Watsco Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -7.23. In total, the insiders bought 135.83K and sold 84.91K WSO-B shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power

(Last 100 transactions)
-7.23
Buy 135.83K shares
Sell 84.91K shares
87% Buy Activity
Weak Positive Correlation
Buy Signal Low Confidence
Jun 01, 2026

Analysis Breakdown:

  • Weakened by a contradictory negative Insider Power Score.
  • Confidence increased due to high data reliability score of 100.
  • Supported by overwhelming buy-side pressure (87% buys).

Historical Insider Trades

Date Type Person Role Amount
Mar 05, 2025
Buy
Stock Option (right to buy)
A-Award
Alvarez Cesar L
Director
Director 1 500
Value: $752.5K
Mar 05, 2025
Buy
Common stock
M-Exempt
Alvarez Cesar L
Director
Director 400
Value: $70.0K
Mar 05, 2025
Buy
Stock Option (right to buy)
M-Exempt
Alvarez Cesar L
Director
Director 2 500
Value: $437.7K
Mar 05, 2025
Buy
Common stock
M-Exempt
Alvarez Cesar L
Director
Director 1 421
Value: $248.8K
Mar 05, 2025
Sell
Common stock
S-Sale
Alvarez Cesar L
Director
Director 679
Value: $338.8K
Mar 05, 2025
Sell
Common stock
S-Sale
Alvarez Cesar L
Director
Director 1 421
Value: $710.5K
Mar 05, 2025
Buy
Stock Option (right to buy)
A-Award
Tapella Gary L
Director
Director 1 500
Value: $752.5K
Mar 01, 2025
Buy
Class B Common stock
A-Award
Nahmad Albert H
Chairman And CEO
CEO / President 10 000
Value: $3.50M
Mar 01, 2025
Buy
Class B Common stock
A-Award
Nahmad Albert H
Chairman And CEO
CEO / President 10 000
Value: $3.50M
Feb 25, 2025
Buy
Common stock
Tapella Gary L
Director
Director 0
Value: $0
Feb 25, 2025
Buy
Stock Option (right to buy)
Tapella Gary L
Director
Director 1 000
Value: $267.5K
Feb 25, 2025
Buy
Common stock
Tapella Gary L
Director
Director 0
Value: $0
Feb 25, 2025
Buy
Stock Option (right to buy)
Tapella Gary L
Director
Director 1 000
Value: $267.5K
Feb 11, 2025
Buy
Class B Common stock
A-Award
Nahmad Aaron J
President
CEO / President 569
Value: $269.6K
Feb 11, 2025
Buy
Class B Common stock
A-Award
Nahmad Aaron J
President
CEO / President 569
Value: $269.6K
Jan 07, 2025
Buy
Class B Common stock
A-Award
Nahmad Aaron J
President
CEO / President 8 698
Value: $4.67M
Jan 07, 2025
Buy
Class B Common stock
A-Award
Nahmad Aaron J
President
CEO / President 10 639
Value: $5.72M
Jan 07, 2025
Buy
Class B Common stock
A-Award
Nahmad Albert H
Chairman And CEO
CEO / President 11 597
Value: $6.23M
Jan 07, 2025
Buy
Class B Common stock
A-Award
Nahmad Albert H
Chairman And CEO
CEO / President 11 597
Value: $6.23M
Jan 07, 2025
Buy
Class B Common stock
A-Award
Nahmad Aaron J
President
CEO / President 10 639
Value: $5.72M
Jan 07, 2025
Buy
Class B Common stock
A-Award
Nahmad Aaron J
President
CEO / President 8 698
Value: $4.67M
Dec 31, 2024
Buy
Common Stock
J-Other
Schimel Valerie
Insider
Other 0
Value: $0
Dec 31, 2024
Buy
Common stock
Menendez Ana M
CFO / Treasurer
C-Suite Officer 0
Value: $0
Dec 31, 2024
Buy
Common stock
Menendez Ana M
CFO / Treasurer
C-Suite Officer 0
Value: $0
Dec 31, 2024
Buy
Common stock
Menendez Ana M
CFO / Treasurer
C-Suite Officer 0
Value: $0

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

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