NEPH — NEPHROS INC
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 2019-08-14.
Performance
Technicals
Others in Healthcare
Measured signals that fired on NEPH
| date | signal | measured base rate |
|---|---|---|
| 2026-07-31 | 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 |
|---|---|---|---|---|---|
| 2026-08-18 | Wexford GP LLC 10% owner | Option exercise | 812 | 3.60 | 2.9K |
| 2026-08-18 | JACOBS JOSEPH 10% owner | Option exercise | 812 | 3.60 | 2.9K |
| 2026-08-18 | DAVIDSON CHARLES E 10% owner | Option exercise | 812 | 3.60 | 2.9K |
| 2026-08-18 | WEXFORD CAPITAL LP 10% owner | Option exercise | 812 | 3.60 | 2.9K |
| 2026-08-12 | Amron Arthur H Director | Grant or award | 2.4K | 0.00 | 0 |
| 2026-05-11 | Amron Arthur H Director | Grant or award | 3.6K | 0.00 | 0 |
| 2026-03-23 | Banks Robert R. Jr. President and CEO | Option exercise | 120.0K | 1.44 | 172.8K |
| 2026-03-23 | Krandel Judy Chief Financial Officer | Option exercise | 68.9K | 1.71 | 117.8K |
| 2026-03-16 | Amron Arthur H Director | Grant or award | 3.6K | 0.00 | 0 |
| 2025-11-10 | Spandow Oliver J. Director | Grant or award | 8.0K | 0.00 | 0 |
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 |
|---|---|---|
| WEXFORD CAPITAL LP | 10.7M | 3.6M |
| Topline Capital Management, LLC | 1.7M | 582.0K |
| VANGUARD CAPITAL MANAGEMENT LLC | 592.0K | 198.6K |
| Cornerstone Capital, Inc. | 383.5K | 128.7K |
| BARD ASSOCIATES INC | 361.2K | 121.2K |
| Mesirow Financial Investment Management, Inc. | 357.6K | 120.0K |
| MORGAN STANLEY | 330.5K | 110.9K |
| RENAISSANCE TECHNOLOGIES LLC | 296.2K | 99.4K |
| GEODE CAPITAL MANAGEMENT, LLC | 217.4K | 72.9K |
| HighTower Advisors, LLC | 177.9K | 59.7K |
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 →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| 4 | 2026-08-20 | 2026-08-18 | on EDGAR ↗ |
| 4 | 2026-08-14 | 2026-08-12 | on EDGAR ↗ |
| 10-Q | 2026-08-10 | 2026-06-30 | on EDGAR ↗ |
| 8-K | 2026-08-06 | 2026-08-06 | on EDGAR ↗ |
| 8-K | 2026-06-15 | 2026-06-12 | on EDGAR ↗ |
| 4 | 2026-06-12 | 2026-05-11 | on EDGAR ↗ |
| 8-K | 2026-05-07 | 2026-05-07 | on EDGAR ↗ |
| 10-Q | 2026-05-07 | 2026-03-31 | on EDGAR ↗ |
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 →
Recent headlines
- NEPHROS INC (NEPH) filed form 4 · 2026-08-20 · SEC EDGAR
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