Nephros Ownership | Who Owns Nephros?

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Nephros Ownership Summary

Nephros is owned by 44.69% institutional investors, 12.87% insiders, and 42.45% retail investors. Wexford capital lp is the largest institutional shareholder, holding 34.15% of NEPH shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 1.25% of its assets in Nephros shares.

NEPH Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Nephros	44.69%	12.87%	42.45%
Sector	Healthcare Stocks	57.39%	9.93%	32.68%
Industry	Medical Instruments & Supplies Stocks	46.11%	12.95%	40.94%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Wexford capital lp	3.60M	34.15%	$5.28M
Topline capital management	419.89K	3.98%	$617.23K
Vanguard group	201.99K	1.92%	$294.91K
Bard associates	155.27K	1.47%	$228.25K
Geode capital management	84.85K	0.80%	$123.91K
Hightower advisors	55.71K	0.53%	$81.89K
Elkhorn partners limited partnership	41.43K	0.39%	$61.00K
Ubs group	40.21K	0.38%	$59.11K
Blair william & co/il	36.25K	0.34%	$53.29K
Susquehanna group, llp	23.80K	0.23%	$34.75K

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Wexford capital lp	3.60M	0.84%	$5.28M
Topline capital management	419.89K	0.12%	$617.23K
Bard associates	155.27K	0.08%	$228.25K
Elkhorn partners limited partnership	41.43K	0.04%	$61.00K
Mesirow financial investment management	13.80K	0.00%	$20.29K
Blair william & co/il	36.25K	0.00%	$53.29K
Tower research capital llc (trc)	2.60K	0.00%	$3.82K
Hightower advisors	55.71K	0.00%	$81.89K
Bank of america corp /de/	76.00	-	$160.00
Susquehanna group, llp	23.80K	-	$34.75K

Top Buyers

Holder	Shares	% Assets	Change
Topline capital management	419.89K	0.12%	419.89K
Ubs group	40.21K	-	40.09K
Susquehanna group, llp	23.80K	-	23.80K
Citadel advisors	11.85K	-	11.85K
Elkhorn partners limited partnership	41.43K	0.04%	4.99K

Top Sellers

Holder	Shares	% Assets	Change
Renaissance	-	-	-24.44K
Bard associates	155.27K	0.08%	-17.10K
Dimensional fund advisors lp	-	-	-14.88K
Granite investment partners	-	-	-13.97K
Two sigma securities	-	-	-11.62K

New Positions

Holder	Shares	% Assets	Change	Value
Topline capital management	419.89K	0.12%	419.89K	$617.23K
Susquehanna group, llp	23.80K	-	23.80K	$34.75K
Citadel advisors	11.85K	-	11.85K	$25.00K

Sold Out

Holder	Change
Newedge advisors	-36.00
Wells fargo & company/mn	-73.00
Two sigma securities	-11.62K
Granite investment partners	-13.97K
Dimensional fund advisors lp	-14.88K

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2024	17	-	4,711,852	9.97%	44	2.71%	4	-20.00%	7	16.67%
Sep 30, 2024	17	-5.56%	4,284,771	-0.82%	40	2.40%	5	-37.50%	6	20.00%
Jun 30, 2024	18	-	4,320,368	1.31%	41	2.51%	8	-27.27%	5	66.67%
Mar 31, 2024	18	-	4,264,479	-1.55%	40	2.36%	11	10.00%	3	50.00%
Dec 31, 2023	18	28.57%	4,331,833	1.00%	41	2.39%	10	150.00%	2	-33.33%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard Total Stock Mkt Idx Inv	131.82K	1.25%	2.16K
Vanguard US Total Market Shares ETF	129.66K	1.22%	-
Vanguard Institutional Extnd Mkt Idx Tr	72.34K	0.69%	-
Fidelity Extended Market Index	52.97K	0.50%	-337.00
Fidelity Series Total Market Index	13.24K	0.12%	-465.00
Fidelity Total Market Index	8.14K	0.08%	-
Northern Trust Extended Eq Market Idx	7.07K	0.07%	-
NT Ext Equity Mkt Idx Fd - L	7.07K	0.07%	-
Spartan Extended Market Index Pool E	5.73K	0.05%	337.00
Spartan Extended Market Index Pool F	5.73K	0.05%	337.00

Recent Insider Transactions

Date	Name	Role	Activity	Value
May 28, 2024	Amron Arthur H	-	Buy	$4.44K
May 30, 2024	Amron Arthur H	-	Buy	$6.73K
May 16, 2024	Banks Robert R. Jr.	President and CEO	Buy	$112.05K
Mar 12, 2024	Amron Arthur H	-	Buy	$17.13K
Dec 07, 2023	Banks Robert R. Jr.	President and CEO	Buy	$39.65K

Insider Transactions Trends

Date	Buy	Sell
2025 Q1	-	-
2024 Q2	3	-
2024 Q1	1	-
2023 Q4	1	-
2023 Q3	2	-

NEPH Ownership FAQ

Who Owns Nephros?

Nephros shareholders are primarily institutional investors at 44.69%, followed by 12.87% insiders and 42.44% retail investors. The average institutional ownership in Nephros's industry, Medical Instruments & Supplies Stocks, is 46.11%, which Nephros falls below.

Who owns the most shares of Nephros?

Nephros’s largest shareholders are Wexford capital lp (3.6M shares, 34.15%), Topline capital management (419.89K shares, 3.98%), and Vanguard group (201.99K shares, 1.92%). Together, they hold 40.05% of Nephros’s total shares outstanding.

Does Blackrock own Nephros?

BlackRock is not among the top 10 institutional shareholders of Nephros.

Who is Nephros’s biggest shareholder by percentage of total assets invested?

Wexford capital lp is Nephros’s biggest shareholder by percentage of total assets invested, with 0.84% of its assets in 3.6M Nephros shares, valued at 5.28M$.

Who is the top mutual fund holder of Nephros shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Nephros shares, with 1.25% of its total shares outstanding invested in 131.82K Nephros shares.

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