Portolan Capital Management, LLC

Position in NTRA — Natera, Inc.

CIK 1350290 BOSTON, MA

Position in NTRA

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

Position Value

$2,316,011

+$32,526 QoQ

Shares Held

8,532

-25.3% QoQ

Ownership

0.006%

of shares outstanding

% of Portfolio

0.09%

of 13F equity value

Holder Rank

#352

of 846 holders

Holding Since

Sep 2022

13 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. NTRA ranks #4 (5.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CDNA	CareDx, Inc.	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. This page	8,532	$2,316,011
5	GH	Guardant Health, Inc.	13,897	$2,084,966

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$2,316,011	8,532	-25.3%	Shares	Sole	2026-08-14
2026-03-31	$2,283,485	11,418	-26.8%	Shares	Sole	2026-05-15
2025-12-31	$3,571,054	15,588	0.0%	Shares	Sole	2026-02-17
2025-09-30	$2,509,200	15,588	-24.2%	Shares	Sole	2025-11-13
2025-06-30	$3,473,237	20,559	0.0%	Shares	Sole	2025-08-13
2025-03-31	$2,907,248	20,559	-46.7%	Shares	Sole	2025-05-15
2024-12-31	$6,109,430	38,594	-53.9%	Shares	Sole	2025-02-13
2024-09-30	$10,623,176	83,680	-49.8%	Shares	Sole	2024-11-14
2024-06-30	$18,038,623	166,577	-17.2%	Shares	Sole	2024-08-14
2024-03-31	$18,403,398	201,218	+117.7%	Shares	Sole	2024-05-15
2023-12-31	$5,789,564	92,426	-38.8%	Shares	Sole	2024-02-14
2023-03-31	$8,385,296	151,032	-51.5%	Shares	Sole	2023-05-15
2022-09-30	$13,649,798	311,497	—	Shares	Sole	2022-11-14
No filing history on record for this holder in this stock.