Zymeworks Ownership | Who Owns Zymeworks?
Zymeworks Ownership Summary
Zymeworks is owned by 92.85% institutional investors, 1.27% insiders, and 5.88% retail investors. Ecor1 capital is the largest institutional shareholder, holding 30.49% of ZYME shares. HBM Healthcare Investments AG Ord is the top mutual fund, with 3.43% of its assets in Zymeworks shares.
ZYME Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Zymeworks | 92.85% | 1.27% | 5.88% |
| Sector | Healthcare Stocks | 35.58% | 11.87% | 52.55% |
| Industry | Biotech Stocks | 35.75% | 11.83% | 52.41% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Ecor1 capital | 22.97M | 30.49% | $575.18M |
| Rubric capital management lp | 7.00M | 9.29% | $175.28M |
| Blackrock funding, inc. /de | 4.55M | 6.04% | $114.03M |
| Bvf inc/il | 3.73M | 4.96% | $93.50M |
| Perceptive advisors | 3.51M | 4.66% | $87.89M |
| Morgan stanley | 2.48M | 3.29% | $62.11M |
| Vanguard group | 2.33M | 3.07% | $61.32M |
| Bnp paribas asset management | 1.91M | 2.53% | $47.78M |
| Blackstone | 1.62M | 2.15% | $27.61M |
| Citadel advisors | 1.15M | 1.53% | $28.80M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Ecor1 capital | 22.97M | 24.41% | $575.18M |
| Capricorn fund managers | 1.01M | 3.93% | $25.22M |
| Bvf inc/il | 3.73M | 2.98% | $93.50M |
| Verdad advisers, lp | 82.70K | 2.33% | $2.07M |
| Prosight management, lp | 539.05K | 2.21% | $13.50M |
| Nextech invest | 1.11M | 1.96% | $27.89M |
| Rubric capital management lp | 7.00M | 1.86% | $175.28M |
| Aquilo capital management | 84.48K | 1.80% | $1.01M |
| Perceptive advisors | 3.51M | 1.72% | $87.89M |
| Bioimpact capital | 565.25K | 1.09% | $14.15M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Rubric capital management lp | 7.00M | 1.86% | 1.25M |
| Citadel advisors | 1.15M | 0.00% | 894.67K |
| Bioimpact capital | 565.25K | 1.09% | 565.25K |
| Royce & associates lp | 299.20K | 0.07% | 299.20K |
| Perceptive advisors | 3.51M | 1.72% | 248.23K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Siren | - | - | -1.68M |
| Vestal point capital, lp | - | - | -865.00K |
| Bridgeway capital management | - | - | -766.94K |
| Deutsche bank ag\ | 921.25K | 0.01% | -674.58K |
| Adage capital partners gp | - | - | -663.55K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Bioimpact capital | 565.25K | 1.09% | 565.25K | $14.15M |
| Royce & associates lp | 299.20K | 0.07% | 299.20K | $7.49M |
| Axa investment managers | 158.42K | 0.01% | 158.42K | $2.71M |
| Diadema partners lp | 142.13K | 0.61% | 142.13K | $3.56M |
| Toroso investments | 104.93K | 0.01% | 104.93K | $2.63M |
Sold Out
| Holder | Change |
|---|---|
| Northwestern mutual wealth management | -14.00 |
| Richards, merrill & peterson | -20.00 |
| Ameriflex group | -20.00 |
| Stephens consulting | -30.00 |
| Cornerstone planning group | -35.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 215 | -2.27% | 69,949,839 | -2.12% | 92 | 1.04% | 114 | -0.87% | 57 | -14.93% |
| Dec 31, 2025 | 88 | -53.68% | 14,118,121 | -80.85% | 18 | 0.19% | 53 | -44.21% | 20 | -65.52% |
| Sep 30, 2025 | 78 | -55.43% | 12,703,200 | -81.92% | 16 | 0.19% | 33 | -62.07% | 30 | -42.31% |
| Jun 30, 2025 | 183 | -2.14% | 75,607,117 | 7.41% | 100 | 1.15% | 90 | -3.23% | 54 | -15.63% |
| Mar 31, 2025 | 14 | -91.95% | 14,123,395 | -78.74% | 18 | 0.24% | 9 | -88.16% | 4 | -93.55% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| HBM Healthcare Investments AG Ord | 2.52M | 3.43% | - |
| Vanguard US Total Market Shares ETF | 2.24M | 3.21% | - |
| Vanguard Total Stock Mkt Idx Inv | 1.65M | 2.24% | - |
| iShares Russell 2000 ETF | 1.18M | 1.60% | 9.96K |
| UBS (Lux) Digital Health Equity SB USD | 1.08M | 1.55% | - |
| BNP Paribas US Small Cap Classic R | 1.07M | 1.43% | -21.54K |
| BNP Paribas US Small Cap ClassicC | 998.73K | 1.36% | -43.54K |
| UBS Lux Dgtl Hlth Eq Fd seeding P acc | 844.70K | 1.12% | - |
| Xtrackers S&P 500 Swap ETF 1C | 768.75K | 1.02% | -5.67K |
| Xtrackers S&P 500 2xLev Dly Swap ETF 1C | 632.16K | 0.84% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Jan 12, 2026 | Hollywood Mark | EVP & Chief Operating Officer | Sell | $138.76K |
| Jan 12, 2026 | Smith Jeffrey T L | EVP & Chief Medical Officer | Sell | $211.09K |
| Jan 12, 2026 | Moore Paul Andrew | Chief Scientific Officer | Sell | $216.76K |
| Jan 12, 2026 | Galbraith Kenneth | Chair & CEO | Sell | $689.82K |
| Jan 05, 2026 | Smith Jeffrey T L | EVP & Chief Medical Officer | Sell | $264.47K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | - |
| 2026 Q1 | - | 9 |
| 2025 Q4 | - | 1 |
| 2025 Q3 | - | - |
| 2025 Q2 | 8 | - |
ZYME Ownership FAQ
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