Robert F. Spillane is Director at MAGNITE, INC. (MGNI). They have made 7 open-market trades across 1 company since 2023, most recently 2026-09-14.
CIK 0001603808
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 |
|---|---|---|
| MGNI | 57,715 | $1.3M |
| RUBI | 84,922 | $33K |
| Total | $1.4M |
Shares reported on the most recent Form 4, priced at the 2026-09-16 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 |
|---|---|---|---|---|---|---|---|---|
| MGNI | SELL | 2026-09-14 | 2026-09-16 | $23.76 | $246K | -12.1% | -12.2% | — |
| MGNI | SELL | 2026-05-19 | 2026-05-21 | $13.33 | $133K | +7.8% | +30.0% | +77.7% |
| MGNI | SELL | 2025-11-21 | 2025-11-21 | $14.22 | $178K | +3.3% | +18.1% | -12.3% |
| MGNI | SELL | 2025-06-10 | 2025-06-12 | $17.57 | $264K | +20.2% | +34.1% | +38.7% |
| MGNI | SELL | 2024-11-20 | 2024-11-22 | $16.12 | $202K | -0.2% | -7.6% | +4.4% |
| MGNI | SELL | 2024-06-11 | 2024-06-13 | $13.04 | $326K | -4.6% | +12.2% | -5.3% |
| MGNI | SELL | 2023-08-22 | 2023-08-23 | $8.05 | $403K | +3.6% | -9.6% | -2.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.