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Who owns MongoDB (MDB) stock

851 funds reported MongoDB (MDB) shares in their latest 13F filings, worth $27.2B in all. The largest holder is Vanguard Group ($3.6B). Last quarter 436 funds added to their stakes and 355 cut them. Members of Congress and other officials disclosed 2 trades (1 buys, 1 sales).

Largest holders of MDB (13F)Largest holders of MDB (13F)Vanguard Group$3.6BBlackRock$2.1BVanguard Portfolio Management LLC$1.5BFMR LLC$1.2BVanguard Capital Management LLC$1.2BDZ Bank AG Deutsche Zentral Genos…$845MPrice T Rowe Associates$697MState Street$650MGeode Capital Management, LLC$521MAQR Capital Management LLC$505M

Largest holders (13F)

FundSharesValueChangeQuarter
Vanguard Group8,642,666$3.6Bdecrease2025-12-31
BlackRock6,342,387$2.1Bincrease2026-06-30
Vanguard Portfolio Management LLC4,478,068$1.5Bdecrease2026-06-30
FMR LLC3,660,780$1.2Bincrease2026-06-30
Vanguard Capital Management LLC3,500,977$1.2Bdecrease2026-06-30
DZ Bank AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main2,514,942$845Mincrease2026-06-30
Price T Rowe Associates2,074,569$697Mdecrease2026-06-30
State Street1,934,054$650Mincrease2026-06-30
Geode Capital Management, LLC1,554,896$521Mincrease2026-06-30
AQR Capital Management LLC1,503,774$505Mincrease2026-06-30
Massachusetts Financial Services1,263,690$427Mincrease2026-06-30
UBS AM, a distinct business unit of UBS Asset Management Americas LLC1,167,644$392Mincrease2026-06-30
FIL1,057,918$355Mincrease2026-06-30
Invesco1,031,417$346Mincrease2026-06-30
Morgan Stanley1,017,661$342Mdecrease2026-06-30

Trades by Congress and other officials

DateWhoTradeAmount
2026-05-14Gilbert Cisnerossale$1K–$15K
2025-11-18Gilbert Cisnerospurchase$1K–$15K

MongoDB's latest quarter

MongoDB, Q2 FY27: revenue $772M (+30% year over year), operating margin 3.7%, net earnings $40.9M, operating cash flow $142M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most MDB stock?

By the latest 13F filings: Vanguard Group ($3.6B); BlackRock ($2.1B); Vanguard Portfolio Management LLC ($1.5B); FMR LLC ($1.2B); Vanguard Capital Management LLC ($1.2B).

Has Congress traded MDB stock?

Officials disclosed 2 trades on file: 1 buys and 1 sales. The latest: Gilbert Cisneros, sale on 2026-05-14.

What is the short interest in MDB?

2,664,891 shares were sold short at the 2026-10-15 settlement, -5.87% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.