Tara Nickerson, Chief Business Officer at Prothena Corp plc (PRTA), sold 35,000 shares at $69.20 ($2.4M) on 2017-09-28, disclosed to the SEC on 2017-09-29.
Open-market sale of $2.4M PRTA by Chief Business Officer. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $69.05 | 4,724 | $326K | 13.5% |
| 2 | $69.05 | 4,724 | $326K | 13.5% |
| 3 | $69.20 | 12,776 | $884K | 36.5% |
| 4 | $69.20 | 12,776 | $884K | 36.5% |
| Total | $69.16 avg | 35,000 | $2.4M | 100% |
| Filing → |
| PRTA | SELL | 2015-09-11 | $561K | — | Filing → |
| PRTA | SELL | 2015-06-09 | $533K | — | Filing → |
| PRTA | SELL | 2015-03-20 | $520K | — | Filing → |