Stuart A. Kingsley is EVP & Global Comm. Operations at BIOGEN IDEC INC. (BIIB). They have made 2 open-market trades across 2 companies since 2007, most recently 2026-05-13.
CIK 0001369067
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 $30K since 2026, against 1 sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| HOLX | 36,032 | $2.7M |
| BIIB | 7,416 | $1.7M |
| SRRK | 42,000 | $1.7M |
| MDCO | 11,386 | $967K |
| INDV | 12,100 | $392K |
| CYTC | 2,794 | — |
| Total | $7.5M |
Shares reported on the most recent Form 4, priced at the 2026-05-14 close. 1 holding could not be priced and is 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 |
|---|---|---|---|---|---|---|---|---|
| INDV | BUY | 2026-03-06 | 2026-03-11 | $31.87 | $30K | -2.0% | +1.8% | +27.5% |
| BIIB | SELL · 10b5-1 | 2014-03-11 | 2014-03-12 | $336.83 | $2.8M | -11.0% | -1.9% | -1.9% |
| BIIB | SELL · 10b5-1 | 2012-02-14 | 2012-02-16 | $118.61 | $148K | -11.0% | -1.9% | -1.9% |
| BIIB | SELL · 10b5-1 | 2012-02-06 | 2012-02-08 | $121.03 | $376K | -11.0% | -1.9% | -1.9% |
| HOLX | SELL | 2007-11-14 | 2007-11-16 | $63.23 | $6.3M | -7.6% | -1.4% | -1.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.