Form 4: Aspen Aerogels CAO Files Planned RSU Tax Withholding
Insider Transaction Report
Aspen Aerogels' Chief Accounting Officer, Santhosh Daniel, reported a future planned disposition of 986 common shares for tax withholding related to RSU vesting.
Summary
- Santhosh Daniel, Chief Accounting Officer of Aspen Aerogels, Inc. (ASPN), reported a transaction involving the company's common stock.
- On March 5, 2026, 986 shares of common stock were disposed of.
- This disposition was a 'F' transaction code, indicating shares withheld by the company to satisfy minimum statutory tax withholding requirements upon the vesting of Restricted Stock Units (RSUs).
- The shares were valued at $3.27 per share for the purpose of this transaction.
- Following this transaction, Daniel Santhosh P beneficially owns 15,330 shares, comprising 5,593 shares of Common Stock and 9,737 RSUs.
- The transaction was made pursuant to a Rule 10b5-1(c) plan, as indicated by the checked box on the filing.
Sentiment
Score: 5
Explanation: StockSavvy.ai views this as a neutral event, representing a routine compensation-related tax withholding for an executive, which is a standard practice.
Positives
- The transaction is a routine tax withholding, indicating RSU vesting for an executive, which is a form of compensation.
- The transaction was pre-planned under a Rule 10b5-1(c) plan, demonstrating structured compliance with insider trading rules.
Negatives
- A disposition of 986 shares, even for tax purposes, reduces the direct equity holdings of the executive.
Industry Context
StockSavvy.ai notes that insider transactions, particularly those related to RSU vesting and tax withholdings, are common occurrences for executives in publicly traded companies and generally do not reflect broader industry trends.
Corporate Governance
| Change Type | Description | Effective Date | Impact Assessment |
|---|---|---|---|
| Power of Attorney Grant | Santhosh Daniel granted a Power of Attorney to Glenn Deegan (Chief Administrative Officer, General Counsel, Corporate Secretary) and Andrew Lauzon (Senior Director, Total Reward) to execute and file Forms 3, 4, and 5 on his behalf. | 2025-09-22 | This streamlines the process for insider trading compliance filings for the Chief Accounting Officer, ensuring timely and accurate submissions to the SEC. |
Stakeholder Impact
- Shareholders: Minimal direct impact as this is a routine, pre-planned tax withholding transaction for an executive's compensation.
- Employees: No direct impact beyond the executive involved.
Key Dates
| Date | Description |
|---|---|
| 2025-09-22 | Date Santhosh Daniel executed the Power of Attorney for Section 16 filings. |
| 2026-03-05 | Date of the reported transaction (disposition of shares for tax withholding). |
| 2026-03-06 | Date the Form 4 was signed by the attorney-in-fact. |
Keywords
Aspen Aerogels, ASPN, Form 4, Insider Transaction, Santhosh Daniel, Chief Accounting Officer, Restricted Stock Units, RSU Vesting, Tax Withholding, Rule 10b5-1
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