🕵️ Solid Biosciences Inc. ($SLDB)
SEC insider & ownership activity, last 12 months · CIK 1707502 · every row links its SEC filing
Over the last 12 months insiders sold $2.7M with no open-market buying against it. Cumbo Alexander sold $984K through a 10b5-1 trading plan in 4 lots (Dec–Feb). Joseph Edelman trimmed 15.6% → 12.9%; Perceptive Advisors LLC trimmed 15.6% → 12.9%. No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 7 sellers, $2.7M (29 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Cumbo Alexander | 0 | – | 4 | $984K | Feb 18, 2026 |
| David T. Howton | 0 | – | 4 | $434K | Feb 18, 2026 |
| Tan Kevin | 0 | – | 4 | $330K | Feb 18, 2026 |
| Hanrahan Jessie | 0 | – | 4 | $297K | Feb 18, 2026 |
| Brooks Gabriel | 0 | – | 4 | $281K | Feb 18, 2026 |
| Herzich Paul | 0 | – | 4 | $274K | Feb 18, 2026 |
| Ganot Ilan | 0 | – | 5 | $82K | Feb 18, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Joseph Edelman | 12.9% | 13D | Mar 9, 2026 | filing ↗ | |
| Perceptive Advisors LLC | 12.9% | 13D | Mar 9, 2026 | filing ↗ | |
| Perceptive Life Sciences Master Fund, Ltd. | 12.8% | 13D | Mar 9, 2026 | filing ↗ | |
| RA Capital Management, L.P. | 11.9% | 13D | Jun 22, 2026 | filing ↗ | |
| Peter Kolchinsky | 11.9% | 13D | Jun 22, 2026 | filing ↗ | |
| Rajeev Shah | 11.9% | 13D | Jun 22, 2026 | filing ↗ | |
| RA Capital Healthcare Fund, L.P. | 11.8% | 13D | Jun 22, 2026 | filing ↗ | |
| Raymond Debbane | 10.0% | 13G | May 5, 2026 | filing ↗ | |
| BCLS II Investco, LP | 8.8% | 13D | Mar 6, 2026 | filing ↗ | |
| Invus Public Equities, L.P. | 8.7% | 13G | May 5, 2026 | filing ↗ | |
| Invus Public Equities Advisors, LLC | 8.7% | 13G | May 5, 2026 | filing ↗ | |
| Invus Global Management, LLC | 8.7% | 13G | May 5, 2026 | filing ↗ | |
| Siren, L.L.C. | 8.7% | 13G | May 5, 2026 | filing ↗ | |
| Commodore Capital LP | 7.6% | 13G | Feb 25, 2025 | filing ↗ | |
| Vestal Point Capital, LP | 7.5% | 13G | Feb 17, 2026 | filing ↗ | |
| Ryan Wilder | 7.5% | 13G | Feb 17, 2026 | filing ↗ | |
| BAIN Capital Life Sciences Opportunities IV, L.P. | 5.4% | 13D | Mar 6, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Brooks Gabriel | $32K | Feb 18, 2026 | filing ↗ |
| Cumbo Alexander | $97K | Feb 18, 2026 | filing ↗ |
| Hanrahan Jessie | $24K | Feb 18, 2026 | filing ↗ |
| Herzich Paul | $21K | Feb 18, 2026 | filing ↗ |
| Ganot Ilan | $16K | Feb 18, 2026 | filing ↗ |
| David T. Howton | $43K | Feb 18, 2026 | filing ↗ |
| Tan Kevin | $31K | Feb 18, 2026 | filing ↗ |
| Tan Kevin | $95K | Feb 4, 2026 | filing ↗ |
| Herzich Paul | $70K | Feb 4, 2026 | filing ↗ |
| Ganot Ilan | $46K | Feb 4, 2026 | filing ↗ |
| Cumbo Alexander | $315K | Feb 4, 2026 | filing ↗ |
| David T. Howton | $122K | Feb 4, 2026 | filing ↗ |
| Hanrahan Jessie | $80K | Feb 4, 2026 | filing ↗ |
| Brooks Gabriel | $81K | Feb 4, 2026 | filing ↗ |
| Hanrahan Jessie | $171K | Feb 2, 2026 | filing ↗ |
| Brooks Gabriel | $182K | Feb 2, 2026 | filing ↗ |
| Tan Kevin | $173K | Feb 2, 2026 | filing ↗ |
| Cumbo Alexander | $517K | Feb 2, 2026 | filing ↗ |
| David T. Howton | $243K | Feb 2, 2026 | filing ↗ |
| Herzich Paul | $169K | Feb 2, 2026 | filing ↗ |
| Tan Kevin | $30K | Jan 13, 2026 | filing ↗ |
| Cumbo Alexander | $55K | Dec 3, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Shareholder vote (5.07) | Jun 10, 2026 | filing ↗ |
| Officer/director changes (5.02) | Apr 10, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 11, 2026 | filing ↗ |
| Other events (8.01) | Mar 11, 2026 | filing ↗ |
| Material agreement (1.01) | Mar 6, 2026 | filing ↗ |
| Earnings (2.02) | Mar 6, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Mar 6, 2026 | filing ↗ |
| Other events (8.01) | Mar 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 6, 2026 | filing ↗ |
| Earnings (2.02) | Nov 3, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 3, 2025 | filing ↗ |
| Other events (8.01) | Nov 3, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 3, 2025 | filing ↗ |