Form 4: Advanced Drainage Systems Executive Stock Transaction

Executive Vice President Bret Martz disposed of 114 shares of Advanced Drainage Systems common stock to satisfy tax obligations.

Summary

• Bret Martz, Executive Vice President of Sales at Advanced Drainage Systems, Inc. (WMS), reported the disposal of 114 shares of common stock.
• The transaction occurred on May 19, 2026, at a price of $131.59 per share.
• The disposal was executed to satisfy tax withholding obligations related to the vesting of restricted stock units.
• Following this transaction, the reporting person maintains a direct beneficial ownership of 1,837 shares.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event, as it is a mandatory administrative transaction related to tax compliance rather than a strategic market move.

Positives

• The transaction was a routine administrative action related to tax withholding upon the vesting of equity compensation, rather than a discretionary market sale.

Negatives

• The transaction represents a reduction in the executive's direct equity stake in the company.

Risks

• None identified; this is a standard regulatory disclosure for executive compensation tax compliance.

Future Outlook

Not applicable; this is a retrospective disclosure of a completed transaction.

Management Comments

• The filing notes the transaction was made to satisfy tax obligations in connection with the vesting of restricted common stock.

Industry Context

StockSavvy.ai notes that routine tax-related share withholding is a standard practice for corporate executives and does not typically signal a change in management sentiment regarding company performance.

Comparison to Industry Standards

• The filing follows standard SEC Section 16(a) reporting requirements for executive equity transactions.
• The practice of withholding shares to cover tax liabilities is consistent with common corporate governance policies among S&P 400 and similar mid-cap industrial companies.

Stakeholder Impact

• Minimal impact on shareholders as the transaction was a non-discretionary tax withholding event.

Next Steps

• No further actions required by the reporting person regarding this specific transaction.

Key Dates

Keywords

Advanced Drainage Systems, WMS, Form 4, Insider Trading, Executive Compensation, Stock Vesting