← United States · Coverage record
US · SEC FORM 4
Solid Biosciences Inc.
SLDB · Nasdaq · CIK 0001707502 · Healthcare · Biotechnology
INSIDER SIGNAL
0 qualifying P purchase groups
in the current 180-day scoring window
2 Form 4 transaction lines observed in the same window
0 sales · 2 option, withholding, award, gift or other lines
WHY NO ACTIVE SIGNAL?
Score anatomy
No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.
Why is there no score?
- No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
- Sales and other Form 4 activity remain visible as context and do not create a negative score.
Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.
Insider activity timeline
Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.
—
Purchase breadth, concentration & cluster buying
These modules activate when qualifying purchases enter the 180-day research window.
SIGNAL HISTORY
Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2025-03-11 · Kahn Clare.
Recent Form 4 activity
P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.
Market context
Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.
Short interest
Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.
- Shares short
- 12,726,346
- Previous report
- 17,106,152
- Avg daily volume
- 1,655,956
- Days to cover
- 7.7
FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.
Historical equity purchases
Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.
| Transaction date | Reporting owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2025-03-11 | Kahn Clare | Purchase (P) | Common Stock | 1,860 | USD 5.34 | USD 9,932 | SEC filing ↗ |
| 2025-02-19 | EDELMAN JOSEPH; PERCEPTIVE ADVISORS LLC; PERCEPTIVE LIFE SCIENCES MASTER FUND LTD; Perceptive Xontogeny Venture Fund, LP | Purchase (P) | Common Stock | 5,000,000 | USD 4.03 | USD 20,150,000 | SEC filing ↗ |
| 2025-02-19 | BCIP Life Sciences Associates, LP; BCLS II Equity Opportunities GP, LLC; BCLS II Equity Opportunities, LP; BCLS II Investco (GP), LLC; BCLS II Investco, LP; BCLS SB Investco, LP; Bain Capital Life Sciences Fund II, L.P.; Bain Capital Life Sciences Investors II, LLC; Bain Capital Life Sciences Investors, LLC; Bain Capital Life Sciences Partners, LP | Purchase (P) | Common Stock | 1,000,000 | USD 4.03 | USD 4,030,000 | SEC filing ↗ |
| 2025-02-18 | Adage Capital Management, L.P.; Atchinson Robert; Gross Phillip | Purchase (P) | Common Stock, $0.001 par value per share | 252,545 | USD 7.56 | USD 1,909,240 | SEC filing ↗ |
| 2024-06-07 | Kahn Clare | Purchase (P) | Common Stock | 1,100 | USD 7.67 | USD 8,437 | SEC filing ↗ |
| 2024-01-11 | Kolchinsky Peter; RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; RA Capital Nexus Fund, L.P.; Shah Rajeev M. | Purchase (P) | Common Stock | 904,160 | USD 5.53 | USD 5,000,005 | SEC filing ↗ |
| 2024-01-11 | EDELMAN JOSEPH; PERCEPTIVE ADVISORS LLC; PERCEPTIVE LIFE SCIENCES MASTER FUND LTD; Perceptive Xontogeny Venture Fund, LP | Purchase (P) | Common Stock | 3,410,713 | USD 5.53 | USD 18,861,243 | SEC filing ↗ |
| 2021-03-23 | EDELMAN JOSEPH; PERCEPTIVE ADVISORS LLC; PERCEPTIVE LIFE SCIENCES MASTER FUND LTD | Purchase (P) | Common Stock | 2,608,695 | USD 5.75 | USD 14,999,996 | SEC filing ↗ |
| 2021-03-19 | Kolchinsky Peter; RA CAPITAL MANAGEMENT, L.P.; RA Capital Healthcare Fund LP; Shah Rajeev M. | Purchase (P) | Common Stock | 2,206,685 | USD 5.75 | USD 12,688,439 | SEC filing ↗ |
Form 4 evidence
62 transaction lines in the latest 365-day window; 207 in local history.
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-10-02 | SMITH IAN F | Option exercise / conversion (M) | Common Stock | 3,440 | USD — | USD — | SEC filing ↗ |
| 2026-07-02 | SMITH IAN F | Option exercise / conversion (M) | Common Stock | 3,440 | USD — | USD — | SEC filing ↗ |
| 2026-04-02 | SMITH IAN F | Option exercise / conversion (M) | Common Stock | 3,441 | USD — | USD — | SEC filing ↗ |
Show recent Form 4 evidence (30 grouped rows)
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-10-02 | SMITH IAN F | Option exercise / conversion (M) | Common Stock | 3,440 | USD — | USD — | SEC filing ↗ |
| 2026-07-02 | SMITH IAN F | Option exercise / conversion (M) | Common Stock | 3,440 | USD — | USD — | SEC filing ↗ |
| 2026-04-02 | SMITH IAN F | Option exercise / conversion (M) | Common Stock | 3,441 | USD — | USD — | SEC filing ↗ |
| 2026-02-18 | Tan Kevin | Sale (S) | Common Stock | 5,404 | USD 5.82 | USD 31,451 | SEC filing ↗ |
| 2026-02-18 | Howton David T | Sale (S) | Common Stock | 7,469 | USD 5.82 | USD 43,470 | SEC filing ↗ |
| 2026-02-18 | Herzich Paul | Sale (S) | Common Stock | 3,616 | USD 5.82 | USD 21,045 | SEC filing ↗ |
| 2026-02-18 | Hanrahan Jessie | Sale (S) | Common Stock | 4,134 | USD 5.82 | USD 24,060 | SEC filing ↗ |
| 2026-02-18 | Ganot Ilan | Sale (S) | Common Stock | 2,658 | USD 5.82 | USD 15,470 | SEC filing ↗ |
| 2026-02-18 | Cumbo Alexander | Sale (S) | Common Stock | 16,644 | USD 5.82 | USD 96,868 | SEC filing ↗ |
| 2026-02-18 | Brooks Gabriel | Sale (S) | Common Stock | — | USD — | USD — | SEC filing ↗ |
| 2026-02-13 | Tan Kevin | Option exercise / conversion (M) | Common Stock | 10,625 | USD — | USD — | SEC filing ↗ |
| 2026-02-13 | Howton David T | Option exercise / conversion (M) | Common Stock | 14,687 | USD — | USD — | SEC filing ↗ |
| 2026-02-13 | Herzich Paul | Option exercise / conversion (M) | Common Stock | 7,187 | USD — | USD — | SEC filing ↗ |
| 2026-02-13 | Hanrahan Jessie | Option exercise / conversion (M) | Common Stock | 8,125 | USD — | USD — | SEC filing ↗ |
| 2026-02-13 | Ganot Ilan | Option exercise / conversion (M) | Common Stock | 4,861 | USD — | USD — | SEC filing ↗ |
| 2026-02-13 | Cumbo Alexander | Option exercise / conversion (M) | Common Stock | 30,031 | USD — | USD — | SEC filing ↗ |
| 2026-02-13 | Brooks Gabriel | Option exercise / conversion (M) | Common Stock | 10,937 | USD — | USD — | SEC filing ↗ |
| 2026-02-04 | Tan Kevin | Sale (S) | Common Stock | 14,783 | USD 6.44 | USD 95,203 | SEC filing ↗ |
| 2026-02-04 | Howton David T | Sale (S) | Common Stock | 18,894 | USD 6.44 | USD 121,677 | SEC filing ↗ |
| 2026-02-04 | Herzich Paul | Sale (S) | Common Stock | 10,905 | USD 6.44 | USD 70,228 | SEC filing ↗ |
| 2026-02-04 | Hanrahan Jessie | Sale (S) | Common Stock | 12,348 | USD 6.44 | USD 79,521 | SEC filing ↗ |
| 2026-02-04 | Ganot Ilan | Sale (S) | Common Stock | 7,205 | USD 6.44 | USD 46,400 | SEC filing ↗ |
| 2026-02-04 | Cumbo Alexander | Sale (S) | Common Stock | 48,913 | USD 6.44 | USD 315,000 | SEC filing ↗ |
| 2026-02-04 | Brooks Gabriel | Sale (S) | Common Stock | 12,616 | USD 6.44 | USD 81,247 | SEC filing ↗ |
| 2026-02-02 | Tan Kevin | Sale (S) | Common Stock | 26,837 | USD 6.44 | USD 172,830 | SEC filing ↗ |
| 2026-02-02 | Howton David T | Sale (S) | Common Stock | 37,771 | USD 6.44 | USD 243,245 | SEC filing ↗ |
| 2026-02-02 | Herzich Paul | Sale (S) | Common Stock | 26,250 | USD 6.44 | USD 169,050 | SEC filing ↗ |
| 2026-02-02 | Hanrahan Jessie | Sale (S) | Common Stock | 26,535 | USD 6.44 | USD 170,885 | SEC filing ↗ |
| 2026-02-02 | Cumbo Alexander | Sale (S) | Common Stock | 80,258 | USD 6.44 | USD 516,862 | SEC filing ↗ |
| 2026-02-02 | Brooks Gabriel | Sale (S) | Common Stock | 28,335 | USD 6.44 | USD 182,477 | SEC filing ↗ |
Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.
Snapshot & identity
| Snapshot date | 2026-10-18 |
|---|---|
| Ranking version | US-v1.2 |
| Data quality | PASS ELIGIBLE · — |
| Ticker | SLDB |
| CIK | 0001707502 |
| Sector | Healthcare |
| Industry | Biotechnology Yahoo Finance |
| SEC SIC | 2836 Biological Products, (No Diagnostic Substances) |
| Exchange | Nasdaq |
Data coverage
| Local Form 4 history | 207 transaction lines from 2020-02-10 to 2026-10-02 9 P purchase lines · 76 S sale lines · 122 other lines |
|---|---|
| SEC company submissions | Open SEC filings ↗ |
Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.