Who Owns STRATEGY INC (MSTR)? -- Institutional Holders (2026-06-30)

445 institutions reported holding $1.54B of STRATEGY INC (MSTR) in SEC 13F filings for 2026-06-30. Largest institutional holders: Belvedere Trading LLC ($294.0M), Context Capital Management, LLC ($180.4M), Calamos Advisors LLC ($138.5M), CITIGROUP INC ($113.3M), Walleye Trading LLC ($90.2M). Source: SEC Form 13F.

RankInstitutionValueSharesChange
1Belvedere Trading LLC$294.0M3.4MAdded
2Context Capital Management, LLC$180.4M0Trimmed
3Calamos Advisors LLC$138.5M0Trimmed
4CITIGROUP INC$113.3M1.2MAdded
5Walleye Trading LLC$90.2M1.0MTrimmed
6Walleye Capital LLC$86.0M146,214Added
7EXCHANGE TRADED CONCEPTS, LLC$70.1M806,331Added
8Sumitomo Mitsui Trust Group, Inc.$52.5M604,139Added
9Vontobel Holding Ltd.$32.3M371,424Trimmed
10NEW YORK STATE COMMON RETIREMENT FUND$27.8M319,850Trimmed
11Cambridge Investment Research Advisors, Inc.$20.7M238,196Added
12OFI INVEST ASSET MANAGEMENT$20.4M268,183Added
13COMMONWEALTH EQUITY SERVICES, LLC$19.1M237,538Added
14Strong Tower Advisory Services$12.4M142,149Added
15EULAV Asset Management$12.0M138,000Hold
16Generali Asset Management SPA SGR$11.9M136,945Added
17Mirae Asset Global Investments Co., Ltd.$11.8M135,951Added
18Robeco Institutional Asset Management B.V.$11.6M133,755Added
19TD Asset Management Inc$10.5M121,147Added
20Pictet Asset Management Holding SA$9.3M107,414Added
21Handelsbanken Fonder AB$9.3M106,522Added
22Asset Management One Co., Ltd.$9.2M106,355Added
23Leonteq Securities AG$9.0M103,164Trimmed
24Swedbank AB$7.9M90,590Added
25INDEPENDENT FINANCIAL GROUP, LLC$7.7M88,483Added

Source: SEC Form 13F filings · as of 2026-06-30