Portolan Capital Management, LLC

Position in CDNA — CareDx, Inc.

CIK 1350290 BOSTON, MA

Position in CDNA

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$19,516,942

+$13,608,432 QoQ

Shares Held

684,805

+101.2% QoQ

Ownership

1.32%

of shares outstanding

% of Portfolio

0.73%

of 13F equity value

Holder Rank

#24

of 225 holders

Holding Since

Jun 2022

7 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

Portolan Capital Management, LLC holds $45,511,852 across 5 Diagnostics & Research names. CDNA ranks #1 (42.9% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CDNA	CareDx, Inc. This page	684,805	$19,516,942
2	WGS	GeneDx Holdings Corp.	200,315	$13,751,624
3	CSTL	Castle Biosciences Inc	328,818	$7,842,309
4	NTRA	Natera, Inc.	8,532	$2,316,011
5	GH	Guardant Health, Inc.	13,897	$2,084,966

7 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$19,516,942	684,805	+101.2%	Shares	Sole	2026-08-14
2026-03-31	$5,908,510	340,352	-55.1%	Shares	Sole	2026-05-15
2025-12-31	$14,295,321	758,775	-18.7%	Shares	Sole	2026-02-17
2025-09-30	$13,573,555	933,532	+48.2%	Shares	Sole	2025-11-13
2025-06-30	$12,309,750	629,977	+53.0%	Shares	Sole	2025-08-13
2025-03-31	$7,307,373	411,683	+274.8%	Shares	Sole	2025-05-15
2022-06-30	$2,359,083	109,827	—	Shares	Sole	2022-08-15
No filing history on record for this holder in this stock.