Zymeworks Inc.

ZYMENASDAQ

$25.65-0.56 (-2.14% today)

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

Zymeworks Inc. price and activity chart data

Showing the 1Y range: Oct 6, 2025 to Oct 6, 2026. Price (+53.7%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
EcoR1 Capital, LLC	32.17%	$600M	29.19%	Not reported
Rubric Capital Management LP	9.80%	$183M	1.68%	Not reported
BlackRock, Inc.	5.95%	$111M	0.00%	Not reported
Perceptive Advisors LLC	5.86%	$109M	1.64%	Add 19.17%
BVF Inc	5.11%	$95.4M	2.44%	Reduce 2.28%
Assenagon Asset Management S.A.	3.51%	$65.5M	0.04%	Not reported
Morgan Stanley	3.12%	$58.3M	0.00%	Not reported
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	2.49%	$46.6M	0.05%	Reduce 6.65%
Vanguard Capital Management LLC	2.18%	$40.8M	0.00%	Not reported
Nextech Invest Ltd.	1.56%	$29.1M	1.38%	Not reported
State Street Corp	1.52%	$28.4M	0.00%	Not reported
Dimensional Fund Advisors LP	1.39%	$26M	0.00%	Not reported
Citadel Advisors LLC	1.28%	$23.9M	0.00%	Not reported
Nomura Asset Management International Inc.	1.25%	$23.3M	0.03%	New Not reported
FMR LLC	0.98%	$18.4M	0.00%	Not reported
Geode Capital Management, LLC	0.97%	$18.1M	0.00%	Not reported
Prosight Management, LP	0.94%	$17.6M	3.04%	Add 25.12%
Qube Research & Technologies Ltd	0.83%	$15.5M	0.01%	Not reported
Vanguard Portfolio Management LLC	0.71%	$13.3M	0.00%	Not reported
Redmile Group, LLC	0.69%	$12.9M	0.86%	Not reported
Capricorn Fund Managers Ltd	0.68%	$12.7M	1.00%	Reduce 51.70%
Goldman Sachs Group Inc	0.66%	$12.3M	0.00%	Not reported
Arrowstreet Capital, Limited Partnership	0.59%	$10.9M	0.00%	Not reported
Deutsche Bank Ag\	0.56%	$10.4M	0.00%	Not reported
Hillsdale Investment Management Inc.	0.54%	$10M	0.23%	Not reported
First Trust Advisors LP	0.48%	$8.9M	0.01%	Not reported
Granahan Investment Management, LLC	0.47%	$8.79M	0.31%	Not reported
Northern Trust Corp	0.45%	$8.39M	0.00%	Not reported
Pictet Asset Management Holding SA	0.43%	$7.45M	0.01%	Add 3229.59%
Picton Mahoney Asset Management	0.38%	$7.09M	0.05%	Add 5.71%
Silvercrest Asset Management Group LLC	0.31%	$5.85M	0.04%	Add 36.74%
Bank of America Corp	0.31%	$5.73M	0.00%	Not reported
Wells Fargo & Company	0.30%	$5.68M	0.00%	Not reported
SummitTX Capital, L.P.	0.30%	$5.51M	0.14%	Reduce 34.42%
Man Group plc	0.30%	$5.51M	0.01%	Not reported
Federated Hermes, Inc.	0.26%	$4.91M	0.01%	Not reported
Raymond James Financial Inc	0.23%	$4.35M	0.00%	Not reported
State of Wisconsin Investment Board	0.22%	$4.07M	0.01%	Not reported
Charles Schwab Investment Management Inc	0.21%	$3.98M	0.00%	Not reported
Kennedy Capital Management LLC	0.20%	$3.8M	0.07%	Reduce 1.92%
D. E. Shaw & Co., Inc.	0.20%	$3.79M	0.00%	Not reported
Diadema Partners LP	0.20%	$3.72M	0.47%	Not reported
Citigroup Inc	0.18%	$3.44M	0.00%	Not reported
Bank of New York Mellon Corp	0.18%	$3.43M	0.00%	Not reported
XTX Topco Ltd	0.18%	$3.29M	0.04%	Not reported
Nuveen, LLC	0.17%	$3.12M	0.00%	Not reported
Panagora Asset Management Inc	0.17%	$3.1M	0.01%	Not reported
UBS Group AG	0.16%	$3.01M	0.00%	Not reported
Invesco Ltd.	0.16%	$2.93M	0.00%	Not reported
AQR Capital Management LLC	0.16%	$2.91M	0.00%	Not reported

50 of 187 holders

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