Vistagen Therapeutics, Inc. has 17 Schedule 13D or 13G filings on record since 2025-08-14. 3 holders' latest filing reports 5% or more of common stock, par value $0.001 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Chen Yu | 9.99% | 4,100,029 | SCHEDULE 13G/A, 2026-05-15 | 2026-03-31 |
| Commodore Capital LP | 9.9% | 4,244,590 | SCHEDULE 13G/A, 2026-08-14 | |
| Chen Yu | 6.7% | 2,960,404 | SCHEDULE 13G/A, 2026-08-14 | 2026-06-30 |
| Great Point Partners, LLC | 4.95% | 2,055,834 | SCHEDULE 13G/A, 2026-02-17 | 2025-12-31 |
| Nantahala Capital Management, LLC | 4.71% | 1,953,045 | SCHEDULE 13G/A, 2026-02-13 | 2025-12-31 |
| The Vanguard Group | 4.62% | 1,824,738 | SCHEDULE 13G/A, 2026-01-30 | 2025-12-31 |
| StemPoint Capital LP | 1.5% | 616,749 | SCHEDULE 13G/A, 2026-02-17 | 2025-12-31 |
| Janus Henderson Group Plc | 0% | 0 | SCHEDULE 13G/A, 2026-02-17 | 2025-12-31 |
| Orbimed Advisors LLC | 0% | 0 | SCHEDULE 13G/A, 2026-08-14 | 2026-06-30 |
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-14 | Great Point Partners, LLC | 6.59% | SCHEDULE 13G/A |
| 2025-09-08 | Janus Henderson Group Plc | 13.6% | SCHEDULE 13G |
| 2025-10-31 | The Vanguard Group | 5.5% | SCHEDULE 13G/A |
| 2025-11-14 | Orbimed Capital LLC | 5.34% | SCHEDULE 13G |
| 2025-11-14 | Nantahala Capital Management, LLC | 9.99% | SCHEDULE 13G/A |
| 2025-11-14 | Great Point Partners, LLC | 6.28% | SCHEDULE 13G/A |
| 2026-01-30 | The Vanguard Group | 4.62% | SCHEDULE 13G/A |
| 2026-02-13 | Nantahala Capital Management, LLC | 4.71% | SCHEDULE 13G/A |
| 2026-02-17 | Orbimed Capital LLC | 4.2% | SCHEDULE 13G/A |
| 2026-02-17 | StemPoint Capital LP | 1.5% | SCHEDULE 13G/A |
| 2026-02-17 | Great Point Partners, LLC | 4.95% | SCHEDULE 13G/A |
| 2026-02-17 | Janus Henderson Group Plc | 0% | SCHEDULE 13G/A |
| 2026-02-17 | Commodore Capital LP | 9.9% | SCHEDULE 13G/A |
| 2026-05-15 | Chen Yu | 9.99% | SCHEDULE 13G/A |
| 2026-08-14 | Orbimed Advisors LLC | 0% | SCHEDULE 13G/A |
| 2026-08-14 | Chen Yu | 6.7% | SCHEDULE 13G/A |
| 2026-08-14 | Commodore Capital LP | 9.9% | SCHEDULE 13G/A |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.