First Bank & Trust

Bank

Position in CSTL — Castle Biosciences Inc

CIK 1692632 BROOKINGS, SD

Position in CSTL

as of Jun 30, 2026 · filed Jul 9, 2026 Compact

Position Value

$443,395

+$38,222 QoQ

Shares Held

18,591

+12.6% QoQ

Ownership

0.061%

of shares outstanding

% of Portfolio

0.13%

of 13F equity value

Holder Rank

of 27 holders

Holding Since

Jun 2021

13 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

First Bank & Trust holds $1,536,956 across 4 Diagnostics & Research names. CSTL ranks #2 (28.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ILMN	Illumina, Inc.	2,641	$464,367
2	CSTL	Castle Biosciences Inc This page	18,591	$443,395
3	TMO	Thermo Fisher Scientific Inc.	717	$359,475
4	DHR	Danaher Corp /De/	1,416	$269,719

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$443,395	18,591	+12.6%	Shares	Sole	2026-07-09
2026-03-31	$405,173	16,504	-1.2%	Shares	Sole	2026-04-10
2025-12-31	$649,863	16,706	-15.6%	Shares	Sole	2026-01-12
2025-09-30	$450,823	19,799	-0.8%	Shares	Sole	2025-10-10
2025-06-30	$407,399	19,951	+31.8%	Shares	Sole	2025-07-09
2025-03-31	$303,022	15,136	+75.5%	Shares	Sole	2025-04-28
2024-12-31	$229,829	8,624	-5.9%	Shares	Sole	2025-02-03
2024-09-30	$261,357	9,164	+17.2%	Shares	Sole	2024-10-24
2022-06-30	$171,605	7,818	+90.2%	Shares	Sole	2022-07-22
2022-03-31	$184,373	4,110	+21.7%	Shares	Sole	2022-04-29
2021-12-31	$144,771	3,377	+226.9%	Shares	Sole	2022-02-01
2021-09-30	$68,694	1,033	+143.6%	Shares	Sole	2021-10-18
2021-06-30	$31,091	424	—	Shares	Sole	2021-08-10
No filing history on record for this holder in this stock.