Not yet filed. No Q3 2026 Form 13F from RTW Investments has been detected on SEC EDGAR yet. The deadline for the quarter ended Sep 30, 2026 is Monday, Nov 16, 2026.
From the fund's 2026 Q2 Form 13F (filed Aug 14, 2026) — the latest quarter fully processed on this site.
| Stock | Shares | Portfolio weight |
|---|---|---|
| MDGL · MADRIGAL PHARMACEUTICALS INC | 1,993,687 | 9.14% |
| ARGX · ARGENX SE - ADR | 709,446 | 5.62% |
| PTCT · PTC THERAPEUTICS, INC. | 7,746,415 | 5.39% |
| PTGX · Protagonist Therapeutics, Inc | 5,061,175 | 5.30% |
| CGON · CG ONCOLOGY INC | 8,514,590 | 5.16% |
| INSM · INSMED Inc | 4,842,880 | 4.41% |
| TNGX · TANGO THERAPEUTICS INC | 13,900,620 | 3.71% |
| SYRE · SPYRE THERAPEUTICS INC | 4,251,996 | 3.22% |
| CELC · Celcuity Inc. | 3,304,903 | 2.95% |
| ERAS · ERASCA INC | 17,946,754 | 2.81% |
Largest increase 2026 Q1 → 2026 Q2: RARE (+113.7% of shares). New position in 2026 Q2: KLRA (2.03% of the portfolio). Largest trim 2026 Q1 → 2026 Q2: AVTX (-79.6% of shares). Exited in 2026 Q2: ARWR, CMPX, FLGT and 6 more.
Full record: RTW Investments fund page · manager profile & 13F-clone record · Q3 2026 season tracker.
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