CASTLE BIOSCIENCES INC

Ticker: CSTL CUSIP: 14843C105 Class: Common Stock

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q4 2025

Shares 262,243 Value ($000) $10,201 Avg Close $32.24 Range $22.05 - $42.17

Q3 2025

Shares 282,267 Value ($000) $6,427 Avg Close $20.31 Range $14.59 - $24.74

Q2 2025

Shares 279,825 Value ($000) $5,714 Avg Close $18.51 Range $15.45 - $22.82

Q1 2025

Shares 273,469 Value ($000) $5,475 Avg Close $24.76 Range $18.70 - $32.74

Q4 2024

Shares 284,587 Value ($000) $7,584 Avg Close $30.46 Range $25.82 - $35.84

Q3 2024

Shares 261,930 Value ($000) $7,470 Avg Close $25.45 Range $16.96 - $32.53

Q2 2024

Shares 238,491 Value ($000) $5,192 Avg Close $22.28 Range $18.50 - $25.91

Q1 2024

Shares 244,388 Value ($000) $5,413 Avg Close $21.76 Range $17.42 - $25.60

Q4 2023

Shares 249,983 Value ($000) $5,395 Avg Close $17.60 Range $12.07 - $22.66

Q3 2023

Shares 243,846 Value ($000) $4,119 Avg Close $17.49 Range $13.18 - $20.96

Q2 2023

Shares 237,084 Value ($000) $3,253 Avg Close $20.26 Range $9.26 - $26.70

Q1 2023

Shares 225,702 Value ($000) $5,128 Avg Close $24.43 Range $18.79 - $29.59

Q4 2022

Shares 230,093 Value ($000) $5,416 Avg Close $23.18 Range $17.82 - $30.08

Q3 2022

Shares 227,468 Value ($000) $5,932 Avg Close $28.03 Range $21.78 - $36.09

Q2 2022

Shares 222,131 Value ($000) $4,875 Avg Close $23.24 Range $15.58 - $47.27

Q1 2022

Shares 212,325 Value ($000) $9,525 Avg Close $41.32 Range $31.46 - $48.40

Q4 2021

Shares 218,662 Value ($000) $9,374 Avg Close $52.25 Range $37.99 - $68.65

Q3 2021

Shares 223,595 Value ($000) $14,869 Avg Close $70.37 Range $57.64 - $78.58

Q2 2021

Shares 222,803 Value ($000) $16,339 Avg Close $66.05 Range $48.01 - $78.92

Q1 2021

Shares 176,974 Value ($000) $12,116 Avg Close $75.16 Range $56.74 - $107.69

Q4 2020

Shares 162,422 Value ($000) $10,907 Avg Close $54.21 Range $43.37 - $78.39

Q3 2020

Shares 154,305 Value ($000) $7,939 Avg Close $44.49 Range $36.15 - $52.41

Q2 2020

Shares 129,635 Value ($000) $4,886 Avg Close $34.17 Range $25.07 - $44.53

Q1 2020

Shares 108,042 Value ($000) $3,221 Avg Close $30.17 Range $21.01 - $36.39

Q4 2019

Shares 56,484 Value ($000) $1,942 Avg Close $24.45 Range $15.26 - $39.77

Q3 2019

Shares 51,197 Value ($000) $926 Avg Close $22.17 Range $17.10 - $28.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	262,243	$10,201	$32.24	$22.05 - $42.17
Q3 2025	282,267	$6,427	$20.31	$14.59 - $24.74
Q2 2025	279,825	$5,714	$18.51	$15.45 - $22.82
Q1 2025	273,469	$5,475	$24.76	$18.70 - $32.74
Q4 2024	284,587	$7,584	$30.46	$25.82 - $35.84
Q3 2024	261,930	$7,470	$25.45	$16.96 - $32.53
Q2 2024	238,491	$5,192	$22.28	$18.50 - $25.91
Q1 2024	244,388	$5,413	$21.76	$17.42 - $25.60
Q4 2023	249,983	$5,395	$17.60	$12.07 - $22.66
Q3 2023	243,846	$4,119	$17.49	$13.18 - $20.96
Q2 2023	237,084	$3,253	$20.26	$9.26 - $26.70
Q1 2023	225,702	$5,128	$24.43	$18.79 - $29.59
Q4 2022	230,093	$5,416	$23.18	$17.82 - $30.08
Q3 2022	227,468	$5,932	$28.03	$21.78 - $36.09
Q2 2022	222,131	$4,875	$23.24	$15.58 - $47.27
Q1 2022	212,325	$9,525	$41.32	$31.46 - $48.40
Q4 2021	218,662	$9,374	$52.25	$37.99 - $68.65
Q3 2021	223,595	$14,869	$70.37	$57.64 - $78.58
Q2 2021	222,803	$16,339	$66.05	$48.01 - $78.92
Q1 2021	176,974	$12,116	$75.16	$56.74 - $107.69
Q4 2020	162,422	$10,907	$54.21	$43.37 - $78.39
Q3 2020	154,305	$7,939	$44.49	$36.15 - $52.41
Q2 2020	129,635	$4,886	$34.17	$25.07 - $44.53
Q1 2020	108,042	$3,221	$30.17	$21.01 - $36.39
Q4 2019	56,484	$1,942	$24.45	$15.26 - $39.77
Q3 2019	51,197	$926	$22.17	$17.10 - $28.50