| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Chief Accounting Officer | Principal Accounting Officer
1 company
Thomas Bull is Chief Accounting Officer at MDB. Thomas Bull's net worth is not public. Form 4 filings only show shares in the companies where this person is an insider; those holdings are worth an estimated $3.5M at current prices.
Our model assigns Thomas Bull a middling insider score of 58/100, based on 28 past trades. Over a 12-month horizon, 48.1% of those trades were profitable, with an average 12-month return of -3.0%.
The MDB filings lean toward selling, a net 64,688 shares.
Thomas Bull has 51 Form 4 filings on record from October 2018 to January 2026, all as Chief Accounting Officer at MongoDB (MDB), 2018–2026.
The 153 reported transactions were 127 open-market sales, 11 stock awards, 8 option exercises and 5 conversions, plus smaller numbers of other types.
Counted by filing, the open-market trades come to no purchases and 41 sales worth about $14.8M.
The largest open-market sale was 4,250 shares of MDB at an average $317.91 on June 8, 2021, about $1.4M. Twelve months later MDB was down 7%.
5 of the 14 sales since April 2023 were made under a Rule 10b5-1 trading plan; the other 9 were not.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Dec 8, 2025 | MDB Mongodb, Inc. | Chief Accounting Officer | Sell10b5-1 | 555 | $413.86 | $229,692.30 | -4.9% | -35.0% | - | |
| Sep 8, 2025 | MDB Mongodb, Inc. | Chief Accounting Officer | Sell10b5-1 | 1,000 | $326.25 | $326,250.00 | -7.9% | +29.5% | +10.1% | |
| Jul 31, 2025 | MDB Mongodb, Inc. | Chief Accounting Officer | Sell10b5-1 | 2,000 | $250.00 | $500,000.00 | -13.7% | +43.1% | +41.9% | |
| Apr 2, 2025 | MDB Mongodb, Inc. | Chief Accounting Officer | Sell | 301 | $173.25 | $52,148.25 | -2.0% | +14.3% | +40.5% | |
| Jan 2, 2025 | MDB Mongodb, Inc. | Chief Accounting Officer | Sell | 169 | $234.09 | $39,561.21 | -1.1% | -26.3% | +63.4% | |
| Dec 9, 2024 | MDB Mongodb, Inc. | Chief Accounting Officer | Sell10b5-1 | 1,000 | $355.92 | $355,920.00 | -6.2% | -48.5% | +18.3% | |
| Oct 2, 2024 | MDB Mongodb, Inc. | Chief Accounting Officer | Sell | 154 | $256.25 | $39,462.50 | -0.9% | -8.5% | +28.3% | |
| Sep 9, 2024 | MDB Mongodb, Inc. | Chief Accounting Officer | Sell10b5-1 | 1,000 | $282.89 | $282,890.00 | -5.8% | +22.2% | +15.5% | |
| Jul 2, 2024 | MDB Mongodb, Inc. | Chief Accounting Officer | Sell | 138 | $265.29 | $36,610.02 | -0.8% | +4.0% | -21.3% | |
| Apr 2, 2024 | MDB Mongodb, Inc. | Chief Accounting Officer | Sell | 170 | $348.12 | $59,179.70 | -1.0% | -24.2% | -48.2% |