RLYB
Rallybio Corp
Latest Form 4:Purchase$84KbyADAR1 Capital Management, LLC (10% Owner) · filed May 21, 2026
Rallybio Corp (RLYB) has 6 SEC Form 4 filings (17 transaction rows) in the rolling window, disclosed by 2 distinct insiders. Most recent filing: Jul 10, 2026.
The most active filer is 10% Owner ADAR1 Capital Management, LLC with 8 filings. Insiders have net bought $4.2M over the trailing 6 months. The largest single insider purchase in this window was $1.7M by 10% Owner ADAR1 Capital Management, LLC on May 4, 2026.
- Industry:Biotechnology
- CEO:Stephen Uden
- Employees:9
- HQ:New Haven, CT, US
- IPO:2021-07-29
Insider Buying
$4.2M
reported purchases (SEC code P)
Insider Selling
$4K
reported sales (SEC code S)
Unique Insiders
2
in the rolling window
Market Cap
$89.3M
latest known value
| Source | ||||||
|---|---|---|---|---|---|---|
| 10% Owner | Purchase | 6,009 | $84K | May 21 | SEC ↗ | |
| 10% Owner | Purchase | 10,200 | $143K | May 21 | SEC ↗ | |
| 10% Owner | Purchase | 79,259 | $1.1M | May 16 | SEC ↗ | |
| 10% Owner | Purchase | 300 | $4K | May 16 | SEC ↗ | |
| 10% Owner | Purchase | 50,000 | $700K | May 14 | SEC ↗ | |
| 10% Owner | Purchase | 800 | $11K | May 14 | SEC ↗ | |
ADAR1 Capital Management, LLCFirst in 7 months | 10% Owner | Purchase | 120,804 | $1.7M | May 7 | SEC ↗ |
ADAR1 Capital Management, LLCFirst in 7 months | 10% Owner | Purchase | 35,101 | $491K | May 7 | SEC ↗ |
Lieber Jonathan IFirst filing | Chief Financial Officer | Sale | 789 | $4K | Feb 23 | SEC ↗ |
Related companies
Rallybio Corp is in the Healthcare sector.