Updated Jul 16, 2026 · Last SEC filing 2026-07-07
Solid Biosciences Inc. (SLDB) has filed 16 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-07. 1 Form 8-K material event filings were reported by SLDB in the last 90 days. InsiderAlpha tracks every SLDB SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SIC classification | Biological Products, (No Diagnostic Substances) (SIC 2836) |
|---|---|
| SEC CIK | 0001707502 |
| Form 4 filings (90d) | 16 |
|---|---|
| Form 8-K filings (90d) | 1 |
| Latest Form 4 filing | 2026-07-07 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| SMITH IAN F | Insider | M — Option exercise | 3.4K | — | — | SEC | |
| SMITH IAN F | Insider | M — Option exercise | 3.4K | — | — | SEC | |
| Howton David T | Chief Operating Officer | S — Open-market sale | 7.5K | $5.82 | $43K | SEC | |
| Herzich Paul | Chief Technology Officer | S — Open-market sale | 3.6K | $5.82 | $21K | SEC | |
| Tan Kevin | CFO & Treasurer | S — Open-market sale | 5.4K | $5.82 | $31K | SEC | |
| Hanrahan Jessie | Chief Regulatory Officer | S — Open-market sale | 4.1K | $5.82 | $24K | SEC | |
| Ganot Ilan | Insider | S — Open-market sale | 2.7K | $5.82 | $15K | SEC | |
| Brooks Gabriel | Chief Medical Officer | S — Open-market sale | 0 | $5.82 | — | SEC | |
| Cumbo Alexander | President and CEO | S — Open-market sale | 16.6K | $5.82 | $97K | SEC | |
| Tan Kevin | CFO & Treasurer | M — Option exercise | 10.6K | — | — | SEC | |
| Howton David T | Chief Operating Officer | M — Option exercise | 14.7K | — | — | SEC | |
| Ganot Ilan | Insider | M — Option exercise | 4.9K | — | — | SEC | |
| Herzich Paul | Chief Technology Officer | M — Option exercise | 7.2K | — | — | SEC | |
| Hanrahan Jessie | Chief Regulatory Officer | M — Option exercise | 8.1K | — | — | SEC | |
| Cumbo Alexander | President and CEO | M — Option exercise | 30.0K | — | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Solid Biosciences Inc. (SLDB). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| SMITH IAN F | 3 | — |
| Howton David T | 1 | — |
| Nagendran Sukumar | 1 | — |
| Cumbo Alexander | 1 | — |
| PERCEPTIVE ADVISORS LLC | 1 | — |
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in SLDB insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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