Mark Porter is CTO at MongoDB, Inc. (MDB). They have made 11 open-market trades across 1 company since 2020, most recently 2023-12-18.
CIK 0001801141
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 11 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| GTLB | SELL · 10b5-1 | 2023-12-15 | 2023-12-19 | $63.28 | $87K | -4.6% | +3.4% | -12.2% |
| MDB | SELL · 10b5-1 | 2023-07-03 | 2023-07-06 | $412.20 | $1.5M | +6.5% | -0.6% | -16.0% |
| MDB | SELL · 10b5-1 | 2023-06-02 | 2023-06-06 | $381.12 | $2.0M | -2.1% | +2.9% | +1.6% |
| MDB | SELL · 10b5-1 | 2023-05-09 | 2023-05-11 | $250.00 | $668K | +3.3% | +44.6% | +36.4% |
| MDB | SELL · 10b5-1 | 2023-04-03 | 2023-04-05 | $226.17 | $430K | +9.5% | +14.9% | +95.0% |
| MDB | SELL | 2023-01-03 | 2023-01-05 | $187.72 | $238K | +16.6% | +26.9% | +23.7% |
| MDB | SELL | 2022-10-03 | 2022-10-04 | $198.84 | $361K | -12.8% | -20.4% | -3.4% |
| MDB | SELL | 2022-08-02 | 2022-08-04 | $325.00 | $494K | +11.4% | -29.2% | -51.4% |
| MDB | SELL | 2022-07-05 | 2022-07-07 | $274.63 | $484K | -7.1% | +18.8% | -34.0% |
| MDB | SELL | 2022-04-04 | 2022-04-05 | $452.15 | $1.8M | -5.3% | -25.4% | -28.2% |
| MDB | SELL | 2022-01-04 | 2022-01-06 | $450.90 | $2.1M | -9.5% | -4.0% | -0.7% |
| MDB | SELL | 2021-10-04 | 2021-10-05 | $444.96 | $1.5M | +10.4% | +20.1% | +9.4% |
| MDB | SELL | 2021-07-02 | 2021-07-06 | $356.84 | $2.4M | -10.1% | +1.8% | +20.3% |
| MDB | SELL | 2021-04-05 | 2021-04-07 | $286.09 | $2.2M | +3.8% | -10.2% | +26.1% |
| MDB | SELL | 2021-01-04 | 2021-01-06 | $349.59 | $2.7M | +8.9% | +22.1% | -12.3% |
| MDB | SELL | 2020-10-02 | 2020-10-05 | $232.41 | $1.8M | +14.4% | +3.7% | +48.5% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.