NEPH · Insider trading · 13F holders · Congress trades
Nephros Inc (NEPH)
Who is buying and selling NEPH: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 3
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
NEPH at a glance
- No open-market insider purchases or sales of NEPH were filed in the last 90 days.
- 3 13F filers hold NEPH among their 50 largest positions, worth $14.8M combined. The biggest bets by portfolio weight are Wexford Capital LP (1.8%), Topline Capital Management, LLC (0.5%) and Elkhorn Partners Limited Partnership (0.0%).
- No member of Congress has disclosed a trade in NEPH.
NEPH insider trading
No open-market insider purchases or sales of NEPH were filed in the last 90 days.
Who owns NEPH? Hedge funds and superinvestors
3 13F filers hold NEPH among their 50 largest positions, worth $14.8M combined. The biggest bets by portfolio weight are Wexford Capital LP (1.8%), Topline Capital Management, LLC (0.5%) and Elkhorn Partners Limited Partnership (0.0%).
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Wexford Capital LPHedge fund | 1.8% | $12.9M | 3,600,552 | +0.0% shares | Q2 2026 |
| Topline Capital Management, LLCHedge fund | 0.5% | $1.9M | 535,698 | -8.0% shares | Q2 2026 |
| Elkhorn Partners Limited PartnershipHedge fund | 0.0% | $39K | 11,000 | -8.3% shares | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 3). Screen NEPH in the grand portfolio →
NEPH stock trades by members of Congress
No member of Congress has disclosed a trade in NEPH.
NEPH questions and answers
Are insiders buying NEPH stock?
No open-market insider purchases or sales of NEPH were filed in the last 90 days.
Which hedge funds own NEPH?
3 13F filers hold NEPH among their 50 largest positions, worth $14.8M combined. The biggest bets by portfolio weight are Wexford Capital LP (1.8%), Topline Capital Management, LLC (0.5%) and Elkhorn Partners Limited Partnership (0.0%).
Has Congress traded NEPH?
No member of Congress has disclosed a trade in NEPH.
Who is the largest holder of NEPH?
Among 13F filers, Wexford Capital LP reports the largest NEPH position, $12.9M (3,600,552 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Wexford Capital LP's: 1.8% of its portfolio.
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