Updated Jul 16, 2026
Dubois-Stringfellow Nathalie has filed 2 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $89K.

Nathalie Dubois-Stringfellow is the Senior Vice President and Chief Development Officer at Sangamo Therapeutics, Inc., a company focused on genomic medicine. She has been involved in the development of innovative therapies for serious neurological diseases.
| Role | Insider |
|---|---|
| Notability | 30/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-27 | SGMO | SANGAMO THERAPEUTICS, INC | F — Tax withholding / forfeiture | 4.0K | $0.17 | $703 |
| 2026-04-23 | SGMO | SANGAMO THERAPEUTICS, INC | S — Open-market sale | 345.9K | $0.26 | $89K |
| 2026-02-27 | SGMO | SANGAMO THERAPEUTICS, INC | F — Tax withholding / forfeiture | 12.4K | $0.47 | $6K |
| 2026-02-27 | SGMO | SANGAMO THERAPEUTICS, INC | F — Tax withholding / forfeiture | 2.1K | $0.47 | $975 |
| 2026-01-26 | SGMO | SANGAMO THERAPEUTICS, INC | F — Tax withholding / forfeiture | 36.7K | $0.40 | $15K |
| 2025-08-24 | SGMO | SANGAMO THERAPEUTICS, INC | F — Tax withholding / forfeiture | 1.8K | $0.59 | $1K |
| 2025-07-22 | SGMO | SANGAMO THERAPEUTICS, INC | F — Tax withholding / forfeiture | 31.9K | $0.48 | $15K |
| 2025-05-24 | SGMO | SANGAMO THERAPEUTICS, INC | F — Tax withholding / forfeiture | 1.8K | $0.47 | $848 |
| 2025-04-22 | SGMO | SANGAMO THERAPEUTICS, INC | F — Tax withholding / forfeiture | 31.9K | $0.78 | $25K |
| 2024-11-26 | SGMO | SANGAMO THERAPEUTICS, INC | F — Tax withholding / forfeiture | 1.5K | $1.94 | $3K |
| 2024-11-26 | SGMO | SANGAMO THERAPEUTICS, INC | F — Tax withholding / forfeiture | 1.8K | $1.88 | $3K |
Nathalie Dubois-Stringfellow is the Senior Vice President and Chief Development Officer at Sangamo Therapeutics, Inc., a company focused on genomic medicine. She has been involved in the development of innovative therapies for serious neurological diseases.…
2 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 1 open-market sales ($89K) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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