SWANSON CHAD J.

PrivateCIK: 2038509
Location

BRISBANE, CA

SWANSON CHAD J. (Chief Development Officer) 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
InsiderSWANSON CHAD J.CIK 2038509
→
Officer· Chief Development Officer
Since Mar 2026
-44.27K
Net shares
Net seller
$378.9K
Total sold
0
Open market trades
0B · 0S
4
Total transactions
51K acquired · 95.27K disposed
Non-Derivative Transactions3

Ordinary Shares, par value $0.01 per share

Direct
M · Option Exercise

Shares

+51K

Price / share

—

Trade value

—

% of position

150.0%
7/28/2026
34K→85K

Ordinary Shares, par value $0.01 per share

Direct
D · Disposition

Shares

−40.80K

Price / share

$8.56

Trade value

$349.25K

% of position

48.0%
7/28/2026
85K→44.20K

Ordinary Shares, par value $0.01 per share

Direct
F · Tax Withholding

Shares

−3.47K

Price / share

$8.56

Trade value

$29.68K

% of position

7.8%
7/28/2026
44.20K→40.73K
Total

Net shares

+6.73K

Net value

-$378.93K

Derivative Transactions1

Restricted Stock Units

Direct
M · Option Exercise
Converts to

Ordinary Shares

51K shares

Shares

−51K

Strike price

Held after

0.00

Exercisable

—

7/28/2026
SWANSON CHAD J. — Insider Transaction (Form 4) Filed Jul 31, 2026 | Finecho