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Equibles

GEODE CAPITAL MANAGEMENT, LLC

Position in CSTL — Castle Biosciences Inc

CIK 1214717 BOSTON, MA
Back to CSTL Full portfolio

Position in CSTL

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$18,982,501
+$1,107,647 QoQ
Shares Held
795,912
+9.3% QoQ
Ownership
2.61%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#10
of 176 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in CSTL Over Time

Shares Held

Position Value (USD)

Position in Diagnostics & Research

Healthcare · as of Jun 30, 2026

GEODE CAPITAL MANAGEMENT, LLC holds $16,517,996,286 across 38 Diagnostics & Research names. CSTL ranks #25 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 TMO
Thermo Fisher Scientific Inc.
 8,382,401 $4,202,600,564
2 DHR
Danaher Corp /De/
 14,280,335 $2,720,118,210
3 IDXX
Idexx Laboratories Inc /De
 2,562,886 $1,349,205,704
4 A
Agilent Technologies, Inc.
 7,595,644 $1,008,929,392
5 WAT
Waters Corp /De/
 2,636,146 $988,660,195
6 IQV
Iqvia Holdings Inc.
 4,454,134 $860,627,771
7 MTD
Mettler Toledo International Inc/
 612,153 $782,031,578
8 NTRA
Natera, Inc.
 2,750,013 $746,491,028

All Filings in CSTL

Export CSV
26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $18,982,501 795,912
2026-03-31 $17,874,854 728,100
2025-12-31 $27,810,115 714,913
2025-09-30 $15,907,348 698,610
2025-06-30 $14,088,288 689,926
2025-03-31 $13,010,056 649,853
2024-12-31 $16,741,423 628,196
2024-09-30 $17,815,958 624,683
2024-06-30 $13,446,870 617,679
2024-03-31 $12,814,528 578,534
2023-12-31 $12,216,761 566,115
2023-09-30 $9,057,026 536,236
2023-06-30 $6,828,224 497,684
2023-03-31 $11,018,154 484,954
2022-12-31 $10,961,801 465,667
2022-09-30 $11,622,891 445,663
2022-06-30 $9,450,704 430,556
2022-03-31 $17,989,398 401,012
2021-12-31 $16,536,716 385,741
2021-09-30 $24,296,972 365,368
2021-06-30 $24,937,699 340,075
2021-03-31 $19,240,135 281,042
2020-12-31 $15,648,434 233,037
2020-09-30 $10,637,647 206,757
2020-06-30 $4,215,438 111,845
2020-03-31 $3,149,009 105,636