RLYB insider trading — Rallybio Corp
No open-market insider purchases or sales were filed for Rallybio Corp (RLYB) in the last 90 days. Other insider transactions — such as stock awards, option exercises or tax withholding — are listed below.
Updated Oct 16, 2026.
Recent RLYB insider transactions
Every Form 4 filed by Rallybio Corp officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Oct 12, 2026 | Hopfner Robert Lorne | Director | M · Option exercise | Direct | 14,820 | $7.41 | $110K | Form 4 |
| Oct 9, 2026 | Lieber Jonathan I | Chief Financial Officer | M · Option exercise | Direct | 3,910 | $6.08 | $24K | Form 4 |
| Oct 6, 2026 | Uden Stephen | Chief Executive Officer | M · Option exercise | Direct | 22,456 | $6.08 | $137K | Form 4 |
| Sep 29, 2026 | Lieber Jonathan I | Chief Financial Officer | M · Option exercise | Direct | 5,000 | $6.08 | $30K | Form 4 |
| Sep 24, 2026 | Liu Hui | Director | M · Option exercise | Direct | 12,044 | $6.06 | $73K | Form 4 |
| Sep 16, 2026 | Chung Wendy | Director | M · Option exercise | Direct | 3,562 | $2.38 | $8K | Form 4 |
RLYB insider trading FAQ
Are insiders buying RLYB stock?
Not on the open market. In the last 90 days, Rallybio Corp insiders made no open-market purchases, and no open-market sales. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading RLYB?
No insider bought or sold on the open market in the last 90 days.
Where does RLYB insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.