Who Owns MDB (MDB)? -- Institutional Holders (2026-06-30)

986 institutions reported holding $30.19B of MDB (MDB) in SEC 13F filings for 2026-06-30. Largest institutional holders: VANGUARD GROUP INC ($2.93B), BlackRock, Inc. ($2.15B), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($1.67B), FMR LLC ($1.23B), DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main ($844.8M). Source: SEC Form 13F.

RankInstitutionValueSharesChange
1VANGUARD GROUP INC$2.93B8.7MTrimmed
2BlackRock, Inc.$2.15B6.4MAdded
3SUSQUEHANNA INTERNATIONAL GROUP, LLP$1.67B5.0MAdded
4FMR LLC$1.23B3.7MAdded
5DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main$844.8M2.5MAdded
6CITADEL ADVISORS LLC$835.4M2.5MAdded
7IMC-Chicago, LLC$716.3M2.1MAdded
8PRICE T ROWE ASSOCIATES INC /MD/$696.8M2.1MTrimmed
9STATE STREET CORP$649.6M1.9MAdded
10JANE STREET GROUP, LLC$621.0M1.8MAdded
11GEODE CAPITAL MANAGEMENT, LLC$520.9M1.6MAdded
12AQR CAPITAL MANAGEMENT LLC$505.1M1.5MAdded
13NORGES BANK$471.7M1.4MAdded
14MASSACHUSETTS FINANCIAL SERVICES CO /MA/$427.5M1.3MAdded
15UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC$392.2M1.2MAdded
16FIL Ltd$355.4M1.1MAdded
17Invesco Ltd.$346.5M1.0MAdded
18MORGAN STANLEY$341.8M1.0MTrimmed
19Capital World Investors$341.7M1.0MAdded
20Voya Investment Management LLC$293.3M873,254Added
21PRIMECAP MANAGEMENT CO/CA/$284.2M846,004Added
22D. E. Shaw & Co., Inc.$274.6M817,420Trimmed
23UBS Group AG$252.7M752,365Added
24Harel Insurance Investments & Financial Services Ltd.$248.4M739,460Added
25SRS Investment Management, LLC$248.1M738,611Added

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