MongoDB, Inc.
MongoDB, Inc. (MDB) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · MDB · as of Sep 30, 2025
Ownership Breakdown
856
Institutional Holders
▲ 92 vs Q2
$29.95B
Total Inst. Value
▲ $15.42B vs Q2
80.43M
Shares Outstanding
freeFloat 97.34%
74.18M
13F Shares Held
▲ 4.91M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
MDB largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC services-prepackaged software | 8.99M | 11.08% | 11.08% | $2.79T | Nov 7, 2025 | ▲ 431.4K |
BLACKROCK, INC. services-prepackaged software | 4.99M | 6.15% | 6.15% | $1.55T | Nov 12, 2025 | ▲ 172.7K |
MORGAN STANLEY services-prepackaged software | 2.72M | 3.35% | 3.35% | $844.25B | May 27, 2026 | ▲ 933.2K |
SUSQUEHANNA INTERNATIONAL GROUP, LLP services-prepackaged software | 2.16M | 2.66% | 2.66% | $670.42B | Nov 14, 2025 | ▲ 289.7K |
VALUEACT HOLDINGS, L.P. services-prepackaged software | 2.12M | 2.61% | 2.61% | $367.19B | Nov 14, 2025 | ▲ 1.43M |
FMR LLC services-prepackaged software | 1.99M | 2.45% | 2.45% | $616.30B | Nov 13, 2025 | ▲ 987.7K |
SUSQUEHANNA INTERNATIONAL GROUP, LLP services-prepackaged software | 1.97M | 2.43% | 2.43% | $611.70B | Nov 14, 2025 | ▲ 403.0K |
PRICE T ROWE ASSOCIATES INC /MD/ services-prepackaged software | 1.95M | 2.41% | 2.41% | $606.20B | Nov 14, 2025 | ▲ 1.84M |
STATE STREET CORP services-prepackaged software | 1.76M | 2.17% | 2.17% | $545.22B | Nov 14, 2025 | ▲ 63.4K |
AMUNDI services-prepackaged software | 1.48M | 1.83% | 1.83% | $477.55B | Nov 14, 2025 | ▲ 564.0K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
34
Increased
+13.87M shares1
New Positions
first time holders15
Decreased
−5.85M shares0
Sold Out
fully exitedNet shares change (top 50)
+8.01M
+13.87M / −5.85M
Net new holders
+20
1 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
MDB insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
8
Buy transactions
35
Sell transactions
0.23
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
BOTHA ROELOF director | Jun 2, 2026 | Sale | 680 | $395.48 | $268.9K | 193.9K | Form 4 ↗ |
BOTHA ROELOF director | Jun 2, 2026 | Sale | 4,225 | $397.25 | $1.68M | 189.7K | Form 4 ↗ |
BOTHA ROELOF director | Jun 2, 2026 | Sale | 28,889 | $397.99 | $11.50M | 160.8K | Form 4 ↗ |
BOTHA ROELOF director | Jun 2, 2026 | Sale | 9,856 | $398.74 | $3.93M | 150.9K | Form 4 ↗ |
BOTHA ROELOF director | Jun 2, 2026 | Sale | 400 | $399.82 | $159.9K | 150.6K | Form 4 ↗ |
Cochran Hope F director | May 29, 2026 | Sale | 1,000 | $350.00 | $350.0K | 27.0K | Form 4 ↗ |
MERRIMAN DWIGHT A director | May 14, 2026 | Sale | 886 | $293.18 | $259.8K | 1.00M | Form 4 ↗ |
MERRIMAN DWIGHT A director | May 14, 2026 | Sale | 1,130 | $294.47 | $332.8K | 1.00M | Form 4 ↗ |
MERRIMAN DWIGHT A director | May 14, 2026 | Sale | 1,396 | $295.60 | $412.7K | 999.9K | Form 4 ↗ |
MERRIMAN DWIGHT A director | May 14, 2026 | Sale | 933 | $296.50 | $276.6K | 999.0K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
MongoDB, Inc. (MDB) is primarily owned by institutional investors, who hold approximately 92.2% of total shares outstanding. Company insiders own approximately 2.66%, while retail and public investors account for the remaining 5.11%.
The largest institutional shareholder of MongoDB, Inc. is VANGUARD GROUP INC, holding approximately 8.99 million shares — equal to 11.08% of outstanding shares — as of September 30, 2025.
A total of 856 institutional investors currently hold MDB stock, with a combined institutional value of approximately $29.95 billion as of the most recent 13F filing period.
Frequently asked questions
MDB ownershipMongoDB, Inc. (MDB) is primarily owned by institutional investors, who hold approximately 92.2% of shares. The largest shareholder is VANGUARD GROUP INC with a 11.08% stake. Company insiders hold 2.66%. Data sourced from SEC Form 13F as of September 30, 2025.