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NEPH Insider Trading

Insider Ownership Percentage: 6.70%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $0.00

Nephros Insider Trading History Chart

This chart shows the insider buying and selling history at Nephros by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Nephros Share Price & Price History

Current Price: $4.08
Price Change: +0.30 (1.20%)
As of 08/21/2026 04:00 PM ET

This chart shows the closing price history over time for NEPH up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Nephros Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
5/30/2024Arthur H AmronDirectorBuy3,000$2.24$6,720.00103,463View SEC Filing Icon  
5/28/2024Arthur H AmronDirectorBuy2,000$2.22$4,440.00100,463View SEC Filing Icon  
5/16/2024Robert R Jr. BanksCEOBuy50,000$2.24$112,000.0070,000View SEC Filing Icon  
12/7/2023Robert R Jr. BanksCEOBuy18,000$2.20$39,600.0020,000View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for Nephros (NASDAQ:NEPH)

41.10% of Nephros stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at NEPH by year and by quarter.

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Nephros Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/19/2026Navellier & Associates Inc.53,479$0.19M0.0%+179.6%0.492%Search for SEC Filing on Google Icon
8/12/2026De Lisle Partners LLP17,400$62K0.0%N/A0.160%Search for SEC Filing on Google Icon
8/12/2026Bard Associates Inc.118,003$0.42M0.1%N/A1.087%Search for SEC Filing on Google Icon
8/7/2026BlackRock Inc.18,822$67K0.0%N/A0.173%Search for SEC Filing on Google Icon
8/3/2026Cornerstone Capital Inc.128,700$0.46M0.0%N/A1.185%Search for SEC Filing on Google Icon
5/14/2026Renaissance Technologies LLC99,400$0.30M0.0%-4.2%0.916%Search for SEC Filing on Google Icon
5/7/2026Dimensional Fund Advisors LP20,745$62K0.0%+52.5%0.195%Search for SEC Filing on Google Icon
2/18/2026XTX Topco Ltd21,617$0.11M0.0%+48.5%0.203%Search for SEC Filing on Google Icon
2/18/2026Quadrature Capital Ltd23,004$0.11M0.0%N/A0.216%Search for SEC Filing on Google Icon
2/17/2026Elkhorn Partners Limited Partnership7,000$34K0.0%-44.0%0.066%Search for SEC Filing on Google Icon
2/16/2026Bard Associates Inc.121,619$0.59M0.2%-4.3%1.144%Search for SEC Filing on Google Icon
2/13/2026Kestra Advisory Services LLC6,015$29K0.0%N/A0.057%Search for SEC Filing on Google Icon
2/13/2026Marshall Wace LLP21,983$0.11M0.0%N/A0.207%Search for SEC Filing on Google Icon
2/13/2026Essex Investment Management Co. LLC38,984$0.19M0.0%+57.1%0.367%Search for SEC Filing on Google Icon
2/13/2026Heron Bay Capital Management13,471$66K0.0%N/A0.127%Search for SEC Filing on Google Icon
2/13/2026De Lisle Partners LLP25,000$0.12M0.0%N/A0.235%Search for SEC Filing on Google Icon
2/12/2026Renaissance Technologies LLC103,772$0.51M0.0%+25.8%0.976%Search for SEC Filing on Google Icon
2/6/2026HighTower Advisors LLC59,710$0.29M0.0%+7.2%0.562%Search for SEC Filing on Google Icon
2/5/2026Mesirow Financial Investment Management Inc.50,000$0.24M0.0%+262.3%0.470%Search for SEC Filing on Google Icon
2/3/2026Navellier & Associates Inc.27,175$0.13M0.0%N/A0.256%Search for SEC Filing on Google Icon
11/17/2025Wexford Capital LP3,617,033$17.11M2.5%+0.2%34.036%Search for SEC Filing on Google Icon
11/17/2025Susquehanna International Group LLP10,373$49K0.0%-64.7%0.098%Search for SEC Filing on Google Icon
11/17/2025Citadel Advisors LLC16,545$78K0.0%+39.2%0.156%Search for SEC Filing on Google Icon
11/17/2025Bard Associates Inc.127,121$0.60M0.2%-3.1%1.196%Search for SEC Filing on Google Icon
11/14/2025Topline Capital Management LLC596,300$2.82M0.5%+24.9%5.611%Search for SEC Filing on Google Icon
11/12/2025Dimensional Fund Advisors LP13,601$64K0.0%N/A0.128%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.281,306$1.33M0.0%-13.0%2.654%Search for SEC Filing on Google Icon
8/15/2025Topline Capital Management LLC477,449$1.95M0.3%+13.1%4.504%Search for SEC Filing on Google Icon
8/15/2025Elkhorn Partners Limited Partnership14,500$59K0.0%-62.7%0.137%Search for SEC Filing on Google Icon
8/8/2025Geode Capital Management LLC93,187$0.38M0.0%+3.2%0.879%Search for SEC Filing on Google Icon
5/12/2025Bard Associates Inc.143,221$0.25M0.1%-7.8%1.351%Search for SEC Filing on Google Icon
2/14/2025Topline Capital Management LLC419,887$0.62M0.1%N/A3.984%Search for SEC Filing on Google Icon
2/6/2025Bard Associates Inc.155,271$0.23M0.1%-9.9%1.473%Search for SEC Filing on Google Icon
8/9/2024Dimensional Fund Advisors LP17,631$37K0.0%N/A0.167%Search for SEC Filing on Google Icon
4/26/2024Mesirow Financial Investment Management Inc.15,383$34K0.0%N/A0.146%Search for SEC Filing on Google Icon
2/10/2023Bard Associates Inc.194,789$0.23M0.1%-22.7%1.887%Search for SEC Filing on Google Icon
11/15/2022Elkhorn Partners Limited Partnership50,341$46K0.0%+48.1%0.488%Search for SEC Filing on Google Icon
8/11/2022Bard Associates Inc.263,754$0.40M0.2%+7.0%2.556%Search for SEC Filing on Google Icon
8/1/2022Cowen Prime Advisors LLC42,500$65K0.0%-47.1%0.412%Search for SEC Filing on Google Icon
5/23/2022Cantor Fitzgerald L. P.12,813$56K0.0%N/A0.124%Search for SEC Filing on Google Icon
Data available starting January 2016

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Nephros logo
Nephros, Inc., a commercial-stage company, develops and sells water solutions to the medical and commercial markets in the United States. It offers ultrafiltration products that are used in dialysis centers for the removal of biological contaminants from water and bicarbonate concentrate; and in hospitals for the prevention of infection from waterborne pathogens, such as legionella and pseudomonas, as well as in military and outdoor recreation, commercial, and other healthcare facilities. The company also manufactures and sells water filters that enhance the taste and odor of water, as well as reduce biofilm, cysts, particulates, and scale build-up in downstream equipment. It markets its products to food service, hospitality, convenience store, and health care markets, as well as medical institutions. The company was incorporated in 1997 and is headquartered in South Orange, New Jersey.
Read More on Nephros

Today's Range

Now: $4.08
Low: $3.78
High: $4.42

50 Day Range

MA: $3.68
Low: $3.13
High: $4.76

52 Week Range

Now: $4.08
Low: $2.66
High: $6.42

Volume

100,708 shs

Average Volume

30,300 shs

Market Capitalization

$44.31 million

P/E Ratio

25.50

Dividend Yield

N/A

Beta

1.51

Who are the company insiders with the largest holdings of Nephros?

Nephros' top insider shareholders include:
  1. Daron Evans (Insider)
  2. Andrew Astor (CFO)
  3. Daron Evans (CEO)
  4. Arthur H Amron (Director)
  5. Andrew Astor (CEO)
  6. Robert R Jr Banks (CEO)
  7. Tom Gwydir (Director)
  8. Oliver J Spandow (Director)
  9. Wesley S Lobo (CMO)
Learn More about top insider investors at Nephros.

Who are the major institutional investors of Nephros?

Nephros' top institutional investors include:
  1. Cornerstone Capital Inc. — 1.19%
  2. Bard Associates Inc. — 1.09%
  3. Navellier & Associates Inc. — 0.49%
  4. BlackRock Inc. — 0.17%
  5. De Lisle Partners LLP — 0.16%
Learn More about top institutional investors of Nephros stock.

Which major investors are buying Nephros stock?

During the last quarter, NEPH stock was acquired by institutional investors including:
  1. Cornerstone Capital Inc.
  2. Bard Associates Inc.
  3. Navellier & Associates Inc.
  4. BlackRock Inc.
  5. De Lisle Partners LLP

Nephros Active Insiders

Andrew Astor
Andrew Astor (Age 69)
CEO
Tom Gwydir
Tom Gwydir
Director
Wesley S Lobo
Wesley S Lobo (Age 49)
CMO