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Insider · CIK 0001110751

Richard T Collier

director

Files at PRTA (PROTHENA CORP PUBLIC LTD CO). First filing -, latest -.

In brief

Richard T Collier files SEC Form 4 as director at PRTA (PROTHENA CORP PUBLIC LTD CO). No open-market trade is on file; the transactions below are grants, exercises and other rows that carry no view on the price.

A track record needs three past buys with six months of prices behind them; Richard T Collier has 0, so none is measured yet.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 0
$0 bought, $0 sold

Signals

This insider’s open-market buys and sells, scored.

No scored open-market trades yet.

Transactions

Every row this insider has filed, 3 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
May 15, 2026PRTA
PROTHENA CORP PUBLIC LTD CO
AGrant or award
Stock Option (Right to Buy)derivative
+27,000$0.00$027,000May 15, 2026
May 14, 2025PRTA
PROTHENA CORP PUBLIC LTD CO
AGrant or award
Stock Option (Right to Buy)derivative
+20,183$0.00$020,183May 16, 2025
May 15, 2024PRTA
PROTHENA CORP PUBLIC LTD CO
AGrant or award
Stock Option (Right to Buy)derivative
+15,000$0.00$015,000May 17, 2024

Questions about Richard T Collier

Answered from the filings on this page, as of the latest one.

Is Richard T Collier buying or selling?

Richard T Collier has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.

How did Richard T Collier's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Richard T Collier has 0.

Where does Richard T Collier file Form 4?

Richard T Collier has filed Form 4 at PRTA (PROTHENA CORP PUBLIC LTD CO). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Richard T Collier: insider trades and track record | InsiderTell