Rallybio Corp (RLYB) insider trading
Every open-market stock purchase and sale by Rallybio Corp executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Insiders bought $4.2M over the last 12 months (4 buys).
- Insiders sold $4K over the last 12 months (1 sale).
- Last insider buy: ADAR1 Capital Management LLC (10% owner), $140K, 5 months ago.
Last 12 months: insiders bought $4.2M (4 buys) and sold $4K (1 sale). Last close $16.22 on Oct 21, 2026.
Recent RLYB insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Oct 16, 2026 | Helen M Boudreau (Insider) | Bought (not open market) | $31.5K |
| Oct 16, 2026 | Paula Soteropoulos (Insider) | Bought (not open market) | $8.5K |
| Oct 16, 2026 | Paula Soteropoulos (Insider) | Bought (not open market) | — |
| Oct 16, 2026 | Helen M Boudreau (Insider) | Bought (not open market) | — |
| Oct 12, 2026 | Robert Lorne Hopfner (Insider) | Bought (not open market) | $69.9K |
| Oct 12, 2026 | Robert Lorne Hopfner (Insider) | Bought (not open market) | $31.5K |
| Oct 12, 2026 | Robert Lorne Hopfner (Insider) | Bought (not open market) | $8.5K |
| Oct 12, 2026 | Robert Lorne Hopfner (Insider) | Bought (not open market) | $5.1K |
| Oct 12, 2026 | Robert Lorne Hopfner (Insider) | Bought (not open market) | — |
| Oct 12, 2026 | Robert Lorne Hopfner (Insider) | Bought (not open market) | — |
| Oct 9, 2026 | Jonathan I Lieber (CFO) | Bought (not open market) | $23.8K |
| Oct 9, 2026 | Jonathan I Lieber (CFO) | Bought (not open market) | — |
| Oct 6, 2026 | Stephen Uden (CEO) | Bought (not open market) | $137K |
| Oct 6, 2026 | Stephen Uden (CEO) | Bought (not open market) | — |
| Sep 29, 2026 | Jonathan I Lieber (CFO) | Bought (not open market) | $30.4K |
| Sep 29, 2026 | Jonathan I Lieber (CFO) | Bought (not open market) | — |
| Sep 24, 2026 | Hui Liu (Insider) | Bought (not open market) | $64.5K |
| Sep 24, 2026 | Hui Liu (Insider) | Bought (not open market) | $47.5K |
| Sep 24, 2026 | Hui Liu (Insider) | Bought (not open market) | $8.5K |
| Sep 24, 2026 | Hui Liu (Insider) | Bought (not open market) | — |
| Sep 16, 2026 | Wendy Chung (Insider) | Bought (not open market) | $8.5K |
| Sep 16, 2026 | Wendy Chung (Insider) | Bought (not open market) | — |
| Jul 6, 2026 | Helen M Boudreau (Insider) | Bought (not open market) | $8.5K |
| Jul 6, 2026 | Helen M Boudreau (Insider) | Bought (not open market) | — |
| May 19, 2026 | ADAR1 Capital Management LLC (10% owner) | Bought | $140K |
Who's trading RLYB
- Helen M Boudreau, Insider: other filings, last Oct 16, 2026
- Paula Soteropoulos, Director: other filings, last Oct 16, 2026
- Robert Lorne Hopfner, Insider: other filings, last Oct 12, 2026
- Jonathan I Lieber, CFO: sold $4K (1 sale), last Oct 9, 2026
- Stephen Uden, CEO: other filings, last Oct 6, 2026
- Hui Liu, Insider: other filings, last Sep 24, 2026
- Wendy Chung, Director: other filings, last Sep 16, 2026
- ADAR1 Capital Management LLC, 10% owner: bought $4.2M (14 buys), last May 19, 2026
- Martin Mackay, Director: other filings, last Feb 18, 2026
- Ronald Hunt, Director: other filings, last Feb 18, 2026
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