Marianne Boyd Johnson is Chairman at BOYD GAMING CORP (BYD). They have made 72 open-market trades across 2 companies since 2006, most recently 2026-08-24.
CIK 0001186742
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.
3 open-market purchases totalling $461K since 2008, against 69 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| BYD | 1,611,671 | $112.9M |
| WAL | 12,525 | $934K |
| Total | $113.8M |
Shares reported on the most recent Form 4, priced at the 2026-08-26 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 79% | 74% | 72% |
| Avg Move | -6.8% | -1.7% | +1.1% |
| Scored | 19 | 19 | 18 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| BYD | SELL | 2026-08-24 | 2026-08-26 | $82.00 | $984 | -3.9% | -10.5% | — |
| BYD | SELL | 2026-05-01 | 2026-05-05 | $84.49 | $8.4M | -6.8% | +4.2% | +0.0% |
| WAL | SELL | 2025-12-15 | 2025-12-16 | $87.06 | $3.9M | -0.6% | +4.6% | -21.2% |
| BYD | SELL | 2025-09-04 | 2025-09-05 | $86.62 | $8.7M | -4.2% | -1.2% | -5.9% |
| BYD | SELL | 2025-08-13 | 2025-08-14 | $84.17 | $8.4M | +3.7% | -0.3% | -3.4% |
| BYD | SELL | 2025-02-11 | 2025-02-13 | $77.65 | $11.6M | -3.1% | -11.5% | -2.9% |
| BYD | SELL | 2024-08-30 | 2024-09-03 | $60.00 | $4.4M | +1.5% | +6.1% | +24.3% |
| WAL | SELL | 2024-08-30 | 2024-09-04 | $81.00 | $1.0M | +1.9% | +4.5% | +14.8% |
| BYD | SELL | 2024-08-29 | 2024-08-30 | $60.23 | $4.4M | +1.0% | +8.7% | +24.2% |
| BYD | SELL | 2024-08-29 | 2024-09-03 | $60.23 | $3.2M | +1.5% | +6.1% | +24.3% |
| BYD | SELL | 2024-02-15 | 2024-02-20 | $64.69 | $12.9M | +4.7% | +2.8% | -11.0% |
| BYD | SELL · Routine | 2023-08-08 | 2023-08-10 | $67.24 | $6.7M | -3.7% | -5.4% | -15.6% |
| WAL | BUY | 2023-03-13 | 2023-03-15 | $25.79 | $64K | +13.5% | +5.6% | +36.3% |
| BYD | SELL | 2023-02-07 | 2023-02-09 | $65.21 | $25.6M | +1.3% | -8.5% | +8.5% |
| BYD | SELL | 2023-02-06 | 2023-02-08 | $64.89 | $3.2M | -2.2% | -8.1% | +6.7% |
| BYD | SELL | 2022-10-31 | 2022-11-02 | $57.94 | $5.8M | +8.6% | +9.6% | +14.2% |
| BYD | SELL | 2022-05-25 | 2022-05-27 | $56.36 | $11.2M | -0.1% | -11.2% | -3.1% |
| BYD | SELL | 2021-02-26 | 2021-03-01 | $56.51 | $3.7M | +5.9% | -4.9% | +3.5% |
| BYD | SELL | 2020-12-02 | 2020-12-04 | $40.04 | $4.9M | +1.9% | -0.5% | +38.9% |
| BYD | SELL | 2020-11-02 | 2020-11-04 | $31.23 | $9.4M | +8.0% | +28.2% | +45.2% |
| BYD | SELL | 2020-06-10 | 2020-06-12 | $23.07 | $231K | +7.1% | -8.1% | +42.3% |
| BYD | SELL | 2020-06-04 | 2020-06-08 | $24.30 | $4.9M | -9.5% | -22.8% | +11.1% |
| WAL | SELL | 2020-02-04 | 2020-02-06 | $56.90 | $498K | +1.0% | -42.5% | -43.6% |
| BYD | SELL | 2018-08-31 | 2018-09-04 | $36.41 | $1.9M | -4.5% | -4.2% | -26.8% |
| BYD | SELL | 2018-08-28 | 2018-08-29 | $35.86 | $1.1M | -7.9% | -6.8% | -35.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.