NEPHROS INC (NEPH) is a publicly traded company in the Unknown sector. Across all available filings, 25 corporate insiders have executed 186 transactions totaling $1.7M, demonstrating a bearish sentiment with -$377.0K in net insider flow. The most recent transaction on Nov 10, 2025 involved a transaction of 5,391 shares valued at $0.
No significant insider buying has been recorded for NEPH in the recent period.
No significant insider selling has been recorded for NEPH in the recent period.
Based on recent SEC filings, insider sentiment for NEPH is bearish with an Insider Alignment Score of 39/100 and a net flow of -$377.0K. Insiders are reducing their positions, though this can be driven by factors unrelated to company outlook.
Insider trading at NEPHROS INC (NEPH) refers to stock transactions made by corporate insiders—executives, directors, and beneficial owners holding more than 10% of the company's shares. These individuals have access to material non-public information and are required by law to report their trades to the SEC within two business days. Currently, 25 insiders are actively trading NEPH stock, having executed 186 transactions in the past 90 days. The most active insider is Charles E. Davidson (Executive), who has made 6 transactions totaling $1.0M.
Get notified when executives and directors at NEPH file new Form 4 transactions
Date | Insider | Title | Type | Shares | Price | Value | Flags |
|---|---|---|---|---|---|---|---|
| Nov 10, 2025 | H. Amron Arthur | Executive | Award | 5,391 | $N/A | $0 | |
| Nov 10, 2025 | J. Spandow Oliver | Executive | Award | 8,036 | $N/A | $0 | |
| Nov 10, 2025 | Marie Nettis Lisa | Executive | Award | 1,622 | $N/A | $0 | |
| May 30, 2024 | H. Amron Arthur | Executive | Purchase | 3,000 | $2.24 | $6.7K | |
| May 28, 2024 | H. Amron Arthur | Executive | Purchase | 2,000 | $2.22 | $4.4K | |
| May 16, 2024 | R. Banks Robert Jr | Executive | Purchase | 50,000 | $2.24 | $112.0K | |
| Mar 13, 2024 | H. Amron Arthur | Executive | Other | 91,463 | $N/A | $0 | |
| Mar 13, 2024 | Llc Wexford Gp | Executive | Other | 91,463 | $N/A | $0 | |
| Mar 12, 2024 | H. Amron Arthur | Executive | Purchase | 7,000 | $2.45 | $17.1K | |
| Dec 13, 2023 | H. Amron Arthur | Executive | Award | 9,291 | $N/A | $0 | |
| Dec 13, 2023 | Michael Harris Joseph | Executive | Award | 9,291 | $N/A | $0 | |
| Dec 13, 2023 | Lask Alisa | Executive | Award | 9,291 | $N/A | $0 | |
| Dec 13, 2023 | J. Spandow Oliver | Executive | Award | 14,294 | $N/A | $0 | |
| Dec 7, 2023 | R. Banks Robert Jr | Executive | Purchase | 18,000 | $2.20 | $39.6K | |
| Aug 15, 2023 | R. Banks Robert Jr | Executive | Purchase | 1,901 | $1.69 | $3.2K |
| TYPE | COUNT | VALUE | % |
|---|---|---|---|
Sale(S) | 7 | $1.0M | 31.2% |
Award(A) | 81 | $1.0M | 30.5% |
Purchase(P) | 69 | $645.4K | 19.7% |
Other(J) | 12 | $255.0K | 7.8% |
Exercise (Options)(X) | 8 | $221.3K | 6.7% |
Exercise(M) | 5 | $102.3K | 3.1% |
Payment(F) | 3 | $32.6K | 1.0% |
Small Acquisition(L) | 1 | $12 | 0.0% |
Insider selling pressure at NEPHROS INC has increased, with 25 insiders executing 186 transactions across all time. Total sales of $1.0M significantly outpace purchases of $645.4K, resulting in a net outflow of $377.0K. This selling activity appears largely discretionary, which may warrant closer attention from investors.