As of the latest Form 4 filed Jul 7, 2026.
What Solid Biosciences LLC insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 22 most recent filings for SLDB.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-07-07 | 2026-07-02 | SMITH IAN F Director | MExercise | +3.44K | — | — | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-04 | Howton David T Chief Operating Officer | SSale | −18.9K | $6.44 | $122K | Yes (planned) | Form 4 ↗ |
| 2026-02-06 | 2026-02-04 | Cumbo Alexander President and CEO | SSale | −48.9K | $6.44 | $315K | Yes (planned) | Form 4 ↗ |
| 2026-02-06 | 2026-02-04 | Ganot Ilan Director | SSale | −7.21K | $6.44 | $46.4K | Yes (planned) | Form 4 ↗ |
| 2026-02-06 | 2026-02-04 | Tan Kevin CFO & Treasurer | SSale | −14.8K | $6.44 | $95.2K | Yes (planned) | Form 4 ↗ |
| 2026-02-06 | 2026-02-04 | Brooks Gabriel Chief Medical Officer | SSale | −12.6K | $6.44 | $81.3K | Yes (planned) | Form 4 ↗ |
| 2026-02-06 | 2026-02-04 | Hanrahan Jessie Chief Regulatory Officer | SSale | −12.3K | $6.44 | $79.5K | Yes (planned) | Form 4 ↗ |
| 2026-02-06 | 2026-02-04 | Herzich Paul Chief Technology Officer | SSale | −10.9K | $6.44 | $70.2K | Yes (planned) | Form 4 ↗ |
| 2026-01-30 | 2026-01-28 | Ganot Ilan Director | SSale | −191.00 | $6.59 | $1.26K | Yes (planned) | Form 4 ↗ |
| 2026-01-30 | 2026-01-27 | Ganot Ilan, Director | MExercise | +3.88K | — | — | Yes (planned) | Form 4 ↗ |
| 2026-01-30 | 2026-01-27 | Ganot Ilan, Director | MExercise | +389.00 | — | — | Yes (planned) | Form 4 ↗ |
| 2026-01-13 | 2026-01-13 | Tan Kevin CFO & Treasurer | SSale | −5.70K | $5.27 | $30.1K | Yes (planned) | Form 4 ↗ |
| 2026-01-13 | 2026-01-09 | Tan Kevin, CFO & Treasurer | MExercise | +11.3K | — | — | Yes (planned) | Form 4 ↗ |
| 2026-01-07 | 2026-01-06 | SMITH IAN F Director | MExercise | +4.57K | — | — | No | Form 4 ↗ |
| 2025-12-04 | 2025-12-03 | Howton David T Chief Operating Officer | SSale | −4.93K | $5.11 | $25.2K | Yes (planned) | Form 4 ↗ |
| 2025-12-04 | 2025-12-03 | Cumbo Alexander President and CEO | SSale | −10.8K | $5.11 | $55.2K | Yes (planned) | Form 4 ↗ |
| 2025-12-04 | 2025-12-03 | Hanrahan Jessie Chief Regulatory Officer | SSale | −4.48K | $5.11 | $22.9K | Yes (planned) | Form 4 ↗ |
| 2025-12-04 | 2025-12-03 | Herzich Paul Chief Technology Officer | SSale | −2.70K | $5.11 | $13.8K | Yes (planned) | Form 4 ↗ |
| 2025-12-04 | 2025-12-02 | Howton David T Chief Operating Officer | MExercise | +13.1K | — | — | Yes (planned) | Form 4 ↗ |
| 2025-12-04 | 2025-12-02 | Cumbo Alexander President and CEO | MExercise | +28.6K | — | — | Yes (planned) | Form 4 ↗ |
| 2025-12-04 | 2025-12-02 | Hanrahan Jessie Chief Regulatory Officer | MExercise | +11.9K | — | — | Yes (planned) | Form 4 ↗ |
| 2025-12-04 | 2025-12-02 | Herzich Paul Chief Technology Officer | MExercise | +7.24K | — | — | Yes (planned) | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also SLDB’s full analysis or the market-wide insider trading feed. The tabs above jump to SLDB’s other SEC data.
Source: SEC Form 4 filings for SLDB, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.