KRYSTAL BIOTECH INC

Ticker: KRYS CUSIP: 501147102 Class: Common Stock

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q4 2025

Shares 20,583 Value ($000) $5,075 Avg Close $210.47 Range $175.85 - $265.92

Q3 2025

Shares 20,882 Value ($000) $3,686 Avg Close $149.68 Range $130.50 - $178.20

Q2 2025

Shares 20,126 Value ($000) $2,767 Avg Close $146.88 Range $122.80 - $182.16

Q1 2025

Shares 20,126 Value ($000) $3,629 Avg Close $168.21 Range $141.72 - $197.94

Q4 2024

Shares 20,388 Value ($000) $3,194 Avg Close $177.39 Range $154.16 - $207.84

Q3 2024

Shares 19,261 Value ($000) $3,506 Avg Close $192.81 Range $164.81 - $219.34

Q2 2024

Shares 18,425 Value ($000) $3,384 Avg Close $167.89 Range $144.00 - $191.78

Q1 2024

Shares 18,660 Value ($000) $3,320 Avg Close $138.91 Range $107.50 - $189.97

Q4 2023

Shares 19,769 Value ($000) $2,453 Avg Close $110.89 Range $93.95 - $129.85

Q3 2023

Shares 20,613 Value ($000) $2,391 Avg Close $122.00 Range $106.92 - $132.68

Q2 2023

Shares 24,209 Value ($000) $2,842 Avg Close $102.10 Range $77.09 - $131.80

Q1 2023

Shares 23,770 Value ($000) $1,903 Avg Close $78.56 Range $69.81 - $89.59

Q4 2022

Shares 24,136 Value ($000) $1,912 Avg Close $74.22 Range $61.11 - $81.97

Q3 2022

Shares 23,866 Value ($000) $1,663 Avg Close $72.25 Range $63.02 - $85.11

Q2 2022

Shares 23,803 Value ($000) $1,563 Avg Close $62.21 Range $47.67 - $74.53

Q1 2022

Shares 23,468 Value ($000) $1,562 Avg Close $62.42 Range $50.03 - $73.94

Q4 2021

Shares 24,416 Value ($000) $1,708 Avg Close $58.21 Range $38.86 - $102.99

Q3 2021

Shares 21,462 Value ($000) $1,121 Avg Close $59.20 Range $51.04 - $72.55

Q2 2021

Shares 24,742 Value ($000) $1,682 Avg Close $69.80 Range $59.29 - $83.00

Q1 2021

Shares 22,732 Value ($000) $1,751 Avg Close $72.70 Range $57.06 - $87.29

Q4 2020

Shares 20,462 Value ($000) $1,228 Avg Close $49.94 Range $40.04 - $62.95

Q3 2020

Shares 20,462 Value ($000) $881 Avg Close $43.43 Range $37.68 - $48.80

Q2 2020

Shares 18,023 Value ($000) $747 Avg Close $48.11 Range $35.33 - $61.86

Q1 2020

Shares 15,854 Value ($000) $686 Avg Close $52.30 Range $33.09 - $66.85

Q4 2019

Shares 16,357 Value ($000) $906 Avg Close $49.06 Range $31.89 - $66.50

Q3 2019

Shares 16,357 Value ($000) $568 Avg Close $44.70 Range $33.62 - $51.67

Q2 2019

Shares 13,491 Value ($000) $543 Avg Close $32.69 Range $22.02 - $46.90

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	20,583	$5,075	$210.47	$175.85 - $265.92
Q3 2025	20,882	$3,686	$149.68	$130.50 - $178.20
Q2 2025	20,126	$2,767	$146.88	$122.80 - $182.16
Q1 2025	20,126	$3,629	$168.21	$141.72 - $197.94
Q4 2024	20,388	$3,194	$177.39	$154.16 - $207.84
Q3 2024	19,261	$3,506	$192.81	$164.81 - $219.34
Q2 2024	18,425	$3,384	$167.89	$144.00 - $191.78
Q1 2024	18,660	$3,320	$138.91	$107.50 - $189.97
Q4 2023	19,769	$2,453	$110.89	$93.95 - $129.85
Q3 2023	20,613	$2,391	$122.00	$106.92 - $132.68
Q2 2023	24,209	$2,842	$102.10	$77.09 - $131.80
Q1 2023	23,770	$1,903	$78.56	$69.81 - $89.59
Q4 2022	24,136	$1,912	$74.22	$61.11 - $81.97
Q3 2022	23,866	$1,663	$72.25	$63.02 - $85.11
Q2 2022	23,803	$1,563	$62.21	$47.67 - $74.53
Q1 2022	23,468	$1,562	$62.42	$50.03 - $73.94
Q4 2021	24,416	$1,708	$58.21	$38.86 - $102.99
Q3 2021	21,462	$1,121	$59.20	$51.04 - $72.55
Q2 2021	24,742	$1,682	$69.80	$59.29 - $83.00
Q1 2021	22,732	$1,751	$72.70	$57.06 - $87.29
Q4 2020	20,462	$1,228	$49.94	$40.04 - $62.95
Q3 2020	20,462	$881	$43.43	$37.68 - $48.80
Q2 2020	18,023	$747	$48.11	$35.33 - $61.86
Q1 2020	15,854	$686	$52.30	$33.09 - $66.85
Q4 2019	16,357	$906	$49.06	$31.89 - $66.50
Q3 2019	16,357	$568	$44.70	$33.62 - $51.67
Q2 2019	13,491	$543	$32.69	$22.02 - $46.90