NEPHROS INC - Common Stock - $0.001 par value (NEPH) Institutional Ownership

13F Institutional Holders and Ownership History from Q3 2019 to Q4 2025

Type / Class
Equity / Common Stock - $0.001 par value
Symbol
NEPH on Nasdaq
Shares outstanding
10,630,964
Price per share
$4.48
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
5,302,280
Total reported value
$25,875,168
% of total 13F portfolios
0%
Share change
+287,248
Value change
+$1,403,304
Number of holders
35
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of NEPHROS INC - Common Stock - $0.001 par value (NEPH) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Topline Capital Management, LLC 5.6% $2,815,930 595,334 Topline Capital Management, LLC 04 Aug 2025

As of 31 Dec 2025, 35 institutional investors reported holding 5,302,280 shares of NEPHROS INC - Common Stock - $0.001 par value (NEPH). This represents 50% of the company’s total 10,630,964 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of NEPHROS INC - Common Stock - $0.001 par value (NEPH) together control 50% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
WEXFORD CAPITAL LP 34% 3,617,033 0% 4.5% $17,651,117
Topline Capital Management, LLC 5.8% 614,302 +3% 0.27% $2,997,794
VANGUARD GROUP INC 2.2% 233,644 -17% 0% $1,140,183
BARD ASSOCIATES INC 1.1% 121,619 -4.3% 0.15% $593,501
RENAISSANCE TECHNOLOGIES LLC 0.98% 103,772 +26% 0% $506,407
GEODE CAPITAL MANAGEMENT, LLC 0.7% 74,628 -1.7% 0% $364,278
Cambridge Investment Research Advisors, Inc. 0.65% 69,149 0% $337,000
HighTower Advisors, LLC 0.56% 59,710 +7.2% 0% $291,385
Mesirow Financial Investment Management, Inc. 0.47% 50,000 +262% 0.01% $244,000
ESSEX INVESTMENT MANAGEMENT CO LLC 0.37% 38,984 +57% 0.03% $190,242
BLAIR WILLIAM & CO/IL 0.34% 36,249 0% 0% $176,895
NAVELLIER & ASSOCIATES INC 0.26% 27,175 0.01% $132,614
De Lisle Partners LLP 0.24% 25,000 0.02% $122,000
Quadrature Capital Ltd 0.22% 23,004 0% $112,260
MARSHALL WACE, LLP 0.21% 21,983 0% $107,277
XTX Topco Ltd 0.2% 21,617 +49% 0% $105,491
CITADEL ADVISORS LLC 0.19% 20,710 +25% 0% $101,065
GOLDMAN SACHS GROUP INC 0.18% 18,980 +1.8% 0% $92,622
MORGAN STANLEY 0.17% 17,959 +838% 0% $87,640
STATE STREET CORP 0.15% 15,698 0% 0% $76,606
PRELUDE CAPITAL MANAGEMENT, LLC 0.14% 15,180 0.01% $74,078
DIMENSIONAL FUND ADVISORS LP 0.13% 13,601 0% 0% $66,373
Heron Bay Capital Management 0.13% 13,471 0.01% $65,738
Cannell & Spears LLC 0.1% 11,000 0% $53,680
Centiva Capital, LP 0.1% 10,835 0% $52,875

Institutional Holders of NEPHROS INC - Common Stock - $0.001 par value (NEPH) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 5,302,280 $25,875,168 +$1,403,304 $4.88 35
2025 Q3 5,015,032 $23,721,183 +$770,357 $4.73 23
2025 Q2 4,852,312 $19,846,026 +$767,466 $4.09 20
2025 Q1 4,664,676 $8,023,335 -$71,094 $1.72 17
2024 Q4 4,711,852 $6,907,601 +$947 $1.47 17
2024 Q3 4,284,771 $7,333,250 -$66,476 $1.71 17
2024 Q2 4,320,368 $9,159,330 +$116,985 $2.11 18
2024 Q1 4,264,479 $9,398,998 -$169,208 $2.19 18
2023 Q4 4,331,833 $14,986,626 +$148,381 $3.46 18
2023 Q3 4,288,960 $6,347,955 +$12,732 $1.48 14
2023 Q2 4,279,808 $6,634,282 +$34,065 $1.55 15
2023 Q1 4,273,188 $4,574,310 +$8,159 $1.07 17
2022 Q4 4,266,471 $4,940,524 -$78,172 $1.16 18
2022 Q3 4,339,484 $3,949,000 +$17,380 $0.91 17
2022 Q2 632,473 $968,000 -$108,653 $1.53 15
2022 Q1 643,171 $2,827,000 -$4,636,503 $4.39 13
2021 Q4 1,550,944 $9,151,000 -$931,227 $5.90 11
2021 Q3 1,700,497 $14,914,000 +$362,427 $8.77 13
2021 Q2 5,916,801 $60,109,000 +$672,777 $10.15 15
2021 Q1 5,231,367 $34,791,000 -$660,885 $6.65 17
2020 Q4 5,282,295 $45,322,000 +$2,352,286 $8.58 14
2020 Q3 4,474,719 $32,353,000 -$269,921 $7.23 15
2020 Q2 4,502,818 $37,780,000 +$1,367,226 $8.39 17
2020 Q1 4,170,822 $26,271,000 +$23,387,609 $6.30 18
2019 Q4 458,415 $4,562,000 +$176,424 $9.95 12
2019 Q3 258,124 $2,089,000 +$2,089,000 $8.07 7