Nephros, Inc.

NasdaqCM:NEPH Stock Report

Market Cap: US$52.4m

Nephros Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of NEPH?
Owner TypeNumber of SharesOwnership Percentage
Hedge Funds595,3345.6%
Individual Insiders1,371,82812.9%
General Public4,240,78739.9%
Institutions4,418,73441.6%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 59.96% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
34%
Wexford Capital LP
3,617,033US$17.8m0.25%2.67%
5.6%
Topline Capital Management, LLC
595,334US$2.9m-0.16%0.45%
4.04%
Sandra Pessin
429,435US$2.1m0%no data
3.24%
Norman Pessin
344,134US$1.7m0%no data
2.65%
The Vanguard Group, Inc.
281,306US$1.4m-13%no data
1.24%
Arthur Amron
131,272US$647.2k4.28%no data
1.2%
Bard Associates Inc.
127,121US$626.7k-3.05%0.18%
1.16%
Oliver Spandow
122,881US$605.8k7%no data
1%
Andrew Astor
106,470US$524.9k0%no data
0.94%
Brian Pessin
99,692US$491.5k0%no data
0.78%
Renaissance Technologies LLC
82,500US$406.7k657%no data
0.71%
Geode Capital Management, LLC
75,891US$374.1k-18.6%no data
0.66%
Robert Banks
70,000US$345.1k0%no data
0.52%
HighTower Advisors, LLC
55,710US$274.7k-0.3%no data
0.46%
Alisa Lask
48,629US$239.7k0%no data
0.34%
William Blair Investment Management, LLC
36,249US$178.7k0%no data
0.23%
Essex Investment Management Company, LLC
24,822US$122.4k0%0.02%
0.18%
The Goldman Sachs Group, Inc.
18,643US$91.9k0%no data
0.17%
Joseph Harris
17,693US$87.2k0%no data
0.16%
Citadel Advisors LLC
16,545US$81.6k39.2%no data
0.15%
State Street Global Advisors, Inc.
15,698US$77.4k0%no data
0.14%
XTX Markets Limited
14,555US$71.8k0%no data
0.13%
Mesirow Financial Investment Management, Inc.
13,800US$68.0k0%no data
0.13%
Dimensional Fund Advisors LP
13,601US$67.1k-8.56%no data
0.12%
Elkhorn Partners LP
12,500US$61.6k-13.8%0.04%

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2025/12/29 12:03
End of Day Share Price 2025/12/26 00:00
Earnings2025/09/30
Annual Earnings2024/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Nephros, Inc. is covered by 3 analysts. 2 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
Robert WassermanBenchmark Company
Marc WiesenbergerB. Riley Securities, Inc.
Anthony VendettiMaxim Group