Zymeworks Inc.
DE ˙ DB ˙ US98985Y1082
20,25 € ↑0,09 (0,45%)
2026-06-03
AKTIENPREIS
SecurityDE:ZA8 / Zymeworks Inc.
InstitutionProsight Management, LP
Latest Disclosed Ownership539,049 shares
Latest Disclosed Value $ 13,497,787
Prosight Management, LP reports 1.63% increase in ownership of ZA8 / Zymeworks Inc.

On May 15, 2026 - Prosight Management, LP filed a 13F-HR form disclosing ownership of 539,049 shares of Zymeworks Inc. (DE:ZA8) valued at $11,104,409 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 530,393 shares of Zymeworks Inc.. This represents a change in shares of 1.63% during the quarter. The current value of the position is $10,915,742 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)
2026-05-15 2026-03-31 13F ZYMEWORKS COM 98985Y108 539,049 8,656 1.63 13,498 -3.35 2.2134
2026-02-13 2025-12-31 13F ZYMEWORKS COM 98985Y108 530,393 -219,218 -29.24 13,965 9.08 2.8858
2025-11-14 2025-09-30 13F ZYMEWORKS COM 98985Y108 749,611 -560,293 -42.77 12,803 -22.12 2.9860
2025-08-14 2025-06-30 13F ZYMEWORKS COM 98985Y108 1,309,904 352,675 36.84 16,439 44.20 4.0090
2025-05-15 2025-03-31 13F ZYMEWORKS COM 98985Y108 957,229 137,229 16.74 11,401 -5.03 3.7460
2025-02-14 2024-12-31 13F ZYMEWORKS COM 98985Y108 820,000 -97,599 -10.64 12,005 4.25 3.3177
2024-11-14 2024-09-30 13F ZYMEWORKS COM 98985Y108 917,599 -262,401 -22.24 11,516 14.68 2.8339
2024-08-14 2024-06-30 13F ZYMEWORKS COM 98985Y108 1,180,000 769,052 187.14 10,042 132.27 3.0014
2024-05-15 2024-03-31 13F ZYMEWORKS COM 98985Y108 410,948 410,948 4,323 1.2027
2024-02-14 2023-12-31 13F ZYMEWORKS COM 98985Y108 0 -106,405 -100.00 0 -100.00
2023-11-14 2023-09-30 13F ZYMEWORKS COM 98985Y108 106,405 106,405 675 0.2138
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.