Mark Porter
CIK 1801141 · View on SEC EDGAR ↗
Insider
First SEC filing: July 6, 2023 · Latest: July 6, 2023
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 10 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
10 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| July 3, 2023 | MDB | S 10b5-1 | 100 | $409.22 | $40,922 | 37,690 Direct | -0.26% | Disposed | -0.2% (price as of 2026-08-24) |
| July 3, 2023 | MDB | S 10b5-1 | 300 | $410.54 | $123,162 | 37,390 Direct | -0.80% | Disposed | -0.5% (price as of 2026-08-24) |
| July 3, 2023 | MDB | S 10b5-1 | 834 | $411.79 | $343,433 | 36,556 Direct | -2.23% | Disposed | -0.8% (price as of 2026-08-24) |
| July 3, 2023 | MDB | S 10b5-1 | 900 | $412.67 | $371,403 | 35,656 Direct | -2.46% | Disposed | -1.0% (price as of 2026-08-24) |
| July 3, 2023 | MDB | S 10b5-1 | 400 | $413.75 | $165,500 | 35,256 Direct | -1.12% | Disposed | -1.3% (price as of 2026-08-24) |
| July 3, 2023 | MDB | S 10b5-1 | 200 | $414.42 | $82,884 | 35,056 Direct | -0.57% | Disposed | -1.4% (price as of 2026-08-24) |
| June 2, 2023 | MDB | S 10b5-1 | 2,669 | $381.12 | $1,017,209 | 37,667 Direct | -6.62% | Disposed | 7.2% (price as of 2026-08-24) |
| May 9, 2023 | MDB | S 10b5-1 | 2,673 | $250.00 | $668,250 | 40,336 Direct | -6.21% | Disposed | 63.4% (price as of 2026-08-24) |
| April 3, 2023 | MDB | S 10b5-1 | 800 | $225.50 | $180,400 | 44,109 Direct | -1.78% | Disposed | 81.2% (price as of 2026-08-24) |
| April 3, 2023 | MDB | S 10b5-1 | 1,000 | $226.58 | $226,580 | 43,109 Direct | -2.27% | Disposed | 80.3% (price as of 2026-08-24) |
| April 3, 2023 | MDB | S 10b5-1 | 100 | $227.45 | $22,745 | 43,009 Direct | -0.23% | Disposed | 79.6% (price as of 2026-08-24) |
| Jan. 3, 2023 | MDB | S 10b5-1 | 635 | $187.72 | $119,202 | 27,577 Direct | -2.25% | Disposed | 117.6% (price as of 2026-08-24) |
| Oct. 3, 2022 | MDB | S | 342 | $198.84 | $68,003 | 28,779 Direct | -1.17% | Disposed | 105.5% (price as of 2026-08-24) |
| Oct. 3, 2022 | MDB | S 10b5-1 | 567 | $198.84 | $112,742 | 28,212 Direct | -1.97% | Disposed | 105.5% (price as of 2026-08-24) |
| Aug. 2, 2022 | MDB | S 10b5-1 | 1,520 | $325.00 | $494,000 | 29,121 Direct | -4.96% | Disposed | 25.7% (price as of 2026-08-24) |
| July 5, 2022 | MDB | S | 4 | $261.39 | $1,046 | 32,071 Direct | -0.01% | Disposed | 56.3% (price as of 2026-08-24) |
| July 5, 2022 | MDB | S | 330 | $264.48 | $87,278 | 31,741 Direct | -1.03% | Disposed | 54.5% (price as of 2026-08-24) |
| July 5, 2022 | MDB | S 10b5-1 | 1,100 | $280.77 | $308,847 | 30,641 Direct | -3.47% | Disposed | 45.5% (price as of 2026-08-24) |
| April 4, 2022 | MDB | S | 3 | $442.36 | $1,327 | 34,835 Direct | -0.01% | Disposed | -7.6% (price as of 2026-08-24) |
| April 4, 2022 | MDB | S | 192 | $443.78 | $85,206 | 34,643 Direct | -0.55% | Disposed | -7.9% (price as of 2026-08-24) |
| April 4, 2022 | MDB | S 10b5-1 | 1,100 | $452.33 | $497,563 | 33,543 Direct | -3.18% | Disposed | -9.7% (price as of 2026-08-24) |
| April 4, 2022 | MDB | S 10b5-1 | 1,020 | $453.17 | $462,233 | 32,523 Direct | -3.04% | Disposed | -9.9% (price as of 2026-08-24) |
| April 4, 2022 | MDB | S 10b5-1 | 500 | $454.06 | $227,030 | 32,023 Direct | -1.54% | Disposed | -10.0% (price as of 2026-08-24) |
| Jan. 4, 2022 | MDB | S 10b5-1 | 497 | $448.84 | $223,073 | 29,474 Direct | -1.66% | Disposed | -9.0% (price as of 2026-08-24) |
| Jan. 4, 2022 | MDB | S 10b5-1 | 789 | $449.82 | $354,908 | 28,685 Direct | -2.68% | Disposed | -9.2% (price as of 2026-08-24) |
| Jan. 4, 2022 | MDB | S 10b5-1 | 209 | $451.78 | $94,422 | 28,476 Direct | -0.73% | Disposed | -9.6% (price as of 2026-08-24) |
| Jan. 4, 2022 | MDB | S 10b5-1 | 525 | $452.62 | $237,626 | 27,951 Direct | -1.84% | Disposed | -9.7% (price as of 2026-08-24) |
| Jan. 4, 2022 | MDB | S 10b5-1 | 600 | $453.51 | $272,106 | 27,351 Direct | -2.15% | Disposed | -9.9% (price as of 2026-08-24) |
| Oct. 4, 2021 | MDB | S 10b5-1 | 200 | $436.95 | $87,390 | 32,466 Direct | -0.61% | Disposed | -6.5% (price as of 2026-08-24) |
| Oct. 4, 2021 | MDB | S 10b5-1 | 400 | $438.18 | $175,272 | 32,066 Direct | -1.23% | Disposed | -6.8% (price as of 2026-08-24) |
| Oct. 4, 2021 | MDB | S 10b5-1 | 101 | $439.29 | $44,368 | 31,965 Direct | -0.31% | Disposed | -7.0% (price as of 2026-08-24) |
| Oct. 4, 2021 | MDB | S 10b5-1 | 300 | $441.02 | $132,306 | 31,665 Direct | -0.94% | Disposed | -7.4% (price as of 2026-08-24) |
| Oct. 4, 2021 | MDB | S 10b5-1 | 300 | $442.33 | $132,699 | 31,365 Direct | -0.95% | Disposed | -7.6% (price as of 2026-08-24) |
| Oct. 4, 2021 | MDB | S 10b5-1 | 411 | $443.96 | $182,468 | 30,954 Direct | -1.31% | Disposed | -8.0% (price as of 2026-08-24) |
| Oct. 4, 2021 | MDB | S 10b5-1 | 300 | $444.74 | $133,422 | 30,654 Direct | -0.97% | Disposed | -8.1% (price as of 2026-08-24) |
| Oct. 4, 2021 | MDB | S 10b5-1 | 300 | $447.19 | $134,157 | 30,354 Direct | -0.98% | Disposed | -8.6% (price as of 2026-08-24) |
| Oct. 4, 2021 | MDB | S 10b5-1 | 8 | $448.88 | $3,591 | 30,346 Direct | -0.03% | Disposed | -9.0% (price as of 2026-08-24) |
| Oct. 4, 2021 | MDB | S 10b5-1 | 100 | $450.05 | $45,005 | 30,246 Direct | -0.33% | Disposed | -9.2% (price as of 2026-08-24) |
| Oct. 4, 2021 | MDB | S 10b5-1 | 100 | $451.61 | $45,161 | 30,146 Direct | -0.33% | Disposed | -9.5% (price as of 2026-08-24) |
| Oct. 4, 2021 | MDB | S 10b5-1 | 100 | $461.99 | $46,199 | 30,046 Direct | -0.33% | Disposed | -11.6% (price as of 2026-08-24) |
| Oct. 4, 2021 | MDB | S | 3 | $459.02 | $1,377 | 30,043 Direct | -0.01% | Disposed | -11.0% (price as of 2026-08-24) |
| Oct. 4, 2021 | MDB | S | 131 | $460.66 | $60,346 | 29,912 Direct | -0.44% | Disposed | -11.3% (price as of 2026-08-24) |
| July 2, 2021 | MDB | S 10b5-1 | 2,557 | $356.30 | $911,059 | 33,271 Direct | -7.14% | Disposed | 14.7% (price as of 2026-08-24) |
| July 2, 2021 | MDB | S 10b5-1 | 400 | $357.70 | $143,080 | 32,871 Direct | -1.20% | Disposed | 14.2% (price as of 2026-08-24) |
| July 2, 2021 | MDB | S 10b5-1 | 621 | $358.76 | $222,790 | 32,250 Direct | -1.89% | Disposed | 13.9% (price as of 2026-08-24) |
| April 5, 2021 | MDB | S 10b5-1 | 2,006 | $285.66 | $573,034 | 37,649 Direct | -5.06% | Disposed | 43.0% (price as of 2026-08-24) |
| April 5, 2021 | MDB | S 10b5-1 | 1,821 | $286.56 | $521,826 | 35,828 Direct | -4.84% | Disposed | 42.6% (price as of 2026-08-24) |
| Jan. 4, 2021 | MDB | S 10b5-1 | 1,286 | $348.89 | $448,673 | 33,464 Direct | -3.70% | Disposed | 17.1% (price as of 2026-08-24) |
| Jan. 4, 2021 | MDB | S 10b5-1 | 2,541 | $349.95 | $889,223 | 30,923 Direct | -7.59% | Disposed | 16.7% (price as of 2026-08-24) |
| Oct. 2, 2020 | MDB | S 10b5-1 | 947 | $231.60 | $219,325 | 37,629 Direct | -2.45% | Disposed | 76.4% (price as of 2026-08-24) |
| Oct. 2, 2020 | MDB | S 10b5-1 | 2,879 | $232.68 | $669,886 | 34,750 Direct | -7.65% | Disposed | 75.6% (price as of 2026-08-24) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.