PROTAGONIST THERAPEUTICS INC

Ticker: PTGX CUSIP: 74366E102 Class: Common Stock

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q4 2025

Shares 73,222 Value ($000) $6,395 Avg Close $81.85 Range $62.24 - $96.54

Q3 2025

Shares 260,854 Value ($000) $17,329 Avg Close $56.84 Range $49.38 - $68.26

Q2 2025

Shares 67,900 Value ($000) $3,753 Avg Close $47.99 Range $39.60 - $57.70

Q1 2025

Shares 67,900 Value ($000) $3,284 Avg Close $41.90 Range $33.70 - $60.60

Q4 2024

Shares 68,225 Value ($000) $2,633 Avg Close $43.60 Range $33.31 - $48.89

Q3 2024

Shares 81,919 Value ($000) $3,686 Avg Close $40.40 Range $32.50 - $48.00

Q2 2024

Shares 95,169 Value ($000) $3,298 Avg Close $29.29 Range $24.22 - $35.96

Q1 2024

Shares 85,400 Value ($000) $2,471 Avg Close $27.21 Range $21.43 - $33.34

Q4 2023

Shares 85,400 Value ($000) $1,958 Avg Close $17.50 Range $13.72 - $23.88

Q3 2023

Shares 87,272 Value ($000) $1,456 Avg Close $19.40 Range $16.33 - $26.81

Q2 2023

Shares 80,200 Value ($000) $2,215 Avg Close $25.03 Range $17.64 - $30.10

Q1 2023

Shares 54,200 Value ($000) $1,247 Avg Close $16.79 Range $10.62 - $25.69

Q4 2022

Shares 54,200 Value ($000) $591 Avg Close $8.44 Range $7.24 - $11.46

Q3 2022

Shares 40,000 Value ($000) $337 Avg Close $9.46 Range $7.68 - $11.97

Q2 2022

Shares 46,000 Value ($000) $364 Avg Close $12.09 Range $6.91 - $25.76

Q1 2022

Shares 126,463 Value ($000) $2,995 Avg Close $28.17 Range $22.56 - $37.05

Q4 2021

Shares 45,900 Value ($000) $1,570 Avg Close $31.61 Range $17.26 - $38.11

Q3 2021

Shares 45,900 Value ($000) $813 Avg Close $42.63 Range $12.80 - $50.54

Q2 2021

Shares 45,900 Value ($000) $2,060 Avg Close $33.01 Range $24.14 - $45.93

Q1 2021

Shares 30,600 Value ($000) $793 Avg Close $25.31 Range $18.82 - $32.10

Q4 2020

Shares 28,000 Value ($000) $564 Avg Close $21.52 Range $17.44 - $25.65

Q3 2020

Shares 28,000 Value ($000) $547 Avg Close $18.76 Range $14.16 - $23.25

Q2 2020

Shares 28,000 Value ($000) $494 Avg Close $12.55 Range $6.00 - $19.67

Q1 2020

Shares 16,100 Value ($000) $114 Avg Close $7.49 Range $5.30 - $9.30

Q4 2019

Shares 12,600 Value ($000) $89 Avg Close $9.93 Range $4.47 - $13.77

Q3 2019

Shares 12,600 Value ($000) $151 Avg Close $12.60 Range $8.26 - $16.67

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	73,222	$6,395	$81.85	$62.24 - $96.54
Q3 2025	260,854	$17,329	$56.84	$49.38 - $68.26
Q2 2025	67,900	$3,753	$47.99	$39.60 - $57.70
Q1 2025	67,900	$3,284	$41.90	$33.70 - $60.60
Q4 2024	68,225	$2,633	$43.60	$33.31 - $48.89
Q3 2024	81,919	$3,686	$40.40	$32.50 - $48.00
Q2 2024	95,169	$3,298	$29.29	$24.22 - $35.96
Q1 2024	85,400	$2,471	$27.21	$21.43 - $33.34
Q4 2023	85,400	$1,958	$17.50	$13.72 - $23.88
Q3 2023	87,272	$1,456	$19.40	$16.33 - $26.81
Q2 2023	80,200	$2,215	$25.03	$17.64 - $30.10
Q1 2023	54,200	$1,247	$16.79	$10.62 - $25.69
Q4 2022	54,200	$591	$8.44	$7.24 - $11.46
Q3 2022	40,000	$337	$9.46	$7.68 - $11.97
Q2 2022	46,000	$364	$12.09	$6.91 - $25.76
Q1 2022	126,463	$2,995	$28.17	$22.56 - $37.05
Q4 2021	45,900	$1,570	$31.61	$17.26 - $38.11
Q3 2021	45,900	$813	$42.63	$12.80 - $50.54
Q2 2021	45,900	$2,060	$33.01	$24.14 - $45.93
Q1 2021	30,600	$793	$25.31	$18.82 - $32.10
Q4 2020	28,000	$564	$21.52	$17.44 - $25.65
Q3 2020	28,000	$547	$18.76	$14.16 - $23.25
Q2 2020	28,000	$494	$12.55	$6.00 - $19.67
Q1 2020	16,100	$114	$7.49	$5.30 - $9.30
Q4 2019	12,600	$89	$9.93	$4.47 - $13.77
Q3 2019	12,600	$151	$12.60	$8.26 - $16.67