Zymeworks Inc.
US ˙ NasdaqGS ˙ US98985Y1082

SecurityZYME / Zymeworks Inc.
InstitutionFranklin Resources Inc
Latest Disclosed Ownership77,659 shares
Latest Disclosed Value $ 1,944,582
Franklin Resources Inc reports 31.65% increase in ownership of ZYME / Zymeworks Inc.

On May 13, 2026 - Franklin Resources Inc filed a 13F-HR form disclosing ownership of 77,659 shares of Zymeworks Inc. (US:ZYME) valued at $1,944,581 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 58,987 shares of Zymeworks Inc.. This represents a change in shares of 31.65% during the quarter. The current value of the position is $1,890,997 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F ZYMEWORKS COM 98985Y108 77,659 18,672 31.65 1,945 25.18 0.0001
2026-02-11 2025-12-31 13F ZYMEWORKS COM 98985Y108 58,987 25,166 74.41 1,553 169.15 0.0004
2025-11-13 2025-09-30 13F ZYMEWORKS COM 98985Y108 33,821 33,821 578 0.0001
2025-08-12 2025-06-30 13F ZYMEWORKS COM 98985Y108 0 -32,160 -100.00 0 -100.00
2025-05-13 2025-03-31 13F ZYMEWORKS COM 98985Y108 32,160 32,160 383 0.0001
2024-08-14 2024-06-30 13F ZYMEWORKS COM 98985Y108 0 -114,458 -100.00 0 -100.00
2024-05-13 2024-03-31 13F ZYMEWORKS COM 98985Y108 114,458 70,276 159.06 1,204 162.31 0.0004
2024-02-09 2023-12-31 13F ZYMEWORKS COM 98985Y108 44,182 1,293 3.01 459 69.37 0.0002
2023-11-13 2023-09-30 13F ZYMEWORKS COM 98985Y108 42,889 17,761 70.68 272 24.88 0.0001
2023-08-11 2023-06-30 13F ZYMEWORKS COM 98985Y108 25,128 25,128 217 0.0001
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.