PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

FIRST TRUST ADVISORS LP's Holding History (CIK: 0001125816)

Note: Option positions (PUT/CALL) are excluded.

Q3 2023

Shares 30,709 Value ($000) $1,482 Avg Close $59.41 Range $45.22 - $73.14

Q1 2023

Shares 21,108 Value ($000) $1,023 Avg Close $52.83 Range $45.06 - $60.82

Q4 2022

Shares 62,396 Value ($000) $3,759 Avg Close $58.56 Range $50.89 - $66.47

Q3 2022

Shares 38,808 Value ($000) $2,353 Avg Close $31.61 Range $25.02 - $64.00

Q2 2022

Shares 43,715 Value ($000) $1,187 Avg Close $29.25 Range $21.06 - $40.31

Q1 2022

Shares 49,067 Value ($000) $1,794 Avg Close $36.05 Range $29.53 - $49.77

Q4 2021

Shares 77,148 Value ($000) $3,811 Avg Close $55.45 Range $40.50 - $74.32

Q4 2017

Shares 26,285 Value ($000) $985 Avg Close $50.91 Range $34.85 - $64.96

Q3 2017

Shares 3,267 Value ($000) $212 Avg Close $61.26 Range $52.91 - $70.00

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2023	30,709	$1,482	$59.41	$45.22 - $73.14
Q1 2023	21,108	$1,023	$52.83	$45.06 - $60.82
Q4 2022	62,396	$3,759	$58.56	$50.89 - $66.47
Q3 2022	38,808	$2,353	$31.61	$25.02 - $64.00
Q2 2022	43,715	$1,187	$29.25	$21.06 - $40.31
Q1 2022	49,067	$1,794	$36.05	$29.53 - $49.77
Q4 2021	77,148	$3,811	$55.45	$40.50 - $74.32
Q4 2017	26,285	$985	$50.91	$34.85 - $64.96
Q3 2017	3,267	$212	$61.26	$52.91 - $70.00