MDB Institutional Ownership
Top institutional (13F) holders of MDB and activist (13D/G) positions, sourced from SEC EDGAR.
Institutional owners
46
Institutional value
$16.96B
Top holder
BlackRock, Inc.
Top holders
| Holder | Stake | Filed | Value |
|---|---|---|---|
| BlackRock, Inc.holding company | 8.0% | Aug 7, 2026 | $2.15B |
| SUSQUEHANNA INTERNATIONAL GROUP, LLPinvestment advisor | 6.2% | Aug 14, 2026 | $1.67B |
| Vanguard Portfolio Managementinvestment advisor | 5.6% | Aug 13, 2026 | $1.5B |
| FMR LLCinvestment advisor | 4.6% | Aug 13, 2026 | $1.23B |
| Vanguard Capital Managementinvestment advisor | 4.4% | Aug 13, 2026 | $1.18B |
| CITADEL ADVISORS LLCinvestment advisor | 3.1% | Sep 1, 2026 | $835.38M |
| T. Rowe Price Associates, Inc.investment advisor | 2.6% | Aug 14, 2026 | $696.85M |
| STATE STREET CORPORATIONinvestment advisor | 2.4% | Sep 22, 2026 | $649.65M |
| JANE STREET GROUP, LLCholding company | 2.3% | Aug 14, 2026 | $620.99M |
| GEODE CAPITAL MANAGEMENT, LLCinvestment advisor | 1.9% | Aug 12, 2026 | $520.89M |
| AQR CAPITAL MANAGEMENT LLCinvestment advisor | 1.9% | Aug 14, 2026 | $505.12M |
| Norges Bankother | 1.7% | Aug 12, 2026 | $471.75M |
| Massachusetts Financial Services Companyinvestment advisor | 1.6% | Aug 3, 2026 | $427.46M |
| Invesco Ltd.investment advisor | 1.3% | Aug 14, 2026 | $346.45M |
| MORGAN STANLEYinvestment advisor | 1.3% | Aug 13, 2026 | $341.83M |
| Capital World Investorsinvestment advisor | 1.3% | Aug 12, 2026 | $341.69M |
| PRIMECAP MANAGEMENT CO/CA/investment advisor | 1.1% | Aug 14, 2026 | $284.17M |
| D. E. Shaw & Co., Inc.investment advisor | 1.0% | Aug 14, 2026 | $274.57M |
| UBS Group AGinvestment advisor | 0.9% | Aug 13, 2026 | $252.72M |
| JPMORGAN CHASE & COinvestment advisor | 0.9% | Aug 12, 2026 | $234.7M |
| GOLDMAN SACHS GROUP INCinvestment advisor | 0.7% | Aug 14, 2026 | $193.05M |
| WELLINGTON MANAGEMENT GROUP LLPinvestment advisor | 0.7% | Aug 14, 2026 | $189.97M |
| NORTHERN TRUST CORPinvestment advisor | 0.7% | Aug 13, 2026 | $182.84M |
| MILLENNIUM MANAGEMENT LLCinvestment advisor | 0.7% | Aug 14, 2026 | $177.73M |
| ROYAL BANK OF CANADAinvestment advisor | 0.6% | Aug 14, 2026 | $168.13M |
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Source: SEC EDGAR Schedule 13D / 13G and 13F filings.