List of insiders holdings for Yarrow Bioscience, Inc.:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| 1 | Vivo Capital VIII LLC Vivo Capital Surplus Fund VIII L.P. Vivo Capital Fund VIII L.P. 10% Owner | 2020-06-11 17:09:43 | 3,643,824 0 | 3,643,824 | Form 13G |
| 2 | Remeditex Ventures LLC 10% Owner | 2018-01-29 16:19:55 | 2,761,663 0 | 2,761,663 | Form 4 |
| 3 | Frey Rebecca Chief Executive Officer | 2026-07-29 21:00:48 | 878,194 0 | 878,194 | Form 3 |
| 4 | Hadar Ilan CFO and Country Manager | 2020-03-11 17:56:34 | 546,910 0 | 546,910 | Form 4 |
| 5 | Hirsch Stanley Director | 2020-04-07 17:22:35 | 201,410 328,609 | 530,019 | Form 4 |
| 6 | Cha Albert Director | 2018-01-29 16:14:57 | 0 486,695 | 486,695 | Form 4 |
| 7 | Domzalski David PRESIDENT AND CEO | 2026-07-24 17:00:05 | 347,174 0 | 347,174 | Form 4 |
| 8 | PERCEPTIVE ADVISORS LLC PERCEPTIVE LIFE SCIENCES MASTER FUND LTD EDELMAN JOSEPH 10% Owner | 2026-08-03 16:00:01 | 266,756 0 | 266,756 | Form 13G |
| 9 | RTW Fund Group GP LLC WONG RODERICK 10% Owner | 2026-07-30 16:06:33 | 266,307 0 | 266,307 | Form 13G |
| 10 | ORBIMED ADVISORS LLC OrbiMed Capital GP X LLC OrbiMed Genesis GP LLC Director | 2026-08-05 21:08:12 | 266,306 0 | 266,306 | Form 13D |
| 11 | Ryder Steven Chief Medical Officer | 2026-07-29 21:03:13 | 228,330 0 | 228,330 | Form 3 |
| 12 | Presidio Partners 2007 GP L.P. Presidio Partners 2007 (Parallel) L.P. Presidio Partners 2007 L.P. Collier David J Watson James F Sohail Faysal A. Former 10% Owner | 2018-07-26 19:11:02 | 0 200,972 | 200,972 | Form 4 |
| 13 | Zeronda Tyler Director | 2026-07-29 21:33:55 | 185,798 0 | 185,798 | Form 4 |
| 14 | AI Biotechnology LLC Access Industries Holdings LLC ACCESS INDUSTRIES MANAGEMENT LLC Blavatnik Len 10% Owner | 2026-07-29 16:06:07 | 178,180 0 | 178,180 | Form 13D |
| 15 | Payton Lori Chief Development Officer | 2026-07-29 21:05:14 | 175,639 0 | 175,639 | Form 3 |
| 16 | Alford Rachael Chief Operating Officer | 2026-07-29 21:08:40 | 175,639 0 | 175,639 | Form 3 |
| 17 | Lundberg Sven Ante Director | 2026-07-29 21:15:10 | 175,639 0 | 175,639 | Form 3 |
| 18 | Whitcup Scott M Director | 2019-08-08 21:17:23 | 134,099 0 | 134,099 | Form 4/A |
| 19 | Saik Andrew Chief Financial Officer | 2021-06-02 16:31:40 | 116,468 0 | 116,468 | Form 4 |
| 20 | Wiley Matthew T. Chief Commercial Officer | 2021-07-02 16:36:53 | 109,246 0 | 109,246 | Form 4 |
| 21 | Spellman Mary Chief Medical Officer | 2018-12-12 18:43:44 | 96,000 0 | 96,000 | Form 4 |
| 22 | Stuart Iain CHIEF SCIENTIFIC OFFICER | 2026-07-24 17:00:08 | 95,944 0 | 95,944 | Form 4 |
| 23 | Harsch Mutya CHIEF LEGAL OFFICER AND GC | 2026-07-24 17:00:07 | 95,918 0 | 95,918 | Form 4 |
| 24 | Hoerter Steven L. Director | 2026-07-29 21:11:23 | 87,820 0 | 87,820 | Form 3 |
| 25 | White William Richard Director | 2026-07-29 21:20:21 | 87,820 0 | 87,820 | Form 3 |
| 26 | Silverman Peter B. Director | 2026-07-29 21:17:12 | 87,820 0 | 87,820 | Form 3 |
| 27 | BERNS PAUL L Director | 2019-08-08 21:18:55 | 65,780 0 | 65,780 | Form 4/A |
| 28 | MCGIRR DAVID W J Director | 2019-08-08 21:17:22 | 65,780 0 | 65,780 | Form 4/A |
| 29 | Ebel Ted Director | 2019-08-08 21:39:57 | 53,423 0 | 53,423 | Form 4/A |
| 30 | BALL KRISTINE M See Remarks | 2019-12-16 17:14:49 | 52,534 0 | 52,534 | Form 4/A |
| 31 | Kwon Paul Chief Scientific Officer | 2019-12-16 17:13:19 | 52,534 0 | 52,534 | Form 4/A |
| 32 | Royston Aaron Director | 2019-08-08 21:24:22 | 22,500 0 | 22,500 | Form 4/A |
| 33 | Bright Rex Director | 2021-07-20 17:05:03 | 20,500 0 | 20,500 | Form 4 |
| 34 | Basta Steven L Director | 2025-12-15 16:15:08 | 20,000 0 | 20,000 | Form 4 |
| 35 | Little Elisabeth Sandoval Director | 2025-12-15 16:15:11 | 20,000 0 | 20,000 | Form 4 |
| 36 | BARBARI SHARON Director | 2025-12-15 16:15:06 | 20,000 0 | 20,000 | Form 4 |
| 37 | LEPORE PATRICK G Director | 2025-12-15 16:15:09 | 20,000 0 | 20,000 | Form 4 |
| 38 | Borowski Christine Director | 2024-12-13 16:15:33 | 20,000 0 | 20,000 | Form 4 |
| 39 | Bruno Anthony D Director | 2024-12-13 16:15:14 | 20,000 0 | 20,000 | Form 4 |
| 40 | Krasnow Ronald A. See Remarks | 2019-12-13 21:58:18 | 15,819 0 | 15,819 | Form 4 |
| 41 | Ashiya Mona Director | 2026-07-29 21:36:56 | 15,435 0 | 15,435 | Form 4 |
| 42 | FMR LLC See Remark 1 | 2019-02-13 11:58:21 | 333 0 | 333 | Form 13G |
| 43 | venBio Global Strategic Fund II L.P. 10% Owner | 2020-04-16 12:47:05 | 0 0 | 0 | Form 13D |
| 44 | Merck & Co. Inc. Merck Sharp & Dohme Corp. 10% Owner | 2019-02-14 14:09:26 | 0 0 | 0 | Form 13G |