CASTLE BIOSCIENCES INC - Common Stock (CSTL)

Historical Holders from Q3 2019 to Q3 2025

Symbol
CSTL on Nasdaq
Type / Class
Equity / Common Stock
Shares outstanding
28,903,706
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares, excl. options
26,525,689
Holdings value
$603,808,452
% of all portfolios
0.001%
Number of holders
170
Number of buys
94
Number of sells
-68
Average buys %
+0%
Average sells %
-0%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of CASTLE BIOSCIENCES INC - Common Stock (CSTL)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BlackRock, Inc. 8.2% $47,017,281 2,338,005 BlackRock, Inc. 31 Mar 2025
VANGUARD GROUP INC 6.54% $36,852,279 1,832,535 The Vanguard Group 31 Dec 2024
Portolan Capital Management, LLC 5.65% $32,399,201 1,611,099 Portolan Capital Management, LLC 07 Apr 2025
DIMENSIONAL FUND ADVISORS LP 5.1% $33,563,827 1,474,089 Dimensional Fund Advisors LP 30 Sep 2025
WASATCH ADVISORS LP 3.5% $20,078,930 998,455 WASATCH ADVISORS LP 31 Mar 2025

Institutional Holders of CASTLE BIOSCIENCES INC - Common Stock (CSTL)

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q3 26,525,689 $603,808,452 +$704,746 $22.77 170
2025 Q2 26,536,136 $541,803,165 +$16,367,707 $20.42 151
2025 Q1 25,785,418 $516,159,447 -$22,608,207 $20.02 180
2024 Q4 26,505,010 $706,396,254 +$8,987,296 $26.65 197
2024 Q3 25,823,597 $736,872,924 +$15,687,154 $28.52 185
2024 Q2 25,237,547 $549,387,569 +$5,246,303 $21.77 158
2024 Q1 24,977,542 $553,239,171 +$24,692,740 $22.15 148
2023 Q4 23,883,435 $515,429,989 +$17,867,692 $21.58 150
2023 Q3 23,151,664 $391,032,725 +$7,780,165 $16.89 133
2023 Q2 22,797,205 $312,778,898 -$3,698,099 $13.72 128
2023 Q1 22,094,408 $501,938,865 +$5,568,015 $22.72 148
2022 Q4 22,279,170 $524,435,055 +$5,715,957 $23.54 152
2022 Q3 21,906,465 $571,186,085 -$14,799,148 $26.08 152
2022 Q2 22,558,449 $495,033,707 -$115,268,932 $21.95 141
2022 Q1 22,780,568 $1,019,269,661 +$62,738,499 $44.86 153
2021 Q4 21,449,510 $918,308,511 -$59,908,643 $42.87 153
2021 Q3 20,974,973 $1,396,164,362 +$40,585,506 $66.5 182
2021 Q2 20,801,213 $1,521,315,172 -$4,483,937 $73.33 176
2021 Q1 21,328,263 $1,459,495,488 +$90,506,347 $68.46 173
2020 Q4 19,063,994 $1,280,953,552 +$376,683,100 $67.15 160
2020 Q3 13,395,783 $689,395,356 +$88,062,594 $51.45 144
2020 Q2 11,747,525 $443,283,646 +$169,050,988 $37.69 125
2020 Q1 7,359,714 $219,391,385 +$66,312,670 $29.81 88
2019 Q4 5,108,808 $175,588,000 +$15,879,309 $34.37 66
2019 Q3 4,868,946 $88,077,000 +$69,427,000 $18.09 56