Nephros Inc (NEPH) Insider Ownership

Historic Insider Ownership Trends

As of April 28, 2026, Nephros's top three insider holders are Robert R. Jr. Banks (President And Ceo, 190.00K shares), Arthur H Amron (Director, 134.88K shares), Oliver J. Spandow (Director, 122.88K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Robert R. Jr. Banks President And Ceo 190,000 0 25 Mar, 2026
Arthur H Amron - 134,882 0 18 Mar, 2026
Oliver J. Spandow - 122,881 0 13 Nov, 2025
Arthur H Amron - 98,463 0 14 Mar, 2024
Andrew Astor President, Ceo Cfo 92,773 0 07 Mar, 2022
Judy Krandel Chief Financial Officer 68,861 0 25 Mar, 2026
Capital Lp Wexford - 56,060 0 14 Mar, 2024
Capital Lp Wexford - 56,060 0 14 Mar, 2024
Alisa Lask - 48,629 0 15 Dec, 2023
Tom Gwydir - 43,226 0 09 Jan, 2023
Wesley S. Lobo Chief Marketing Officer 35,168 0 18 Feb, 2022
Joseph Michael Harris - 17,693 0 15 Dec, 2023
Lisa Marie Nettis - 1,622 0 13 Nov, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
23 Mar, 2026 Judy Krandel Common Stock A 68,861 $1.71 68,861 D M
23 Mar, 2026 Robert R. Jr. Banks Common Stock A 120,000 $1.44 190,000 D M
23 Mar, 2026 Robert R. Jr. Banks Stock Option (right to buy) D 120,000 $0.00 237,165 D M
23 Mar, 2026 Judy Krandel Stock Option (right to buy) D 68,861 $0.00 53,663 D M
16 Mar, 2026 Arthur H Amron Common Stock A 3,610 $0.00 134,882 D A
16 Mar, 2026 Judy Krandel Stock Option (right to buy) A 4,000 $0.00 4,000 D A
10 Nov, 2025 Arthur H Amron Common Stock A 5,391 $0.00 131,272 D A
10 Nov, 2025 Lisa Marie Nettis Common Stock A 1,622 $0.00 1,622 D A
10 Nov, 2025 Oliver J. Spandow Common Stock A 8,036 $0.00 122,881 D A
11 Aug, 2025 Lisa Marie Nettis Stock Option (right to buy) A 13,229 $0.00 13,229 D A
27 Mar, 2025 Judy Krandel Stock Option (right to buy) A 54,359 $0.00 54,359 D A
01 Jan, 2025 Arthur H Amron Common Stock A 22,418 $0.00 125,881 D A
01 Jan, 2025 Oliver J. Spandow Common Stock A 33,241 $0.00 114,845 D A
01 Jan, 2025 Arthur H Amron Stock Option (Right to Buy) A 7,050 $0.00 7,050 D A
01 Jan, 2025 Joseph Michael Harris Stock Option (right to buy) A 7,050 $0.00 7,050 D A
01 Jan, 2025 Alisa Lask Stock Option (right to buy) A 7,050 $0.00 7,050 D A
01 Jan, 2025 Oliver J. Spandow Stock Option (Right to Buy) A 7,050 $0.00 7,050 D A
28 May, 2024 Arthur H Amron Common Stock A 2,000 $2.22 100,463 D P
30 May, 2024 Arthur H Amron Common Stock A 3,000 $2.24 103,463 D P
16 May, 2024 Robert R. Jr. Banks Common Stock A 50,000 $2.24 70,000 D P