Zymeworks Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:ZYME Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Role	Shares	Max Price
16 Jun 23	BuyUS$27,202,000	EcoR1 Capital, LLC	Company		3,350,000	US$8.12

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of ZYME?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	17,092	0.024%
Individual Insiders	3,165,636	4.45%
Hedge Funds	25,792,521	36.3%
Institutions	42,156,670	59.3%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 10.2%.

Top Shareholders

Top 25 shareholders own 87.33% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
20%	EcoR1 Capital, LLC	14,132,291	US$121.3m	0%	3.74%
8.32%	BVF Partners L.P.	5,870,000	US$50.4m	0%	1.21%
8.21%	Redmile Group, LLC	5,790,230	US$49.7m	2.28%	2.03%
6.85%	Morgan Stanley, Investment Banking and Brokerage Investments	4,836,964	US$41.5m	8.34%	0.01%
5.56%	BlackRock, Inc.	3,923,328	US$33.7m	8.41%	no data
4.92%	Rubric Capital Management LP	3,475,384	US$29.8m	31.1%	0.94%
3.95%	Daniel Edward Cookson	2,786,936	US$23.9m	0%	no data
3.39%	The Vanguard Group, Inc.	2,394,712	US$20.5m	0.45%	no data
3.24%	Credit Suisse Asset Management (Switzerland) Ltd.	2,286,371	US$19.6m	-7.54%	0.01%
2.51%	BNPP Asset Management Holding	1,771,776	US$15.2m	13.7%	0.02%
2.49%	Farallon Capital Management, L.L.C.	1,756,000	US$15.1m	-12.2%	0.1%
2.15%	HBM Partners Ltd.	1,519,259	US$13.0m	0%	1.38%
2.07%	Samsara BioCapital LLC	1,458,875	US$12.5m	0%	2.4%
1.78%	Acadian Asset Management LLC	1,254,021	US$10.8m	51.8%	0.03%
1.56%	Tang Capital Management, LLC	1,100,000	US$9.4m	0%	1.04%
1.52%	Perceptive Advisors LLC	1,074,807	US$9.2m	-25.7%	0.21%
1.43%	State Street Global Advisors, Inc.	1,007,812	US$8.6m	7.55%	no data
1.35%	Bridgeway Capital Management, LLC	953,732	US$8.2m	5.45%	0.13%
1.26%	Deutsche Asset & Wealth Management	888,635	US$7.6m	674%	no data
0.99%	Granahan Investment Management, LLC	700,558	US$6.0m	-2.86%	0.2%
0.97%	AQR Capital Management, LLC	686,171	US$5.9m	-14.2%	0.01%
0.91%	Geode Capital Management, LLC	639,672	US$5.5m	6.71%	no data
0.7%	Jupiter Fund Management Plc	495,582	US$4.3m	4.39%	0.01%
0.59%	Northern Trust Global Investments	417,146	US$3.6m	-0.65%	no data
0.58%	Platinum Investment Management Limited	409,839	US$3.5m	0%	0.09%