Rock Springs Capital Management LP / MRTXEUR
Rock Springs Capital Management LP’s Mirati Therapeutics Inc Position
Does Rock Springs Capital Management LP own Mirati Therapeutics Inc (MRTXEUR)? Not currently — the last reported position was 835.8K shares worth $49M in Q4 2023; the fund’s latest 13F (Q1 2026) no longer reports it.
Position Value
$49M
Q4 2023
Shares
835.8K
% of Portfolio
+1.21%
Quarters Held
21
position exited
Position History MRTXEUR
Reported value by quarter
| Quarter | Shares | Value | % of Portfolio |
|---|---|---|---|
| Q4 2023 | 835.8K | $49M | +1.21% |
| Q3 2023 | 1.13M | $49M | +1.32% |
| Q2 2023 | 1.12M | $41M | +0.96% |
| Q1 2023 | 1.07M | $40M | +0.94% |
| Q4 2022 | 805.0K | $36M | +0.88% |
| Q3 2022 | 866.8K | $61M | +1.56% |
| Q2 2022 | 845.0K | $57M | +1.65% |
| Q1 2022 | 559.7K | $46M | +1.16% |
| Q4 2021 | 410.4K | $60M | +1.39% |
| Q3 2021 | 353.5K | $63M | +1.31% |
| Q2 2021 | 319.1K | $52M | +1.02% |
| Q1 2021 | 323.6K | $55M | +1.21% |
| Q4 2020 | 373.2K | $82M | +1.74% |
| Q3 2020 | 348.8K | $58M | +1.47% |
| Q2 2020 | 348.8K | $40M | +1.09% |
| Q1 2020 | 341.5K | $26M | +1.09% |
| Q4 2019 | 300.0K | $39M | +1.22% |
| Q3 2019 | 257.5K | $20M | +0.80% |
| Q2 2019 | 202.5K | $21M | +0.75% |
| Q1 2019 | 180.0K | $13M | +0.51% |
| Q4 2018 | 150.0K | $6M | +0.30% |
Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Rock Springs Capital Management LP’s full portfolio or all institutional holders of MRTXEUR.