NEPHROS INC (NEPH) Institutional Ownership Changes & 13F Activity

NEPHROS INC (NEPH). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q4 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Wexford Capital Lp, Topline Capital Management, Llc, Bard Associates Inc, Geode Capital Management, Llc, and Hightower Advisors, Llc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Newedge Advisors, LlcBuy+27—27$132.00Q4 2025Feb 18, 2026
Topline Capital Management, LlcBuy+614,302—614,302$3.00MQ4 2025Feb 17, 2026
Blair William & Co/IlBuy+36,249—36,249$176.90KQ4 2025Feb 17, 2026
Quadrature Capital LtdBuy+23,004—23,004$112.26KQ4 2025Feb 17, 2026
Xtx Topco LtdBuy+21,617—21,617$105.49KQ4 2025Feb 17, 2026
Citadel Advisors LlcBuy+20,710—20,710$101.06KQ4 2025Feb 17, 2026
Prelude Capital Management, LlcBuy+15,180—15,180$74.08KQ4 2025Feb 17, 2026
Cannell & Spears LlcBuy+11,000—11,000$53.68KQ4 2025Feb 17, 2026
Northern Trust CorpBuy+10,828—10,828$52.84KQ4 2025Feb 17, 2026
Elkhorn Partners Limited PartnershipBuy+7,000—7,000$34.16KQ4 2025Feb 17, 2026
Osaic Holdings, Inc.Buy+1,625—1,625$7.93KQ4 2025Feb 17, 2026
Royal Bank Of CanadaBuy+738—738$4.00KQ4 2025Feb 17, 2026
Bank Of America CorpBuy+73—73$356.00Q4 2025Feb 17, 2026
Jones Financial Companies LllpBuy+31—31$151.00Q4 2025Feb 17, 2026
Wexford Capital LpBuy+3,617,033—3,617,033$17.65MQ4 2025Feb 13, 2026
Bard Associates IncBuy+121,619—121,619$593.50KQ4 2025Feb 13, 2026
Essex Investment Management Co LlcBuy+38,984—38,984$190.24KQ4 2025Feb 13, 2026
De Lisle Partners LlpBuy+25,000—25,000$122.00KQ4 2025Feb 13, 2026
Marshall Wace, LlpBuy+21,983—21,983$107.28KQ4 2025Feb 13, 2026
Morgan StanleyBuy+17,959—17,959$87.64KQ4 2025Feb 13, 2026
State Street CorpBuy+15,698—15,698$76.61KQ4 2025Feb 13, 2026
Heron Bay Capital ManagementBuy+13,471—13,471$65.74KQ4 2025Feb 13, 2026
Centiva Capital, LpBuy+10,835—10,835$52.88KQ4 2025Feb 13, 2026
Kestra Advisory Services, LlcBuy+6,015—6,015$29.35KQ4 2025Feb 13, 2026
Renaissance Technologies LLCBuy+21,272+25.8%103,772$506.41KQ4 2025Feb 12, 2026
Dimensional Fund Advisors LpBuy+13,601—13,601$66.37KQ4 2025Feb 12, 2026
Goldman Sachs Group IncBuy+18,980—18,980$92.62KQ4 2025Feb 10, 2026
Geode Capital Management, LlcBuy+74,628—74,628$364.28KQ4 2025Feb 09, 2026
Harbour Investments, Inc.Buy+50—50$244.00Q4 2025Feb 09, 2026
Hightower Advisors, LlcBuy+59,710—59,710$291.38KQ4 2025Feb 06, 2026
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Frequently asked questions about NEPH activity

  • Which institutional owners are buying NEPH?

    Institutional owners buying NEPH include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in NEPH activity?

    "Buy" means an investor increased their reported position in NEPH compared to the prior reporting period. This reflects growing exposure to NEPHROS INC (NEPH) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in NEPH increasing?

    Institutional interest in NEPH can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.