Nephros Ownership | Who Owns Nephros?
Nephros Ownership Summary
Nephros is owned by 45.77% institutional investors, 11.19% insiders, and 43.03% retail investors. Wexford capital lp is the largest institutional shareholder, holding 34.04% of NEPH shares. Vanguard Institutional Extnd Mkt Idx Tr is the top mutual fund, with 1.24% of its assets in Nephros shares.
NEPH Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Nephros | 45.77% | 11.19% | 43.03% |
| Sector | Healthcare Stocks | 488.17% | 11.08% | -399.26% |
| Industry | Medical Instruments & Supplies Stocks | 56.90% | 14.82% | 28.28% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Wexford capital lp | 3.61M | 34.04% | $14.76M |
| Topline capital management | 477.45K | 4.50% | $1.95M |
| Vanguard group | 201.99K | 1.92% | $294.91K |
| Bard associates | 131.12K | 1.24% | $536.28K |
| Geode capital management | 84.85K | 0.80% | $123.91K |
| Hightower advisors | 55.71K | 0.53% | $81.89K |
| Blair william & co/il | 36.25K | 0.34% | $53.29K |
| Susquehanna group, llp | 23.80K | 0.23% | $34.75K |
| State street | 15.70K | 0.15% | $22.92K |
| Elkhorn partners limited partnership | 14.50K | 0.14% | $59.30K |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Wexford capital lp | 3.61M | 4.12% | $14.76M |
| Topline capital management | 477.45K | 0.33% | $1.95M |
| Bard associates | 131.12K | 0.17% | $536.28K |
| Elkhorn partners limited partnership | 14.50K | 0.04% | $59.30K |
| Mesirow financial investment management | 13.80K | 0.00% | $56.44K |
| Blair william & co/il | 36.25K | 0.00% | $53.29K |
| Tower research capital llc (trc) | 2.60K | 0.00% | $3.82K |
| Hightower advisors | 55.71K | 0.00% | $81.89K |
| Bank of america corp /de/ | 76.00 | - | $160.00 |
| Susquehanna group, llp | 23.80K | - | $34.75K |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Topline capital management | 477.45K | 0.33% | 55.36K |
| Susquehanna group, llp | 23.80K | - | 23.80K |
| Citadel advisors | 11.85K | - | 11.85K |
| Wexford capital lp | 3.61M | 4.12% | 7.53K |
| Bank of america corp /de/ | 76.00 | - | 76.00 |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Ubs group | - | - | -40.21K |
| Renaissance | - | - | -24.44K |
| Elkhorn partners limited partnership | 14.50K | 0.04% | -24.42K |
| Dimensional fund advisors lp | - | - | -14.88K |
| Granite investment partners | - | - | -13.97K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Susquehanna group, llp | 23.80K | - | 23.80K | $34.75K |
| Citadel advisors | 11.85K | - | 11.85K | $25.00K |
Sold Out
| Holder | Change |
|---|---|
| Jpmorgan chase | -13.00 |
| Newedge advisors | -36.00 |
| Wells fargo & company/mn | -73.00 |
| Two sigma securities | -11.62K |
| Granite investment partners | -13.97K |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2025 | 19 | 11.76% | 4,852,137 | 4.02% | 45 | 2.36% | 10 | 66.67% | 5 | - |
| Mar 31, 2025 | 17 | - | 4,665,065 | -0.99% | 44 | 2.20% | 6 | 50.00% | 5 | -28.57% |
| Dec 31, 2024 | 17 | - | 4,711,852 | 9.97% | 44 | 2.71% | 4 | -20.00% | 7 | 16.67% |
| Sep 30, 2024 | 17 | -5.56% | 4,284,771 | -0.82% | 40 | 2.40% | 5 | -37.50% | 6 | 20.00% |
| Jun 30, 2024 | 18 | - | 4,320,368 | 1.31% | 41 | 2.51% | 8 | -27.27% | 5 | 66.67% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Institutional Extnd Mkt Idx Tr | 131.33K | 1.24% | -60.29K |
| Vanguard US Total Market Shares ETF | 129.66K | 1.22% | - |
| Vanguard Total Stock Mkt Idx Inv | 129.00K | 1.22% | -2.82K |
| Fidelity Extended Market Index | 57.45K | 0.54% | -150.00 |
| Fidelity Series Total Market Index | 13.24K | 0.12% | - |
| Spartan Extended Market Index Pool F | 9.58K | 0.09% | 2.71K |
| Fidelity Total Market Index | 8.14K | 0.08% | - |
| NT Ext Equity Mkt Idx Fd - L | 7.07K | 0.07% | - |
| Northern Trust Extended Eq Market Idx | 7.07K | 0.07% | - |
| Spartan Extended Market Index Pool E | 6.19K | 0.06% | 461.00 |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| May 28, 2024 | Amron Arthur H | - | Buy | $4.44K |
| May 30, 2024 | Amron Arthur H | - | Buy | $6.73K |
| May 16, 2024 | Banks Robert R. Jr. | President and CEO | Buy | $112.05K |
| Mar 12, 2024 | Amron Arthur H | - | Buy | $17.13K |
| Dec 07, 2023 | Banks Robert R. Jr. | President and CEO | Buy | $39.65K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q3 | - | - |
| 2025 Q2 | - | - |
| 2025 Q1 | - | - |
| 2024 Q2 | 3 | - |
| 2024 Q1 | 1 | - |
NEPH Ownership FAQ
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