FENNEC PHARMACEUTICALS INC FENC
COM · Common Stock · CUSIP 31447P100
- SectorHealth care
- IndustryBiological Products, (No Diagnostic Substances)
- HeadquartersResearch Triangle Park, NC
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($9.7k this quarter). Holder counts are more reliable. Shares outstanding: 35.1m as of 2026-08-11, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $10.73. Options: 2 managers hold calls ($383.8k notional), 0 hold puts (—).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 32 |
| Q4 2022 | 44 |
| Q1 2023 | 55 |
| Q2 2023 | 57 |
| Q3 2023 | 56 |
| Q4 2023 | 57 |
| Q1 2024 | 66 |
| Q2 2024 | 65 |
| Q3 2024 | 64 |
| Q4 2024 | 65 |
| Q1 2025 | 69 |
| Q2 2025 | 79 |
| Q3 2025 | 84 |
| Q4 2025 | 96 |
| Q1 2026 | 90 |
| Q2 2026 | 105 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 31 | 23 |
| Q4 2024 | 37 | 26 |
| Q1 2025 | 29 | 22 |
| Q2 2025 | 40 | 30 |
| Q3 2025 | 38 | 29 |
| Q4 2025 | 45 | 32 |
| Q1 2026 | 50 | 38 |
| Q2 2026 | 69 | 26 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $9.0k | $0 | 0.00 |
| Q4 2025 | $770 | $0 | 0.00 |
| Q1 2026 | $138.4k | $0 | 0.00 |
| Q2 2026 | $383.8k | $0 | 0.00 |
Biggest buyers
| AIGH Capital Management LLC | Added | +504.5k |
| Prospect Capital Advisors, LLC | New | +497.8k |
| AWM Investment Company, Inc. | Added | +440.2k |
| BlackRock, Inc. | Added | +358.9k |
| Rosalind Advisors, Inc. | Added | +279.8k |
| JANE STREET GROUP, LLC | New | +233.9k |
| MARSHALL WACE, LLP | New | +138.8k |
| RENAISSANCE TECHNOLOGIES LLC | New | +134.2k |
| CenterBook Partners LP | New | +118.6k |
| WELLINGTON MANAGEMENT GROUP LLP | New | +84.5k |
Biggest sellers
| Southpoint Capital Advisors LP | Sold out | -2.7m |
| Solas Capital Management, LLC | Reduced | -592.8k |
| GENDELL JEFFREY L | Sold out | -83.0k |
| CITADEL ADVISORS LLC | Reduced | -82.6k |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | -57.8k |
| Squarepoint Ops LLC | Reduced | -25.4k |
| GOLDMAN SACHS GROUP INC | Reduced | -22.2k |
| GLOBEFLEX CAPITAL L P | Sold out | -18.3k |
| HighTower Advisors, LLC | Sold out | -15.0k |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P | Reduced | -14.0k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $378.4k35.2k shares |
| SIMPLEX TRADING, LLC | Added | $5.4k500 shares |
Biggest puts
| None |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| Rosalind Advisors, Inc. 13G · exempt (held before listing) +0.8 pts · filed 2026-08-13 | 9.6% |
| Sonic Fund II, L.P. 13G · passive investor filed 2026-02-17 | 8.2% |
| HIRSCHMAN ORIN 13G · institution +1.4 pts · filed 2026-10-19 | 7.1% |
| Solas Capital Management, LLC 13G · institution -1.8 pts · filed 2026-08-14 | 5.4% |
Fell to 5% or below in the last year: Southpoint Capital Advisors LP (0.0%, 2026-08-14)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 2 | $83.0k | $71.0k |
| Q1 2025 | 0 | — | 2 | $203.4k | $203.4k |
| Q2 2025 | 1 | $104.6k | 2 | $313.4k | $200.4k |
| Q3 2025 | 0 | — | 2 | $265.9k | $265.9k |
| Q4 2025 | 0 | — | 2 | $270.6k | $270.6k |
| Q1 2026 | 0 | — | 1 | $242.9k | $242.9k |
| Q2 2026 | 0 | — | 2 | $291.3k | $291.3k |
| Q3 2026 | 0 | — | 3 | $1.2m | $1.0m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-09-15 | Brughera Marco Maria Director | Sold plan | $160.0k15.5k shares |
| 2026-09-01 | Raykov Rosty Former Director | Sold plan | $121.1k10.0k shares |
| 2026-08-31 | Sayad Pierre Sargis Chief Medical Officer | Sold | $146.2k12.0k shares |
| 2026-08-27 | Andrade Robert CHIEF FINANCIAL OFFICER | Sold plan | $883.5k75.0k shares |
| 2026-08-03 | Raykov Rosty Former Director | Sold plan | $95.8k10.0k shares |
| 2026-07-01 | Raykov Rosty Former Director | Sold plan | $99.9k9.6k shares |
| 2026-06-01 | Raykov Rosty Director | Sold plan | $93.8k9.7k shares |
| 2026-05-11 | RALLIS CHRIS A Director | Sold plan | $58.8k8.3k shares |
| 2026-05-01 | Raykov Rosty Director | Sold plan | $69.8k10.8k shares |
| 2026-04-01 | Raykov Rosty Director | Sold plan | $69.1k10.9k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| Rosalind Advisors, Inc. 12.87% of their portfolio | 3.2m $34.3m | Added +279.8k |
| AIGH Capital Management LLC 2.42% of their portfolio | 2.5m $26.7m | Added +504.5k |
| Solas Capital Management, LLC 10.88% of their portfolio | 1.9m $20.3m | Reduced -592.8k |
| BlackRock, Inc. 0.00% of their portfolio | 1.7m $18.6m | Added +358.9k |
| AWM Investment Company, Inc. 1.08% of their portfolio | 1.2m $12.5m | Added +440.2k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 839.3k $9.0m | Reduced -57.8k |
| Prospect Capital Advisors, LLC 2.43% of their portfolio | 497.8k $5.4m | New |
| STATE STREET CORP 0.00% of their portfolio | 426.0k $4.6m | Added +66.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 402.6k $4.3m | Added +30.8k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 233.9k $2.5m | New |
| Potomac Capital Management, Inc. 1.76% of their portfolio | 224.4k $2.4m | Unchanged |
| MORGAN STANLEY 0.00% of their portfolio | 221.9k $2.4m | Added +10.8k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 200.0k $2.1m | Added +31.5k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 167.9k $1.8m | Added +15.8k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 138.8k $1.5m | New |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 134.2k $1.4m | New |
| Nuveen, LLC 0.00% of their portfolio | 131.5k $1.4m | Added +70.5k |
| Trexquant Investment LP 0.01% of their portfolio | 119.1k $1.3m | Added +67.3k |
| CenterBook Partners LP 0.06% of their portfolio | 118.6k $1.3m | New |
| Lion Point Capital, LP 5.78% of their portfolio | 112.4k $1.2m | Unchanged |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 108.0k $1.2m | Added +25.0k |
| Cornerstone Capital, Inc. 0.10% of their portfolio | 105.0k $1.1m | Unchanged |
| XTX Topco Ltd 0.01% of their portfolio | 93.9k $1.0m | Added +78.6k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 92.9k $998.6k | Added +68.7k |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 84.5k $908.9k | New |
| Quadrature Capital Ltd 0.01% of their portfolio | 75.7k $814.1k | New |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 71.0k $763.6k | Reduced -82.6k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 70.5k $757.9k | Added +7.0k |
| 1492 Capital Management LLC 0.21% of their portfolio | 65.1k $700.4k | Added +14.4k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 61.0k $656.1k | Added +8.6k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 60.3k $648.6k | New |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 58.3k $626.6k | Added +28.9k |
| THOMPSON SIEGEL & WALMSLEY LLC 0.01% of their portfolio | 57.2k $615.0k | Unchanged |
| Point72 Asset Management, L.P. 0.00% of their portfolio | 56.4k $606.4k | New |
| Eleva Capital SAS 0.10% of their portfolio | 53.2k $327.4k | Unchanged |
| Hartford Financial Management Inc. 0.12% of their portfolio | 50.6k $544.4k | Unchanged |
| Round Rock Advisors LLC 0.07% of their portfolio | 48.7k $523.3k | New |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 45.4k $488.1k | Added +6.7k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 38.6k $415.0k | Reduced -4.9k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 36.7k $394.8k | Added +30.5k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 35.0k $375.9k | Added +3.7k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 33.5k $359.6k | Reduced -22.2k |
| Squarepoint Ops LLC 0.00% of their portfolio | 31.1k $334.7k | Reduced -25.4k |
| PRELUDE CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 29.6k $318.2k | Unchanged |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 28.9k $310.7k | Added +7.7k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 26.6k $285.6k | Added +15.7k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 26.3k $282.9k | New |
| JONES FINANCIAL COMPANIES LLLP 0.00% of their portfolio | 26.1k $287.1k | Added +1.1k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 25.3k $272.1k | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 23.0k $248.0k | Added +6.2k |
| Brevan Howard Capital Management LP 0.00% of their portfolio | 21.5k $230.8k | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 19.9k $214.4k | Reduced -6.5k |
| Engineers Gate Manager LP 0.00% of their portfolio | 17.9k $192.3k | Added +2.4k |
| MetLife Investment Management, LLC 0.00% of their portfolio | 16.9k $181.6k | Added +3.4k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 16.6k $101.9k | Added +6.3k |
| LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio | 16.5k $177.4k | New |
| Invesco Ltd. 0.00% of their portfolio | 15.7k $169.2k | Added +4.1k |
| CITIGROUP INC 0.00% of their portfolio | 13.6k $146.9k | Added +12.2k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 13.4k $143.7k | Reduced -249 |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 13.3k $142.5k | Added +10.4k |
| Kemnay Advisory Services Inc. 0.02% of their portfolio | 12.6k $135.3k | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 12.1k $133.9k | Added +284 |
| MASTER'S WEALTH MANAGEMENT INC. 0.04% of their portfolio | 11.6k $124.2k | New |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 10.6k $113.5k | Added +4.3k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 9.8k $104.8k | Unchanged |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P 0.06% of their portfolio | 7.5k $80.6k | Reduced -14.0k |
| State of Alaska, Department of Revenue 0.00% of their portfolio | 6.6k $70.0k | Unchanged |
| STRS OHIO 0.00% of their portfolio | 6.3k $67.7k | Added +1.1k |
| FMR LLC 0.00% of their portfolio | 5.8k $62.3k | Added +1.5k |
| UBS Group AG 0.00% of their portfolio | 4.7k $50.6k | Reduced -1.8k |
| BARCLAYS PLC 0.00% of their portfolio | 4.4k $46.8k | Reduced -1.9k |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 3.5k $37.4k | Reduced -864 |
| Legal & General Group Plc 0.00% of their portfolio | 2.7k $29.2k | Reduced -5.9k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 2.7k $29.0k | New |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 2.6k $28.3k | Added +1.1k |
| IFG Advisory, LLC 0.00% of their portfolio | 2.0k $21.5k | New |
| Arax Advisory Partners 0.00% of their portfolio | 653 $7.0k | New |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 645 $6.9k | Added +135 |
| Pinnacle Wealth Planning Services, Inc. 0.00% of their portfolio | 507 $5.5k | Unchanged |
| Integrated Wealth Concepts LLC 0.00% of their portfolio | 427 $4.6k | New |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 400 $4.3k | Reduced -1.2k |
| MassMutual Private Wealth & Trust, FSB 0.00% of their portfolio | 357 $3.8k | Unchanged |
| GAMMA Investing LLC 0.00% of their portfolio | 349 $3.8k | Added +265 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 303 $3.3k | Unchanged |
| Allworth Financial LP 0.00% of their portfolio | 274 $2.9k | Added +251 |
| Private Wealth Management Group, LLC 0.00% of their portfolio | 247 $2.7k | Reduced -150 |
| EverSource Wealth Advisors, LLC 0.00% of their portfolio | 188 $2.0k | Added +8 |
| NATIONAL BANK OF CANADA /FI/ 0.00% of their portfolio | 141 $2.2k | New |
| Smartleaf Asset Management LLC 0.00% of their portfolio | 110 $1.2k | Unchanged |
| Sterling Capital Management LLC 0.00% of their portfolio | 102 $1.1k | Reduced -642 |
| Farther Finance Advisors, LLC 0.00% of their portfolio | 95 $1.0k | Reduced -185 |
| IFP Advisors, Inc 0.00% of their portfolio | 92 $989 | Added +91 |
| Cornerstone Planning Group LLC 0.00% of their portfolio | 88 $908 | Unchanged |
| Essential Partners LLC 0.00% of their portfolio | 80 $860 | Added +42 |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 75 $806 | New |
| Hughes Financial Services, LLC 0.00% of their portfolio | 71 $763 | Unchanged |
| ROTHSCHILD INVESTMENT LLC 0.00% of their portfolio | 61 $656 | Added +42 |
| NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio | 46 $495 | Unchanged |
| TD Waterhouse Canada Inc. 0.00% of their portfolio | 29 $300 | Unchanged |
| SJS Investment Consulting Inc. 0.00% of their portfolio | 13 $140 | New |