John Shinn is CLO & VP at RAMBUS INC (RMBS). They have made 7 open-market trades across 1 company since 2021, most recently 2026-05-22.
CIK 0001847137
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 7 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| RMBS | 21,112 | $1.8M |
Shares reported on the most recent Form 4, priced at the 2026-05-26 close.
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 |
|---|---|---|---|---|---|---|---|---|
| RMBS | SELL | 2026-05-22 | 2026-05-26 | $143.63 | $144K | -8.3% | -21.8% | -45.0% |
| RMBS | SELL | 2026-03-10 | 2026-03-11 | $88.68 | $404K | +3.3% | +22.2% | +62.5% |
| RMBS | SELL | 2026-03-03 | 2026-03-04 | $93.55 | $426K | +1.8% | +1.2% | +83.1% |
| RMBS | SELL | 2025-08-04 | 2025-08-05 | $74.61 | $118K | +1.6% | +3.2% | +44.8% |
| RMBS | SELL · 10b5-1 | 2025-03-21 | 2025-03-25 | $55.73 | $851K | -26.5% | -15.9% | +2.2% |
| RMBS | SELL · 10b5-1 | 2025-03-14 | 2025-03-17 | $52.98 | $809K | +2.4% | -15.2% | +11.5% |
| RMBS | SELL | 2024-12-12 | 2024-12-12 | $58.13 | $286K | -7.0% | -3.8% | -9.8% |
| RMBS | SELL · 10b5-1 | 2024-03-26 | 2024-03-27 | $62.71 | $495K | -2.4% | -6.0% | -13.8% |
| RMBS | SELL · 10b5-1 | 2024-03-19 | 2024-03-20 | $58.84 | $465K | -5.4% | -13.0% | -9.8% |
| RMBS | SELL · 10b5-1 | 2024-03-12 | 2024-03-13 | $62.68 | $488K | +0.6% | -1.9% | -8.5% |
| RMBS | SELL · 10b5-1 | 2024-03-07 | 2024-03-08 | $64.93 | $510K | -2.9% | -3.3% | -9.7% |
| RMBS | SELL | 2023-03-06 | 2023-03-07 | $44.82 | $762K | +1.6% | +12.0% | +45.7% |
| RMBS | SELL | 2022-02-15 | 2022-02-16 | $26.81 | $540K | -4.3% | +12.1% | -9.1% |
| RMBS | SELL · 10b5-1 | 2021-11-17 | 2021-11-18 | $24.55 | $50K | +1.8% | +2.0% | +4.9% |
| RMBS | SELL · 10b5-1 | 2021-08-17 | 2021-08-18 | $23.68 | $48K | +7.1% | +1.5% | +5.8% |
| RMBS | SELL · 10b5-1 | 2021-05-17 | 2021-05-18 | $18.43 | $38K | +8.4% | +23.3% | +32.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.