Ali Tehrani - Jul 12, 2021 Form 4 Insider Report for Zymeworks Inc. (ZYME)

Role: Chief Executive Officer, Director
Signature: /s/ Daniel Dex, Attorney-in-Fact
Stock symbol: ZYME
Transactions as of: Jul 12, 2021
Transactions value $: -$403,079
Form type: 4
Date filed: 7/13/2021, 08:00 PM
Next filing: Jul 16, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ZYME	Common Shares	Options Exercise	$54.6K	+12.7K	+4.87%	$4.31	273K	Jul 12, 2021	Direct	F1, F2
transaction	ZYME	Common Shares	Sale	-$458K	-12.7K	-4.64%	$36.12^*	260K	Jul 12, 2021	Direct	F1, F3
holding	ZYME	Common Shares						55.5K	Jul 12, 2021	Held by spouse

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ZYME	Stock Option (Right to Buy)	Options Exercise	$0	-12.7K	-21.97%	$0.00	45K	Jul 12, 2021	Common Shares	12.7K	$4.31	Direct	F1, F2, F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Pursuant to a 10b5-1 plan entered into May 13, 2021.
F2	The exercise price of the stock option is CAD5.37. The U.S. dollar equivalent of the exercise price is $4.3062 using the Bank of Canada exchange rate for July 12, 2021 (CAD1.00 = $0.8019).
F3	The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $36.0649 to $36.5902, inclusive. Upon request by the Commission staff, the Company, or a security holder of the Company, the reporting person will provide full information regarding the number of shares sold by the reporting person on July 12, 2021 at each separate price.
F4	Stock options vest as follows: (i) 25% of underlying shares on first anniversary of grant date of January 1, 2012 and (ii) remainder of underlying shares in 36 equal monthly installments on the last day of month following first anniversary of grant date.