NEPHROS INC (NEPH) Institutional Ownership Changes & 13F Activity
NEPHROS INC (NEPH). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q4 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Wexford Capital Lp, Topline Capital Management, Llc, Bard Associates Inc, Geode Capital Management, Llc, and Hightower Advisors, Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Newedge Advisors, Llc | Buy | +27 | — | 27 | $132.00 | Q4 2025 | Feb 18, 2026 |
| Topline Capital Management, Llc | Buy | +614,302 | — | 614,302 | $3.00M | Q4 2025 | Feb 17, 2026 |
| Blair William & Co/Il | Buy | +36,249 | — | 36,249 | $176.90K | Q4 2025 | Feb 17, 2026 |
| Quadrature Capital Ltd | Buy | +23,004 | — | 23,004 | $112.26K | Q4 2025 | Feb 17, 2026 |
| Xtx Topco Ltd | Buy | +21,617 | — | 21,617 | $105.49K | Q4 2025 | Feb 17, 2026 |
| Citadel Advisors Llc | Buy | +20,710 | — | 20,710 | $101.06K | Q4 2025 | Feb 17, 2026 |
| Prelude Capital Management, Llc | Buy | +15,180 | — | 15,180 | $74.08K | Q4 2025 | Feb 17, 2026 |
| Cannell & Spears Llc | Buy | +11,000 | — | 11,000 | $53.68K | Q4 2025 | Feb 17, 2026 |
| Northern Trust Corp | Buy | +10,828 | — | 10,828 | $52.84K | Q4 2025 | Feb 17, 2026 |
| Elkhorn Partners Limited Partnership | Buy | +7,000 | — | 7,000 | $34.16K | Q4 2025 | Feb 17, 2026 |
| Osaic Holdings, Inc. | Buy | +1,625 | — | 1,625 | $7.93K | Q4 2025 | Feb 17, 2026 |
| Royal Bank Of Canada | Buy | +738 | — | 738 | $4.00K | Q4 2025 | Feb 17, 2026 |
| Bank Of America Corp | Buy | +73 | — | 73 | $356.00 | Q4 2025 | Feb 17, 2026 |
| Jones Financial Companies Lllp | Buy | +31 | — | 31 | $151.00 | Q4 2025 | Feb 17, 2026 |
| Wexford Capital Lp | Buy | +3,617,033 | — | 3,617,033 | $17.65M | Q4 2025 | Feb 13, 2026 |
| Bard Associates Inc | Buy | +121,619 | — | 121,619 | $593.50K | Q4 2025 | Feb 13, 2026 |
| Essex Investment Management Co Llc | Buy | +38,984 | — | 38,984 | $190.24K | Q4 2025 | Feb 13, 2026 |
| De Lisle Partners Llp | Buy | +25,000 | — | 25,000 | $122.00K | Q4 2025 | Feb 13, 2026 |
| Marshall Wace, Llp | Buy | +21,983 | — | 21,983 | $107.28K | Q4 2025 | Feb 13, 2026 |
| Morgan Stanley | Buy | +17,959 | — | 17,959 | $87.64K | Q4 2025 | Feb 13, 2026 |
| State Street Corp | Buy | +15,698 | — | 15,698 | $76.61K | Q4 2025 | Feb 13, 2026 |
| Heron Bay Capital Management | Buy | +13,471 | — | 13,471 | $65.74K | Q4 2025 | Feb 13, 2026 |
| Centiva Capital, Lp | Buy | +10,835 | — | 10,835 | $52.88K | Q4 2025 | Feb 13, 2026 |
| Kestra Advisory Services, Llc | Buy | +6,015 | — | 6,015 | $29.35K | Q4 2025 | Feb 13, 2026 |
| Renaissance Technologies LLC | Buy | +21,272 | +25.8% | 103,772 | $506.41K | Q4 2025 | Feb 12, 2026 |
| Dimensional Fund Advisors Lp | Buy | +13,601 | — | 13,601 | $66.37K | Q4 2025 | Feb 12, 2026 |
| Goldman Sachs Group Inc | Buy | +18,980 | — | 18,980 | $92.62K | Q4 2025 | Feb 10, 2026 |
| Geode Capital Management, Llc | Buy | +74,628 | — | 74,628 | $364.28K | Q4 2025 | Feb 09, 2026 |
| Harbour Investments, Inc. | Buy | +50 | — | 50 | $244.00 | Q4 2025 | Feb 09, 2026 |
| Hightower Advisors, Llc | Buy | +59,710 | — | 59,710 | $291.38K | Q4 2025 | Feb 06, 2026 |
Frequently asked questions about NEPH activity
Which institutional owners are buying NEPH?
Institutional owners buying NEPH include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in NEPH activity?
"Buy" means an investor increased their reported position in NEPH compared to the prior reporting period. This reflects growing exposure to NEPHROS INC (NEPH) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in NEPH increasing?
Institutional interest in NEPH can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
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