Biggs C. Porter is CFO & VP at Maxar Technologies Inc. (MAXR). They have made 8 open-market trades across 3 companies since 2006, most recently 2023-05-03.
CIK 0001217839
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.
4 open-market purchases totalling $214K since 2007, against 4 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MAXR | SELL | 2023-02-28 | 2023-03-01 | $51.53 | $4.9M | -1.8% | -0.7% | N/A |
| MAXR | BUY | 2021-05-06 | 2021-05-06 | $28.00 | $95K | -3.6% | +14.7% | +11.0% |
| MAXR | BUY | 2020-11-10 | 2020-11-12 | $23.09 | $46K | +14.8% | +41.1% | +112.4% |
| MAXR | SELL | 2019-08-20 | 2020-02-21 | $6.74 | $21K | +8.1% | -49.5% | -38.5% |
| FLR | SELL | 2013-11-06 | 2013-11-08 | $76.83 | $1.0M | -10.4% | +2.5% | +2.5% |
| THC | BUY | 2008-11-10 | 2008-11-10 | $2.04 | $20K | -22.7% | +0.6% | +0.6% |
| THC | BUY | 2007-08-29 | 2007-08-30 | $3.48 | $52K | -22.7% | +0.6% | +0.6% |
| THC | SELL | 2006-12-13 | 2007-01-03 | $7.13 | $1K | -22.7% | +0.6% | +0.6% |
| RTN | SELL · 10b5-1 | 2006-05-31 | 2006-06-01 | $45.15 | $589K | -1.0% | +0.1% | +0.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.