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WB in the 13F filings

Weibo Corp · CUSIP 948596101

Sector · Software and IT servicesTheme · Internet, programming and data services
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
30 Jun 2026
the date the book describes
Filed
2 Sep 2026
latest of these filings; the earliest 13 Aug 2026
Managers listing it
13
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q1 2026 and Q2 2026; 1 listed it in both
Shares listed
10,004,556
combined, among listed positions
Reported value
$73m
combined, at the quarter end

Among the 91 comparable managers: 6 buyers (opened or added shares) and 7 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -144,944.

Managers listing WB in Q2 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2026, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

13 of 13 holders

ActionFiling
Acadian Asset Management LLC5,053,606$37munder 0.1%Trimmed-512,06913 Aug 2026 (the filing on sec.gov)
Wellington Management Group LLP2,363,373$17munder 0.1%Added+697,77814 Aug 2026 (the filing on sec.gov)
Susquehanna International Group LLP650,193$4.7munder 0.1%Trimmed-19,90014 Aug 2026 (the filing on sec.gov)
D. E. Shaw & Co.644,960$4.7munder 0.1%Added+9,70414 Aug 2026 (the filing on sec.gov)
Invesco Ltd380,408$2.8munder 0.1%Trimmed-122,52314 Aug 2026 (the filing on sec.gov)
Millennium Management LLC282,839$2.1munder 0.1%Added+272,55114 Aug 2026 (the filing on sec.gov)
Two Sigma Investments LP224,605$1.6munder 0.1%Trimmed-311,58314 Aug 2026 (the filing on sec.gov)
Jane Street Group LLC207,045$1.5munder 0.1%Added+32,41014 Aug 2026 (the filing on sec.gov)
Squarepoint Ops LLC101,006$733kunder 0.1%Added+35,83114 Aug 2026 (the filing on sec.gov)
Voloridge Investment Management LLC53,302$387kunder 0.1%Trimmed-176,72814 Aug 2026 (the filing on sec.gov)
Balyasny Asset Management LLC29,235$212kunder 0.1%Added+9,46514 Aug 2026 (the filing on sec.gov)
Citadel Advisors LLC13,775$100kunder 0.1%Trimmed-7,0782 Sep 2026 (the filing on sec.gov)
Fidelity (FMR LLC)209$2kunder 0.1%Held013 Aug 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q1 2026 to Q2 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (0)

No new position among listed positions.

Exited (1)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
4 in Q3 2024 to 1 in Q2 2026

Tracked managers listing it, at least.

051015201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
WB by quarter
QuarterHoldersReported valueBuyersSellers
Q3 20141$577kn.a.n.a.
Q1 20151$5.7mn.a.n.a.
Q2 20151$14mn.a.n.a.
Q3 20151$5.8mn.a.n.a.
Q4 20152$22mn.a.n.a.
Q1 20162$25mn.a.n.a.
Q2 20162$19mn.a.n.a.
Q3 201610$194mn.a.n.a.
Q4 20167$115mn.a.n.a.
Q1 20173$111mn.a.n.a.
Q2 201715$477mn.a.n.a.
Q3 20178$809mn.a.n.a.
Q4 20179$670mn.a.n.a.
Q1 201810$885mn.a.n.a.
Q2 20189$726mn.a.n.a.
Q3 20186$161mn.a.n.a.
Q4 20184$261mn.a.n.a.
Q1 20195$320mn.a.n.a.
Q2 20196$280mn.a.n.a.
Q3 20195$282mn.a.n.a.
Q4 20193$224mn.a.n.a.
Q1 20203$173mn.a.n.a.
Q2 20203$294mn.a.n.a.
Q3 20204$338mn.a.n.a.
Q4 20204$412mn.a.n.a.
Q1 20213$448mn.a.n.a.
Q2 20214$378mn.a.n.a.
Q3 20213$304mn.a.n.a.
Q4 20213$76mn.a.n.a.
Q1 20221$8.3mn.a.n.a.
Q2 20224$45mn.a.n.a.
Q3 20222$17mn.a.n.a.
Q4 20223$26mn.a.n.a.
Q1 20234$86mn.a.n.a.
Q2 20233$36mn.a.n.a.
Q3 20234$43mn.a.n.a.
Q4 20234$64m40
Q1 20242$7.6m02
Q2 20242$19m20
Q3 20244$94m31
Q4 20243$75m13
Q1 20252$58m11
Q2 20251$57m01
Q3 20252$83m02
Q4 20251$60m810
Q1 20261$49m77
Q2 20261$37m67

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

WB and GOOGL →WB and META →WB and SPCX →Choose a stock to compare with WB →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own WB, latest filings →Back to the 13F Explorer →