Form 4: SI-BONE Director Sells Shares
Insider Transaction (Form 4)
Jeffrey W Dunn, a Director of SI-BONE, Inc., sold 20,000 shares of common stock on September 1, 2026 for $18.91 per share.
Summary
- Option exercise/conversion: acquired 18,633 Common Stock at $4.68 ($87,202) on September 1, 2026; holds 34,690 after (Direct).
- Option exercise/conversion: acquired 1,367 Common Stock at $4.68 ($6,398) on September 1, 2026; holds 36,057 after (Direct).
- Open-market sale: disposed of 18,633 Common Stock at $18.91 ($352,313) on September 1, 2026; holds 17,424 after (Direct).
- Open-market sale: disposed of 1,367 Common Stock at $18.91 ($25,847) on September 1, 2026; holds 16,057 after (Direct).
- Option exercise/conversion: disposed of 1,367 Stock Option (Right to Buy) on September 1, 2026; holds 104,893 after (Direct).
- Option exercise/conversion: disposed of 18,633 Stock Option (Right to Buy) on September 1, 2026; holds 86,260 after (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $378,160 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Jeffrey W Dunn — Director
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-09-01 | Option exercise/conversion | Common Stock | 18,633 | $5 | $87.2K | 34,690 |
| 2026-09-01 | Option exercise/conversion | Common Stock | 1,367 | $5 | $6.4K | 36,057 |
| 2026-09-01 | Open-market sale | Common Stock | 18,633 | $19 | $352.3K | 17,424 |
| 2026-09-01 | Open-market sale | Common Stock | 1,367 | $19 | $25.8K | 16,057 |
| 2026-09-01 | Option exercise/conversion | Stock Option (Right to Buy) | 1,367 | — | — | 104,893 |
| 2026-09-01 | Option exercise/conversion | Stock Option (Right to Buy) | 18,633 | — | — | 86,260 |
Key Dates
| Date | Description |
|---|---|
| 2026-09-01 | Option exercise/conversion (18,633 shares) |
| 2026-09-01 | Option exercise/conversion (1,367 shares) |
| 2026-09-01 | Open-market sale (18,633 shares) |
| 2026-09-01 | Open-market sale (1,367 shares) |
| 2026-09-01 | Option exercise/conversion (1,367 shares) |
| 2026-09-01 | Option exercise/conversion (18,633 shares) |
Keywords
insider transaction, Form 4, SIBN, SI-BONE, Inc., bearish, Jeffrey W Dunn
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