PROTHENA CORP PLC

Ticker: PRTA CUSIP: G72800108 Class: Common Stock

Rafferty Asset Management, LLC's Holding History (CIK: 0001389426)

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

Q4 2025

Shares 82,553 Value ($000) $788 Avg Close $10.18 Range $9.07 - $11.69

Q1 2025

Shares 43,978 Value ($000) $544 Avg Close $14.14 Range $11.78 - $16.66

Q4 2024

Shares 77,672 Value ($000) $1,076 Avg Close $15.77 Range $11.70 - $18.88

Q3 2024

Shares 62,230 Value ($000) $1,041 Avg Close $21.50 Range $15.52 - $25.42

Q2 2024

Shares 97,019 Value ($000) $2,002 Avg Close $21.64 Range $18.69 - $26.36

Q1 2024

Shares 303,455 Value ($000) $7,517 Avg Close $29.75 Range $24.25 - $41.55

Q4 2023

Shares 207,419 Value ($000) $7,538 Avg Close $38.49 Range $28.51 - $55.89

Q3 2023

Shares 156,840 Value ($000) $7,568 Avg Close $59.41 Range $45.22 - $73.14

Q2 2023

Shares 119,578 Value ($000) $8,165 Avg Close $64.50 Range $47.45 - $79.65

Q1 2023

Shares 141,689 Value ($000) $6,868 Avg Close $52.83 Range $45.06 - $60.82

Q4 2022

Shares 138,353 Value ($000) $8,336 Avg Close $58.56 Range $50.89 - $66.47

Q3 2022

Shares 106,666 Value ($000) $6,467 Avg Close $31.61 Range $25.02 - $64.00

Q2 2022

Shares 81,472 Value ($000) $2,212 Avg Close $29.25 Range $21.06 - $40.31

Q1 2022

Shares 143,547 Value ($000) $5,250 Avg Close $36.05 Range $29.53 - $49.77

Q4 2021

Shares 120,668 Value ($000) $5,961 Avg Close $55.45 Range $40.50 - $74.32

Q3 2021

Shares 40,797 Value ($000) $2,906 Avg Close $62.11 Range $45.09 - $79.75

Q2 2021

Shares 34,176 Value ($000) $1,757 Avg Close $31.20 Range $21.30 - $59.74

Q1 2021

Shares 41,078 Value ($000) $1,032 Avg Close $18.81 Range $10.72 - $28.66

Q3 2020

Shares 23,019 Value ($000) $230 Avg Close $12.03 Range $9.67 - $13.78

Q2 2020

Shares 11,517 Value ($000) $120 Avg Close $11.11 Range $9.25 - $12.98

Q4 2019

Shares 12,482 Value ($000) $198 Avg Close $10.72 Range $7.40 - $17.63

Q3 2019

Shares 38,948 Value ($000) $305 Avg Close $8.88 Range $6.71 - $10.70

Q2 2019

Shares 48,656 Value ($000) $514 Avg Close $10.27 Range $8.67 - $12.54

Q1 2019

Shares 54,881 Value ($000) $666 Avg Close $12.49 Range $9.97 - $14.77

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	82,553	$788	$10.18	$9.07 - $11.69
Q1 2025	43,978	$544	$14.14	$11.78 - $16.66
Q4 2024	77,672	$1,076	$15.77	$11.70 - $18.88
Q3 2024	62,230	$1,041	$21.50	$15.52 - $25.42
Q2 2024	97,019	$2,002	$21.64	$18.69 - $26.36
Q1 2024	303,455	$7,517	$29.75	$24.25 - $41.55
Q4 2023	207,419	$7,538	$38.49	$28.51 - $55.89
Q3 2023	156,840	$7,568	$59.41	$45.22 - $73.14
Q2 2023	119,578	$8,165	$64.50	$47.45 - $79.65
Q1 2023	141,689	$6,868	$52.83	$45.06 - $60.82
Q4 2022	138,353	$8,336	$58.56	$50.89 - $66.47
Q3 2022	106,666	$6,467	$31.61	$25.02 - $64.00
Q2 2022	81,472	$2,212	$29.25	$21.06 - $40.31
Q1 2022	143,547	$5,250	$36.05	$29.53 - $49.77
Q4 2021	120,668	$5,961	$55.45	$40.50 - $74.32
Q3 2021	40,797	$2,906	$62.11	$45.09 - $79.75
Q2 2021	34,176	$1,757	$31.20	$21.30 - $59.74
Q1 2021	41,078	$1,032	$18.81	$10.72 - $28.66
Q3 2020	23,019	$230	$12.03	$9.67 - $13.78
Q2 2020	11,517	$120	$11.11	$9.25 - $12.98
Q4 2019	12,482	$198	$10.72	$7.40 - $17.63
Q3 2019	38,948	$305	$8.88	$6.71 - $10.70
Q2 2019	48,656	$514	$10.27	$8.67 - $12.54
Q1 2019	54,881	$666	$12.49	$9.97 - $14.77