Nephros, Inc. (NEPH) ownership: Top institutional holder: WEXFORD CAPITAL LP ($10.73M). Insider activity: Net Seller (0 buys, 6 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| WEXFORD CAPITAL LP | 3600552.00 | $10.73M | 2026-03-31 |
| Topline Capital Management, LLC | 581967.00 | $1.73M | 2026-03-31 |
| VANGUARD GROUP INC | 233644.00 | $1.14M | 2025-12-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 198643.00 | $591956.00 | 2026-03-31 |
| Cornerstone Capital, Inc. | 128700.00 | $383526.00 | 2026-03-31 |
| BARD ASSOCIATES INC | 121202.00 | $361182.00 | 2026-03-31 |
| Mesirow Financial Investment Management, Inc. | 120000.00 | $357600.00 | 2026-03-31 |
| Cambridge Investment Research Advisors, Inc. | 69149.00 | $337000.00 | 2025-12-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-03-23 | |
| Sell | null | 2026-03-23 | |
| Sell | null | 2026-03-23 | |
| Sell | null | 2026-03-23 | |
| Sell | null | 2026-03-16 | |
| Sell | null | 2026-03-16 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.