ZYMEZymeworks Inc.
$25.80+59% 1Y
$25.80
$16.1652 weeks$31.05
Who owns ZYME
200 institutions reported holding ZYME for 2026Q2, together 91% of the company, fewer than the 210 a quarter earlier.
200
Institutions reporting a position · as of 2026Q2 · down from 210 the quarter before
- Shares held by institutions
- 68.3M
Shares held by institutions · 91% of the company · long US equity positions only, as reported on Form 13F
- Reported value
- $1.78B
Reported value · at Jun 30, 2026 prices, not today's
- Top 5 holders
- 56%
Top 5 holders · of the whole company, between five filers
Details›
- Reporting quarter2026-06-30
- 2026Q2
- Quarters on record
- 37
- New positions
- 23
- Positions exited
- 33
- Added to
- 55
- Reduced
- 67
- Top 10 holdersof the company
- 68%
- Shares sold shortsettled Sep 15, 2026
- 4.9M
- Short interestof shares outstanding
- 6.6%
- Days to coverat the average daily volume
- 8.0
- Change in the short positionsince the Aug 31, 2026 count
- +4.5%
| Quarter | Filers | Shares | Reported value |
|---|---|---|---|
| 2026Q2 | 200 | 68.3M | $1.78B |
| 2026Q1 | 210 | 70.2M | $1.76B |
| 2025Q4 | 205 | 71.4M | $1.88B |
| 2025Q3 | 180 | 73.7M | $1.26B |
| 2025Q2 | 179 | 75.6M | $949M |
| 2025Q1 | 181 | 70.5M | $840M |
| 2024Q4 | 170 | 66.4M | $972M |
| 2024Q3 | 160 | 66.6M | $835M |
| 2024Q2 | 162 | 68.2M | $580M |
| 2024Q1 | 169 | 67.7M | $712M |
| 2023Q4 | 156 | 64.8M | $673M |
| 2023Q3 | 138 | 62.3M | $395M |
| 2023Q2 | 136 | 63.4M | $548M |
| 2023Q1 | 113 | 56.6M | $512M |
| 2022Q4 | 95 | 57.2M | $450M |
| 2022Q3 | 91 | 47.8M | $294M |
| Holder | Shares | % of company | Value |
|---|---|---|---|
| EcoR1 Capital, LLC | 23.0M | 31% | $600M |
| Rubric Capital Management LP | 7.0M | 9.4% | $183M |
| BlackRock Inc. | 4.3M | 5.7% | $111M |
| PERCEPTIVE ADVISORS LLC | 4.2M | 5.6% | $109M |
| BVF INC/IL | 3.6M | 4.9% | $95M |
| MORGAN STANLEY | 2.2M | 3.0% | $58M |
| VANGUARD GROUP INC | 2.2M | 2.9% | $57M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1.8M | 2.4% | $47M |
| Assenagon Asset Management S.A. | 1.3M | 1.7% | $33M |
| Nextech Invest Ltd. | 1.1M | 1.5% | $29M |
| Settlement | Shares short | Of shares outstanding | Days to cover |
|---|---|---|---|
| Sep 15, 2026 | 4.9M | 6.6% | 8.0 |
| Aug 31, 2026 | 4.7M | 6.3% | 5.7 |
| Aug 14, 2026 | 4.5M | 6.1% | 8.5 |
| Jul 31, 2026 | 4.1M | 5.5% | 10.9 |
| Jul 15, 2026 | 4.1M | 5.5% | 7.6 |
| Jun 30, 2026 | 4.4M | 5.8% | 6.2 |
| Jun 15, 2026 | 4.5M | 6.0% | 5.6 |
| May 29, 2026 | 4.5M | 6.1% | 7.6 |
| May 15, 2026 | 4.5M | 6.0% | 6.6 |
| Apr 30, 2026 | 4.6M | 6.2% | 8.4 |
| Apr 15, 2026 | 4.7M | 6.2% | 7.0 |
| Mar 31, 2026 | 4.5M | 6.0% | 8.1 |
SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.
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