Dubois-Stringfellow Nathalie 4
4 · SANGAMO THERAPEUTICS, INC · Filed Jan 26, 2026
Research Summary
AI-generated summary of this filing
Sangamo (SGMO) SVP Nathalie Dubois-Stringfellow Surrenders 36,676 Shares for Taxes
What Happened
- Nathalie Dubois-Stringfellow, SVP & Chief Development Officer at Sangamo Therapeutics (SGMO), had 52,387 RSU shares vest on January 22, 2026 and surrendered 36,676 of those shares to the company to satisfy mandatory tax withholding. The filing reports the withholding at $0.40 per share (company closing price $0.3985), a disposition valued at approximately $14,615.
- This was a tax-withholding disposition (transaction code F), not an open-market sale or discretionary trade by the insider.
Key Details
- Transaction date: January 22, 2026; filing date: January 26, 2026 (filed within the required reporting window).
- Withheld/disposed: 36,676 shares at ~$0.3985–$0.40 per share; value ≈ $14,615.
- Vesting details: 52,387 shares vested on Jan 22, 2026; after withholding, the net shares delivered from that vesting installment were 15,711 (52,387 − 36,676).
- Other holdings noted in the filing: additional RSU grants that vest through 2026 and 2028, plus 10,000 shares acquired via the 2020 Employee Stock Purchase Plan (5,000 on May 30, 2025 and 5,000 on Nov 28, 2025).
- Footnote clarification: the withheld shares were surrendered solely for mandatory tax withholding under Sangamo’s 2018 Equity Incentive Plan and are reported as a disposition to the issuer for SEC purposes.
Context
- This transaction is routine tax withholding on vested RSUs and should not be read as a discretionary sale or signal of sentiment. It reflects compensation vesting mechanics (a common insider filing type) rather than a market trade.
Insider Transaction Report
Form 4
Dubois-Stringfellow Nathalie
SVP-CHIEF DEVELOPMENT OFFICER
Transactions
- Tax Payment
Common Stock
[F1][F2][F3]2026-01-22$0.40/sh−36,676$14,615→ 693,128 total
Footnotes (3)
- [F1]Represents shares underlying the portion of a restricted stock unit ("RSU") grant that vested on January 22, 2026, which were surrendered by the Reporting Person solely for mandatory tax withholding purposes using the Issuer's closing stock price on January 22, 2026 of $0.3985/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.
- [F2]Includes: (a) 52,387 shares from the January 22, 2026 vesting installment of the Reporting Person's January 22, 2024 RSU grant, (b) 5,010 shares subject to Reporting Person's February 24, 2023 RSU grant that will vest in successive equal quarterly installments through February 24, 2026 and (c) 120,000 shares subject to Reporting Person's February 25, 2025 RSU grant that will vest as to one-fourth (1/4) of the shares subject to the grant 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.
- [F3]Includes 5,000 shares acquired on May 30, 2025 and 5,000 shares acquired on November 28, 2025 under the Issuer's 2020 Employee Stock Purchase Plan.
Signature
/s/ Scott Willoughby, Attorney-in-Fact|2026-01-26