Stock ledger
$PRTA Insider Trading
Prothena Corporation plc
3
Alerts Sent
0%
Hit Rate Here
1
Insider Buys 30d
0
Insider Sells 30d
This page is InsiderWatch’s own record for PRTA: every alert we sent on this stock, scored against real market prices, plus recent insider buying and selling reported to the SEC on Form 4.
Price and Our Alerts
$PRTA price
Daily closing prices
3M change
-6.2%
1Y high
$11.51
1Y low
$7.91
Our alerts
3
in this window
Prices from public market data and may be delayed. Markers show the days our alerts on this stock fired. Not investment advice.
Our Alerts on $PRTA
1 alert on PRTA sent and pending: awaiting the next market close before the result appears here.
| Sent (ET) | Call | Alert | Result |
|---|---|---|---|
| Sep 3, 6:24 PM | BULLISH | Prothena insider accumulates $1M, still buying higher | -13.2% ✗ miss |
| Aug 21, 2:33 PM | BULLISH | Prothena 10% owner buys $439K of stock | -11.8% ✗ miss |
Every alert we sent on PRTA is listed once scored, hits and misses alike. Result is the stock’s move from the alert to the graded exit of its catalyst window.
Recent Insider Activity
Open-market buys and sells in PRTA by the company’s own officers, directors, and large holders, as reported to the SEC on Form 4 in roughly the last 30 days. New to the filing? Read what a Form 4 is and what the transaction codes mean.
Daily buy vs sell dollars
Open-market insider filings that passed the significance gates, last 30 days
Bought
$256K
30 days
Sold
$0
30 days
Net flow
+$256K
buying leads
Active days
1
with gated filings
| Filed (ET) | Insider | Action | Value |
|---|---|---|---|
| Sep 3 | SCULLY WILLIAM P10% owner | BUY | $256k |
| Aug 21 | SCULLY WILLIAM P10% owner | BUY | $439k |
| Aug 10 | SCULLY WILLIAM P10% owner | BUY | $323k |
Sourced from public SEC Form 4 filings. Buys shown are open-market purchases; routine grants and plan sales are filtered out before a trade reaches this log.
See the latest alerts across all stocks, the complete scored track record, this week’s insider buying, or the congress trading tracker.
Get the Next PRTA Alert When It Fires.
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Try Free for 7 DaysPast performance is not indicative of future results. Directional scoring measures a catalyst-matched window on daily closing prices and does not reflect fees, slippage, taxes, or execution. InsiderWatch is an informational service based on publicly available information only and is not financial, investment, legal, or tax advice. Outcomes are scored automatically against public market data by our own systems and are not independently audited.