Albert H. Nahmad - 11 Mar 2026 Form 4 Insider Report for WATSCO INC (WSO)

Reporting relationship: Chairman and CEO, Director
Issuer ticker: WSO
Reported as of: 11 Mar 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 13 Mar 2026, 16:17:06 UTC
Prior SEC filing: 16 Jan 2026
Source filing: View source filing
Reporting owner signature: /s/ Albert H. Nahmad

Key filing fact

Albert H. Nahmad filed Form 4 for WATSCO INC (WSO) on 13 Mar 2026.

Key facts

This page summarizes Albert H. Nahmad's Form 4 filing for WATSCO INC (WSO).
1 reported transaction and 5 derivative rows are listed below.
Accepted by SEC: 13 Mar 2026, 16:17.

Change

Previous filing in this sequence was filed on 16 Jan 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001243203 Primary reporting owner

NAHMAD ALBERT H

Relationship: Chairman and CEO, Director
Address: 2665 S. BAYSHORE DRIVE, SUITE 901, MIAMI
Signature: /s/ Albert H. Nahmad
Signature date: 13 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

WSO transaction

Common stock

Other

Transaction value
Shares: +25
Change %: +37%
Price: $336.95^*
Shares after: 92
Date: 11 Mar 2026
Ownership: See footnote
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

WSO holding Derivative

Class B Common stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 440,000
Date: 11 Mar 2026
Ownership: See footnote
Underlying class: Class B Common stock
Underlying amount: 440,000
Exercise price
Footnotes: F2, F3

WSO holding Derivative

Class B Common stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 902,006
Date: 11 Mar 2026
Ownership: See footnote
Underlying class: Class B Common stock
Underlying amount: 902,006
Exercise price
Footnotes: F2, F4

WSO holding Derivative

Class B Common stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 160,385
Date: 11 Mar 2026
Ownership: Direct
Underlying class: Class B Common stock
Underlying amount: 160,385
Exercise price
Footnotes: F2, F5

WSO holding Derivative

Class B Common stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 2,577,411
Date: 11 Mar 2026
Ownership: See footnote
Underlying class: Class B Common stock
Underlying amount: 2,577,411
Exercise price
Footnotes: F2, F6, F7

WSO holding Derivative

Class B Common stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 206,976
Date: 11 Mar 2026
Ownership: See footnote
Underlying class: Class B Common stock
Underlying amount: 206,976
Exercise price
Footnotes: F2, F8

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 8 footnotes

Footnote F1

Ownership in Watsco, Inc. Profit Sharing Retirement Plan and Trust.

Footnote F2

The Class B Common Stock is convertible into Common Stock at any time on a one-for-one basis and has no expiration date.

Footnote F3

Reflects shares held by Albert Henry Capital L.P., a limited partnership over which Mr. Nahmad maintains effective control, which are subject to vesting restrictions.

Footnote F4

Reflects shares held by My Pal Al, L.P., a limited partnership over which Mr. Nahmad maintains effective control, which are subject to vesting restrictions.

Footnote F5

Reflects shares held by Gramps G-MA, L.P, a limited partnership over which Mr. Nahmad maintains effective control, which are subject to vesting restrictions.

Footnote F6

Includes 9,630 shares acquired on January 30, 2026 under the Watsco Inc. Dividend Reinvestment Plan.

Footnote F7

Reflects shares held by various trusts over which Mr. Nahmad maintains effective control.

Footnote F8

Reflects shares owned by Colon Boy LP, a limited partnership, over which Mr. Nahmad maintains effective control.

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