NASDAQ: NEPH
Nephros Inc Stock Ownership - Who owns Nephros?

Insider buying vs selling

Have Nephros Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Robert R. Banks Jr.President and CEO2026-03-23120,000$1.44
$172.80kBuy
Judy KrandelChief Financial Officer2026-03-2368,861$1.71
$117.75kBuy

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Net Insider Buy/Sell (L12M) Ownership

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NEPH Shareholders

What type of owners hold Nephros Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Lambda Investors LLC416.87%44,372,491$147.32MInsider
Wexford Capital LP168.94%17,982,173$59.70MInsider
Stagg Capital Group LLC35.23%3,749,558$12.45MInsider
Wexford Capital LP33.98%3,617,033$12.01MInstitution
Enso Capital Management LLC32.01%3,407,616$11.31MInsider
Matthew Rosenberg7.97%847,935$2.82MInsider
Topline Capital Management LLC5.77%614,302$2.04MInstitution
Eric A. Md Rose5.17%550,000$1.83MInsider
Southpaw Asset Management LP4.93%525,079$1.74MInsider
Vanguard Group Inc2.20%233,644$775.70kInstitution

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NEPH vs Medical Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
NEPH6.76%93.24%Net BuyingNet Buying
POCI12.50%87.50%Net BuyingNet Buying
AGPU0.07%99.93%Net SellingNet Selling
EKSO0.96%99.04%Net BuyingNet Buying
HBIO35.99%64.01%Net SellingNet Buying

Nephros Stock Ownership FAQ

Who owns Nephros?

Nephros (NASDAQ: NEPH) is owned by 49.81% institutional shareholders, 686.87% Nephros insiders, and 0.00% retail investors. Lambda Investors LLC is the largest individual Nephros shareholder, owning 44.37M shares representing 416.87% of the company. Lambda Investors LLC's Nephros shares are currently valued at $143.77M.

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