Yarrow Bioscience Inc.
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A clinical-stage biotech developing YB-101, a potential first-in-class antibody therapy for Graves' disease and thyroid eye disease, two autoimmune conditions that attack the thyroid. Founded and incubated by investment firm RTW Investments, it merged with VYNE Therapeutics in 2026 and kept the Yarrow name. That name nods to the yarrow flower, a legendary healing herb said to have been used by Greek hero Achilles to treat soldiers' wounds.
Granted 500.1K
Granted 126.1K
Granted 125.0K
Granted 125.0K
Bought 28.0K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Domzalski DavidPRESIDENT AND CEO, Director · 18 transactions | +736.8% | 438.8K | 500.1K | — | — |
| Harsch MutyaCHIEF LEGAL OFFICER AND GC · 14 transactions | +373.4% | 121.9K | 126.1K | — | — |
| Stuart IainCHIEF SCIENTIFIC OFFICER · 13 transactions | +997.4% | 112.4K | 125.0K | — | — |
| Zeronda TylerCHIEF FINANCIAL OFFICER · 13 transactions | +1144.7% | 99.8K | 125.0K | — | — |
| Lepore Patrick GDirector · 2 transactions | +119.3% | 51.5Kas of Jan 2025 | — | 28.0K | — |
Select a row to see that insider’s individual transactions.
Net open-market activity over the last 3 years: +28.0K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.