Mark L. Reuss is President at General Motors Co (GM). They have made 20 open-market trades across 2 companies since 2010, most recently 2026-07-28.
CIK 0001492362
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.
1 open-market purchase totalling $7K since 2010, against 19 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| GM | 92,293 | $8.5M |
| NO | 200 | — |
| XLS | 29,346 | — |
| Total | $8.5M |
Shares reported on the most recent Form 4, priced at the 2026-07-29 close. 2 holdings could not be priced and are excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| GM | SELL | 2026-07-28 | 2026-07-29 | $89.97 | $6.4M | -1.9% | -3.7% | -10.1% |
| GM | SELL | 2026-02-17 | 2026-02-18 | $80.52 | $38.7M | -6.6% | -12.5% | -12.7% |
| GM | SELL | 2025-10-22 | 2025-10-24 | $66.45 | $34.6M | -1.1% | +2.1% | +16.6% |
| GM | SELL | 2025-09-24 | 2025-09-26 | $60.10 | $19.6M | -8.8% | +12.2% | +34.3% |
| GM | SELL | 2024-11-06 | 2024-11-08 | $55.16 | $13.5M | -2.3% | -6.2% | -14.7% |
| GM | SELL | 2024-06-07 | 2024-06-11 | $46.24 | $4.6M | -1.5% | -1.9% | -2.9% |
| GM | SELL · 10b5-1 | 2024-05-28 | 2024-05-30 | $43.44 | $6.5M | +11.6% | +8.0% | +13.5% |
| GM | SELL · 10b5-1 | 2023-07-13 | 2023-07-14 | $41.00 | $381K | -3.0% | -13.7% | -23.2% |
| GM | SELL | 2021-11-17 | 2021-11-19 | $64.36 | $28.9M | -1.5% | -12.8% | -21.2% |
| GM | SELL | 2021-11-12 | 2021-11-16 | $64.00 | $1.8M | -5.5% | -7.8% | -23.6% |
| GM | SELL | 2021-03-22 | 2021-03-24 | $58.38 | $15.2M | +13.4% | +5.4% | +8.5% |
| GM | SELL | 2020-11-09 | 2020-11-12 | $39.09 | $19.6M | +17.1% | +4.9% | +38.3% |
| GM | SELL | 2019-08-02 | 2019-08-06 | $40.03 | $17.7M | -4.4% | +0.1% | -0.8% |
| GM | SELL | 2018-02-15 | 2018-02-20 | $41.85 | $13.9M | -8.1% | -10.8% | -6.5% |
| GM | SELL | 2018-01-04 | 2018-01-05 | $43.09 | $1.3M | -0.4% | -10.2% | -13.7% |
| GM | SELL | 2017-06-30 | 2017-07-05 | $35.00 | $11.6M | +4.3% | +1.1% | +24.6% |
| GM | SELL | 2017-05-03 | 2017-05-05 | $33.35 | $2.5M | -4.2% | +1.8% | +2.7% |
| GM | SELL | 2015-02-17 | 2015-02-18 | $37.34 | $250K | -8.8% | -0.4% | -0.4% |
| GM | SELL | 2014-02-18 | 2014-02-20 | $36.40 | $247K | -8.8% | -0.4% | -0.4% |
| GM | SELL | 2013-04-01 | 2013-04-02 | $27.85 | $265K | -8.8% | -0.4% | -0.4% |
| GM | SELL | 2011-08-18 | 2011-08-19 | $23.71 | $76K | -8.8% | -0.4% | -0.4% |
| NO | BUY | 2010-11-23 | 2010-11-24 | $33.00 | $7K | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.