Fennec Pharmaceuticals Inc.
FENC- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001211583
In the last 90 days, Fennec Pharmaceuticals Inc. insiders filed 0 open-market purchases and 4 sales; 105 institutions reported holding it in 13F filings for Q2 2026, worth $175.1M in total; no superinvestor holds it.
Holders of 5% or more of FENC
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Fennec Pharmaceuticals Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Rosalind Advisors, Inc. | 13G/A | 9.60%3.32M shares | +0.80 ppfrom 8.80% | Nov 13, 20254 filings | Aug 13, 2026 | SEC |
| Sonic Fund II, L.P. | 13G/A | 8.20%2.80M shares | – | Feb 16, 20213 filings | Feb 17, 2026 | SEC |
| Hirschman Orin | 13G/A | 7.10%2.50M shares | +1.40 ppfrom 5.70% | Apr 28, 20262 filings | Oct 19, 2026 | SEC |
| Solas Capital Management, LLC | 13G/A | 5.40%1.89M shares | −1.80 ppfrom 7.20% | Feb 14, 20245 filings | Aug 14, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
23 Schedule 13D and 13G filings on Fennec Pharmaceuticals Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Oct 19, 20268:13 AM ET | Hirschman Orinand 1 other | 13G/A | 7.10%2.50M shares | +1.40 ppfrom 5.70% | Sep 30, 2026 | SEC |
| Aug 14, 20264:05 PM ET | Southpoint Capital Advisors LPand 5 others | 13G/A | 0.00%0 shares | −8.00 ppfrom 8.00%Below 5% | Jun 30, 2026 | SEC |
| Aug 14, 202610:38 AM ET | Solas Capital Management, LLCand 1 other | 13G/A | 5.40%1.89M shares | −1.80 ppfrom 7.20% | Jun 30, 2026 | SEC |
| Aug 13, 202610:31 AM ET | Rosalind Advisors, Inc.and 3 others | 13G/A | 9.60%3.32M shares | +0.80 ppfrom 8.80% | Jun 30, 2026 | SEC |
| May 15, 202610:58 AM ET | Solas Capital Management, LLCand 1 other | 13G/A | 7.20%2.48M shares | −1.00 ppfrom 8.20% | Mar 31, 2026 | SEC |
| May 14, 20262:50 PM ET | Rosalind Advisors, Inc.and 3 others | 13G/A | 8.80%3.04M shares | −1.00 ppfrom 9.80% | Mar 31, 2026 | SEC |
| Apr 28, 20264:15 PM ET | Hirschman Orinand 1 other | 13G | 5.70%1.98M shares | New | Mar 31, 2026 | SEC |
| Feb 17, 202610:39 AM ET | Sonic Fund II, L.P.and 2 others | 13G/A | 8.20%2.80M shares | – | Dec 31, 2025 | SEC |
| Feb 11, 20261:58 PM ET | Rosalind Advisors, Inc.and 3 others | 13G/A | 9.80%2.75M shares | +2.30 ppfrom 7.50% | Dec 31, 2025 | SEC |
| Jan 14, 20265:00 PM ET | Southpoint Capital Advisors LPand 5 others | 13G/A | 8.00%2.74M shares | – | Dec 31, 2025 | SEC |
| Nov 13, 20254:08 PM ET | Rosalind Advisors, Inc.and 3 others | 13G | 7.50%2.08M shares | New | Sep 30, 2025 | SEC |
| Feb 14, 20251:00 PM ET | Solas Capital Management, LLCand 1 other | 13G/A | 8.20%2.25M shares | +1.20 ppfrom 7.00% | Dec 31, 2024 | SEC |
| Feb 14, 202512:06 PM ET | DG Capital Management, LLCand 2 others | 13G/A | 4.10%1.11M shares | –Below 5% | Dec 31, 2024 | SEC |
| Nov 14, 20241:58 PM ET | Solas Capital Management, LLCand 1 other | 13G/A | 7.00%1.92M shares | – | Sep 30, 2024 | SEC |
| Nov 12, 2024 | DG Capital Management, LLC | 13G/AOld format | – | – | – | SEC |
| Jun 27, 2024 | DG Capital Management, LLC | 13GOld format | – | New | – | SEC |
| Feb 14, 2024 | Solas Capital Management, LLC | 13GOld format | – | New | – | SEC |
| Feb 14, 2023 | Sonic GP LLC | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2022 | Sonic Fund II, L.P. | 13G/AOld format | – | – | – | SEC |
| Feb 11, 2022 | Avoro Capital Advisors LLC | 13G/AOld format | – | – | – | SEC |
| Feb 16, 2021 | Sonic Fund II, L.P. | 13GOld format | – | New | – | SEC |
| Feb 12, 2021 | Southpoint Capital Advisors LP | 13G/AOld format | – | – | – | SEC |
| Feb 12, 2021 | Avoro Capital Advisors LLC | 13G/AOld format | – | – | – | SEC |
Form 144: proposed insider sales
60 notices from officers, directors and other affiliates planning to sell Fennec Pharmaceuticals Inc. shares, newest first.
| Filed (ET) | Seller | Shares to sell | Market value | Planned sale | Broker | Filing |
|---|---|---|---|---|---|---|
| Sep 15, 20264:06 PM ET | Marco BrugheraDirector | 15.5K | $160.1K | Sep 15, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Sep 1, 20264:13 PM ET | Rostislav RaykovFormer director | 10.0K | $121.2K | Sep 1, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Aug 31, 20264:07 PM ET | Pierre S SayadOfficer | 12.0K | $146.2K | Aug 31, 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Aug 27, 20264:20 PM ET | Robert AndradeOfficer | 75.0K | $883.9K | Aug 27, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Aug 3, 20265:05 PM ET | Rostislav RaykovFormer director | 10.0K | $95.8K | Aug 3, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Jul 1, 20264:29 PM ET | Rostislav RaykovDirector | 9.60K | $100.0K | Jul 1, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Jun 1, 20264:14 PM ET | Rostislav RaykovDirector | 9.75K | $93.8K | Jun 1, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| May 11, 20264:16 PM ET | Chris A RallisDirector | 8.35K | $58.8K | May 11, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| May 1, 20264:15 PM ET | Rostislav RaykovDirector | 10.8K | $69.8K | May 1, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Apr 1, 20264:38 PM ET | Rostislav RaykovDirector | 10.9K | $69.1K | Apr 1, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Mar 2, 20265:07 PM ET | Rostislav RaykovDirector | 10.1K | $84.4K | Mar 2, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Feb 2, 20264:32 PM ET | Rostislav RaykovDirector | 10.3K | $80.3K | Feb 2, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Jan 2, 20264:19 PM ET | Rostislav RaykovDirector | 10.3K | $78.5K | Jan 2, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Dec 5, 20255:13 PM ET | Rostislav RaykovDirector | 10.0K | $75.4K | Dec 5, 202510b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Nov 5, 20254:28 PM ET | Rostislav RaykovDirector | 10.0K | $81.1K | Nov 5, 202510b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Oct 10, 20254:02 PM ET | Chris A RallisDirector | 1.77K | $16.4K | Oct 10, 202510b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Oct 6, 20254:27 PM ET | Rostislav RaykovDirector | 10.0K | $97.9K | Oct 6, 202510b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Sep 4, 20254:37 PM ET | Rostislav RaykovDirector | 10.0K | $89.2K | Sep 4, 202510b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Aug 5, 20254:14 PM ET | Rostislav RaykovDirector | 10.0K | $80.9K | Aug 5, 202510b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Jul 3, 20252:01 PM ET | Rostislav RaykovDirector | 10.0K | $86.1K | Jul 3, 202510b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Jun 5, 20254:31 PM ET | Rostislav RaykovDirector | 10.0K | $77.8K | Jun 5, 202510b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| May 16, 20255:21 PM ET | Raykov RostyDirector | 16.7K | $100.2K | May 16, 2025 | Morgan Stanley Smith Barney LLC Executive Services | SEC |
| May 5, 20254:01 PM ET | Rostislav RaykovDirector | 10.0K | $63.1K | May 5, 202510b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Apr 4, 20254:12 PM ET | Rostislav RaykovDirector | 10.0K | $52.5K | Apr 4, 202510b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Mar 5, 20254:29 PM ET | Rostislav RaykovDirector | 10.0K | $67.9K | Mar 5, 202510b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
Showing the latest 25. See the FENC notices from the last 12 months