// company-profile
Nephros Inc
NEPHExchangeNasdaqSectorSurgical & Medical Instruments & ApparatusInc.DEFilings29Insiders11
// api This Nephros Inc insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
// 90-day insight
Over the last 90 days, Nephros Inc insiders bought $0 across 1 transaction with no open-market sales.
- Most active insider: Amron Arthur H with 1 transaction totaling $0.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Nephros Inc as of 2026-03-31
Total reported AUM
$15.9M
QoQ change
-37.8%
Reporting period
2026-03-31
#1
WEXFORD CAPITAL LP
CIK 1048462
$10.7M
3.6M shares
#2
Topline Capital Management, LLC
CIK 1792549
$1.7M
582K shares
#3
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
$591,956
199K shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| May 11, 2026 | Amron Arthur H | NEPH | Award | 3,574 | $0.00 | $0K |
| Mar 23, 2026 | Krandel Judy | NEPH | Option Exercise | 68,861 | $1.71 | $118K |
| Mar 23, 2026 | Krandel Judy | NEPH | Option Exercise | 68,861 | $0.00 | $0K |
| Mar 23, 2026 | Banks Robert R. Jr. | NEPH | Option Exercise | 120,000 | $1.44 | $173K |
| Mar 23, 2026 | Banks Robert R. Jr. | NEPH | Option Exercise | 120,000 | $0.00 | $0K |
32 more transactions hidden
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