Nephros Inc
NEPH- Exchange
- Nasdaq
- Industry
- Surgical & Medical Instruments & Apparatus
- SEC CIK
- 0001196298
No open-market purchases or sales by Nephros Inc insiders were filed in the last 90 days; 33 institutions reported holding it in 13F filings for Q2 2026, worth $19.0M in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Nephros Inc as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 33
- +6 vs. Q1 2026
- Shares held
- 5.31M
- −57.1K (−1.1%) vs. Q1 2026
- Total value
- $19.0M
- +$2.96M (+18.5%) vs. Q1 2026
- New holders
- 7
- 7 more added
- Sold out
- 1
- 9 more reduced
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting NEPH on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 33 | $19.0M |
| Q1 2026 | 27 | $16.0M |
| Q4 2025 | 35 | $25.9M |
| Q3 2025 | 24 | $23.7M |
| Q2 2025 | 21 | $19.8M |
| Q1 2025 | 18 | $8.02M |
| Q4 2024 | 18 | $6.91M |
| Q3 2024 | 17 | $7.33M |
| Q2 2024 | 19 | $9.19M |
| Q1 2024 | 18 | $9.42M |
| Q4 2023 | 18 | $15.1M |
| Q3 2023 | 14 | $6.35M |
| Q2 2023 | 16 | $6.63M |
| Q1 2023 | 18 | $4.57M |
| Q4 2022 | 19 | $4.94M |
| Q3 2022 | 18 | $3.95M |
| Q2 2022 | 17 | $175.6M |
| Q1 2022 | 16 | $536.6M |
| Q4 2021 | 17 | $655.7M |
| Q3 2021 | 17 | $14.9M |
| Q2 2021 | 19 | $60.1M |
| Q1 2021 | 21 | $34.8M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Nephros Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wexford Capital LP | 3,600,552 | $12.9M | 1.76% | 00.0% | Unchanged |
| Topline Capital Management, LLC | 535,698 | $1.91M | 0.50% | −46,269−8.0% | Reduced |
| Vanguard Capital Management LLC | 198,643 | $709.2K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 128,915 | $460.2K | 0.00% | +18,000+16.2% | Added |
| Cornerstone Capital, Inc. | 128,700 | $459.5K | 0.04% | 00.0% | Unchanged |
| Bard Associates Inc | 118,003 | $421.3K | 0.09% | −3,199−2.6% | Reduced |
| Renaissance Technologies LLC | 77,504 | $276.7K | 0.00% | −21,896−22.0% | Reduced |
| Geode Capital Management, LLC | 70,263 | $250.9K | 0.00% | −2,662−3.7% | Reduced |
| Mesirow Financial Investment Management, Inc. | 60,000 | $214.2K | 0.00% | −60,000−50.0% | Reduced |
| HighTower Advisors, LLC | 59,710 | $213.2K | 0.00% | 00.0% | Unchanged |
| Navellier & Associates Inc | 53,479 | $190.9K | 0.02% | +34,353+179.6% | Added |
| Essex Investment Management Co LLC | 38,927 | $139.0K | 0.02% | −57−0.1% | Reduced |
| Vanguard Fiduciary Trust Co | 36,901 | $131.7K | 0.00% | 00.0% | Unchanged |
| Blair William & Co | 36,249 | $129.4K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 29,044 | $103.7K | 0.00% | +8,156+39.0% | Added |
| Dimensional Fund Advisors LP | 22,164 | $79.1K | 0.00% | +1,419+6.8% | Added |
| BlackRock, Inc. | 18,822 | $67.2K | 0.00% | +18,822 | New |
| De Lisle Partners LLP | 17,400 | $62.1K | 0.01% | −7,600−30.4% | Reduced |
| Northern Trust Corp | 16,706 | $59.6K | 0.00% | +5,878+54.3% | Added |
| State Street Corp | 15,698 | $56.0K | 0.00% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 12,836 | $45.8K | 0.00% | −1,327−9.4% | Reduced |
| Mercer Global Advisors Inc | 12,500 | $44.6K | 0.00% | +12,500 | New |
| Elkhorn Partners Limited Partnership | 11,000 | $39.3K | 0.03% | −1,000−8.3% | Reduced |
| Spears Abacus Advisors LLC | 11,000 | $39.3K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 827 | $3.00K | 0.00% | +80+10.7% | Added |
| UBS Group AG | 831 | $2.97K | 0.00% | +831 | New |
| Jones Financial Companies LLLP | 227 | $819 | 0.00% | +196+632.3% | Added |
| Advisor Group Holdings, Inc. | 175 | $624 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 150 | $536 | 0.00% | +150 | New |
| Northwestern Mutual Wealth Management Co | 133 | $475 | 0.00% | +133 | New |
| Harbour Investments, Inc. | 50 | $179 | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 27 | $96 | 0.00% | +27 | New |
| FMR LLC | 6 | $22 | 0.00% | +6 | New |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −13,680−100.0% | Sold out |