SOUTH ORANGE, NJ
NEPHROS INCNEPH— Latest position per institution from SEC 13F filings
15
Institutional holders
5.62M
Total shares held
17.12M
Estimated value
281.07K
Avg. position size
WEXFORD CAPITAL LP
CIK 1048462
Shares
3.60M
Value
10.73M
Filed
Mar 31, 2026
TOPLINE CAPITAL MANAGEMENT, LLC
CIK 1792549
Shares
581.97K
Value
1.73M
Filed
Mar 31, 2026
VANGUARD GROUP INC
CIK 102909
Shares
233.64K
Value
1.14M
Filed
Dec 31, 2025
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
198.64K
Value
591.96K
Filed
Mar 31, 2026
CORNERSTONE CAPITAL, INC.
CIK 819535
Shares
128.70K
Value
383.53K
Filed
Mar 31, 2026
BARD ASSOCIATES INC
CIK 1105907
Shares
121.20K
Value
361.18K
Filed
Mar 31, 2026
MESIROW FINANCIAL INVESTMENT MANAGEMENT, INC.
CIK 1469475
Shares
120K
Value
357.60K
Filed
Mar 31, 2026
MORGAN STANLEY
CIK 895421
Shares
110.92K
Value
330.53K
Filed
Mar 31, 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 1037389
Shares
99.40K
Value
296.21K
Filed
Mar 31, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
72.92K
Value
217.38K
Filed
Mar 31, 2026
CAMBRIDGE INVESTMENT RESEARCH ADVISORS, INC.
CIK 1419186
Shares
69.15K
Value
337.00
Filed
Dec 31, 2025
HIGHTOWER ADVISORS, LLC
CIK 1462245
Shares
59.71K
Value
177.94K
Filed
Mar 31, 2026
ESSEX INVESTMENT MANAGEMENT CO LLC
CIK 201772
Shares
38.98K
Value
116.17K
Filed
Mar 31, 2026
VANGUARD FIDUCIARY TRUST CO
CIK 933478
Shares
36.90K
Value
109.97K
Filed
Mar 31, 2026
BLAIR WILLIAM & CO/IL
CIK 902367
Shares
36.25K
Value
108.02K
Filed
Mar 31, 2026
DE LISLE PARTNERS LLP
CIK 2011184
Shares
25K
Value
74.50K
Filed
Mar 31, 2026
QUADRATURE CAPITAL LTD
CIK 1651424
Shares
23K
Value
112.26K
Filed
Dec 31, 2025
MARSHALL WACE, LLP
CIK 1318757
Shares
21.98K
Value
107.28K
Filed
Dec 31, 2025
XTX TOPCO LTD
CIK 1828301
Shares
21.62K
Value
105.49K
Filed
Dec 31, 2025
CITADEL ADVISORS LLC
CIK 1423053
Shares
20.89K
Value
62.25K
Filed
Mar 31, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | WEXFORD CAPITAL LP | 1048462 | 3.60M | 10.73M | Mar 31, 2026 |
| 2 | TOPLINE CAPITAL MANAGEMENT, LLC | 1792549 | 581.97K | 1.73M | Mar 31, 2026 |
| 3 | VANGUARD GROUP INC | 102909 | 233.64K | 1.14M | Dec 31, 2025 |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 198.64K | 591.96K | Mar 31, 2026 |
| 5 | CORNERSTONE CAPITAL, INC. | 819535 | 128.70K | 383.53K | Mar 31, 2026 |
| 6 | BARD ASSOCIATES INC | 1105907 | 121.20K | 361.18K | Mar 31, 2026 |
| 7 | MESIROW FINANCIAL INVESTMENT MANAGEMENT, INC. | 1469475 | 120K | 357.60K | Mar 31, 2026 |
| 8 | MORGAN STANLEY | 895421 | 110.92K | 330.53K | Mar 31, 2026 |
| 9 | RENAISSANCE TECHNOLOGIES LLC | 1037389 | 99.40K | 296.21K | Mar 31, 2026 |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 72.92K | 217.38K | Mar 31, 2026 |
| 11 | CAMBRIDGE INVESTMENT RESEARCH ADVISORS, INC. | 1419186 | 69.15K | 337.00 | Dec 31, 2025 |
| 12 | HIGHTOWER ADVISORS, LLC | 1462245 | 59.71K | 177.94K | Mar 31, 2026 |
| 13 | ESSEX INVESTMENT MANAGEMENT CO LLC | 201772 | 38.98K | 116.17K | Mar 31, 2026 |
| 14 | VANGUARD FIDUCIARY TRUST CO | 933478 | 36.90K | 109.97K | Mar 31, 2026 |
| 15 | BLAIR WILLIAM & CO/IL | 902367 | 36.25K | 108.02K | Mar 31, 2026 |
| 16 | DE LISLE PARTNERS LLP | 2011184 | 25K | 74.50K | Mar 31, 2026 |
| 17 | QUADRATURE CAPITAL LTD | 1651424 | 23K | 112.26K | Dec 31, 2025 |
| 18 | MARSHALL WACE, LLP | 1318757 | 21.98K | 107.28K | Dec 31, 2025 |
| 19 | XTX TOPCO LTD | 1828301 | 21.62K | 105.49K | Dec 31, 2025 |
| 20 | CITADEL ADVISORS LLC | 1423053 | 20.89K | 62.25K | Mar 31, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.