NEPH insider transaction filings
NEPHROS INC — 30 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-09-16. Screen NEPH transaction legs live →
Insider transaction summary — last 90 days
2026-06-24 to 2026-09-22, from the filings listed below: 4 Form 4 filings. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 8.
By insider — same window
Open-market purchase/sale legs on non-derivative securities, grouped by the filing's reporting owner(s); joint filings appear once. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Insider | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|
| WEXFORD CAPITAL LP — 10% owner & Wexford GP LLC — 10% owner & DAVIDSON CHARLES E — 10% owner & JACOBS JOSEPH — 10% owner | 2 | — | — | 4 |
| Amron Arthur H — Director & Amron Holdings LLC — Director | 1 | — | — | 3 |
| Amron Arthur H — Director | 1 | — | — | 1 |
Recent Form 4 filings — NEPHROS INC
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-16 | 4 | WEXFORD CAPITAL LP — 10% owner Wexford GP LLC — 10% owner DAVIDSON CHARLES E — 10% owner JACOBS JOSEPH — 10% owner | Other (J): 3,355,111 @ $0 · Other (J): 22,710 @ $3.95 | EDGAR |
| 2026-09-16 | 4 | Amron Arthur H — Director Amron Holdings LLC — Director | Other (J): 17,749 @ $0 · Other (J): 2,836 @ $0 · Other (J): 22,710 @ $3.95 | EDGAR |
| 2026-08-20 | 4 | WEXFORD CAPITAL LP — 10% owner Wexford GP LLC — 10% owner DAVIDSON CHARLES E — 10% owner JACOBS JOSEPH — 10% owner | Option exercise (M): 812 @ $3.60 · Option exercise (M): 3,765 (derivative) @ $0 | EDGAR |
| 2026-08-14 | 4 | Amron Arthur H — Director | Grant/award (A): 2,418 @ $0 | EDGAR |
| 2026-06-12 | 4 | Amron Arthur H — Director | Grant/award (A): 3,574 @ $0 | EDGAR |
| 2026-03-25 | 4 | Banks Robert R. Jr. — President and CEO | Option exercise (M): 120,000 @ $1.44 · Option exercise (M): 120,000 (derivative) @ $0 | EDGAR |
| 2026-03-25 | 4 | Krandel Judy — Chief Financial Officer | Option exercise (M): 68,861 @ $1.71 · Option exercise (M): 68,861 (derivative) @ $0 | EDGAR |
| 2026-03-18 | 4 | Krandel Judy — Chief Financial Officer | Grant/award (A): 4,000 (derivative) @ $0 | EDGAR |
| 2026-03-18 | 4 | Amron Arthur H — Director | Grant/award (A): 3,610 @ $0 | EDGAR |
| 2025-11-13 | 4 | Nettis Lisa Marie — Director | Grant/award (A): 1,622 @ $0 | EDGAR |
| 2025-11-13 | 4 | Spandow Oliver J. — Director | Grant/award (A): 8,036 @ $0 | EDGAR |
| 2025-11-13 | 4 | Amron Arthur H — Director | Grant/award (A): 5,391 @ $0 | EDGAR |
| 2025-08-13 | 4 | Nettis Lisa Marie — Director | Grant/award (A): 13,229 (derivative) @ $0 | EDGAR |
| 2025-03-31 | 4 | Krandel Judy — Chief Financial Officer | Grant/award (A): 54,359 (derivative) @ $0 | EDGAR |
| 2025-01-03 | 4 | Lask Alisa — Director | Grant/award (A): 7,050 (derivative) @ $0 | EDGAR |
| 2025-01-03 | 4 | Harris Joseph Michael — Director | Grant/award (A): 7,050 (derivative) @ $0 | EDGAR |
| 2025-01-03 | 4 | Spandow Oliver J. — Director | Grant/award (A): 33,241 @ $0 · Grant/award (A): 7,050 (derivative) @ $0 | EDGAR |
| 2025-01-03 | 4 | Amron Arthur H — Director | Grant/award (A): 22,418 @ $0 · Grant/award (A): 7,050 (derivative) @ $0 | EDGAR |
| 2024-05-30 | 4 | Amron Arthur H — Director | Purchase (P): 2,000 @ $2.22 · Purchase (P): 3,000 @ $2.24 | EDGAR |
| 2024-05-16 | 4 | Banks Robert R. Jr. — President and CEO, Director | Purchase (P): 50,000 @ $2.24 · Grant/award (A): 10,406 (derivative) @ $0 | EDGAR |
| 2024-05-16 | 4 | Lask Alisa — Director | Grant/award (A): 7,323 (derivative) @ $0 | EDGAR |
| 2024-05-16 | 4 | Spandow Oliver J. — Director | Grant/award (A): 7,323 (derivative) @ $0 | EDGAR |
| 2024-05-16 | 4 | Harris Joseph Michael — Director | Grant/award (A): 7,323 (derivative) @ $0 | EDGAR |
| 2024-05-16 | 4 | Amron Arthur H — Director | Grant/award (A): 7,323 (derivative) @ $0 | EDGAR |
| 2024-03-14 | 4 | Amron Arthur H — Director | Purchase (P): 7,000 @ $2.45 · Other (J): 91,463 @ $0 | EDGAR |
| 2024-03-14 | 4 | WEXFORD CAPITAL LP — 10% owner Wexford GP LLC — 10% owner DAVIDSON CHARLES E — 10% owner JACOBS JOSEPH — 10% owner | Other (J): 91,463 @ $0 | EDGAR |
| 2023-12-15 | 4 | Spandow Oliver J. — Director | Grant/award (A): 14,294 @ $0 | EDGAR |
| 2023-12-15 | 4 | Lask Alisa — Director | Grant/award (A): 9,291 @ $0 | EDGAR |
| 2023-12-15 | 4 | Harris Joseph Michael — Director | Grant/award (A): 9,291 @ $0 | EDGAR |
| 2023-12-15 | 4 | Amron Arthur H — Director | Grant/award (A): 9,291 @ $0 | EDGAR |
Recent 8-K events — NEPHROS INC
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2026-08-06 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-06-15 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-07 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-03-27 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-11-26 | 8-K | 1.01 — Entry into a Material Definitive Agreement 1.02 — Termination of a Material Definitive Agreement | EDGAR |
| 2025-08-11 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-06-16 | 8-K | 5.07 — Submission of Matters to a Vote of Security Holders | EDGAR |
| 2025-05-08 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-04-28 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers | EDGAR |
| 2025-04-01 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
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