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PROTHENA CORP PUBLIC LTD CO

PRTA Net buying

CIK 0001559053 #3165 in the set updated 17 Sep 2026

Bought (12 mo)

$4.12M

out of their own pocket, the only kind of buying there is

Sold (12 mo)

$135.97K

$135.97K on a plan · $0.00 straight out of an exercise

Sold at will

$0.00

0 of 2 sales

Net

+$3.98M

+$4.12M against sales at will

By person

11 insiders · 11 transactions

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

SCULLY WILLIAM P

10% owner

$4.12M (9)

—

+$4.12M

1,046,000

2.04%

$9.91M

−1.5%

Isaacs Michael John

General Counsel & Company Sec.

—

$71.06K (1) scheduled

−$71.06K

35,745

0.0696%

$338.57K

−26.8%

Kingston Anne Evans

Chief Strategy Officer

—

$64.92K (1) scheduled

−$64.92K

55,782

0.1087%

$528.36K

−16.7%

EcoR1 Capital, LLC entity

10% owner

—

5,304,596

10.33%

$50.24M

−54.2%

Malecek Michael J

Chief Legal Officer

—

80,000

0.1558%

$757.74K

—

Kinney Gene G.

President and CEO

—

68,793

0.1340%

$651.59K

—

Smith Brandon S.

Chief Operating Officer

—

52,000

0.1013%

$492.53K

—

Swanson Chad J.

Chief Development Officer

—

40,733

0.0793%

$385.81K

—

Nguyen Tran

Chief Strategy Officer and CFO

—

40,205

0.0783%

$380.81K

—

Zago Wagner M.

Chief Scientific Officer

—

34,000

0.0662%

$322.04K

—

Walker Karin L

Chief Accounting Officer

—

10,000

0.0195%

$94.72K

—

Individual transactions

Insider

Date

Role

Action

Price

Amount

Isaacs Michael John

29 Jul 2026

General Counsel & Company Sec.

Sold on a plan

8,386

$8.47

$71.06K

Kingston Anne Evans

29 Jul 2026

Chief Strategy Officer

Sold on a plan

7,662

$8.47

$64.92K

Show all 11 transactions →

What was left out

Form 4 filings counted 33

Amendments (4/A) skipped 0

Filings about a different issuer 0

Unreadable filings 0

Joint filings 0

Sales on a Rule 10b5-1 plan 2

Sales straight out of an exercise 0

Sales at will 0

Transactions with no price 0

Shares from compensation/vesting 2,213,565

History held since 2 Sep 2016