PHIO — Phio Pharmaceuticals Corp.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.
Performance
Technicals
Others in Healthcare
Measured signals that fired on PHIO
| date | signal | measured base rate |
|---|---|---|
| 2026-08-07 | Short volume far above its own normal short | -0.76% over 21 days · t = -2.79 · n = 5,897 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-19 | Plott Ronald Todd Director | Open-market purchase | 15.0K | 1.14 | 17.1K |
| 2026-08-18 | Bitterman Robert J Chairman, Pres. & CEO | Open-market purchase | 10.0K | 1.06 | 10.6K |
| 2026-06-26 | Bitterman Robert J Chairman, Pres. & CEO | Open-market purchase | 10.0K | 0.99 | 9.9K |
| 2026-02-05 | Deming David H Director | Grant or award | 23.8K | 0.00 | 0 |
| 2026-02-05 | Bitterman Robert J Chairman, Pres. & CEO | Grant or award | 120.0K | 0.00 | 0 |
| 2026-02-05 | Carson Lisa Cabott Chief Financial Officer | Grant or award | 47.0K | 0.00 | 0 |
| 2026-02-05 | Lockshin Curtis Director | Grant or award | 16.6K | 0.00 | 0 |
| 2026-02-05 | Freeman Jonathan E Director | Grant or award | 16.6K | 0.00 | 0 |
| 2026-02-05 | BRADFORD PATRICIA A Director | Grant or award | 18.5K | 0.00 | 0 |
| 2025-12-31 | Bitterman Robert J Chairman, Pres. & CEO | Open-market purchase | 5.0K | 1.03 | 5.2K |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| GEODE CAPITAL MANAGEMENT, LLC | 179.6K | 147.3K |
| JANE STREET GROUP, LLC | 145.4K | 119.2K |
| VANGUARD CAPITAL MANAGEMENT LLC | 97.4K | 79.9K |
| Cetera Investment Advisers | 54.9K | 45.0K |
| VANGUARD FIDUCIARY TRUST CO | 46.6K | 38.2K |
| TWO SIGMA INVESTMENTS, LP | 39.6K | 32.5K |
| Scientech Research LLC | 36.6K | 30.0K |
| UBS Group AG | 32.9K | 27.0K |
| XTX Topco Ltd | 30.3K | 24.9K |
| NORTHERN TRUST CORP | 29.0K | 23.8K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
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