StockData
NEPHNasdaqSurgical & Medical Instruments & ApparatusFiscal year ends December 31

NEPHROS INC

Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 10, 2026
$3.68+0.03 (+0.82%)

Close on Oct 19, 2026

Market cap
$40.89M
P/E (TTM)
23.0
Dividend yield
–

Ownership

Institutional holdings as of Jun 30, 2026, from 13F filings

Held by institutions
48.9%
5M of 11M shares
Institutional holders
33
7 new, 1 sold out
Net institutional buying
-0M
In Q2 2026
Insider trades, 12 months
0 buys · 0 sales
Open-market trades only

Shares held by institutions

Holders of more than 5%

Latest Schedule 13D (active) or 13G (passive) filed by each holder

HolderShares% of classFilingAs of
Charles E. Davidson616,9455.68%13G (passive)Sep 14, 2026
Topline Capital Management, LLC595,3345.60%13G (passive)Aug 4, 2025

Top institutional holders

13F holdings as of Jun 30, 2026

HolderShares% of NEPHValueChange% of portfolio
Wexford Capital LP3,600,55233.15%$12.85M–1.64%
Topline Capital Management, LLC535,6984.93%$1.91M−46,2690.50%
Vanguard Capital Management LLC198,6431.83%$709.16K–0.00%
Morgan Stanley128,9151.19%$460.23K+18,0000.00%
Cornerstone Capital, Inc.128,7001.19%$459.46K–0.04%
Bard Associates Inc118,0031.09%$421.27K−3,1990.09%
Renaissance Technologies LLC77,5040.71%$276.69K−21,8960.00%
Geode Capital Management, LLC70,2630.65%$250.92K−2,6620.00%
Mesirow Financial Investment Management, Inc.60,0000.55%$214.20K−60,0000.00%
HighTower Advisors, LLC59,7100.55%$213.17K–0.00%
Navellier & Associates Inc53,4790.49%$190.92K+34,3530.02%
Essex Investment Management Co LLC38,9270.36%$138.97K−570.02%
Vanguard Fiduciary Trust Co36,9010.34%$131.74K–0.00%
Blair William & Co/Il36,2490.33%$129.41K–0.00%
Citadel Advisors LLC29,0440.27%$103.69K+8,1560.00%
Dimensional Fund Advisors LP22,1640.20%$79.13K+1,4190.00%
BlackRock, Inc.18,8220.17%$67.20KNew0.00%
De Lisle Partners LLP17,4000.16%$62.12K−7,6000.01%
Northern Trust Corp16,7060.15%$59.64K+5,8780.00%
State Street Corp15,6980.14%$56.04K–0.00%

Institutional buying and selling by quarter

Positions opened, added to, reduced and closed by 13F filers

QuarterHoldersShares held% of sharesNew / addedReduced / closedShares boughtShares sold
Q2 2026335M48.9%7 / 79 / 10M0M
Q1 2026275M49.4%3 / 69 / 101M0M
Q4 2025355M48.8%14 / 115 / 30M0M
Q3 2025245M46.2%4 / 49 / 10M0M
Q2 2025215M44.7%4 / 85 / 10M0M
Q1 2025185M43.0%1 / 55 / 10M0M
Q4 2024185M43.4%3 / 27 / 20M0M
Q3 2024174M39.5%0 / 56 / 20M0M
Q2 2024194M39.9%4 / 56 / 30M0M
Q1 2024184M39.4%3 / 83 / 30M0M
Q4 2023184M40.2%4 / 62 / 00M0M
Q3 2023144M39.5%1 / 33 / 30M0M

Top mutual fund and ETF holders

Latest monthly portfolio reports (Form N-PORT)

FundShares% of NEPHValue% of fundAs of
Vanguard Total Stock Market Index Fund130,9011.21%$467.32K0.00%Jun 30, 2026
Vanguard Extended Market Index Fund67,7420.62%$241.84K0.00%Jun 30, 2026
Fidelity Extended Market Index Fund33,7070.31%$123.37K0.00%May 31, 2026
iShares Micro-Cap ETF17,7420.16%$63.34K0.00%Jun 30, 2026
Fidelity Total Market Index Fund11,5710.11%$42.35K0.00%May 31, 2026
Fidelity Series Total Market Index Fund9,5280.09%$34.87K0.00%May 31, 2026
Dimensional U.S. Core Equity 2 ETF4,8110.04%$16.31K0.00%Jul 31, 2026
U.S. Sustainability Core 1 Portfolio3,3370.03%$11.31K0.00%Jul 31, 2026
Fidelity Nasdaq Composite Index Fund3,0850.03%$11.29K0.00%May 31, 2026
U.S. Core Equity 2 Portfolio2,7250.03%$9.24K0.00%Jul 31, 2026
Dimensional US Core Equity 1 ETF2,4620.02%$8.35K0.00%Jul 31, 2026
U.S. Core Equity 1 Portfolio2,3330.02%$7.91K0.00%Jul 31, 2026
U.S. Social Core Equity 2 Portfolio2,3320.02%$7.91K0.00%Jul 31, 2026
U.S. Vector Equity Portfolio1,4190.01%$4.81K0.00%Jul 31, 2026
1290 VT Micro Cap Portfolio1,0800.01%$3.86K0.00%Jun 30, 2026

Officers, directors and major owners

People who filed Forms 3, 4 or 5 in the last two years

NameRoleShares owned% of sharesLatest filing
Robert R. Banks Jr.President and CEO190,0001.75%Mar 25, 2026
Judy KrandelChief Financial Officer68,8610.63%Mar 25, 2026
Holdings LLC AmronDirector187,0051.72%Sep 16, 2026
Arthur H. AmronDirector140,8741.30%Sep 16, 2026
Lisa Marie NettisDirector1,6220.01%Nov 13, 2025
Oliver J. SpandowDirector122,8811.13%Nov 13, 2025
Alisa LaskDirector48,6290.45%Jan 3, 2025
Joseph Michael HarrisDirector17,6930.16%Jan 3, 2025
GP LLC Wexford10% owner245,4372.26%Sep 16, 2026
Joseph Jacobs10% owner30,047,742276.68%Sep 16, 2026
Capital Lp Wexford10% owner3,650,52933.61%Sep 16, 2026
Charles E. Davidson10% owner3,608,66733.23%Sep 16, 2026

Insider trades

Common stock transactions reported on Form 4, newest first

InsiderDateTransactionSharesPriceValueShares after
Holdings LLC Amron
Director
Sep 14, 2026Other+22,710$3.95$89.70K25,546
Holdings LLC Amron
Director
Sep 14, 2026Other+17,749––158,623
Holdings LLC Amron
Director
Sep 14, 2026Other+2,836––2,836
GP LLC Wexford
10% owner
Sep 14, 2026Other−3,355,111––189,377
GP LLC Wexford
10% owner
Sep 14, 2026Other−22,710$3.95$89.70K166,667
Joseph Jacobs
10% owner
Aug 18, 2026Option exercise+812$3.60$2.92K56,872
Arthur H. Amron
Director
Aug 12, 2026Award+2,418––140,874
Arthur H. Amron
Director
May 11, 2026Award+3,574––138,456
Judy Krandel
Chief Financial Officer
Mar 23, 2026Option exercise+68,861$1.71$117.75K68,861
Robert R. Banks Jr.
President and CEO
Mar 23, 2026Option exercise+120,000$1.44$172.80K190,000
Arthur H. Amron
Director
Mar 16, 2026Award+3,610––134,882
Lisa Marie Nettis
Director
Nov 10, 2025Award+1,622––1,622
Arthur H. Amron
Director
Nov 10, 2025Award+5,391––131,272
Oliver J. Spandow
Director
Nov 10, 2025Award+8,036––122,881
Arthur H. Amron
Director
Jan 1, 2025Award+22,418––125,881
Oliver J. Spandow
Director
Jan 1, 2025Award+33,241––114,845
Arthur H. Amron
Director
May 30, 2024Buy+3,000$2.24$6.72K103,463
Arthur H. Amron
Director
May 28, 2024Buy+2,000$2.22$4.44K100,463
Robert R. Banks Jr.
President and CEO, Director
May 16, 2024Buy+50,000$2.24$112.00K70,000
Arthur H. Amron
Director
Mar 13, 2024Other+91,463––98,463
GP LLC Wexford
10% owner
Mar 13, 2024Other−91,463––56,060
Arthur H. Amron
Director
Mar 12, 2024Buy+7,000$2.45$17.15K7,000
Oliver J. Spandow
Director
Dec 13, 2023Award+14,294––81,604
Arthur H. Amron
Director
Dec 13, 2023Award+9,291––9,291
Joseph Michael Harris
Director
Dec 13, 2023Award+9,291––17,693
Alisa Lask
Director
Dec 13, 2023Award+9,291––48,629
Robert R. Banks Jr.
President and CEO, Director
Dec 7, 2023Buy+18,000$2.20$39.60K20,000
Robert R. Banks Jr.
President and CEO, Director
Aug 15, 2023Buy+1,901$1.69$3.21K2,000
Robert R. Banks Jr.
President and CEO, Director
Aug 14, 2023Buy+99$1.50$14999
Oliver J. Spandow
Director
Jan 5, 2023Award+42,481––67,310
Tom Gwydir
Director
Jan 5, 2023Award+27,613––43,226
Alisa Lask
Director
Jan 5, 2023Award+27,613––39,338
Joseph Michael Harris
Director
Jan 5, 2023Award+8,402––8,402
Arthur H. Amron
Director
Jan 5, 2023Award+27,613––27,613
Andrew Astor
President, CEO & CFO, Director
Mar 5, 2022Option exercise+14,815$2.70$40.00K92,773
Wesley S. Lobo
Chief Marketing Officer
Feb 16, 2022Tax withholding−6,389$4.80$30.67K35,168
Tom Gwydir
Director
Dec 14, 2021Award+4,582––15,613
Arthur H. Amron
Director
Dec 14, 2021Award+4,582––4,582
Alisa Lask
Director
Dec 14, 2021Award+4,582––11,725
Oliver J. Spandow
Director
Dec 14, 2021Award+5,429––24,829
Wesley S. Lobo
Chief Marketing Officer
Aug 20, 2021Buy+1,000$7.92$7.92K41,557
Tom Gwydir
Director
Aug 18, 2021Buy+5,000$7.64$38.20K11,031
Andrew Astor
President & CEO, Director
Aug 18, 2021Buy+2,500$7.77$19.43K77,958
Andrew Astor
President & CEO, Director
Aug 17, 2021Buy+2,500$7.67$19.18K75,458
Capital Lp Wexford
Director, 10% owner
Jun 1, 2021Option exercise+66,667$2.70$180.00K3,544,492
Daron Evans
CEO Specialty Renal Products
May 27, 2021Tax withholding−349$2.70$9428,669
Daron Evans
CEO Specialty Renal Products
May 27, 2021Tax withholding−349$2.70$9428,947
Daron Evans
CEO of Specialty Renal Product
May 24, 2021Option exercise+1,111$2.70$3.00K9,018
Daron Evans
CEO of Specialty Renal Product
May 24, 2021Option exercise+1,111$2.70$3.00K9,296
Wesley S. Lobo
Chief Marketing Officer
Feb 16, 2021Award+40,557––40,557
GP LLC Wexford
Director, 10% owner
Jan 27, 2021Option exercise+2,956$4.14$12.24K97,795
GP LLC Wexford
Director, 10% owner
Jan 27, 2021Option exercise+3,765$3.60$13.55K101,560
GP LLC Wexford
Director, 10% owner
Jan 27, 2021Option exercise+4,477$4.50$20.15K106,037
GP LLC Wexford
Director, 10% owner
Jan 27, 2021Option exercise+3,556$4.59$16.32K94,839
Arthur H. Amron
Director
Jan 6, 2021Award+3,666––3,666
Alisa Lask
Director
Jan 6, 2021Award+3,666––7,143
Malcolm C. Persen
Director
Jan 6, 2021Award+5,921––48,774
Tom Gwydir
Director
Jan 6, 2021Award+3,666––6,031
Oliver J. Spandow
Director
Jan 6, 2021Award+3,666––19,400
Charles E. Davidson
Director, 10% owner
Jan 6, 2021Award+3,196––3,196

Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.