RTW Investments NTRA Position
Active7-Fund ConvergenceRTW Investments trimmed their position in Natera Inc. (NTRA) in Q4 2025, holding $343.6M worth of shares across 1,500,000 shares.
The position was first reported in Q1 2023 and has been tracked across 12 quarterly 13F filings.
NTRA is a convergence signal: 7 specialist biotech funds hold this stock, suggesting high institutional conviction.
There is an upcoming Phase 3 readout for Atezolizumab in 259 days (Dec 31, 2026), making the timing of RTW Investments's position particularly relevant.
About Natera Inc.
Natera, Inc., a diagnostics company, develops and commercializes molecular testing services worldwide. It offers Panorama, a non-invasive prenatal test that screens for chromosomal abnormalities of a fetus with a blood draw from the mother, as well as twin pregnancies for zygosity; Vistara, a single-gene mutations screening test to identify single-gene disorder; Horizon carrier screening to determine carrier status for various genetic diseases; and Spectrum to identify chromosomal anomalies or inherited genetic conditions during an in vitro fertilization cycle. The company also provides Anora miscarriage test products to analyze fetal chromosomes to understand the cause of miscarriage; and non-invasive paternity testing products to determine paternity by gestation using a blood draw from the pregnant mother and alleged father. In addition, it offers Constellation, a cloud-based software product that enables laboratory customers to gain access through the cloud to the company's algorithms and bioinformatics in order to validate and launch tests; Signatera, a circulating tumor DNA technology that screen for a generic set of mutations independent of an individual's tumor; and Prospera used to assess organ transplant rejection. The company offers products through its direct sales force, as well as through a network of approximately 100 laboratory and distribution partners. It has a partnership agreement with BGI Genomics Co., Ltd. to develop, manufacture, and commercialize NGS-based genetic testing assays; and Foundation Medicine, Inc. to develop and commercialize personalized circulating tumor DNA monitoring assays. The company was formerly known as Gene Security Network, Inc. and changed its name to Natera, Inc. in 2012. Natera, Inc. was founded in 2003 and is based in Austin, Texas.
Full company profile →Short Interest
2.4%
2.8 days to cover
RTW Investments NTRA Position History
| Quarter | Action | Shares | Change | Value |
|---|---|---|---|---|
| Q4 2025 | Decreased | 1,500,000 | -500,000 | $343.6M |
| Q3 2025 | Decreased | 2,000,000 | -593,645 | $321.9M |
| Q2 2025 | Increased | 2,593,645 | +99 | $438.2M |
| Q1 2025 | Increased | 2,593,546 | +223 | $366.8M |
| Q4 2024 | Held | 2,593,323 | — | $410.5M |
| Q3 2024 | Held | 2,593,323 | — | $329.2M |
| Q2 2024 | Held | 2,593,323 | — | $280.8M |
| Q1 2024 | Held | 2,593,323 | — | $237.2M |
| Q4 2023 | Decreased | 2,593,323 | -58,460 | $162.4M |
| Q3 2023 | Increased | 2,651,783 | +40,000 | $117.3M |
| Q2 2023 | Held | 2,611,783 | — | $127.1M |
| Q1 2023 | New | 2,611,783 | +2,611,783 | $145.0M |
Frequently Asked Questions
Does RTW Investments own NTRA?
Yes. As of Q4 2025, RTW Investments holds 1,500,000 shares of Natera Inc. (NTRA) valued at $343.6M. This data comes from their SEC 13F filing.
How many hedge funds own NTRA?
7 specialist biotech hedge funds currently hold NTRA, including Deerfield Management, Driehaus Capital, OrbiMed Advisors and 3 more. When 3 or more specialist funds hold the same stock, BiotechEdge flags it as a convergence signal.
When did RTW Investments first buy NTRA?
RTW Investments's position in NTRA was first reported in Q1 2023. 13F filings are reported with a 45-day delay, so the actual purchase may have occurred earlier in the quarter.
Is RTW Investments's NTRA position increasing or decreasing?
RTW Investments trimmed their NTRA position in the most recent quarter, reducing by 500,000 shares.
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