Zymeworks Inc.
US ˙ NasdaqGS ˙ US98985Y1082

SecurityZYME / Zymeworks Inc.
InstitutionHrt Financial Lp
Latest Disclosed Ownership237,889 shares
Latest Disclosed Value $ 5,956
Hrt Financial Lp reports 96.50% increase in ownership of ZYME / Zymeworks Inc.

On May 14, 2026 - Hrt Financial Lp filed a 13F-HR form disclosing ownership of 237,889 shares of Zymeworks Inc. (US:ZYME) valued at $5,956,741 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 121,064 shares of Zymeworks Inc.. This represents a change in shares of 96.50% during the quarter. The current value of the position is $5,718,852 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)
2026-05-14 2026-03-31 13F ZYMEWORKS COM 98985Y108 237,889 116,825 96.50 6 66.67 0.0149
2026-02-12 2025-12-31 13F ZYMEWORKS COM 98985Y108 121,064 52,603 76.84 3 200.00 0.0101
2025-11-14 2025-09-30 13F ZYMEWORKS COM 98985Y108 68,461 35,703 108.99 1 0.0043
2025-08-14 2025-06-30 13F ZYMEWORKS COM 98985Y108 32,758 -32,622 -49.90 0 0.0018
2025-05-15 2025-03-31 13F ZYMEWORKS COM 98985Y108 65,380 -30,594 -31.88 1 -100.00 0.0049
2025-02-14 2024-12-31 13F ZYMEWORKS COM 98985Y108 95,974 47,166 96.64 1 0.0073
2024-11-12 2024-09-30 13F ZYMEWORKS COM 98985Y108 48,808 48,808 1 0.0030
2023-08-11 2023-06-30 13F ZYMEWORKS COM 98985Y108 0 -327,026 -100.00 0 -100.00
2023-05-12 2023-03-31 13F ZYMEWORKS COM 98985Y108 327,026 327,026 3 0.0361
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.