Mark Simon is Director at Cabaletta Bio, Inc. (CABA). They have made 2 open-market trades across 1 company since 2022, most recently 2026-01-21.
CIK 0001400717
2 open-market purchases totalling $148K since 2022, never a sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CABA | 147,205 | $208K |
Shares reported on the most recent Form 4, priced at the 2026-01-21 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.