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Equibles

Qube Research & Technologies Ltd

Position in CSTL — Castle Biosciences Inc

CIK 1729829 LONDON, X0
Back to CSTL Full portfolio

Position in CSTL

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$14,054,805
+$317,043 QoQ
Shares Held
589,300
+5.3% QoQ
Ownership
1.93%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#14
of 176 holders
Holding Since
Dec 2020
15 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

Qube Research & Technologies Ltd holds $925,783,255 across 15 Diagnostics & Research names. CSTL ranks #10 (1.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 TMO
Thermo Fisher Scientific Inc.
 492,580 $246,959,908
2 A
Agilent Technologies, Inc.
 1,415,364 $188,002,800
3 DHR
Danaher Corp /De/
 844,514 $160,863,026
4 IDXX
Idexx Laboratories Inc /De
 148,395 $78,121,063
5 DGX
Quest Diagnostics Inc
 343,398 $72,783,206
6 IQV
Iqvia Holdings Inc.
 279,086 $53,924,996
7 NTRA
Natera, Inc.
 161,079 $43,724,894
8 GH
Guardant Health, Inc.
 156,236 $23,440,087

All Filings in CSTL

Export CSV
15 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $14,054,805 589,300
2026-03-31 $13,737,762 559,583
2025-12-31 $9,161,650 235,518
2025-09-30 $5,031,281 220,961
2025-06-30 $3,931,932 192,553
2025-03-31 $5,592,867 279,364
2024-12-31 $5,797,547 217,544
2024-09-30 $1,649,739 57,845
2023-06-30 $174,230 12,699
2022-06-30 $412,484 18,792
2021-12-31 $549,336 12,814
2021-09-30 $433,247 6,515
2021-06-30 $664,883 9,067
2021-03-31 $571,572 8,349
2020-12-31 $535,722 7,978