Xiaomeng Tong is Director & 10% Owner at Viela Bio, Inc. (VIE). They have made 4 open-market trades across 1 company since 2019, most recently 2020-06-05.
CIK 0001789666
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.
2 open-market purchases totalling $7.3M since 2019, against 2 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| VIE | 8,622,353 | $457.1M |
Shares reported on the most recent Form 4, priced at the 2020-06-08 close.
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.