NephrosNEPH
13F holders, Q2 2026 (June 30)At the end of Q2 2026, 33 institutions reported holding Nephros Inc. (NEPH) in their 13F filings, up 6 from Q1 2026. 7 opened new positions and 1 sold out. The largest holders were Wexford Capital LP ($12.9M), Topline Capital Management, LLC ($1.9M) and Vanguard Capital Management LLC ($709K). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Nephros Inc.
- CUSIP
- 640671400
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 7 | $116K |
| Exits | 1 | $41K |
All 13F filers, Q1 2026 → Q2 2026: 100,551 shares bought and 157,690 shares sold, net −57,139 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 33 holders
| Wexford Capital LP | 1.76% | No change | 3,600,552 | $12.9M |
| Topline Capital Management, LLC | 0.50% | Reduce -8.0% | 535,698 | $1.9M |
| Vanguard Capital Management LLC | 0.00% | No change | 198,643 | $709K |
| Morgan Stanley | 0.00% | Add +16.2% | 128,915 | $460K |
| Cornerstone Capital, Inc. | 0.04% | No change | 128,700 | $459K |
| Bard Associates Inc. | 0.09% | Reduce -2.6% | 118,003 | $421K |
| Renaissance Technologies | 0.00% | Reduce -22.0% | 77,504 | $277K |
| Geode Capital Management, LLC | 0.00% | Reduce -3.6% | 70,263 | $251K |
| Mesirow Financial Investment Management, Inc. | 0.00% | Reduce -50.0% | 60,000 | $214K |
| HighTower Advisors, LLC | 0.00% | No change | 59,710 | $213K |
| Navellier & Associates Inc. | 0.02% | Add +179.6% | 53,479 | $191K |
| Essex Investment Management Co. LLC | 0.02% | Reduce -0.1% | 38,927 | $139K |
| Vanguard Fiduciary Trust Co. | 0.00% | No change | 36,901 | $132K |
| Blair William & Co. | 0.00% | No change | 36,249 | $129K |
| Citadel Advisors | 0.00% | Add +39.0% | 29,044 | $104K |
| Dimensional Fund Advisors LP | 0.00% | Add +6.8% | 22,164 | $79K |
| BlackRock, Inc. | 0.00% | New | 18,822 | $67K |
| De Lisle Partners LLP | 0.01% | Reduce -30.4% | 17,400 | $62K |
| Northern Trust Corp. | 0.00% | Add +54.3% | 16,706 | $60K |
| State Street Corp. | 0.00% | No change | 15,698 | $56K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -9.4% | 12,836 | $46K |
| Mercer Global Advisors Inc. | 0.00% | New | 12,500 | $45K |
| Elkhorn Partners Limited Partnership | 0.03% | Reduce -8.3% | 11,000 | $39K |
| Cannell & Spears LLC | 0.00% | No change | 11,000 | $39K |
| Royal Bank of Canada | 0.00% | Add +10.7% | 827 | $3K |
| UBS Group AG | 0.00% | New | 831 | $3K |
| Jones Financial Companies LLLP | 0.00% | Add +632.3% | 227 | $819 |
| Osaic Holdings, Inc. | 0.00% | No change | 175 | $624 |
| SBI Securities Co., Ltd. | 0.00% | New | 150 | $536 |
| Northwestern Mutual Wealth Management Co. | 0.00% | New | 133 | $475 |
| Harbour Investments, Inc. | 0.00% | No change | 50 | $179 |
| Barclays PLC | 0.00% | New | 27 | $96 |
| FMR LLC | 0.00% | New | 6 | $22 |
"% of holder's portfolio" is NEPH's weight in each manager's 13F, not the share of Nephros Inc. the manager owns.