Zai Lab Limited - Depositary Receipt (Common Stock)
US ˙ NasdaqGM ˙ US98887Q1040

SecurityZLAB / Zai Lab Limited - Depositary Receipt (Common Stock)
InstitutionNorthern Trust Corp
Latest Disclosed Ownership25,709 shares
Latest Disclosed Value $ 483,586
Northern Trust Corp reports 73.34% decrease in ownership of ZLAB / Zai Lab Limited - Depositary Receipt (Common Stock)

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 25,709 shares of Zai Lab Limited - Depositary Receipt (Common Stock) (US:ZLAB) valued at $483,586 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 96,442 shares of Zai Lab Limited - Depositary Receipt (Common Stock). This represents a change in shares of -73.34% during the quarter. The current value of the position is $445,794 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 ZAI LAB ADR 98887Q104 25,709 -70,733 -73.34 484 -71.60 0.0000
2026-02-17 2025-12-31 13F ZAI LAB ADR 98887Q104 96,442 -49,561 -33.95 1,701 -65.62 0.0002
2025-11-14 2025-09-30 13F ZAI LAB ADR 98887Q104 146,003 -14 -0.01 4,948 -3.09 0.0006
2025-08-13 2025-06-30 13F ZAI LAB ADR 98887Q104 146,017 -16,681 -10.25 5,106 -13.15 0.0007
2025-05-13 2025-03-31 13F ZAI LAB ADR 98887Q104 162,698 113,333 229.58 5,880 355.03 0.0009
2025-02-14 2024-12-31 13F ZAI LAB ADR 98887Q104 49,365 26,700 117.80 1,293 136.20 0.0002
2024-11-13 2024-09-30 13F ZAI LAB COM 98887Q104 22,665 141 0.63 547 40.26 0.0001
2024-08-14 2024-06-30 13F ZAI LAB COM 98887Q104 22,524 2,036 9.94 390 18.90 0.0001
2024-05-14 2024-03-31 13F ZAI LAB COM 98887Q104 20,488 -1,307 -6.00 328 -44.87 0.0001
2024-02-13 2023-12-31 13F ZAI LAB COM 98887Q104 21,795 2,930 15.53 596 29.91 0.0001
2023-11-13 2023-09-30 13F ZAI LAB COM 98887Q104 18,865 -114 -0.60 459 -12.93 0.0001
2023-08-11 2023-06-30 13F ZAI LAB COM 98887Q104 18,979 -264,741 -93.31 526 -94.43 0.0001
2023-05-15 2023-03-31 13F ZAI LAB COM 98887Q104 283,720 69,457 32.42 9,437 43.47 0.0019
2023-02-13 2022-12-31 13F ZAI LAB COM 98887Q104 214,263 -11,097 -4.92 6,578 -14.66 0.0014
2022-11-14 2022-09-30 13F ZAI LAB COM 98887Q104 225,360 14,211 6.73 7,707 5.24 0.0018
2022-08-12 2022-06-30 13F ZAI LAB COM 98887Q104 211,149 30,393 16.81 7,323 -7.88 0.0016
2022-05-13 2022-03-31 13F ZAI LAB COM 98887Q104 180,756 -5,112 -2.75 7,949 -31.96 0.0014
2022-02-08 2021-12-31 13F ZAI LAB ADR 98887Q104 185,868 -17,123 -8.44 11,682 -45.39 0.0019
2021-11-15 2021-09-30 13F ZAI LAB ADR 98887Q104 202,991 -135,880 -40.10 21,393 -64.33 0.0038
2021-11-15 2021-09-30 13F TREMONT MTG TR COM 894789106 13,237 0 69 0.0000
2021-08-13 2021-06-30 13F ZAI LAB ADR 98887Q104 338,871 20,395 6.40 59,977 41.14 0.0106
2021-08-13 2021-06-30 13F TREMONT MTG TR COM 894789106 13,237 -305,239 80 0.0000
2021-05-12 2021-03-31 13F ZAI LAB ADR 98887Q104 318,476 23,171 7.85 42,495 6.33 0.0079
2021-02-11 2020-12-31 13F ZAI LAB COM 98887Q104 295,305 9,176 3.21 39,966 67.94 0.0078
2020-11-16 2020-09-30 13F ZAI LAB COM 98887Q104 286,129 78,344 37.70 23,798 39.45 0.0052
2020-08-14 2020-06-30 13F ZAI LAB COM 98887Q104 207,785 110,955 114.59 17,066 242.35 0.0040
2020-05-14 2020-03-31 13F ZAI LAB COM 98887Q104 96,830 50,692 109.87 4,985 159.77 0.0014
2020-02-14 2019-12-31 13F ZAI LAB COM 98887Q104 46,138 2,122 4.82 1,919 34.76 0.0004
2019-11-13 2019-09-30 13F ZAI LAB COM 98887Q104 44,016 -44 -0.10 1,424 -7.29 0.0003
2019-08-13 2019-06-30 13F ZAI LAB COM 98887Q104 44,060 13,384 43.63 1,536 69.72 0.0004
2019-05-13 2019-03-31 13F ZAI LAB COM 98887Q104 30,676 2,332 8.23 905 37.54 0.0002
2019-02-12 2018-12-31 13F ZAI LAB COM 98887Q104 28,344 -61 -0.21 658 18.99 0.0002
2018-11-14 2018-09-30 13F ZAI LAB COM 98887Q104 28,405 18,766 194.69 553 146.88 0.0001
2018-09-18 2018-06-30 13F/A-1 ZAI LAB COM 98887Q104 9,639 9,639 224 0.0001
2018-08-14 2018-06-30 13F ZAI LAB COM 98887Q104 9,639 224 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.