Sangamo insider surrenders 1,792 RSU shares; retains 766,089 shares
Rhea-AI Filing Summary
Sangamo Therapeutics insider Nathalie Dubois-Stringfellow reported a small disposition tied to RSU tax withholding and continues to hold a substantial equity stake. The Form 4 shows that on 08/24/2025 she surrendered 1,792 shares to the company for mandatory tax withholding at a price of $0.5863 per share related to vested restricted stock units under the 2018 Equity Incentive Plan.
After the withholding disposition, the reporting person beneficially owns 766,089 shares. The filing details the schedule of outstanding RSU grants and future vesting: remaining installments from a 2023 grant, a 2024 grant vesting through January 22, 2026, and a 2025 grant with a first vesting on February 25, 2026, all subject to continuous service and plan acceleration provisions.
Positive
- Reporting person retains substantial ownership of 766,089 shares, indicating continued alignment with shareholders
- Disposition was tax withholding only, not an open-market sale, reflecting administrative processing of vested RSUs
Negative
- Small reduction of reported shares due to surrender of 1,792 shares for mandatory tax withholding
Insights
TL;DR: A routine RSU vesting tax-withholding disposition; reporting person still holds a sizable stake, no open-market sale observed.
The transaction code indicates a mandatory tax withholding related to RSU vesting rather than an open-market sale, which reduces reported shares by 1,792 at $0.5863 per share. The remaining beneficial ownership of 766,089 shares reflects vested and unvested RSUs from multiple grants with scheduled future vesting through 2026. This is a routine administrative disposition that does not change the executives underlying long-term equity exposure to SGMO.
TL;DR: Filing documents expected tax-withholding mechanics on vested RSUs and confirms ongoing service-based vesting schedules.
The Form 4 clearly describes that withheld shares were surrendered solely for tax obligations under the companys Amended and Restated 2018 Equity Incentive Plan. The disclosure of vesting schedules and acceleration provisions provides transparency on future potential dilution and insider alignment with shareholder interests. No sale or transfer to third parties is reported.
Insider Trade Summary
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Tax Withholding | Common Stock | 1,792 | $0.5863 | $1K |
Footnotes (1)
- Represents shares underlying the portion of a restricted stock unit ("RSU") grant that vested on August 24, 2025, which were surrendered by the Reporting Person solely for mandatory tax withholding purposes using the Issuer's closing stock price on August 22, 2025 of $0.5863/share, pursuant to the terms of the Issuer's Amended and Restated 2018 Equity Incentive Plan, as amended (the "2018 EIP"). This required tax withholding transaction is deemed to constitute a disposition of these shares to the Issuer for reporting purposes and does not represent a discretionary trade by the Reporting Person in the open market or otherwise. Includes: (a) 3,218 shares resulting from the August 24, 2025 vesting installment of the Reporting Person's February 24, 2023 RSU grant, and the remaining 10,020 shares will vest in successive equal quarterly installments through February 24, 2026, (b) 178,125 shares subject to the Reporting Person's January 22, 2024 RSU grant that will vest in successive equal quarterly installments through January 22, 2026 and (c) 120,000 shares subject to Reporting Person's February 25, 2025 RSU grant that will vest as to one-quarter (1/4) of the shares on February 25, 2026, and the remainder of the shares will vest in 8 successive equal quarterly installments thereafter. The vesting of all such RSU grants is subject to the Reporting Person's Continuous Service (as defined in the 2018 EIP) through each such date and subject to acceleration as provided in the 2018 EIP.
