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 | 487.91% | 11.08% | -398.99% |
| Industry | Medical Instruments & Supplies Stocks | 57.81% | 14.56% | 27.62% |
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 | 56.98K | 0.54% | -469.00 |
| Fidelity Series Total Market Index | 13.24K | 0.12% | - |
| Fidelity Total Market Index | 11.64K | 0.11% | 3.50K |
| Spartan Extended Market Index Pool F | 10.05K | 0.09% | 469.00 |
| Northern Trust Extended Eq Market Idx | 7.07K | 0.07% | - |
| NT Ext Equity Mkt Idx Fd - L | 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
Try Tickergate Pro Free
Customize Everything. 100% Flexibility. Fast and Easy to Use (No code or Excel Needed)
Customize your own personal stocks lists, views and charts
Choose from hundreds of fields, up to 15 years of history
Conduct deep comparison analysis
Discover trending investment themes
Find your next best investment
Research stocks using tools