Steven Nichtberger is CEO & President at Cabaletta Bio, Inc. (CABA). They have made 3 open-market trades across 1 company since 2022, most recently 2026-01-21.
CIK 0001487989
3 open-market purchases totalling $392K since 2022, never a sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CABA | 1,031,483 | $1.5M |
| TNGN | 153,398 | — |
| Total | $1.5M |
Shares reported on the most recent Form 4, priced at the 2026-01-21 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.
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.