Gene G. Kinney is CEO & President at PROTHENA CORP PUBLIC LTD CO (PRTA). They have made 13 open-market trades across 1 company since 2014, most recently 2026-07-28.
CIK 0001564380
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
1 open-market purchase totalling $49K since 2014, against 12 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| PRTA | 152,793 | $1.3M |
Shares reported on the most recent Form 4, priced at the 2026-07-30 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| PRTA | SELL · 10b5-1 | 2023-05-17 | 2023-05-17 | $73.69 | $6.6M | -14.9% | -9.8% | -20.4% |
| PRTA | SELL | 2022-09-28 | 2022-09-30 | $53.37 | $1.7M | -14.0% | +0.9% | -2.0% |
| PRTA | SELL | 2022-09-21 | 2022-09-23 | $32.02 | $174K | +89.8% | +95.3% | +92.0% |
| PRTA | SELL | 2022-08-17 | 2022-08-19 | $32.03 | $140K | -8.0% | +1.3% | +89.8% |
| PRTA | SELL | 2022-08-10 | 2022-08-12 | $32.16 | $2.2M | -2.0% | -6.6% | +80.0% |
| PRTA | SELL | 2022-08-04 | 2022-08-05 | $32.51 | $2.8M | -4.7% | -24.1% | +73.9% |
| PRTA | SELL · 10b5-1 | 2022-07-27 | 2022-07-29 | $32.00 | $12K | +4.1% | -7.3% | +95.6% |
| PRTA | SELL | 2017-09-28 | 2017-09-29 | $70.00 | $196K | -5.7% | -10.6% | -41.3% |
| PRTA | SELL | 2017-03-01 | 2017-03-03 | $60.77 | $3.1M | -0.7% | -1.8% | -8.8% |
| PRTA | SELL | 2017-02-28 | 2017-03-02 | $60.00 | $228K | -6.9% | -5.1% | -11.4% |
| PRTA | SELL | 2016-11-09 | 2016-11-10 | $55.32 | $946K | +1.0% | -9.1% | -16.5% |
| PRTA | SELL | 2016-10-21 | 2016-10-21 | $55.15 | $322K | -17.6% | +19.6% | -10.7% |
| PRTA | SELL | 2016-10-20 | 2016-10-21 | $55.10 | $1.1M | -17.6% | +19.6% | -10.7% |
| PRTA | SELL | 2016-10-20 | 2016-10-21 | $55.08 | $814K | -17.6% | +19.6% | -10.7% |
| PRTA | SELL · 10b5-1 | 2015-12-09 | 2015-12-11 | $66.15 | $2.0M | -31.1% | -27.6% | -49.7% |
| PRTA | BUY | 2014-05-09 | 2014-05-12 | $19.54 | $49K | -31.1% | -7.0% | -7.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.