CASTLE BIOSCIENCES INC

Ticker: CSTL CUSIP: 14843C105 Class: Common Stock

CITADEL ADVISORS LLC's Holding History (CIK: 0001423053)

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

Q4 2025

Shares 366,356 Value ($000) $14,251 Avg Close $32.24 Range $22.05 - $42.17

Q3 2025

Shares 250,915 Value ($000) $5,713 Avg Close $20.31 Range $14.59 - $24.74

Q2 2025

Shares 888,515 Value ($000) $18,143 Avg Close $18.51 Range $15.45 - $22.82

Q1 2025

Shares 258,382 Value ($000) $5,173 Avg Close $24.76 Range $18.70 - $32.74

Q4 2024

Shares 834,512 Value ($000) $22,240 Avg Close $30.46 Range $25.82 - $35.84

Q3 2024

Shares 633,016 Value ($000) $18,054 Avg Close $25.45 Range $16.96 - $32.53

Q2 2024

Shares 693,385 Value ($000) $15,095 Avg Close $22.28 Range $18.50 - $25.91

Q1 2024

Shares 655,766 Value ($000) $14,525 Avg Close $21.76 Range $17.42 - $25.60

Q4 2023

Shares 328,749 Value ($000) $7,094 Avg Close $17.60 Range $12.07 - $22.66

Q3 2023

Shares 518,058 Value ($000) $8,750 Avg Close $17.49 Range $13.18 - $20.96

Q2 2023

Shares 56,283 Value ($000) $772 Avg Close $20.26 Range $9.26 - $26.70

Q1 2023

Shares 660,956 Value ($000) $15,017 Avg Close $24.43 Range $18.79 - $29.59

Q4 2022

Shares 551,315 Value ($000) $12,978 Avg Close $23.18 Range $17.82 - $30.08

Q3 2022

Shares 732,655 Value ($000) $19,108 Avg Close $28.03 Range $21.78 - $36.09

Q2 2022

Shares 630,596 Value ($000) $13,841 Avg Close $23.24 Range $15.58 - $47.27

Q1 2022

Shares 187,007 Value ($000) $8,389 Avg Close $41.32 Range $31.46 - $48.40

Q4 2021

Shares 97,886 Value ($000) $4,196 Avg Close $52.25 Range $37.99 - $68.65

Q3 2021

Shares 230,439 Value ($000) $15,324 Avg Close $70.37 Range $57.64 - $78.58

Q2 2021

Shares 60,005 Value ($000) $4,400 Avg Close $66.05 Range $48.01 - $78.92

Q1 2021

Shares 60,092 Value ($000) $4,114 Avg Close $75.16 Range $56.74 - $107.69

Q4 2020

Shares 9,989 Value ($000) $670 Avg Close $54.21 Range $43.37 - $78.39

Q3 2020

Shares 59,796 Value ($000) $3,076 Avg Close $44.49 Range $36.15 - $52.41

Q2 2020

Shares 61,402 Value ($000) $2,315 Avg Close $34.17 Range $25.07 - $44.53

Q4 2019

Shares 8,900 Value ($000) $305 Avg Close $24.45 Range $15.26 - $39.77

Q3 2019

Shares 30,675 Value ($000) $555 Avg Close $22.17 Range $17.10 - $28.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	366,356	$14,251	$32.24	$22.05 - $42.17
Q3 2025	250,915	$5,713	$20.31	$14.59 - $24.74
Q2 2025	888,515	$18,143	$18.51	$15.45 - $22.82
Q1 2025	258,382	$5,173	$24.76	$18.70 - $32.74
Q4 2024	834,512	$22,240	$30.46	$25.82 - $35.84
Q3 2024	633,016	$18,054	$25.45	$16.96 - $32.53
Q2 2024	693,385	$15,095	$22.28	$18.50 - $25.91
Q1 2024	655,766	$14,525	$21.76	$17.42 - $25.60
Q4 2023	328,749	$7,094	$17.60	$12.07 - $22.66
Q3 2023	518,058	$8,750	$17.49	$13.18 - $20.96
Q2 2023	56,283	$772	$20.26	$9.26 - $26.70
Q1 2023	660,956	$15,017	$24.43	$18.79 - $29.59
Q4 2022	551,315	$12,978	$23.18	$17.82 - $30.08
Q3 2022	732,655	$19,108	$28.03	$21.78 - $36.09
Q2 2022	630,596	$13,841	$23.24	$15.58 - $47.27
Q1 2022	187,007	$8,389	$41.32	$31.46 - $48.40
Q4 2021	97,886	$4,196	$52.25	$37.99 - $68.65
Q3 2021	230,439	$15,324	$70.37	$57.64 - $78.58
Q2 2021	60,005	$4,400	$66.05	$48.01 - $78.92
Q1 2021	60,092	$4,114	$75.16	$56.74 - $107.69
Q4 2020	9,989	$670	$54.21	$43.37 - $78.39
Q3 2020	59,796	$3,076	$44.49	$36.15 - $52.41
Q2 2020	61,402	$2,315	$34.17	$25.07 - $44.53
Q4 2019	8,900	$305	$24.45	$15.26 - $39.77
Q3 2019	30,675	$555	$22.17	$17.10 - $28.50