| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Across the last three months, Prothena Corporation Plc's insiders have accumulated 141,452 shares worth roughly $1.3M on balance. In the past 30 days, 1 insider bought and 2 sold. The bias lately has been to the sell side.
The largest recent buyer is SCULLY WILLIAM P (10% Owner), now holding an estimated $6.8M in PRTA.
Not all activity pointed one way: 2 insiders sold in the same window, though all of them still hold shares. Classified under Biotechnology (Health Care sector), PRTA's insider flows are most useful compared with peers in the same group.
| Role | Insider | Shares | Value | 30d |
|---|---|---|---|---|
| 10% | 790.0K | $7.28M | +37.5K | |
| CEO | 152.8K | $1.41M | - | |
| COO | 130.0K | $1.20M | - | |
| CFO | 97.2K | $896.2K | - | |
| Other | 55.8K | $514.3K | -7,662 |
Buys and sells only
| Date | Insider | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Oct 25, 2023 | Walker Karin L82 | Chief Accounting Officer | Sale+OE | 5,000 | $41.04 | $205,191.33 | -58.8% | -15.1% | -59.0% | |
| Oct 11, 2023 | Smith Brandon S.80 | Chief Operating Officer | Sale+OE | 4,000 | $46.75 | $186,984.61 | -90.0% | -16.0% | -64.4% | |
| Oct 4, 2023 | Karp Carol D.81 | Chief Regulatory Officer | Sale+OE | 5,000 | $46.62 | $233,084.31 | -88.3% | -14.9% | -62.9% | |
| Sep 27, 2023 | Malecek Michael J81 | Chief Legal Officer | Sale+OE | 5,000 | $47.38 | $236,884.70 | -92.5% | -15.3% | -57.6% | |
| Sep 19, 2023 | Walker Karin L82 | Chief Accounting Officer | Sale+OE | 5,000 | $52.36 | $261,807.00 | -100% | -30.1% | -59.1% | |
| Sep 13, 2023 | Garren Hideki71 | Chief Medical Officer | Sale+OE | 2,000 | $55.48 | $110,952.20 | -100% | -37.3% | -61.6% | |
| Sep 13, 2023 | Smith Brandon S.80 | Chief Operating Officer | Sale+OE | 4,000 | $55.49 | $221,963.03 | -97.2% | -37.3% | -61.6% | |
| Sep 6, 2023 | Karp Carol D.81 | Chief Regulatory Officer | Sale+OE | 5,000 | $54.76 | $273,803.56 | -99.9% | -35.5% | -62.2% | |
| Aug 30, 2023 | Malecek Michael J81 | Chief Legal Officer | Sale+OE | 5,000 | $55.01 | $275,065.97 | -65.0% | -40.3% | -60.3% | |
| Aug 18, 2023 | Walker Karin L82 | Chief Accounting Officer | Sale+OE | 5,000 | $57.18 | $285,922.50 | -100% | -39.2% | -63.4% |