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NASDAQ: ZYME
Zymeworks Inc Stock Ownership - Who owns Zymeworks?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Zymeworks Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Gregory Austin CiongoliDirector2025-08-12415,000$12.02
$4.99MBuy
Ecor1 Capital LLCDirector2025-06-2641$12.71
$521.11Sell
Ecor1 Capital LLCDirector2025-05-195,919$11.78
$69.74kBuy
Ecor1 Capital LLCDirector2025-05-1549,502$11.43
$565.86kBuy
Ecor1 Capital LLCDirector2025-04-1754,760$11.52
$630.84kBuy
Ecor1 Capital LLCDirector2025-04-1673,953$11.16
$825.61kBuy
Ecor1 Capital LLCDirector2025-04-04196,438$11.17
$2.19MBuy
Ecor1 Capital LLCDirector2025-04-03120,770$11.84
$1.43MBuy
Ecor1 Capital LLCDirector2025-04-0274,360$11.85
$881.02kBuy
Ecor1 Capital LLCDirector2025-04-0148,658$11.60
$564.63kBuy

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Net Insider Buy/Sell (L12M) Ownership

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ZYME Shareholders

What type of owners hold Zymeworks Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Ecor1 Capital LLC54.02%40,426,434$1.05BInsider
Ecor1 Capital LLC30.69%22,970,388$594.24MInstitution
Oleg Nodelman21.01%15,720,161$406.68MInsider
Redmile Group LLC8.08%6,045,437$156.40MInsider
Rubric Capital Management LP6.29%4,710,551$121.86MInstitution
Blackrock Inc5.33%3,989,533$103.21MInstitution
Morgan Stanley5.32%3,984,585$103.08MInstitution
Bvf Inc5.26%3,938,641$101.89MInstitution
Redmile Group LLC4.95%3,705,750$95.87MInstitution
Vanguard Group Inc2.88%2,154,434$55.74MInstitution

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ZYME vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ZYME52.65%47.35%Net Buying
SION63.05%36.95%Net BuyingNet Selling
CLDX84.76%15.24%Net SellingNet Selling
STOK53.12%46.88%Net SellingNet Selling
VCEL91.19%8.81%Net SellingNet Selling
View Top Biotech Stocks

Zymeworks Stock Ownership FAQ

Who owns Zymeworks?

Zymeworks (NASDAQ: ZYME) is owned by 98.50% institutional shareholders, 88.60% Zymeworks insiders, and 0.00% retail investors. Ecor1 Capital LLC is the largest individual Zymeworks shareholder, owning 40.43M shares representing 54.02% of the company. Ecor1 Capital LLC's Zymeworks shares are currently valued at $1.01B.

If you're new to stock investing, here's how to buy Zymeworks stock.
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