PROTHENA CORP PUBLIC LTD CO

PRTA Balanced

CIK 0001559053 #3165 in the set updated 17 Sep 2026

Bought (120 mo)

$82.16M

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

Sold (120 mo)

$160.27M

$135.97K on a plan · $78.45M straight out of an exercise

Sold at will

$81.68M

4 of 313 sales

Net

−$78.11M

+$475.23K against sales at will

By person

20 insiders · 341 transactions

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Nguyen Tran

Chief Strategy Officer and CFO

$51.32K (1)

$13.25M (28) scheduled

−$13.20M

40,205

0.0783%

$380.81K

—

Kinney Gene G.

President and CEO

—

$10.43M (29) scheduled

−$10.43M

68,793

0.1340%

$651.59K

—

Malecek Michael J

Chief Legal Officer

—

$9.34M (36) scheduled

−$9.34M

80,000

0.1558%

$757.74K

—

Walker Karin L

Chief Accounting Officer

—

$8.87M (47) scheduled

−$8.87M

10,000

0.0195%

$94.72K

—

Zago Wagner M.

Chief Scientific Officer

—

$7.97M (16) scheduled

−$7.97M

34,000

0.0662%

$322.04K

—

SCULLY WILLIAM P

10% owner

$6.87M (15)

—

+$6.87M

1,046,000

2.04%

$9.91M

−1.5%

EcoR1 Capital, LLC entity

10% owner

$75.24M (10)

$81.68M (4)

−$6.44M

16,588,876

32.31%

$157.13M

−19.9%

Ekman Lars

Director

—

$5.35M (18) scheduled

−$5.35M

243

0.0005%

$2.30K

0.0%

Karp Carol D.

Chief Regulatory Officer

—

$4.58M (22) scheduled

−$4.58M

0

0.0000%

$0.00

—

HENNEY CHRISTOPHER S

Director

—

$3.48M (21) scheduled

−$3.48M

0

0.0000%

$0.00

—

Selkoe Dennis J.

Director

—

$3.16M (19) scheduled

−$3.16M

4,208

0.0082%

$39.86K

0.0%

Garren Hideki

Chief Medical Officer

—

$3.06M (20) scheduled

−$3.06M

0

0.0000%

$0.00

—

COLLIER RICHARD T

Director

—

$2.54M (16) scheduled

−$2.54M

1,219

0.0024%

$11.55K

0.0%

Nickerson Tara

Chief Business Officer

—

$2.32M (4) scheduled

−$2.32M

2,000

0.0039%

$18.94K

0.0%

Cooke Shane

Director

—

$2.28M (14) scheduled

−$2.28M

0

0.0000%

$0.00

—

Smith Brandon S.

Chief Operating Officer

—

$1.31M (13) scheduled

−$1.31M

52,000

0.1013%

$492.53K

—

HOMAN ARTHUR W

Chief Legal Officer

—

$511.63K (4) scheduled

−$511.63K

2,000

0.0039%

$18.94K

0.0%

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%

Swanson Chad J.

Chief Development Officer

—

—

—

40,733

0.0793%

$385.81K

—

Individual transactions

2

Insider

Date

Role

Action

Shares

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

Showing 250 of 341 transactions. The figures above use every one of them.

What was left out

Form 4 filings counted 341

Amendments (4/A) skipped 3

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 307

Sales at will 4

Transactions with no price 0

Shares from compensation/vesting 5,745,887

Sales filed before the plan box existed 1

History held since 2 Sep 2016