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Company profile

PROTHENA CORP PUBLIC LTD CO insider acquisitions

Company CIK 0001559053 · Reported insider acquisitions and filing context.

Company filings at SEC ↗
PRTA · Nasdaq

These are company listings. A transaction is linked to a particular security only when the filing provides enough information.

Company activity summary

By transaction date, as of October 24, 2026.

7 days30 days90 daysOverlapping periods · securities and currencies kept separate
30-day company acquisitions grouped by security, category, original code, and currency.
Type / codeReported securityTransactionsKnown purchase valueMissing amounts
PurchaseCode POrdinary Shares, par value $0.01 per shareNon-derivative · Currency not specified53,598,3430

Known purchase value sums available amounts for non-derivative purchases only. Missing amounts are excluded. “Currency not specified” does not establish that the amounts share a currency. These summaries use all matching loaded records, while the timeline below covers only the current page.

Transaction timeline

Who reported an acquisition, and when the transaction occurred.

Reported acquisitions by transaction dateEach row is a reporting owner. Select a marker to open its transaction details. Jointly reported transactions appear for each associated reporting owner, without dividing quantities or amounts.SCULLY WILLIAM PSCULLY WILLIAM PSCULLY WILLIAM P · October 14, 2026 · Purchase · Ordinary Shares, par value $0.01 per shareSCULLY WILLIAM P · October 13, 2026 · Purchase · Ordinary Shares, par value $0.01 per shareSCULLY WILLIAM P · October 8, 2026 · Purchase · Ordinary Shares, par value $0.01 per shareSCULLY WILLIAM P · October 7, 2026 · Purchase · Ordinary Shares, par value $0.01 per shareSCULLY WILLIAM P · October 2, 2026 · Purchase · Ordinary Shares, par value $0.01 per shareOct 2, 2026Oct 14, 2026
PurchaseStock awardGift receivedExercise / conversionConversionOther acquisition

5 dated transactions · 1 of 1 reporting owners shown. Select one owner to focus the chart.

View timeline as a table
Transaction dateCompany / securityReporting ownersAcquisition type
Oct 14, 2026PROTHENA CORP PUBLIC LTD COOrdinary Shares, par value $0.01 per shareSCULLY WILLIAM PPurchase
Oct 13, 2026PROTHENA CORP PUBLIC LTD COOrdinary Shares, par value $0.01 per shareSCULLY WILLIAM PPurchase
Oct 8, 2026PROTHENA CORP PUBLIC LTD COOrdinary Shares, par value $0.01 per shareSCULLY WILLIAM PPurchase
Oct 7, 2026PROTHENA CORP PUBLIC LTD COOrdinary Shares, par value $0.01 per shareSCULLY WILLIAM PPurchase
Oct 2, 2026PROTHENA CORP PUBLIC LTD COOrdinary Shares, par value $0.01 per shareSCULLY WILLIAM PPurchase

Only transactions on this page are shown. Date windows end on the latest transaction date in this sample. Joint filings may appear on more than one row. Sales are not included. Share-price charts use a separate data source.

Share price & reported acquisitions

Daily closing prices from a separate source. The date window above also filters prices; reporting-owner and transaction-type selections filter the markers.

Price history is not available

Market-price history is not connected yet.

PRTA · Currency not specified. A marker uses that day's closing price, not the reported transaction price. No price is substituted for a missing trading day.

Reported acquisitions

Filing-date filters apply to the list and timeline. The summary above uses transaction dates.

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Reported insider acquisitions, ordered by filing date, newest first. Currency is shown only when reported.
Filed / transactedReporting ownersType / securityQuantityPrice / reference valueDetails
Trade: PurchaseOrdinary Shares, par value $0.01 per shareNon-derivative security · Code P10,0008.4569 *Value: 84,569Currency not specifiedView ↗
Trade: PurchaseOrdinary Shares, par value $0.01 per shareNon-derivative security · Code P100,0008.3548 *Value: 835,480Currency not specifiedView ↗
Trade: PurchaseOrdinary Shares, par value $0.01 per shareNon-derivative security · Code P90,0008.5656 *Value: 770,904Currency not specifiedView ↗
Trade: PurchaseOrdinary Shares, par value $0.01 per shareNon-derivative security · Code P125,0008.4012 *Value: 1,050,150Currency not specifiedView ↗
Trade: PurchaseOrdinary Shares, par value $0.01 per shareNon-derivative security · Code P100,0008.5724 *Value: 857,240Currency not specifiedView ↗

Reporting owners are associated with a filing. Jointly reported amounts are not allocated to individual owners. Historical coverage is still being built. Read the methodology →