Rtw Investments, LP’s Penumbra Inc Position
Does Rtw Investments, LP own Penumbra Inc (PEN)? Not currently — the last reported position was 866.5K shares worth $269M in Q4 2025; the fund’s latest 13F (Q1 2026) no longer reports it.
Position Value
$269M
Q4 2025
Shares
866.5K
% of Portfolio
+2.70%
Quarters Held
19
position exited
Position History PEN
Reported value by quarter
| Quarter | Shares | Value | % of Portfolio |
|---|---|---|---|
| Q4 2025 | 866.5K | $269M | +2.70% |
| Q3 2025 | 866.5K | $220M | +2.70% |
| Q2 2025 | 863.6K | $222M | +3.16% |
| Q1 2025 | 862.8K | $231M | +3.53% |
| Q4 2024 | 862.5K | $205M | +3.10% |
| Q3 2024 | 795.8K | $155M | +2.24% |
| Q2 2024 | 742.1K | $134M | +2.07% |
| Q1 2024 | 675.9K | $151M | +2.23% |
| Q4 2023 | 662.7K | $167M | +2.60% |
| Q3 2023 | 673.4K | $163M | +3.44% |
| Q2 2023 | 673.4K | $232M | +4.41% |
| Q1 2023 | 673.4K | $188M | +3.91% |
| Q4 2022 | 698.4K | $155M | +3.17% |
| Q3 2022 | 698.4K | $132M | +3.05% |
| Q2 2022 | 698.4K | $87M | +2.25% |
| Q1 2022 | 665.9K | $148M | +3.06% |
| Q4 2021 | 620.9K | $178M | +2.60% |
| Q3 2021 | 385.2K | $103M | +1.55% |
| Q4 2020 | 118.3K | $21M | +0.35% |
Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Rtw Investments, LP’s full portfolio or all institutional holders of PEN.