RESEARCH TRIANGLE PARK, NC
FENNEC PHARMACEUTICALS INC.FENC— Latest position per institution from SEC 13F filings
15
Institutional holders
22.76M
Total shares held
212.07M
Estimated value
1.14M
Avg. position size
ROSALIND ADVISORS, INC.
CIK 1622627
Shares
3.19M
Value
34.27M
Filed
Jun 30, 2026
SOUTHPOINT CAPITAL ADVISORS LP
CIK 1319998
Shares
2.74M
Value
16.88M
Filed
Mar 31, 2026
AIGH CAPITAL MANAGEMENT LLC
CIK 1835943
Shares
2.49M
Value
26.72M
Filed
Jun 30, 2026
SONIC GP LLC
CIK 1964290
Shares
2.41M
Value
15.21M
Filed
Dec 31, 2024
SOLAS CAPITAL MANAGEMENT, LLC
CIK 1604867
Shares
1.89M
Value
20.31M
Filed
Jun 30, 2026
BLACKROCK, INC.
CIK 2012383
Shares
1.73M
Value
18.57M
Filed
Jun 30, 2026
AVORO CAPITAL ADVISORS LLC
CIK 1633313
Shares
1.20M
Value
13.46M
Filed
Dec 31, 2023
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
1.19M
Value
7.25M
Filed
Jun 30, 2024
AWM INVESTMENT COMPANY, INC.
CIK 1535264
Shares
1.16M
Value
12.47M
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
1.07M
Value
8.22M
Filed
Dec 31, 2025
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
839.31K
Value
9.02M
Filed
Jun 30, 2026
PROSPECT CAPITAL ADVISORS, LLC
CIK 1632368
Shares
497.80K
Value
5.35M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
426K
Value
4.58M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
402.57K
Value
4.33M
Filed
Jun 30, 2026
TANG CAPITAL MANAGEMENT LLC
CIK 1232621
Shares
334.59K
Value
3.13M
Filed
Sep 30, 2025
ESSEX INVESTMENT MANAGEMENT CO LLC
CIK 201772
Shares
318.77K
Value
3.39M
Filed
Sep 30, 2026
JANE STREET GROUP, LLC
CIK 1595888
Shares
233.88K
Value
2.51M
Filed
Jun 30, 2026
POTOMAC CAPITAL MANAGEMENT, INC.
CIK 1418746
Shares
224.40K
Value
2.41M
Filed
Jun 30, 2026
MORGAN STANLEY
CIK 895421
Shares
221.92K
Value
2.39M
Filed
Jun 30, 2026
APIS CAPITAL ADVISORS, LLC
CIK 1386892
Shares
204K
Value
1.57M
Filed
Dec 31, 2025
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | ROSALIND ADVISORS, INC. | 1622627 | 3.19M | 34.27M | Jun 30, 2026 |
| 2 | SOUTHPOINT CAPITAL ADVISORS LP | 1319998 | 2.74M | 16.88M | Mar 31, 2026 |
| 3 | AIGH CAPITAL MANAGEMENT LLC | 1835943 | 2.49M | 26.72M | Jun 30, 2026 |
| 4 | SONIC GP LLC | 1964290 | 2.41M | 15.21M | Dec 31, 2024 |
| 5 | SOLAS CAPITAL MANAGEMENT, LLC | 1604867 | 1.89M | 20.31M | Jun 30, 2026 |
| 6 | BLACKROCK, INC. | 2012383 | 1.73M | 18.57M | Jun 30, 2026 |
| 7 | AVORO CAPITAL ADVISORS LLC | 1633313 | 1.20M | 13.46M | Dec 31, 2023 |
| 8 | BLACKROCK FINANCE, INC. | 1364742 | 1.19M | 7.25M | Jun 30, 2024 |
| 9 | AWM INVESTMENT COMPANY, INC. | 1535264 | 1.16M | 12.47M | Jun 30, 2026 |
| 10 | VANGUARD GROUP INC | 102909 | 1.07M | 8.22M | Dec 31, 2025 |
| 11 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 839.31K | 9.02M | Jun 30, 2026 |
| 12 | PROSPECT CAPITAL ADVISORS, LLC | 1632368 | 497.80K | 5.35M | Jun 30, 2026 |
| 13 | STATE STREET CORP | 93751 | 426K | 4.58M | Jun 30, 2026 |
| 14 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 402.57K | 4.33M | Jun 30, 2026 |
| 15 | TANG CAPITAL MANAGEMENT LLC | 1232621 | 334.59K | 3.13M | Sep 30, 2025 |
| 16 | ESSEX INVESTMENT MANAGEMENT CO LLC | 201772 | 318.77K | 3.39M | Sep 30, 2026 |
| 17 | JANE STREET GROUP, LLC | 1595888 | 233.88K | 2.51M | Jun 30, 2026 |
| 18 | POTOMAC CAPITAL MANAGEMENT, INC. | 1418746 | 224.40K | 2.41M | Jun 30, 2026 |
| 19 | MORGAN STANLEY | 895421 | 221.92K | 2.39M | Jun 30, 2026 |
| 20 | APIS CAPITAL ADVISORS, LLC | 1386892 | 204K | 1.57M | Dec 31, 2025 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.