RTW INVESTMENTS, LP

CIK

1493215

City

NEW YORK

State / Country

Stock

NTRA — Natera, Inc.

Top Portfolio Positions

87 positions · $10,097,544,596 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio
MDGL	Madrigal Pharmaceuticals, Inc. Healthcare	1,993,687	$1,043,635,333	10.34%
INSM	INSMED Inc Healthcare	4,842,880	$791,907,737	7.84%
PTGX	Protagonist Therapeutics, Inc Healthcare	5,059,053	$533,224,186	5.28%
PTCT	Ptc Therapeutics, Inc. Healthcare	7,746,415	$527,763,253	5.23%
ARGX	Argenx SE Healthcare	709,446	$518,072,941	5.13%
CGON	CG Oncology, Inc. Healthcare	6,984,808	$472,731,805	4.68%
CELC	Celcuity Inc. Healthcare	3,039,621	$346,942,340	3.44%
TNGX	Tango Therapeutics, Inc. Healthcare	13,300,620	$278,248,970	2.76%
ERAS	Erasca, Inc. Healthcare	16,157,175	$261,423,091	2.59%
NTRA	Natera, Inc. Healthcare	1,250,000	$249,987,500	2.48%

Portfolio Trend

25 quarters · across all stocks

Holdings in NTRA

Compact Export CSV

Shares Held

Position Value (USD)

25 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$249,987,500	1,250,000	-16.7%	Shares	Sole	2026-05-15
2025-12-31	$343,635,000	1,500,000	-25.0%	Shares	Sole	2026-02-17
2025-09-30	$321,940,000	2,000,000	-22.9%	Shares	Sole	2025-11-14
2025-06-30	$438,170,386	2,593,645	+0.0%	Shares	Sole	2025-08-14
2025-03-31	$366,753,339	2,593,546	+0.0%	Shares	Sole	2025-05-15
2024-12-31	$410,523,030	2,593,323	0.0%	Shares	Sole	2025-02-14
2024-09-30	$329,222,354	2,593,323	0.0%	Shares	Sole	2024-11-14
2024-06-30	$280,830,947	2,593,323	0.0%	Shares	Sole	2024-08-14
2024-03-31	$237,185,321	2,593,323	0.0%	Shares	Sole	2024-05-15
2023-12-31	$162,445,752	2,593,323	-2.2%	Shares	Sole	2024-02-14
2023-09-30	$117,341,397	2,651,783	+1.5%	Shares	Sole	2023-11-14
2023-06-30	$127,089,360	2,611,783	0.0%	Shares	Sole	2023-08-14
2023-03-31	$145,006,192	2,611,783	+0.1%	Shares	Sole	2023-05-15
2022-12-31	$104,814,898	2,609,283	+18.1%	Shares	Sole	2023-02-14
2022-09-30	$96,810,781	2,209,283	+4.1%	Shares	Sole	2022-11-14
2022-06-30	$75,213,709	2,122,283	+10.7%	Shares	Sole	2022-08-15
2022-03-31	$77,995,072	1,917,283	+3.0%	Shares	Sole	2022-05-16
2021-12-31	$173,914,033	1,862,234	0.0%	Shares	Sole	2022-02-14
2021-09-30	$207,527,356	1,862,234	+8.8%	Shares	Sole	2021-11-15
2021-06-30	$194,389,926	1,712,234	0.0%	Shares	Sole	2021-08-13
2021-03-31	$173,860,240	1,712,234	0.0%	Shares	Sole	2021-05-14
2020-12-31	$170,401,527	1,712,234	+0.1%	Shares	Sole	2021-02-16
2020-09-30	$123,585,952	1,710,769	+11.9%	Shares	Sole	2020-11-16
2020-06-30	$76,242,322	1,529,128	+20.8%	Shares	Sole	2020-08-14
2020-03-31	$37,806,492	1,266,125	—	Shares	Sole	2020-05-15
No 13F history on record for this holder in this stock.