자임웍스(주)
US ˙ NasdaqGS ˙ US98985Y1082

SecurityZYME / Zymeworks Inc.
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Renaissance Technologies Llc closes position in ZYME / Zymeworks Inc.

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 0 shares of Zymeworks Inc. (US:ZYME) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 220,877 shares of Zymeworks Inc.. The current value of the position is $0 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 0 -100.00 0
2026-02-12 2025-12-31 13F ZYMEWORKS COM 98985Y108 220,877 -210,823 -48.84 5,816 -21.13 0.0090
2025-11-13 2025-09-30 13F ZYMEWORKS COM 98985Y108 431,700 -101,600 -19.05 7,373 10.18 0.0097
2025-08-13 2025-06-30 13F ZYMEWORKS COM 98985Y108 533,300 82,700 18.35 6,693 24.71 0.0089
2025-05-14 2025-03-31 13F ZYMEWORKS COM 98985Y108 450,600 164,900 57.72 5,367 28.31 0.0081
2025-02-13 2024-12-31 13F ZYMEWORKS COM 98985Y108 285,700 101,100 54.77 4,183 80.57 0.0062
2024-11-13 2024-09-30 13F ZYMEWORKS COM 98985Y108 184,600 -52,181 -22.04 2,317 14.94 0.0035
2024-08-09 2024-06-30 13F ZYMEWORKS COM 98985Y108 236,781 121,181 104.83 2,015 201,400.00 0.0034
2024-05-13 2024-03-31 13F ZYMEWORKS COM 98985Y108 115,600 100,900 686.39 1 0.0019
2024-02-13 2023-12-31 13F ZYMEWORKS COM 98985Y108 14,700 -1,158 -7.30 0 0.0002
2023-11-14 2023-09-30 13F ZYMEWORKS COM 98985Y108 15,858 -246,279 -93.95 0 -100.00 0.0002
2023-08-11 2023-06-30 13F ZYMEWORKS COM 98985Y108 262,137 178,737 214.31 2 0.0033
2023-05-12 2023-03-31 13F ZYMEWORKS COM 98985Y108 83,400 -36,600 -30.50 1 0.0010
2023-02-13 2022-12-31 13F ZYMEWORKS DEL COM 98985Y108 120,000 120,000 1 0.0013
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.