.46 - $169.39

Q1 2019

Shares 61,235 Value ($000) $8,769 Avg Close $143.49 Range $136.35 - $153.49

Q3 2018

Shares 157,391 Value ($000) $28,031 Avg Close $176.68 Range $163.95 - $187.46

Q2 2018

Shares 158,474 Value ($000) $28,253 Avg Close $181.90 Range $164.19 - $192.94

Q1 2018

Shares 159,177 Value ($000) $28,806 Avg Close $173.34 Range $160.08 - $183.84

Q4 2017

Shares 162,792 Value ($000) $27,681 Avg Close $165.20 Range $155.57 - $172.00

Q3 2017

Shares 235,432 Value ($000) $37,921 Avg Close $151.09 Range $141.61 - $161.86

Q2 2017

Shares 238,526 Value ($000) $36,781 Avg Close $142.89 Range $134.08 - $158.17

Q1 2017

Shares 241,082 Value ($000) $34,518 Avg Close $149.72 Range $141.72 - $157.74

Q4 2016

Shares 211,659 Value ($000) $31,351 Avg Close $144.92 Range $128.60 - $159.55

Q3 2016

Shares 234,269 Value ($000) $33,009 Avg Close $143.26 Range $137.60 - $149.99

Q2 2016

Shares 240,133 Value ($000) $33,784 Avg Close $134.20 Range $127.66 - $140.69

Q1 2016

Shares 222,440 Value ($000) $29,972 Avg Close $121.32 Range $106.58 - $136.43

Q3 2015

Shares 4,549 Value ($000) $539 Avg Close $124.67 Range $117.06 - $132.23

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	13,202	$5,830	$463.89	$418.31 - $521.09
Q1 2025	28,837	$14,658	$492.90	$457.76 - $535.40
Q4 2024	52,464	$24,862	$506.45	$454.91 - $571.42
Q3 2024	74,547	$36,668	$480.65	$439.08 - $520.41
Q2 2024	65,067	$30,142	$457.10	$396.82 - $493.65
Q1 2024	66,966	$28,927	$401.75	$373.33 - $441.29
Q4 2023	63,085	$27,030	$387.45	$338.58 - $433.19
Q3 2023	61,286	$23,149	$361.55	$337.58 - $386.40
Q2 2023	76,822	$29,305	$339.09	$298.79 - $383.83
Q1 2023	96,029	$30,553	$293.75	$251.49 - $343.85
Q4 2022	99,412	$24,793	$262.94	$228.61 - $287.20
Q3 2022	115,462	$29,727	$270.99	$230.00 - $306.61
Q2 2019	122,264	$19,994	$157.07	$141.46 - $169.39
Q1 2019	61,235	$8,769	$143.49	$136.35 - $153.49
Q3 2018	157,391	$28,031	$176.68	$163.95 - $187.46
Q2 2018	158,474	$28,253	$181.90	$164.19 - $192.94
Q1 2018	159,177	$28,806	$173.34	$160.08 - $183.84
Q4 2017	162,792	$27,681	$165.20	$155.57 - $172.00
Q3 2017	235,432	$37,921	$151.09	$141.61 - $161.86
Q2 2017	238,526	$36,781	$142.89	$134.08 - $158.17
Q1 2017	241,082	$34,518	$149.72	$141.72 - $157.74
Q4 2016	211,659	$31,351	$144.92	$128.60 - $159.55
Q3 2016	234,269	$33,009	$143.26	$137.60 - $149.99
Q2 2016	240,133	$33,784	$134.20	$127.66 - $140.69
Q1 2016	222,440	$29,972	$121.32	$106.58 - $136.43
Q3 2015	4,549	$539	$124.67	$117.06 - $132.23