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Of the 6 tracked institutions holding NEPH, 2 have a 3-year clone track record — 2 of them beat the S&P. Average holder's clone alpha: +6.9pt. It's a gauge of who owns the name, not just how many.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
Among the 6 tracked institutional investors we monitor, NEPH (NEPHROS INC) is held with a combined value of $1.64M across 374,718 shares. The largest holder is VANGUARD GROUP INC with a position worth $1.14M. 2 funds opened new positions in the most recent quarter. 1 fund increased its holdings. 2 funds reduced their position.
Total Institutional Value
$1.64M
Total Shares Held
374,718
Institutional Holders
6
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $1.14M | 0.00% | -16.9% |
| 2 | RENAISSANCE TECHNOLOGIES LLC | $276.69K | 0.00% | -22.0% |
| 3 | CITADEL ADVISORS LLC | $103.69K | 0.00% | +39.0% |
| 4 | BlackRock, Inc. | $67.19K | 0.00% | New |
| 5 | STATE STREET CORP | $56.04K | 0.00% | - |
| 6 | FMR LLC | $22 | 0.00% | New |
As of the latest SEC 13F filings, VANGUARD GROUP INC is the largest institutional holder of NEPH with a position worth $1.14M, representing 0.00% of their portfolio. In total, 6 institutional investors hold NEPH with a combined value of $1.64M.
In the most recent quarter, 2 funds opened a new position in NEPH. Additionally, 1 increased their holdings and 2 reduced their positions.
Institutional investors hold $1.64M worth of NEPH stock across 6 positions. The largest institutional holder is VANGUARD GROUP INC with $1.14M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For NEPH, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their NEPH positions.
Last Close
$4.08
2026-08-21
YTD
-14.1%
43% of 52-week range
