Stock

Nephros Inc

NEPH · held by 35 managers

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025

Reported value

$25.5M

Holders

+0 new · −1 exited

Holders’ est. mark

$298

Price effect on 2 books still in the name

Largest holder

$17.7M

WEXFORD CAPITAL LP

Notable conviction

Share of each notable manager’s 13F book.

Renaissance Technologies0.0% · $506.4K
Citadel0.0% · $101.1K
State Street0.0% · $76.6K
Vanguard0.0% · $1.14M

Holder count by quarter

Q3 2025 Q4 2025 Q1 2026

Who holds it

Notable only

Investor	Shares	Value	Est. mark	Change
WEXFORD CAPITAL LP	3.62M	$17.7M	—	Held
Topline Capital Management, LLC	614.3K	$3M	—	Held
Vanguard	233.6K	$1.14M	—	Held
BARD ASSOCIATES INC	121.6K	$593.5K	—	Held
Renaissance Technologies	103.8K	$506.4K	—	Held
GEODE CAPITAL MANAGEMENT, LLC	74.6K	$364.3K	—	Held
HighTower Advisors, LLC	59.7K	$291.4K	—	Held
Mesirow Financial Investment Management, Inc.	50K	$244K	—	Held
ESSEX INVESTMENT MANAGEMENT CO LLC	39K	$190.2K	—	Held
BLAIR WILLIAM & CO/IL	36.2K	$176.9K	—	Held
NAVELLIER & ASSOCIATES INC	27.2K	$132.6K	—	Held
De Lisle Partners LLP	25K	$122K	—	Held
Quadrature Capital Ltd	23K	$112.3K	—	Held
MARSHALL WACE, LLP	22K	$107.3K	—	Held
XTX Topco Ltd	21.6K	$105.5K	—	Held
Citadel	20.7K	$101.1K	—	Held
GOLDMAN SACHS GROUP INC	19K	$92.6K	—	Held
MORGAN STANLEY	18K	$87.6K	$287	Added$78.6K
State Street	15.7K	$76.6K	—	Held
PRELUDE CAPITAL MANAGEMENT, LLC	15.2K	$74.1K	—	Held
DIMENSIONAL FUND ADVISORS LP	13.6K	$66.4K	—	Held
Heron Bay Capital Management	13.5K	$65.7K	—	Held
Cannell & Spears LLC	11K	$53.7K	—	Held
Centiva Capital, LP	10.8K	$52.9K	—	Held
NORTHERN TRUST CORP	10.8K	$52.8K	—	Held
ELKHORN PARTNERS LIMITED PARTNERSHIP	7K	$34.2K	—	Held
Kestra Advisory Services, LLC	6.01K	$29.4K	—	Held
OSAIC HOLDINGS, INC.	1.63K	$7.93K	—	Held
ROYAL BANK OF CANADA	738	$4K	—	Held
SageView Advisory Group, LLC	590	$2.88K	—	Held
BANK OF AMERICA CORP /DE/	73	$356	$11	Cut−$79
Cambridge Investment Research Advisors, Inc.	69.1K	$337	—	Held
HARBOUR INVESTMENTS, INC.	50	$244	—	Held
JONES FINANCIAL COMPANIES LLLP	31	$151	—	Held
NewEdge Advisors, LLC	27	$132	—	Held

Who left

BARCLAYS PLC$501

Positions as of Q4 2025. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.