NGUYEN TRAN

PrivateCIK: 1457013
Location

SOUTH SAN FRANCISCO, CA

NGUYEN TRAN (Chief Strategy Officer and CFO) exercised options at PROTHENA CORP PUBLIC LTD CO

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 1 exercise
InsiderNGUYEN TRANCIK 1457013
Officer· Chief Strategy Officer and CFO
Since Mar 2026
-57K
Net shares
Net seller
$487.9K
Total sold
0
Open market trades
0B · 0S
3
Total transactions
57K acquired · 114K disposed
Non-Derivative Transactions2

Ordinary Shares, par value $0.01 per share

Direct
M · Option Exercise

Shares

+57K

Price / share

Trade value

% of position

141.8%
7/28/2026
40.20K97.20K

Ordinary Shares, par value $0.01 per share

Direct
D · Disposition

Shares

57K

Price / share

$8.56

Trade value

$487.92K

% of position

58.6%
7/28/2026
97.20K40.20K
Total

Net shares

+0.00

Net value

-$487.92K

Derivative Transactions1

Restricted Stock Units

Direct
M · Option Exercise
Converts to

Ordinary Shares

57K shares

Shares

57K

Strike price

Held after

0.00

Exercisable

7/28/2026