PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

Rockbridge Investment Management, LCC's Holding History (CIK: 0001821984)

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

Q2 2022

Shares 100 Value ($000) $3 Avg Close $29.25 Range $21.06 - $40.31

Q1 2022

Shares 100 Value ($000) $4 Avg Close $36.05 Range $29.53 - $49.77

Q4 2021

Shares 100 Value ($000) $5 Avg Close $55.45 Range $40.50 - $74.32

Q3 2021

Shares 100 Value ($000) $7 Avg Close $62.11 Range $45.09 - $79.75

Q2 2021

Shares 100 Value ($000) $5 Avg Close $31.20 Range $21.30 - $59.74

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2022	100	$3	$29.25	$21.06 - $40.31
Q1 2022	100	$4	$36.05	$29.53 - $49.77
Q4 2021	100	$5	$55.45	$40.50 - $74.32
Q3 2021	100	$7	$62.11	$45.09 - $79.75
Q2 2021	100	$5	$31.20	$21.30 - $59.74