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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: $3.88
Price Change: ▲ Price Increase of +0.11 (2.92%)
As of 02/24/2026 05:00 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  
8/14/2023Robert R Jr. BanksCEOBuy99$1.50$148.5099View SEC Filing Icon  
See Full Table

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.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Nephros Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
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
5/11/2022Bard Associates Inc.246,408$1.08M0.4%+6.0%2.388%Search for SEC Filing on Google Icon
5/10/2022Elkhorn Partners Limited Partnership23,712$0.10M0.1%+56.0%0.230%Search for SEC Filing on Google Icon
5/2/2022Cowen Prime Advisors LLC80,400$0.35M0.1%-87.3%0.780%Search for SEC Filing on Google Icon
2/19/2022Wexford Capital LP3,650,529$646.53M27.0%N/A35.674%Search for SEC Filing on Google Icon
2/14/2022Elkhorn Partners Limited Partnership15,200$90K0.1%+78.8%0.149%Search for SEC Filing on Google Icon
2/8/2022Cowen Prime Advisors LLC633,050$3.74M1.3%-4.1%6.186%Search for SEC Filing on Google Icon
2/8/2022Samjo Capital LLC425,000$2.51M1.7%-22.7%4.153%Search for SEC Filing on Google Icon
11/9/2021BlackRock Inc.18,079$0.16M0.0%-23.0%0.177%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: $3.88
Low: $3.77
High: $4.00

50 Day Range

MA: $4.52
Low: $3.76
High: $5.41

52 Week Range

Now: $3.88
Low: $1.39
High: $6.42

Volume

32,840 shs

Average Volume

50,748 shs

Market Capitalization

$41.24 million

P/E Ratio

29.85

Dividend Yield

N/A

Beta

1.4

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

Nephros' top insider shareholders include:
  1. Arthur H Amron (Director)
  2. Robert R Jr Banks (CEO)
Learn More about top insider investors at Nephros.

Who are the major institutional investors of Nephros?

Nephros' top institutional investors include:
  1. Bard Associates Inc. — 1.14%
  2. Renaissance Technologies LLC — 0.98%
  3. HighTower Advisors LLC — 0.56%
  4. Mesirow Financial Investment Management Inc. — 0.47%
  5. Essex Investment Management Co. LLC — 0.37%
  6. Navellier & Associates Inc. — 0.26%
Learn More about top institutional investors of Nephros stock.

Which major investors are selling Nephros stock?

In the last quarter, NEPH stock was sold by these institutional investors:
  1. Bard Associates Inc.
  2. Elkhorn Partners Limited Partnership

Which major investors are buying Nephros stock?

Within the last quarter, NEPH stock was purchased by institutional investors including:
  1. Mesirow Financial Investment Management Inc.
  2. Navellier & Associates Inc.
  3. De Lisle Partners LLP
  4. Quadrature Capital Ltd
  5. Marshall Wace LLP
  6. Renaissance Technologies LLC
  7. Essex Investment Management Co. LLC
  8. Heron Bay Capital Management
During the last year, these company insiders have bought Nephros stock:
  1. Arthur H Amron (Director)
  2. Robert R Jr Banks (CEO)
Learn More investors buying Nephros stock.