Jesus B. Mantas is Director at BIOGEN INC. (BIIB). They have made 1 open-market trade across 1 company since 2021, most recently 2026-06-09.
CIK 0001777331
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 $240K since 2021, never a sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| BIIB | 11,263 | $2.9M |
Shares reported on the most recent Form 4, priced at the 2026-06-11 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| BIIB | BUY | 2021-02-09 | 2021-02-10 | $267.00 | $240K | +0.2% | -4.4% | -0.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.