Nephros
NEPH
33 hedge funds and large institutions have $19M invested in Nephros in 2026 Q2 according to their latest regulatory filings, with 7 funds opening new positions, 7 increasing their positions, 9 reducing their positions, and 1 closing their positions.
600% more first-time investments, than exits
New positions opened: 7 | Existing positions closed: 1
22% more funds holding
Funds holding: 27 → 33 (+6)
19% more capital invested
Capital invested by funds: $16M → $19M (+$2.96M)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
1.51% less ownership
Funds ownership: 50.45% → 48.94% (-1.5%)
22% less repeat investments, than reductions
Existing positions increased: 7 | Existing positions reduced: 9
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
NA
Navellier & Associates
Reno,
Nevada
|
+$112K |
| 2 |
BlackRock
New York
|
+$61.2K |
| 3 |
Morgan Stanley
New York
|
+$58.5K |
| 4 |
Mercer Global Advisors
Denver,
Colorado
|
+$40.6K |
| 5 |
Citadel Advisors
Miami,
Florida
|
+$26.5K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
MFIM
Mesirow Financial Investment Management
Chicago,
Illinois
|
-$195K |
| 2 |
TCM
Topline Capital Management
Santa Monica,
California
|
-$150K |
| 3 |
Renaissance Technologies
New York
|
-$71.2K |
| 4 |
PCM
Prelude Capital Management
New York
|
-$40.8K |
| 5 |
DLP
De Lisle Partners
Poole,
United Kingdom
|
-$24.7K |
NEPH Hedge Fund Activity: Q2 2026 in Review
33 of the 8,320 institutional investors tracked by Wall St. Rank reported a position in Nephros (NEPH) for Q2 2026, worth a combined $19M — up 19% from $16M a quarter earlier.
Buyers outnumbered sellers: 7 funds opened new NEPH positions and 1 closed out — a net gain of 6 holders — while 7 added to existing stakes and 9 trimmed.
The largest buyer was Navellier & Associates, adding an estimated $112K. The largest seller was Mesirow Financial Investment Management, cutting an estimated $195K.
- 33 institutional investors held Nephros (NEPH) as of Q2 2026, up from 27 in Q1 2026.
- Funds reported $19M of Nephros stock for Q2 2026, up 19% quarter-over-quarter.
- 7 funds opened new Nephros positions in Q2 2026 and 1 closed out, a net change of +6 holders.
- The largest Nephros buyer in Q2 2026 was Navellier & Associates, an estimated $112K added.
- The largest Nephros seller in Q2 2026 was Mesirow Financial Investment Management, an estimated $195K sold.
Based on aggregated 13F filings for Q2 2026.