RTW INVESTMENTS, LP: TANGO THERAPEUTICS INC (TNGX): Quarterly 13F Position History
As of Q1 2026, RTW INVESTMENTS, LP reported 13,300,620 shares of TANGO THERAPEUTICS INC (TNGX), worth $278.2M and representing 2.8% of its 13F equity book. Quarter-over-quarter share count change: + 11,809,392 (+791.9%) . The position first appeared in Q3 2021 and has been disclosed across 19 13F-HR filings in Pactolio's tracked window.
- 13,300,620Shares Held (Latest Filing)
- $278.2MReported Market Value (Latest Filing)
- 2.8%Portfolio Weight (% of 13F Equity Book)
- +11,809,392Quarter-over-Quarter Share Change
- +$265.0MQuarter-over-Quarter Value Change
- 13,300,620Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 19 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 13,300,620 | +11,809,392 | +791.9% | $278.2M | 2.8% | $20.9 |
| Q4 2025 | 1,491,228 | +1,491,228 | — | $13.2M | 0.1% | $8.9 |
| Q3 2025 | 0 | 0 | — | $0 | 0.0% | — |
| Q2 2025 | 0 | 0 | — | $0 | 0.0% | — |
| Q1 2025 | 0 | 0 | — | $0 | 0.0% | — |
| Q4 2024 | 0 | 0 | — | $0 | 0.0% | — |
| Q3 2024 | 0 | 0 | — | $0 | 0.0% | — |
| Q2 2024 | 0 | 0 | — | $0 | 0.0% | — |
| Q1 2024 | 0 | 1,966,752 | -100.0% | $0 | 0.0% | — |
| Q4 2023 | 1,966,752 | +1,966,752 | — | $19.5M | 0.3% | $9.9 |
| Q3 2023 | 0 | 0 | — | $0 | 0.0% | — |
| Q2 2023 | 0 | 0 | — | $0 | 0.0% | — |
| Q1 2023 | 0 | 0 | — | $0 | 0.0% | — |
| Q4 2022 | 0 | 0 | — | $0 | 0.0% | — |
| Q3 2022 | 0 | 0 | — | $0 | 0.0% | — |
| Q2 2022 | 0 | 0 | — | $0 | 0.0% | — |
| Q1 2022 | 0 | 180,819 | -100.0% | $0 | 0.0% | — |
| Q4 2021 | 180,819 | 419,181 | -69.9% | $2.0M | 0.0% | $10.9 |
| Q3 2021 | 600,000 | — | — | $7.8M | 0.1% | $12.9 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.
When did RTW INVESTMENTS, LP first disclose a TNGX position in 13F-HR filings?
RTW INVESTMENTS, LP first reported TANGO THERAPEUTICS INC (TNGX) on its 13F-HR filing for the period ending 2021-09-30 (Q3 2021). The position has appeared on 19 reported quarters within Pactolio's tracked window.
What was RTW INVESTMENTS, LP's most recent quarter-over-quarter share-count change in TNGX?
Between Q4 2025 and Q1 2026, RTW INVESTMENTS, LP added 11,809,392 shares of TNGX (+791.9%), bringing the total reported position to 13,300,620 shares at a market value of $278.2M.
Does the implied price-per-share represent RTW INVESTMENTS, LP's cost basis in TNGX?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.