NEPH
Nephros, Inc.
NASDAQ · Healthcare · Medical - Instruments & Supplies · US
$4.06
−2.87%0
Insider buys (3m)
0
Insider sells (3m)
$0.00
Net value (3m)
+22.2%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Aug 20, 2026 | WEXFORD CAPITAL LP · 10 percent owner | M-Exempt | 812 | $3.60 |
| Aug 20, 2026 | WEXFORD CAPITAL LP · 10 percent owner | M-Exempt | 3,765 | $3.60 |
| Aug 14, 2026 | Amron Arthur H · director | A-Award | 2,418 | $0.00 |
| Jun 12, 2026 | Amron Arthur H · director | A-Award | 3,574 | $0.00 |
| Mar 25, 2026 | Krandel Judy · officer: Chief Financial Officer | M-Exempt | 68,861 | $1.71 |
| Mar 25, 2026 | Banks Robert R. Jr. · officer: President and CEO | M-Exempt | 120,000 | $1.44 |
| Mar 18, 2026 | Krandel Judy · officer: Chief Financial Officer | A-Award | 4,000 | $2.92 |
| Nov 13, 2025 | Amron Arthur H · director | A-Award | 5,391 | $0.00 |
| Nov 13, 2025 | Nettis Lisa Marie · director | A-Award | 1,622 | $0.00 |
| Nov 13, 2025 | Spandow Oliver J. · director | A-Award | 8,036 | $0.00 |
| Aug 13, 2025 | Nettis Lisa Marie · director | A-Award | 13,229 | $4.49 |
| Mar 31, 2025 | Krandel Judy · officer: Chief Financial Officer | A-Award | 54,359 | $1.68 |
| Jan 3, 2025 | Amron Arthur H · director | A-Award | 22,418 | $0.00 |
| Jan 3, 2025 | Spandow Oliver J. · director | A-Award | 33,241 | $0.00 |
| Jan 3, 2025 | Spandow Oliver J. · director | A-Award | 7,050 | $1.47 |
| Jan 3, 2025 | Harris Joseph Michael · director | A-Award | 7,050 | $1.47 |
| Jan 3, 2025 | Lask Alisa · director | A-Award | 7,050 | $1.47 |
| Jan 3, 2025 | Amron Arthur H · director | A-Award | 7,050 | $1.47 |
| May 30, 2024 | Amron Arthur H · director | Purchase | 2,000 | $2.22 |
| May 30, 2024 | Amron Arthur H · director | Purchase | 3,000 | $2.24 |
| May 16, 2024 | Banks Robert R. Jr. · director, officer: President and CEO | Purchase | 50,000 | $2.24 |
| May 16, 2024 | Banks Robert R. Jr. · director, officer: President and CEO | A-Award | 10,406 | $2.14 |
| May 16, 2024 | Harris Joseph Michael · director | A-Award | 7,323 | $2.14 |
| May 16, 2024 | Spandow Oliver J. · director | A-Award | 7,323 | $2.14 |
| May 16, 2024 | Amron Arthur H · director | A-Award | 7,323 | $2.14 |
| May 16, 2024 | Lask Alisa · director | A-Award | 7,323 | $2.14 |
| Mar 14, 2024 | Amron Arthur H · director | Purchase | 7,000 | $2.45 |
| Dec 15, 2023 | Lask Alisa · director | A-Award | 9,291 | $0.00 |
| Dec 15, 2023 | Amron Arthur H · director | A-Award | 9,291 | $0.00 |
| Dec 15, 2023 | Harris Joseph Michael · director | A-Award | 9,291 | $0.00 |
Institutional positioning
13F filings over the trailing two quarters
New 3Increased 8Reduced 9Sold out 26
| Filer | Action | Shares | Filed |
|---|---|---|---|
| WEXFORD CAPITAL LP | Reduced | 3,600,552 | May 15, 2026 |
| TOPLINE CAPITAL MANAGEMENT, LLC | Reduced | 581,967 | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 198,643 | May 15, 2026 |
| CORNERSTONE CAPITAL, INC. | New Position | 128,700 | May 12, 2026 |
| BARD ASSOCIATES INC | Reduced | 121,202 | May 8, 2026 |
| MESIROW FINANCIAL INVESTMENT MANAGEMENT, INC. | Increased | 120,000 | Apr 21, 2026 |
| MORGAN STANLEY | Increased | 110,915 | May 15, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 99,400 | May 14, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 72,925 | May 15, 2026 |
| HIGHTOWER ADVISORS, LLC | Unchanged | 59,710 | May 5, 2026 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | Unchanged | 38,984 | May 11, 2026 |
| VANGUARD FIDUCIARY TRUST CO | New Position | 36,901 | May 8, 2026 |
| BLAIR WILLIAM & CO/IL | Unchanged | 36,249 | May 8, 2026 |
| CITADEL ADVISORS LLC | Increased | 29,044 | Sep 2, 2026 |
| DE LISLE PARTNERS LLP | Unchanged | 25,000 | May 13, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Aug 20, 2026