AIGH Capital Management LLC

Position in CSTL — Castle Biosciences Inc

CIK 1835943 BALTIMORE, MD

Position in CSTL

as of Mar 31, 2026 · filed Apr 30, 2026 Compact

Position Value

$14,499,254

-$9,802,314 QoQ

Shares Held

590,601

-5.5% QoQ

Ownership

1.95%

of shares outstanding

% of Portfolio

2.97%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2025

3 quarters on record

Voting authority Sole 73% Shared 27% None 0%

Healthcare · as of Mar 31, 2026

AIGH Capital Management LLC holds $43,968,009 across 3 Diagnostics & Research names. CSTL ranks #2 (33.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	PSNL	Personalis, Inc.	2,900,000	$18,472,999
2	CSTL	Castle Biosciences Inc This page	590,601	$14,499,254
3	BDSX	Biodesix Inc	758,328	$10,995,756

3 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$14,499,254	590,601	-5.5%	Shares	Other	2026-04-30
2025-12-31	$24,301,568	624,719	-11.7%	Shares	Other	2026-02-02
2025-09-30	$16,104,924	707,287	—	Shares	Other	2025-10-31
No filing history on record for this holder in this stock.