Form 4: Rallybio Director Reports Stock Transaction
Insider Transaction (Form 4)
Robert Lorne Hopfner, a Director of Rallybio Corp, reported multiple transactions in common stock on October 12, 2026.
Summary
- Option exercise/conversion: acquired 9,196 Common Stock at $7.60 ($69,890) on October 12, 2026; holds 9,196 after (Direct).
- Option exercise/conversion: acquired 3,562 Common Stock at $2.38 ($8,478) on October 12, 2026; holds 12,758 after (Direct).
- Option exercise/conversion: acquired 2,062 Common Stock at $15.28 ($31,507) on October 12, 2026; holds 14,820 after (Direct).
- Option exercise/conversion: disposed of 9,196 Option (Right to Buy) at $0.56 ($5,150) on October 12, 2026 (Direct).
- Option exercise/conversion: disposed of 3,562 Option (Right to Buy) on October 12, 2026 (Direct).
- Option exercise/conversion: disposed of 2,062 Option (Right to Buy) on October 12, 2026 (Direct).
Sentiment
Score: 5
Explanation: StockSavvy.ai views this as routine: the reported changes are grants, option exercises, tax withholding or similar administrative transactions, which carry limited directional signal.
Insider Transactions
Robert Lorne Hopfner — Director
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-10-12 | Option exercise/conversion | Common Stock | 9,196 | $8 | $69.9K | 9,196 |
| 2026-10-12 | Option exercise/conversion | Common Stock | 3,562 | $2 | $8.5K | 12,758 |
| 2026-10-12 | Option exercise/conversion | Common Stock | 2,062 | $15 | $31.5K | 14,820 |
| 2026-10-12 | Option exercise/conversion | Option (Right to Buy) | 9,196 | $1 | $5.1K | 0 |
| 2026-10-12 | Option exercise/conversion | Option (Right to Buy) | 3,562 | — | — | 0 |
| 2026-10-12 | Option exercise/conversion | Option (Right to Buy) | 2,062 | — | — | 0 |
Key Dates
| Date | Description |
|---|---|
| 2026-10-12 | Option exercise/conversion (9,196 shares) |
| 2026-10-12 | Option exercise/conversion (3,562 shares) |
| 2026-10-12 | Option exercise/conversion (2,062 shares) |
| 2026-10-12 | Option exercise/conversion (9,196 shares) |
| 2026-10-12 | Option exercise/conversion (3,562 shares) |
| 2026-10-12 | Option exercise/conversion (2,062 shares) |
Keywords
insider transaction, Form 4, RLYB, Rallybio Corp, neutral, Robert Lorne Hopfner
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