MongoDB, Inc. (MDB) Shareholders & Insider Trades
MongoDB shareholders at a glance
The largest holder of MongoDB stock is BlackRock Advisors LLC, with 4.8 million shares (6.02% of the company), worth about $2.20 billion as of September 25, 2026. The 10 largest holders together own 34.6%.
In Q2 2026, 959 institutional holdings reports listed shares worth $25.10 billion.
Insiders reported 75 transactions in the last two years: 46 sales worth $108.16 million and no purchases. The newest one on file is from May 18, 2026 (Merriman Dwight A, Director).
Major holders as of September 25, 2026; quarterly totals from institutional holdings reports (latest Q2 2026); insider transactions on file through May 18, 2026.
MongoDB, Inc.
Shareholders Summary
2026Q2
Ownership by Type
Geographic Distribution
Largest MongoDB shareholders
| Holder | Shares | % of company | Value |
|---|---|---|---|
| BlackRock Advisors LLC | 4.8 million | 6.02% | $2.2B |
| Vanguard Portfolio Management LLC | 4.5 million | 5.57% | $2.0B |
| Fidelity Management & Research Co. LLC | 3.7 million | 4.55% | $1.7B |
| Vanguard Capital Management LLC | 3.5 million | 4.35% | $1.6B |
| Union Investment Institutional GmbH | 2.7 million | 3.42% | $1.2B |
| T. Rowe Price International Ltd. | 2.1 million | 2.58% | $941.0M |
| State Street Corporation | 1.9 million | 2.40% | $877.0M |
| Geode Capital Management LLC | 1.6 million | 1.93% | $705.0M |
| AQR Capital Management LLC | 1.5 million | 1.87% | $682.0M |
| Dwight Merriman1.859 % | 1.5 million | 1.86% | $678.0M |
As of September 25, 2026.
MongoDB institutional holdings by quarter
| Quarter | Reports | Shares | Value |
|---|---|---|---|
| Q2 2026 | 959 | – | $25.1B |
| Q1 2026 | 886 | 71.4 million | $17.5B |
| Q4 2025 | 996 | 73.1 million | $30.7B |
| Q3 2025 | 867 | 75.3 million | $23.1B |
| Q2 2025 | 775 | 70.9 million | $14.9B |
| Q1 2025 | 747 | 70.0 million | $12.3B |
| Q4 2024 | 799 | 65.8 million | $15.3B |
| Q3 2024 | 744 | 71.6 million | $19.1B |
Shares and value held by institutions that file quarterly holdings reports (options not included).
MongoDB insider trades
| Insider | Date | Title | Transaction | Value |
|---|---|---|---|---|
| Merriman Dwight A | May 18, 2026 | Director | Sale at price 293.18 - 324.16 per share. | $4.9M |
| Merriman Dwight A | May 7, 2026 | Director | Sale at price 290.06 per share. | $580,120 |
| Merriman Dwight A | Apr 16, 2026 | Director | Sale at price 235.42 - 253.40 per share. | $2.9M |
| Ittycheria Dev C | Apr 1, 2026 | Director | Stock Award(Grant) at price 0.00 per share. | – |
| Pech Cedric | Apr 1, 2026 | Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Cochran Hope F | Apr 1, 2026 | Director | Sale at price 249.33 per share. | $390,451 |
| Cochran Hope F | Apr 1, 2026 | Director | Conversion of Exercise of derivative security at price 7.58 per share. | $29,691 |
| Berry Michael J | Mar 17, 2026 | Chief Financial Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Desai Chirantan Jitendra | Mar 17, 2026 | Chief Executive Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Merriman Dwight A | Mar 16, 2026 | Director | Sale at price 258.45 - 262.99 per share. | $3.1M |
| Merriman Dwight A | Feb 17, 2026 | Director | Sale at price 353.35 - 368.00 per share. | $6.2M |
| Merriman Dwight A | Feb 2, 2026 | Director | Sale at price 369.75 per share. | $440,002 |
Newest 12 of 75 insider transactions in the last two years.
Questions and answers
Who owns the most MongoDB stock?
BlackRock Advisors LLC, with 6.02% of the company (as of September 25, 2026). Next: Vanguard Portfolio Management LLC (5.57%) and Fidelity Management & Research Co. LLC (4.55%).
How many institutions own MongoDB stock?
959 institutional holdings reports listed MongoDB shares in Q2 2026 worth $25.10 billion.
Are MongoDB insiders buying or selling the stock?
In the last two years insiders reported 46 sales and no purchases (75 transactions in all); the newest on file is from May 18, 2026.
