Weibo Corporation - Depositary Receipt (Common Stock)
US ˙ NasdaqGS ˙ US9485961018

SecurityWB / Weibo Corporation - Depositary Receipt (Common Stock)
InstitutionOMERS ADMINISTRATION Corp
Latest Disclosed Ownership52,930 shares
Latest Disclosed Value $ 463,138
OMERS ADMINISTRATION Corp ownership in WB / Weibo Corporation - Depositary Receipt (Common Stock)

On May 15, 2026 - OMERS ADMINISTRATION Corp filed a 13F-HR form disclosing ownership of 52,930 shares of Weibo Corporation - Depositary Receipt (Common Stock) (US:WB) valued at $463,138 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 52,930 shares of Weibo Corporation - Depositary Receipt (Common Stock). This represents a change in shares of 0.00% during the quarter. The current value of the position is $418,676 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 WEIBO SPONSORED ADR 948596101 52,930 0 0.00 463 -14.26 0.0030
2026-02-13 2025-12-31 13F WEIBO SPONSORED ADR 948596101 52,930 6,924 15.05 541 -5.26 0.0039
2025-11-14 2025-09-30 13F WEIBO SPONSORED ADR 948596101 46,006 -19,300 -29.55 570 -8.36 0.0041
2025-08-13 2025-06-30 13F WEIBO SPONSORED ADR 948596101 65,306 65,306 622 0.0049
2019-08-08 2019-06-30 13F WEIBO SPONSORED ADR 948596101 0 -26,100 -100.00 0 -100.00
2019-05-15 2019-03-31 13F WEIBO SPONSORED ADR 948596101 26,100 8,200 45.81 1,677 60.33 0.0193
2019-02-14 2018-12-31 13F WEIBO SPONSORED ADR 948596101 17,900 11,600 184.13 1,046 126.90 0.0141
2018-11-14 2018-09-30 13F WEIBO SPONSORED ADR 948596101 6,300 6,300 461 0.0044
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.