Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in MDB held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 5.8M | $1.41B | -0.3% | 7.172% | 0.02% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 4.5M | $1.10B | — | 5.597% | 0.06% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 3.5M | $861.3M | — | 4.375% | 0.02% |
| 4 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 3.5M | $860.5M | +2.0% | 4.371% | 0.10% |
| 5 | CITADEL ADVISORS LLC | 2.5M | $600.0M | -17.3% | 3.048% | 0.28% |
| 6 | FMR LLC | 2.2M | $536.8M | -7.9% | 2.726% | 0.03% |
| 7 | DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt | 2.0M | $478.1M | +64.6% | 2.428% | 0.47% |
| 8 | STATE STREET CORP | 1.8M | $451.4M | +2.6% | 2.293% | 0.02% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 1.5M | $372.9M | +5.8% | 1.900% | 0.02% |
| 10 | AQR CAPITAL MANAGEMENT LLC | 1.3M | $318.5M | +127.7% | 1.631% | 0.15% |
| 11 | Artisan Partners Limited Partnership | 1.2M | $300.4M | +186.4% | 1.526% | 0.49% |
| 12 | MORGAN STANLEY | 1.2M | $298.1M | -11.8% | 1.514% | 0.02% |
| 13 | UBS ASSET MANAGEMENT AMERICAS INC | 1.1M | $265.5M | -6.1% | 1.348% | 0.06% |
| 14 | D. E. Shaw & Co., Inc. | 1.0M | $256.5M | -46.2% | 1.303% | 0.24% |
| 15 | ValueAct Holdings, L.P. | 1.0M | $254.0M | -26.2% | 1.290% | 4.45% |
| 16 | Capital World Investors | 1.0M | $249.0M | +3.8% | 1.265% | 0.03% |
| 17 | Jericho Capital Asset Management L.P. | 997K | $243.9M | 0.0% | 1.239% | 3.61% |
| 18 | WELLINGTON MANAGEMENT GROUP LLP | 905K | $221.4M | +310.7% | 1.125% | 0.04% |
| 19 | Invesco Ltd. | 904K | $221.2M | -15.0% | 1.124% | 0.03% |
| 20 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 892K | $220.2M | +24.7% | 1.109% | 0.07% |
| 21 | PRIMECAP MANAGEMENT CO/CA/ | 843K | $206.3M | -0.7% | 1.048% | 0.16% |
| 22 | Qube Research & Technologies Ltd | 724K | $177.2M | +18.2% | 0.900% | 0.21% |
| 23 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 672K | $164.5M | -49.7% | 0.836% | 0.09% |
| 24 | Employees Provident Fund Board | 585K | $143.1M | — | 0.727% | 0.00% |
| 25 | UBS Group AG | 581K | $142.1M | -24.9% | 0.722% | 0.02% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in MDB — a direct measure of their conviction.
Filings activity in MDB during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 793 | 9.4% | 63.53% | 51.58 pp | $17.52B | 45% |
| Q4 2025 | 875 | +18% | 115.11% | +32.42 pp | $31.74B | +39% |
| Q3 2025 | 739 | +9.8% | 82.69% | +27.25 pp | $22.80B | +49% |
| Q2 2025 | 673 | +6.5% | 55.44% | +10.64 pp | $15.28B | +24% |
| Q1 2025 | 632 | 6.6% | 44.80% | 15.95 pp | $12.35B | 26% |
| Q4 2024 | 677 | +7.3% | 60.75% | 5.31 pp | $16.75B | 8.0% |
| Q3 2024 | 631 | +2.1% | 66.06% | +5.42 pp | $18.21B | +8.9% |
| Q2 2024 | 618 | — | 60.64% | — | $16.72B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying MDB stock.
Based on Q1 2026 13F filings, institutional ownership of MongoDB, Inc. stands at 63.5%, held across 793 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of MDB, with approximately 5,768,427 shares worth $1.41B as of Q1 2026.
Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of MDB, including SUSQUEHANNA INTERNATIONAL GROUP, LLP, CITADEL ADVISORS LLC.
Our composite Smart Money Score for MDB is 34 out of 100 (Bearish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
138 institutions opened new positions in MDB during Q1 2026, while 220 fully exited. 102 added to existing positions and 550 trimmed.
MDB institutional ownership fell by 51.58 percentage points quarter-over-quarter, with a net change of -82 holders.
The top 10 institutions account for 39.9% of all reported 13F value in MDB, and the top 25 account for 59.1%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
MongoDB, Inc. (MDB) Institutional Ownership