NEPH
NEPHROS INC
Surgical & Medical Instruments & ApparatusNasdaqNon-accelerated filer<br>Smaller reporting company
Total Trades
2
Buys
2
Sells
0
Largest Trade
$1K–$15K
Insiders
2
Institutional Funds
21
Inst. Value
$1M+
Activist Filings
5
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Amron Arthur H | Director | BUY | $1K–$15K | 5K | $2.24 | May 30, 2024 |
| Banks Robert R. Jr. | President and CEO | BUY | $1K–$15K | 2K | $1.68 | Aug 15, 2023 |
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Institutional Ownership
13F filings as of Dec 31, 2025 · 21 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| WEXFORD CAPITAL LP | 3.6M | $1M+ | SH |
| BARD ASSOCIATES INC | 122K | $500K+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 104K | $500K+ | SH |
| Cambridge Investment Research Advisors, Inc. | 69K | $100K–$500K | SH |
| HighTower Advisors, LLC | 60K | $100K–$500K | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 58K | $100K–$500K | SH |
| Mesirow Financial Investment Management, Inc. | 50K | $100K–$500K | SH |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 39K | $100K–$500K | SH |
| VANGUARD GROUP INC | 37K | $100K–$500K | SH |
| NAVELLIER & ASSOCIATES INC | 27K | $100K–$500K | SH |
| De Lisle Partners LLP | 25K | $100K–$500K | SH |
| MARSHALL WACE, LLP | 22K | $100K–$500K | SH |
| GOLDMAN SACHS GROUP INC | 19K | $50K–$100K | SH |
| MORGAN STANLEY | 18K | $50K–$100K | SH |
| STATE STREET CORP | 16K | $50K–$100K | SH |
| Heron Bay Capital Management | 13K | $50K–$100K | SH |
| DIMENSIONAL FUND ADVISORS LP | 13K | $50K–$100K | SH |
| Centiva Capital, LP | 11K | $50K–$100K | SH |
| Kestra Advisory Services, LLC | 6K | $15K–$50K | SH |
| HARBOUR INVESTMENTS, INC. | 50 | <$1K | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
Topline Capital Management, LLC
SC 13G · Nov 14, 2025
5.6%
595K shares
SC 13G · Feb 3, 2023
0.0%
0 shares
Intelligent Fanatics Capital Management, LLC (EIN 83-1916631) Ian Cassel
SC 13G/A · Jan 6, 2023
0.0%
0 shares
Intelligent Fanatics Capital Management, LLC (EIN 83-1916631) Ian Cassel
SC 13G · Feb 28, 2022
5.1%
525K shares
Cowen Prime Advisors, a division of Cowen Prime Services LLC
SC 13G · Feb 10, 2022
0.0%
0 shares