NYSE:WMS

Advanced Drainage Systems Stock Insider Trading

Industrials > Construction

Buy WMS

*Your capital is at risk

$140.89

-3.35 (-2.32%)

At Close: Nov 17, 2025

Advanced Drainage Systems Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -77.47. In total, the insiders bought 290.7K and sold 1.2B WMS 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)	-77.47
● Buy	290.7K shares
● Sell	1.2B shares
52% Buy Activity Weak Negative Correlation
Sell Signal Medium Confidence Nov 12, 2025 Analysis Breakdown: Strongly supported by a very low Insider Power Score of -77.47. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
Nov 12, 2025 Sell	Common Stock S-Sale	Makowski Tim A See Remarks	Officer	101 Value: $15.1K
Nov 12, 2025 Buy	Option to Purchase Common Stock M-Exempt	Barbour D. Scott See Remarks	Officer	80 030 Value: $2.06M
Nov 12, 2025 Sell	Common Stock S-Sale	Barbour D. Scott See Remarks	Officer	2 030 Value: $305.8K
Nov 12, 2025 Sell	Common Stock S-Sale	Waun Thomas J. Sr. EVP, International	Officer	1 000 Value: $150.0K
Nov 12, 2025 Buy	Common Stock M-Exempt	Barbour D. Scott See Remarks	Officer	80 030 Value: $2.06M
Nov 12, 2025 Sell	Common Stock S-Sale	Barbour D. Scott See Remarks	Officer	4 538 Value: $671.7K
Nov 12, 2025 Sell	Common Stock S-Sale	Barbour D. Scott See Remarks	Officer	73 462 Value: $10.9M
Nov 12, 2025 Sell	Common Stock S-Sale	Makowski Tim A See Remarks	Officer	4 800 Value: $716.2K
Nov 11, 2025 Sell	Common Stock S-Sale	Waun Thomas J. Sr. EVP, International	Officer	1 272 Value: $188.7K
Nov 10, 2025 Sell	Common Stock G-Gift	Eversole Robert M Director	Director	4 100 Value: $0
Nov 10, 2025 Sell	Common Stock G-Gift	Eversole Robert M Director	Director	4 100 Value: $0
Nov 05, 2025 Buy	Option to Purchase Common Stock	Coyle Patrick M. Jr See Remarks	Officer	1 946 Value: $232.2K
Nov 05, 2025 Buy	Option to Purchase Common Stock	Coyle Patrick M. Jr See Remarks	Officer	1 309 Value: $232.2K
Nov 05, 2025 Buy	Option to Purchase Common Stock	Coyle Patrick M. Jr See Remarks	Officer	495 Value: $49.1K
Nov 05, 2025 Buy	Common Stock	Coyle Patrick M. Jr See Remarks	Officer	0 Value: $0
Nov 05, 2025 Buy	Common Stock	Coyle Patrick M. Jr See Remarks	Officer	0 Value: $0
Nov 05, 2025 Buy	Option to Purchase Common Stock	Coyle Patrick M. Jr See Remarks	Officer	2 486 Value: $239.9K
Nov 05, 2025 Buy	Option to Purchase Common Stock	Coyle Patrick M. Jr See Remarks	Officer	367 Value: $52.8K
Jul 17, 2025 Buy	Common Stock A-Award	Seetharam Anil Director	Director	1 967 Value: $221.4K
Jul 17, 2025 Buy	Common Stock A-Award	Fischer Alexander R Director	Director	1 130 Value: $127.2K
Jul 17, 2025 Buy	Common Stock A-Award	Gast Kelly S. Director	Director	1 967 Value: $221.4K
Jul 17, 2025 Buy	Common Stock A-Award	Fratto Tanya D Director	Director	1 130 Value: $127.2K
Jul 17, 2025 Buy	Common Stock A-Award	Haney Mark Director	Director	1 130 Value: $127.2K
Jul 17, 2025 Buy	Common Stock A-Award	Kissam Luther C Iv Director	Director	1 130 Value: $127.2K
Jul 17, 2025 Buy	Common Stock A-Award	Coleman Michael B. Director	Director	1 130 Value: $127.2K

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

ABOUT ADVANCED DRAINAGE SYSTEMS INC

Advanced Drainage Systems, Inc. designs, manufactures, and markets thermoplastic corrugated pipes and related water management products, and drainage solutions for use in the underground construction and infrastructure marketplace in the United States, Canada, Mexico, and internationally. The company operates through Pipe, International, Infiltrator, and Allied Products & Other segments. It offers single, double, and triple wall corrugated polypr...

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