13F

Stock

Prothena Corp Plc

Ticker not mapped · held by 4 managers

Reported value

$10.3M

Holders

4

+0 new · −0 exited

Holders’ est. mark

−$123.3K

Price effect on 2 books still in the name

Largest holder

$8.54M

Boxer Capital Management, LLC

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Boxer Capital Management, LLC690K$8.54MHeld
BARCLAYS PLC83.4K$1.03M−$123KCut−$427.1K
NORGES BANK57.5K$711KHeld
Evelyn Partners Investment Management LLP199$2.46K−$293Cut−$293

Positions as of Q1 2025. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.