Nephros Ownership | Who Owns Nephros?
Nephros Ownership Summary
Nephros is owned by 47.31% institutional investors, 11.31% insiders, and 41.38% retail investors. Wexford capital lp is the largest institutional shareholder, holding 34.12% 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 | 47.31% | 11.31% | 41.38% |
| Sector | Healthcare Stocks | 42.64% | 10.86% | 46.50% |
| Industry | Medical Instruments & Supplies Stocks | 40.77% | 13.85% | 45.38% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Wexford capital lp | 3.62M | 34.12% | $17.11M |
| Topline capital management | 596.30K | 5.63% | $2.82M |
| Vanguard group | 233.64K | 2.20% | $1.14M |
| Bard associates | 127.12K | 1.20% | $601.28K |
| Renaissance | 82.50K | 0.78% | $390.23K |
| Geode capital management | 75.89K | 0.72% | $359.06K |
| Cambridge investment research advisors | 69.15K | 0.65% | $337.00K |
| Hightower advisors | 55.71K | 0.53% | $263.51K |
| Mesirow financial investment management | 50.00K | 0.47% | $244.00K |
| Blair william & co/il | 36.25K | 0.34% | $171.46K |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Wexford capital lp | 3.62M | 2.46% | $17.11M |
| Topline capital management | 596.30K | 0.48% | $2.82M |
| Bard associates | 127.12K | 0.16% | $601.28K |
| Elkhorn partners limited partnership | 12.50K | 0.04% | $59.13K |
| Essex investment management | 24.82K | 0.02% | $117.41K |
| Navellier & associates | 27.18K | 0.01% | $132.61K |
| Mesirow financial investment management | 50.00K | 0.01% | $244.00K |
| Xtx topco | 14.55K | 0.00% | $68.84K |
| Cambridge investment research advisors | 69.15K | 0.00% | $337.00K |
| Blair william & co/il | 36.25K | 0.00% | $171.46K |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Topline capital management | 596.30K | 0.48% | 118.85K |
| Renaissance | 82.50K | 0.00% | 71.60K |
| Cambridge investment research advisors | 69.15K | 0.00% | 69.15K |
| Mesirow financial investment management | 50.00K | 0.01% | 36.20K |
| Navellier & associates | 27.18K | 0.01% | 27.18K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Vanguard group | 233.64K | - | -47.66K |
| Geode capital management | 75.89K | - | -17.30K |
| Granite investment partners | - | - | -13.97K |
| Two sigma securities | - | - | -11.62K |
| Bard associates | 127.12K | 0.16% | -4.00K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Cambridge investment research advisors | 69.15K | 0.00% | 69.15K | $337.00K |
| Navellier & associates | 27.18K | 0.01% | 27.18K | $132.61K |
| Susquehanna group, llp | 23.80K | - | 23.80K | $34.75K |
| Goldman sachs group | 18.64K | - | 18.64K | $88.18K |
| Xtx topco | 14.55K | 0.00% | 14.55K | $68.84K |
Sold Out
| Holder | Change |
|---|---|
| Jpmorgan chase | -13.00 |
| Newedge advisors | -36.00 |
| Ubs group | -66.00 |
| Wells fargo & company/mn | -73.00 |
| Tower research capital llc (trc) | -1.10K |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 30, 2025 | 23 | 15.00% | 5,015,032 | 3.35% | 47 | 2.26% | 8 | -27.27% | 8 | 60.00% |
| 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% |
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