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 LLC408.72%44,372,491$156.19MInsider
Wexford Capital LP165.63%17,982,173$63.30MInsider
Stagg Capital Group LLC34.54%3,749,558$13.20MInsider
Wexford Capital LP33.32%3,617,033$12.73MInstitution
Enso Capital Management LLC31.39%3,407,616$11.99MInsider
Matthew Rosenberg7.81%847,935$2.98MInsider
Topline Capital Management LLC5.66%614,302$2.16MInstitution
Eric A. Md Rose5.07%550,000$1.94MInsider
Southpaw Asset Management LP4.84%525,079$1.85MInsider
Vanguard Group Inc2.15%233,644$822.43kInstitution

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NEPH vs Medical Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
NEPH6.76%93.24%Net BuyingNet Buying
MLSS5.62%62.91%Net Selling
POCI12.50%87.50%Net BuyingNet Buying
AGPU0.07%99.93%Net Selling
HBIO35.99%64.01%Net SellingNet Buying

Nephros Stock Ownership FAQ

Who owns Nephros?

Nephros (NASDAQ: NEPH) is owned by 48.84% institutional shareholders, 673.44% Nephros insiders, and 0.00% retail investors. Lambda Investors LLC is the largest individual Nephros shareholder, owning 44.37M shares representing 408.72% of the company. Lambda Investors LLC's Nephros shares are currently valued at $156.19M.

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