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Nephros Inc (NEPH)

CUSIP: 640671400 | NYSE | Healthcare · Medical Instruments & Supplies | Micro Cap | 73 institutional holders

Quarters

Q3 2026Q2 2026Q1 2026Q4 2025Q3 2025
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Beneficial Ownership — 13D / 13G

Full history →

5%+ stakes reported outside the quarterly cycle. A 13D is due within five business days of the event below, so these figures lead the holders table until the filer's next 13F catches up to them.

HolderShares% of ClassChangeEvent Datevs 13F
13GCD Holding Company, LLC616,9455.7%New 5%+ stakeSep 14, 2026No 13F filer matched
13D/AWexford Capital LP223,5392.1%Newly reportedSep 14, 202676d ahead of 13F (3,600,552 sh) · −3,377,013
13GCD Holding Company, LLC616,945
5.7% of class · Sep 14, 2026New 5%+ stake
No 13F filer matched
13D/AWexford Capital LP223,539
2.1% of class · Sep 14, 2026Newly reported
76d ahead of 13F (3,600,552 sh) · −3,377,013

Institutional Holders — Q3 2026

Mesirow Financial Investment Management, Inc.60,000
0.0% of portfolio›$222.6K
Essex Investment Management Co LLC38,927
0.0% of portfolio›$144.4K
Dimensional Fund Advisors LP22,164
0.0% of portfolio›$82.2K
SBI Securities Co., Ltd.154
0.0% of portfolio›$571
Citigroup Inc1
0.0% of portfolio›$4
StyleTurnoverLocationFiled
Mesirow Financial Investment Management, Inc.
60,000$222.6K0.0%CoreLowChicago, IL2026-11-05
Essex Investment Management Co LLC
38,927$144.4K0.0%GrowthMediumBoston, MA2026-10-19
Dimensional Fund Advisors LP
22,164$82.2K0.0%IndexLowAustin, TX2026-11-04
SBI Securities Co., Ltd.
154$5710.0%Agg GrowthLowTokyo, Mexico2026-10-22
Citigroup Inc
1$40.0%CoreMediumNew York, NY2026-11-04