Vault-13

WATSCO INC WSO

COM · Common Stock · CUSIP 942622200 · ISIN US9426222009

American industrial company

539 institutional holders
33,323,75633.3m shares reported held*
$8.6bnreported value*

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($20.6m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $257.46. Options: 6 managers hold calls ($21.5m notional), 7 hold puts ($12.5m).

Biggest calls

CITADEL ADVISORS LLC — $7.4m28.6k shares
Twin Tree Management, LP — $7.3m28.5k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP — $3.1m12.2k shares
PEAK6 Investments LLC — $2.7m10.6k shares
SIMPLEX TRADING, LLC — $926.0k3.6k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. — $00 shares

Biggest puts

SIMPLEX TRADING, LLC — $3.3m12.9k shares
Twin Tree Management, LP — $2.9m11.3k shares
CITADEL ADVISORS LLC — $2.4m9.3k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP — $1.9m7.4k shares
PEAK6 Investments LLC — $1.6m6.2k shares
D. E. Shaw & Co., Inc. — $335.0k1.3k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. — $00 shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
Capital International Investors 13G · institution -3.4 pts · filed 2026-05-14 10.1% -3.4 pts 3.5m≈ $1.5bn 2026-05-14
FMR LLC 13G · institution -3.3 pts · filed 2026-02-05 5.6% -3.3 pts 2.0m≈ $819.7m 2026-02-05
Capital Research Global Investors 13G · institution new · filed 2026-05-14 5.4% new 1.9m≈ $791.2m 2026-05-14
VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 5.2% new 1.8m≈ $761.6m 2026-04-30
VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 5.0% new 1.8m≈ $731.5m 2026-04-29

Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD CAPITAL MANAGEMENT LLC)

Insider purchases and sales in Q3 2022

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
101Q4 20: 0 buyingQ4 20: 0 sellingQ1 21: 0 buyingQ1 21: 0 sellingQ1 21Q2 21: 0 buyingQ2 21: 0 sellingQ3 21: 0 buyingQ3 21: 0 sellingQ3 21Q4 21: 0 buyingQ4 21: 0 sellingQ1 22: 0 buyingQ1 22: 1 sellingQ1 22Q2 22: 0 buyingQ2 22: 1 sellingQ3 22: 0 buyingQ3 22: 0 sellingQ3 22
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20200—0——
Q1 20210—0——
Q2 20210—0——
Q3 20210—0——
Q4 20210—0——
Q1 20220—1$3.3m—
Q2 20220—1$1.0m—
Q3 20220—0——

None reported in Q3 2022.

Holders, Q3 2022

#ManagerLocationShares Value% of their portfolioChangeShares change
1 BlackRock Inc. 0.03% of their portfolio New York, NY 3,908,0813.9m $1.0bn $1.0bn 0.03% —
2 VANGUARD GROUP INC 0.02% of their portfolio Valley Forge, PA 3,153,5173.2m $811.9m $811.9m 0.02% —
3 BAILLIE GIFFORD & CO 0.57% of their portfolio EDINBURGH, X0 2,165,1222.2m $557.4m $557.4m 0.57% —
4 KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 1.48% of their portfolio LOS ANGELES, CA 1,730,2291.7m $445.5m $445.5m 1.48% —
5 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.12% of their portfolio SAN FRANCISCO, CA 1,281,7591.3m $330.0m $330.0m 0.12% —
6 Capital World Investors 0.06% of their portfolio LOS ANGELES, CA 1,074,8001.1m $276.7m $276.7m 0.06% —
7 FMR LLC 0.03% of their portfolio BOSTON, MA 1,050,9331.1m $270.6m $270.6m 0.03% —
8 STATE STREET CORP 0.02% of their portfolio BOSTON, MA 923,943923.9k $237.9m $237.9m 0.02% —
9 BLAIR WILLIAM & CO/IL 0.83% of their portfolio CHICAGO, IL 699,131699.1k $180.0m $180.0m 0.83% —
10 NEUBERGER BERMAN GROUP LLC 0.18% of their portfolio NEW YORK, NY 686,489686.5k $176.8m $176.8m 0.18% —
11 WELLINGTON MANAGEMENT GROUP LLP 0.04% of their portfolio Boston, MA 683,510683.5k $176.0m $176.0m 0.04% —
12 GEODE CAPITAL MANAGEMENT, LLC 0.02% of their portfolio BOSTON, MA 547,046547.0k $140.8m $140.8m 0.02% —
13 DAVENPORT & Co LLC 1.22% of their portfolio RICHMOND, VA 540,620540.6k $138.9m $138.9m 1.22% —
14 WELLS FARGO & COMPANY/MN 0.05% of their portfolio SAN FRANCISCO, CA 540,094540.1k $139.1m $139.1m 0.05% —
15 Bank of New York Mellon Corp 0.03% of their portfolio NEW YORK, NY 527,779527.8k $135.9m $135.9m 0.03% —
16 Mitsubishi UFJ Trust & Banking Corp 0.34% of their portfolio TOKYO, M0 467,710467.7k $120.4m $120.4m 0.34% —
17 Markel Group Inc. 1.76% of their portfolio Glen Allen, VA 462,250462.2k $119.0m $119.0m 1.76% —
18 RAYMOND JAMES & ASSOCIATES 0.10% of their portfolio ST PETERSBURG, FL 368,127368.1k $94.8m $94.8m 0.10% —
19 BOSTON FINANCIAL MANGEMENT LLC 4.06% of their portfolio BOSTON, MA 362,812362.8k $93.4m $93.4m 4.06% —
20 FIRST TRUST ADVISORS LP 0.11% of their portfolio Wheaton, IL 332,657332.7k $85.6m $85.6m 0.11% —
21 MORGAN STANLEY 0.01% of their portfolio NEW YORK, NY 311,327311.3k $80.2m $80.2m 0.01% —
22 Swedbank AB 0.18% of their portfolio STOCKHOLM, V7 288,200288.2k $74.2m $74.2m 0.18% —
23 Baird Financial Group, Inc. 0.22% of their portfolio MILWAUKEE, WI 287,532287.5k $74.0m $74.0m 0.22% —
24 CALEDONIA INVESTMENTS PLC 12.83% of their portfolio LONDON ENGLAND, X0 268,784268.8k $69.2m $69.2m 12.83% —
25 NORTHERN TRUST CORP 0.02% of their portfolio CHICAGO, IL 264,172264.2k $68.0m $68.0m 0.02% —
26 ANCHOR CAPITAL ADVISORS LLC 1.86% of their portfolio Boston, MA 261,776261.8k $67.4m $67.4m 1.86% —
27 DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio AUSTIN, TX 239,275239.3k $61.6m $61.6m 0.02% —
28 Bahl & Gaynor LLC 0.40% of their portfolio CINCINNATI, OH 233,085233.1k $60.0m $60.0m 0.40% —
29 SCHRODER INVESTMENT MANAGEMENT GROUP 0.09% of their portfolio London, X0 221,553221.6k $57.0m $57.0m 0.09% —
30 Welch & Forbes LLC 1.10% of their portfolio Boston, MA 218,424218.4k $56.2m $56.2m 1.10% —
31 GOLDMAN SACHS GROUP INC 0.02% of their portfolio NEW YORK, NY 216,465216.5k $55.7m $55.7m 0.02% —
32 BANK OF AMERICA CORP /DE/ 0.01% of their portfolio CHARLOTTE, NC 211,797211.8k $54.5m $54.5m 0.01% —
33 NORGES BANK 0.01% of their portfolio OSLO, Q8 206,899206.9k $53.3m $53.3m 0.01% —
34 PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio BALTIMORE, MD 203,952204.0k $52.5m $52.5m 0.01% —
35 Premier Fund Managers Ltd 3.74% of their portfolio GUILDFORD, X0 195,800195.8k $50.1m $50.1m 3.74% —
36 NORDEA INVESTMENT MANAGEMENT AB 0.08% of their portfolio STOCKHOLM, V7 195,730195.7k $50.1m $50.1m 0.08% —
37 DEARBORN PARTNERS LLC 1.97% of their portfolio CHICAGO, IL 173,891173.9k $44.8m $44.8m 1.97% —
38 RENAISSANCE TECHNOLOGIES LLC 0.06% of their portfolio NEW YORK, NY 167,500167.5k $43.1m $43.1m 0.06% —
39 HOWLAND CAPITAL MANAGEMENT LLC 2.62% of their portfolio BOSTON, MA 158,504158.5k $40.8m $40.8m 2.62% —
40 EATON VANCE MANAGEMENT 0.06% of their portfolio BOSTON, MA 156,355156.4k $40.3m $40.3m 0.06% —
41 Motley Fool Asset Management LLC 3.93% of their portfolio ALEXANDRIA, VA 155,147155.1k $39.9m $39.9m 3.93% —
42 VICTORY CAPITAL MANAGEMENT INC 0.05% of their portfolio San Antonio, TX 154,897154.9k $39.9m $39.9m 0.05% —
43 GW&K Investment Management, LLC 0.42% of their portfolio BOSTON, MA 148,069148.1k $38.1m $38.1m 0.42% —
44 MACQUARIE GROUP LTD 0.05% of their portfolio Sydney, NSW 2000, C3 142,433142.4k $36.8m $36.8m 0.05% —
45 Handelsbanken Fonder AB 0.24% of their portfolio STOCKHOLM, V7 141,958142.0k $36.5m $36.5m 0.24% —
46 RIVERBRIDGE PARTNERS LLC 0.54% of their portfolio MINNEAPOLIS, MN 141,500141.5k $36.4m $36.4m 0.54% —
47 VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. 0.49% of their portfolio HOUSTON, TX 132,020132.0k $34.0m $34.0m 0.49% —
48 NATIXIS ADVISORS, LLC 0.14% of their portfolio Boston, MA 130,327130.3k $33.6m $33.6m 0.14% —
49 PRINCIPAL FINANCIAL GROUP INC 0.03% of their portfolio DES MOINES, IA 129,522129.5k $33.3m $33.3m 0.03% —
50 WASHINGTON TRUST Co 1.65% of their portfolio WESTERLY, RI 127,341127.3k $32.8m $32.8m 1.65% —
51 ENVESTNET ASSET MANAGEMENT INC 0.02% of their portfolio Berwyn, PA 123,260123.3k $31.7m $31.7m 0.02% —
52 Invesco Ltd. 0.01% of their portfolio ATLANTA, GA 121,501121.5k $31.3m $31.3m 0.01% —
53 WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.12% of their portfolio CHICAGO, IL 115,462115.5k $29.7m $29.7m 0.12% —
54 RHUMBLINE ADVISERS 0.04% of their portfolio BOSTON, MA 112,199112.2k $28.9m $28.9m 0.04% —
55 Motley Fool Wealth Management, LLC 1.76% of their portfolio ALEXANDRIA, VA 104,632104.6k $26.9m $26.9m 1.76% —
56 ROYAL BANK OF CANADA 0.01% of their portfolio TORONTO, A6 102,422102.4k $26.4m $26.4m 0.01% —
57 CAPITAL ADVISORS INC/OK 0.72% of their portfolio TULSA, OK 96,79596.8k $23.4m $23.4m 0.72% —
58 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.06% of their portfolio Boston, MA 96,00096.0k $24.7m $24.7m 0.06% —
59 AEGON ASSET MANAGEMENT UK Plc 0.47% of their portfolio EDINBURGH, X0 91,03091.0k $23.4m $23.4m 0.47% —
60 Nuveen Asset Management, LLC 0.01% of their portfolio CHICAGO, IL 89,95590.0k $23.2m $23.2m 0.01% —
61 Swiss National Bank 0.01% of their portfolio ZURICH, V8 78,64478.6k $20.2m $20.2m 0.01% —
62 Legal & General Group Plc 0.01% of their portfolio London, X0 78,07778.1k $20.1m $20.1m 0.01% —
63 J.P. Morgan Private Wealth Advisors LLC 0.05% of their portfolio SAN FRANCISCO, CA 75,25675.3k $19.4m $19.4m 0.05% —
64 Conestoga Capital Advisors, LLC 0.38% of their portfolio WAYNE, PA 74,84774.8k $19.3m $19.3m 0.38% —
65 California Public Employees Retirement System 0.02% of their portfolio Sacramento, CA 74,71974.7k $19.2m $19.2m 0.02% —
66 GENEVA CAPITAL MANAGEMENT LLC 0.44% of their portfolio MILWAUKEE, WI 74,12574.1k $19.1m $19.1m 0.44% —
67 Curi Capital, LLC 0.69% of their portfolio CHICAGO, IL 71,58171.6k $18.4m $18.4m 0.69% —
68 Ninety One UK Ltd 0.06% of their portfolio London, X0 70,69570.7k $18.2m $18.2m 0.06% —
69 STIFEL FINANCIAL CORP 0.03% of their portfolio ST. LOUIS, MO 68,64368.6k $17.7m $17.7m 0.03% —
70 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 68,48168.5k $17.6m $17.6m 0.00% —
71 Pembroke Management, LTD 1.82% of their portfolio Montreal, A8 63,57863.6k $16.4m $16.4m 1.82% —
72 ALLIANCEBERNSTEIN L.P. 0.01% of their portfolio NASHVILLE, TN 62,51562.5k $16.1m $16.1m 0.01% —
73 River Road Asset Management, LLC 0.24% of their portfolio LOUISVILLE, KY 61,79161.8k $15.9m $15.9m 0.24% —
74 NEW YORK STATE COMMON RETIREMENT FUND 0.02% of their portfolio ALBANY, NY 60,41360.4k $15.6m $15.6m 0.02% —
75 T. Rowe Price Investment Management, Inc. 0.01% of their portfolio BALTIMORE, MD 58,73058.7k $15.1m $15.1m 0.01% —
76 Baskin Financial Services Inc. 1.77% of their portfolio TORONTO, A6 57,54657.5k $14.8m $14.8m 1.77% —
77 TRUIST FINANCIAL CORP 0.03% of their portfolio CHARLOTTE, NC 57,21657.2k $14.7m $14.7m 0.03% —
78 LaFleur & Godfrey LLC 2.57% of their portfolio GRAND RAPIDS, MI 55,94855.9k $14.4m $14.4m 2.57% —
79 TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 0.17% of their portfolio FRANKFORT, KY 55,52655.5k $14.3m $14.3m 0.17% —
80 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio NEW YORK, NY 55,20755.2k $14.2m $14.2m 0.01% —
81 Handelsinvest Investeringsforvaltning 2.13% of their portfolio HERNING, G7 52,70052.7k $13.6m $13.6m 2.13% —
82 AMERICAN INTERNATIONAL GROUP, INC. 0.10% of their portfolio New York, NY 52,49052.5k $13.5m $13.5m 0.10% —
83 DNB Asset Management AS 0.10% of their portfolio Oslo, Q8 51,79851.8k $13.3m $13.3m 0.10% —
84 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 50,91350.9k $13.1m $13.1m 0.00% —
85 Fenimore Asset Management Inc 0.36% of their portfolio Cobleskill, NY 47,99848.0k $12.4m $12.4m 0.36% —
86 Wilkinson Global Asset Management LLC 1.08% of their portfolio New York, NY 46,67146.7k $12.0m $12.0m 1.08% —
87 STATE OF WISCONSIN INVESTMENT BOARD 0.04% of their portfolio MADISON, WI 46,64746.6k $12.0m $12.0m 0.04% —
88 OLD NATIONAL BANCORP /IN/ 0.20% of their portfolio EVANSVILLE, IN 46,40646.4k $11.9m $11.9m 0.20% —
89 LOS ANGELES CAPITAL MANAGEMENT LLC 0.06% of their portfolio LOS ANGELES, CA 46,31546.3k $11.9m $11.9m 0.06% —
90 AE Wealth Management LLC 0.09% of their portfolio TOPEKA, KS 46,28046.3k $11.9m $11.9m 0.09% —
91 CAPTRUST FINANCIAL ADVISORS 0.07% of their portfolio RALEIGH, NC 44,13644.1k $11.4m $11.4m 0.07% —
92 Retirement Systems of Alabama 0.05% of their portfolio MONTGOMERY, AL 43,47343.5k $11.2m $11.2m 0.05% —
93 GRACE & WHITE INC /NY 2.38% of their portfolio NY, NY 42,92542.9k $11.1m $11.1m 2.38% —
94 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.02% of their portfolio WEST SACRAMENTO, CA 42,90742.9k $11.0m $11.0m 0.02% —
95 NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.03% of their portfolio ALBANY, NY 41,11141.1k $10.6m $10.6m 0.03% —
96 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.00% of their portfolio Boston, MA 40,85040.9k $10.5m $10.5m 0.00% —
97 CITADEL ADVISORS LLC 0.01% of their portfolio MIAMI, FL 40,17540.2k $10.3m $10.3m 0.01% —
98 SOUTHERNSUN ASSET MANAGEMENT, LLC 1.27% of their portfolio Memphis, TN 39,96440.0k $10.3m $10.3m 1.27% —
99 Thrivent Financial for Lutherans 0.03% of their portfolio Minneapolis, MN 39,75239.8k $10.2m $10.2m 0.03% —
100 CITIGROUP INC 0.01% of their portfolio NEW YORK, NY 39,30239.3k $10.1m $10.1m 0.01% —