Insider · CIK 0001559422
Karin L Walker
Files at PRTA (PROTHENA CORP PUBLIC LTD CO). First filing Oct 25, 2023, latest Dec 20, 2023.
In brief
Karin L Walker files SEC Form 4 as officer at PRTA (PROTHENA CORP PUBLIC LTD CO). Since Oct 25, 2023, Karin L Walker has reported 0 open-market buys worth $0 and 3 open-market sells worth $561k, the latest filed on Dec 20, 2023.
A track record needs three past buys with six months of prices behind them; Karin L Walker has 0, so none is measured yet.
The newest scored trade: sold $186k of PRTA on Dec 20, 2023, filed Dec 20, 2023, scored 12 (weak), under a 10b5-1 plan.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
PRTA: PROTHENA CORP PUBLIC LTD CO
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 12Weak | PROTHENA CORP PUBLIC LTD CO | $186k 5,000 shares | -100% | +14% from low-53% from high | |
| 11Weak | PROTHENA CORP PUBLIC LTD CO | $170k 5,000 shares | -100% | +1% from low-59% from high | |
| 20Weak | PROTHENA CORP PUBLIC LTD CO | $205k 5,000 shares | -100% | 0% from low-50% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Jan 24, 2024 | PRTA PROTHENA CORP PUBLIC LTD CO | 5,000 0.01% of outstanding | $170k | Jan 24, 2024 | $561k |
| Dec 20, 2023 | PRTA PROTHENA CORP PUBLIC LTD CO | 5,000 0.01% of outstanding | $186k | Dec 20, 2023 | $375k |
| Nov 30, 2023 | PRTA PROTHENA CORP PUBLIC LTD CO | 5,000 0.01% of outstanding | $170k | Nov 30, 2023 | $467k |
| Oct 25, 2023 | PRTA PROTHENA CORP PUBLIC LTD CO | 5,000 0.01% of outstanding | $206k | Oct 25, 2023 | $548k |
Transactions
Every row this insider has filed, 17 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jul 28, 2026 | PRTA PROTHENA CORP PUBLIC LTD CO | MOption exercise Ordinary Shares, par value $0.01 per share | +15,000 | - | - | 25,000 | Jul 30, 2026 |
| Jul 28, 2026 | PRTA PROTHENA CORP PUBLIC LTD CO | DDisposition to issuer Ordinary Shares, par value $0.01 per share | -15,000 | $8.56 | $128k | 10,000 | Jul 30, 2026 |
| Jul 28, 2026 | PRTA PROTHENA CORP PUBLIC LTD CO | MOption exercise Restricted Stock Unitsderivative | -15,000 | $0.00 | $0 | 0 | Jul 30, 2026 |
| Mar 3, 2026 | PRTA PROTHENA CORP PUBLIC LTD CO | AGrant or award Stock Option (Right to Buy)derivative | +150,000 | $0.00 | $0 | 150,000 | Mar 5, 2026 |
| Jul 28, 2025 | PRTA PROTHENA CORP PUBLIC LTD CO | AGrant or award Ordinary Shares, par value $0.01 per share | +25,000 | $0.00 | $0 | 25,000 | Jul 30, 2025 |
| Dec 20, 2023 | PRTA PROTHENA CORP PUBLIC LTD CO | MOption exercise Ordinary Shares, par value $0.01 per share10b5-1 | +5,000 | $13.53 | $68k | 5,000 | Dec 20, 2023 |
| Dec 20, 2023 | PRTA PROTHENA CORP PUBLIC LTD CO | SOpen-market sale Ordinary Shares, par value $0.01 per share10b5-1 | -1,678 | $36.68 | $62k | 3,322 | Dec 20, 2023 |
| Dec 20, 2023 | PRTA PROTHENA CORP PUBLIC LTD CO | SOpen-market sale Ordinary Shares, par value $0.01 per share10b5-1 | -3,322 | $37.45 | $124k | 0 | Dec 20, 2023 |
| Dec 20, 2023 | PRTA PROTHENA CORP PUBLIC LTD CO | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -5,000 | $0.00 | $0 | 20,000 | Dec 20, 2023 |
| Nov 30, 2023 | PRTA PROTHENA CORP PUBLIC LTD CO | MOption exercise Ordinary Shares, par value $0.01 per share10b5-1 | +5,000 | $13.53 | $68k | 5,000 | Nov 30, 2023 |
| Nov 30, 2023 | PRTA PROTHENA CORP PUBLIC LTD CO | SOpen-market sale Ordinary Shares, par value $0.01 per share10b5-1 | -5,000 | $34.00 | $170k | 0 | Nov 30, 2023 |
| Nov 30, 2023 | PRTA PROTHENA CORP PUBLIC LTD CO | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -5,000 | $0.00 | $0 | 25,000 | Nov 30, 2023 |
| Oct 25, 2023 | PRTA PROTHENA CORP PUBLIC LTD CO | MOption exercise Ordinary Shares, par value $0.01 per share10b5-1 | +5,000 | $13.53 | $68k | 5,000 | Oct 25, 2023 |
| Oct 25, 2023 | PRTA PROTHENA CORP PUBLIC LTD CO | SOpen-market sale Ordinary Shares, par value $0.01 per share10b5-1 | -1,789 | $40.27 | $72k | 3,211 | Oct 25, 2023 |
| Oct 25, 2023 | PRTA PROTHENA CORP PUBLIC LTD CO | SOpen-market sale Ordinary Shares, par value $0.01 per share10b5-1 | -2,917 | $41.38 | $121k | 294 | Oct 25, 2023 |
| Oct 25, 2023 | PRTA PROTHENA CORP PUBLIC LTD CO | SOpen-market sale Ordinary Shares, par value $0.01 per share10b5-1 | -294 | $42.28 | $12k | 0 | Oct 25, 2023 |
| Oct 25, 2023 | PRTA PROTHENA CORP PUBLIC LTD CO | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -5,000 | $0.00 | $0 | 30,000 | Oct 25, 2023 |
Questions about Karin L Walker
Answered from the filings on this page, as of the latest one.
Is Karin L Walker buying or selling?
Not in the last 12 months. Karin L Walker's latest open-market trade on SEC Form 4 was sold $186k of PRTA on Dec 20, 2023.
How did Karin L Walker's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Karin L Walker has 0.
Where does Karin L Walker file Form 4?
Karin L Walker has filed Form 4 at PRTA (PROTHENA CORP PUBLIC LTD CO) as Chief Accounting Officer. 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.