Willoughby Scott B. 4

What Happened Scott B. Willoughby, Senior Vice President, Chief Legal Officer and Secretary of Sangamo Therapeutics (SGMO), surrendered a total of 14,004 shares to the company solely to satisfy mandatory tax withholding on vested restricted stock units (RSUs). On 2026-02-24 he surrendered 1,650 shares at $0.4725/share (≈ $780) and on 2026-02-25 he surrendered 12,354 shares at $0.47/share (≈ $5,806). These transactions are reported as dispositions (code F) but were not open‑market sales — they are the company withholding shares for taxes.

Key Details

• Transaction dates & prices: 2/24/2026 — 1,650 shares at $0.4725; 2/25/2026 — 12,354 shares at $0.47.
• Total shares surrendered: 14,004; total value withheld ≈ $6,586.
• Transaction code: F — shares surrendered to issuer for mandatory tax withholding (not a discretionary sale).
• Footnotes: Surrenders relate to RSU vesting (grants dated 2/24/2023 and 2/25/2025); vesting is subject to continuous service and potential acceleration per the 2018 Equity Incentive Plan. See F1–F4 for vesting schedule details.
• Shares owned after transaction: not specified in the provided filing.
• Filing timeliness: Form filed 2026-02-26 for transactions on 2/24 and 2/25 — appears to be timely (no late filing noted).

Context These are routine tax-withholding dispositions tied to RSU vesting, not open-market sales that indicate active trading sentiment. Footnotes show portions came from multiple RSU grants (including a 2/24/2023 grant installment and a 2/25/2025 grant with future quarterly vesting installments), so additional shares may vest over time subject to continuous service. Transaction code F simply reflects the company withholding shares to satisfy tax obligations.