Chad J. Swanson

CIK: 0002038509

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)1 (14.3%)

Derivative conversions

Awards (A)4 (57.1%)

Compensation grants

Other (G, F, J, C, D, …)2 (28.6%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

PRTA

PROTHENA CORP PUBLIC LTD CO

Officer

Discretionary Trading P&L

Holdings

Transaction History (7 total)

PRTA
PROTHENA CORP PUBLIC LTD CO
Jul 28, 2026
Tax Payment(F)
Direct
3.5K shares at avg. $8.56$30K
PRTA
PROTHENA CORP PUBLIC LTD CO
Jul 28, 2026
Exercise(M)
Direct
51K shares-
PRTA
PROTHENA CORP PUBLIC LTD CO
Jul 28, 2026
Disposition(D)
Direct
40.8K shares at avg. $8.56$349K
PRTA
PROTHENA CORP PUBLIC LTD CO
Mar 3, 2026
Award(A)
Stock Option (Right to Buy)
Direct
190K shares-
PRTA
PROTHENA CORP PUBLIC LTD CO
Jul 28, 2025
Award(A)
Direct
85K shares-
PRTA
PROTHENA CORP PUBLIC LTD CO
Mar 5, 2025
Award(A)
Stock Option (Right to Buy)
Direct
107.5K shares-
PRTA
PROTHENA CORP PUBLIC LTD CO
Oct 1, 2024
Award(A)
Stock Option (Right to Buy)
Direct
40K shares-

		Type	Shares	Price		Ownership
Jul 28, 2026	PRTA PROTHENA CORP PUBLIC LTD CO	Tax Payment(F)	3,467	$8.56	$29,678	Direct
Jul 28, 2026	PRTA PROTHENA CORP PUBLIC LTD CO	Exercise(M)	51,000	-	$0	Direct
Jul 28, 2026	PRTA PROTHENA CORP PUBLIC LTD CO	Disposition(D)	40,800	$8.56	$349,248	Direct
Mar 3, 2026	PRTA PROTHENA CORP PUBLIC LTD CO	Award(A) Stock Option (Right to Buy)	190,000	-	-	Direct
Jul 28, 2025	PRTA PROTHENA CORP PUBLIC LTD CO	Award(A)	85,000	-	-	Direct
Mar 5, 2025	PRTA PROTHENA CORP PUBLIC LTD CO	Award(A) Stock Option (Right to Buy)	107,500	-	-	Direct
Oct 1, 2024	PRTA PROTHENA CORP PUBLIC LTD CO	Award(A) Stock Option (Right to Buy)	40,000	-	-	Direct

1-7 of 7 transactions

About Swanson Chad J.

Swanson Chad J. (SEC CIK 0002038509) files insider reports with the SEC as Chief Development Officer of PROTHENA CORP PUBLIC LTD CO (PRTA).

Signal8 holds 6 ownership filings by Swanson Chad J. (1 Form 3, 5 Form 4), filed between Oct 3, 2024 and Jul 30, 2026. Those filings report 7 transactions, from Oct 1, 2024 to Jul 28, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Swanson Chad J.'s filings is in BRISBANE, CA.

Recent filings by Swanson Chad J.

Jul 28, 2026: Tax withholding of PRTA shares (Form 4, code F).
Jul 28, 2026: Option exercise of PRTA shares (Form 4, code M).
Jul 28, 2026: Disposition to issuer transaction of PRTA shares (Form 4, code D).
Mar 3, 2026: Grant or award of PRTA derivative securities (Form 4, code A).
Jul 28, 2025: Grant or award of PRTA shares (Form 4, code A).

Other insiders filing for PROTHENA CORP PUBLIC LTD CO (PRTA)

SCULLY WILLIAM P, 10% Owner
Fennell Todd W., 10% Owner
Zago Wagner M., Chief Scientific Officer
Walker Karin L, Chief Accounting Officer
Smith Brandon S., Chief Operating Officer
Nguyen Tran, Chief Strategy Officer and CFO

How to read Form 4 transaction codes