Arthur W. Homan, Chief Legal Officer at Prothena Corp plc (PRTA), sold 3,125 shares at $54.85 ($173K) on 2015-09-01, disclosed to the SEC on 2015-09-03.
Scheduled sale ($173k) by Chief Legal Officer under a pre-arranged 10b5-1 plan. Pre-set trade — not a discretionary signal on the stock.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $54.85 | 1,100 | $60K | 34.8% |
| 2 | $55.77 | 2,025 | $113K | 65.2% |
| Total | $55.45 avg | 3,125 | $173K | 100% |
| Filing → |
| PRTA | BUY | 2026-10-09 | $1.8M | — | Filing → |
| PRTA | BUY | 2026-10-06 | $857K | — | Filing → |
| PRTA | BUY | 2026-09-30 | $1.4M | — | Filing → |