Nephros's top three insider shareholders as of September 29, 2026 are Robert R. Jr. Banks (President And Ceo, 190.00K shares), Arthur H Amron (Director, 184.17K shares), Capital Lp Wexford (TenPercentOwner, 166.67K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Arthur H Amron | Director | 257,086 | 25,546 | 282,632 | 26.4% | 16 Sep, 2026 |
| 2 | Robert R. Jr. Banks | President And Ceo | 190,000 | 0 | 190,000 | 17.8% | 25 Mar, 2026 |
| 3 | Capital Lp Wexford | TenPercentOwner | 0 | 166,667 | 166,667 | 15.6% | 16 Sep, 2026 |
| 4 | Oliver J. Spandow | Director | 122,881 | 0 | 122,881 | 11.5% | 13 Nov, 2025 |
| 5 | Andrew Astor | President, Ceo Cfo | 92,773 | 0 | 92,773 | 8.7% | 07 Mar, 2022 |
| 6 | Judy Krandel | Chief Financial Officer | 68,861 | 0 | 68,861 | 6.4% | 25 Mar, 2026 |
| 7 | Alisa Lask | Director | 48,629 | 0 | 48,629 | 4.5% | 15 Dec, 2023 |
| 8 | Tom Gwydir | Director | 43,226 | 0 | 43,226 | 4.0% | 09 Jan, 2023 |
| 9 | Wesley S. Lobo | Chief Marketing Officer | 35,168 | 0 | 35,168 | 3.3% | 18 Feb, 2022 |
| 10 | Joseph Michael Harris | Director | 17,693 | 0 | 17,693 | 1.7% | 15 Dec, 2023 |
| 11 | Lisa Marie Nettis | Director | 1,622 | 0 | 1,622 | 0.2% | 13 Nov, 2025 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 18 Aug, 2026 | Capital Lp Wexford | TenPercentOwner | Acquired M | 812 | $3.60 | $2.92K | 56,872 | Direct |
| 18 Aug, 2026 | Capital Lp Wexford | TenPercentOwner | Disposed M | 3,765 | $0.00 | $0 | 36,198 | Direct |
| 12 Aug, 2026 | Arthur H Amron | Director | Acquired A | 2,418 | $0.00 | $0 | 140,874 | Direct |
| 11 May, 2026 | Arthur H Amron | Director | Acquired A | 3,574 | $0.00 | $0 | 138,456 | Direct |
| 23 Mar, 2026 | Judy Krandel | Chief Financial Officer | Acquired M | 68,861 | $1.71 | $117.75K | 68,861 | Direct |
| 23 Mar, 2026 | Robert R. Jr. Banks | President And Ceo | Acquired M | 120,000 | $1.44 | $172.80K | 190,000 | Direct |
| 23 Mar, 2026 | Robert R. Jr. Banks | President And Ceo | Disposed M | 120,000 | $0.00 | $0 | 237,165 | Direct |
| 23 Mar, 2026 | Judy Krandel | Chief Financial Officer | Disposed M | 68,861 | $0.00 | $0 | 53,663 | Direct |
| 16 Mar, 2026 | Arthur H Amron | Director | Acquired A | 3,610 | $0.00 | $0 | 134,882 | Direct |
| 16 Mar, 2026 | Judy Krandel | Chief Financial Officer | Acquired A | 4,000 | $0.00 | $0 | 4,000 | Direct |
| 10 Nov, 2025 | Arthur H Amron | Director | Acquired A | 5,391 | $0.00 | $0 | 131,272 | Direct |
| 10 Nov, 2025 | Oliver J. Spandow | Director | Acquired A | 8,036 | $0.00 | $0 | 122,881 | Direct |
| 10 Nov, 2025 | Lisa Marie Nettis | Director | Acquired A | 1,622 | $0.00 | $0 | 1,622 | Direct |
| 11 Aug, 2025 | Lisa Marie Nettis | Director | Acquired A | 13,229 | $0.00 | $0 | 13,229 | Direct |
| 27 Mar, 2025 | Judy Krandel | Chief Financial Officer | Acquired A | 54,359 | $0.00 | $0 | 54,359 | Direct |
| 01 Jan, 2025 | Oliver J. Spandow | Director | Acquired A | 33,241 | $0.00 | $0 | 114,845 | Direct |
| 01 Jan, 2025 | Arthur H Amron | Director | Acquired A | 22,418 | $0.00 | $0 | 125,881 | Direct |
| 01 Jan, 2025 | Arthur H Amron | Director | Acquired A | 7,050 | $0.00 | $0 | 7,050 | Direct |
| 01 Jan, 2025 | Joseph Michael Harris | Director | Acquired A | 7,050 | $0.00 | $0 | 7,050 | Direct |
| 01 Jan, 2025 | Alisa Lask | Director | Acquired A | 7,050 | $0.00 | $0 | 7,050 | Direct |