Citadel Advisors (Ken Griffin) — PEN Trade History
Quarter-by-quarter changes in the PENUMBRA INC position · CUSIP 70975L107
Currently held · 4.5 YearsFirst seen: 2017 Q1
| Quarter | Filed | Activity | Shares | Δ Shares | Δ % | Value | % Port. |
|---|---|---|---|---|---|---|---|
| 2026 Q2 | 2026-09-02 | Add | 448,763 | 246,038 | +121.4% | $141.7M | 0.02% |
| 2026 Q1 | 2026-05-15 | Reduce | 202,725 | -787,550 | -79.5% | $66.6M | 0.01% |
| 2025 Q4 | 2026-02-17 | Add | 990,275 | 19,277 | +2.0% | $307.9M | 0.05% |
| 2025 Q3 | 2025-11-14 | Add | 970,998 | 752,006 | +343.4% | $246.0M | 0.04% |
| 2025 Q2 | 2025-08-14 | Reduce | 218,992 | -565,317 | -72.1% | $56.2M | 0.01% |
| 2025 Q1 | 2025-05-15 | Add | 784,309 | 50,021 | +6.8% | $209.7M | 0.04% |
| 2024 Q4 | 2025-02-14 | Add | 734,288 | 322,265 | +78.2% | $174.4M | 0.03% |
| 2024 Q3 | 2024-11-14 | Add | 412,023 | 343,005 | +497.0% | $80.1M | 0.01% |
| 2024 Q2 | 2024-08-14 | Add | 69,018 | 26,303 | +61.6% | $12.4M | 0.00% |
| 2024 Q1 | 2024-05-15 | Reduce | 42,715 | -48,719 | -53.3% | $9.5M | 0.00% |
| 2023 Q4 | 2024-02-14 | Reduce | 91,434 | -157,131 | -63.2% | $23.0M | 0.01% |
| 2023 Q3 | 2023-11-14 | Reduce | 248,565 | -67,478 | -21.4% | $60.1M | 0.01% |
| 2023 Q2 | 2023-08-14 | Add | 316,043 | 15,267 | +5.1% | $108.7M | 0.02% |
| 2023 Q1 | 2023-05-15 | Add | 300,776 | 95,126 | +46.3% | $83.8M | 0.02% |
| 2022 Q4 | 2023-02-14 | Reduce | 205,650 | -226,919 | -52.5% | $45.7M | 0.01% |
| 2022 Q3 | 2022-11-14 | Add | 432,569 | 105,936 | +32.4% | $82.0M | 0.02% |
| 2022 Q2 | 2022-08-15 | Reduce | 326,633 | -40,516 | -11.0% | $40.7M | 0.01% |
| 2022 Q1 | 2022-05-16 | New | 367,149 | 367,149 | — | $81.6M | 0.02% |
| 2021 Q3 | 2022-03-11 | Sold out | — | -350,627 | -100.0% | — | — |
| 2021 Q4 | 2022-02-14 | Reduce | 350,627 | -133,851 | -27.6% | $100.7M | 0.02% |
| 2021 Q2 | 2021-08-16 | Add | 484,478 | 202,335 | +71.7% | $132.8M | 0.03% |
| 2021 Q1 | 2021-05-21 | Add | 282,143 | 22,892 | +8.8% | $76.3M | 0.02% |
| 2020 Q4 | 2021-02-16 | Add | 259,251 | 191,162 | +280.8% | $45.4M | 0.01% |
| 2020 Q3 | 2020-11-16 | Reduce | 68,089 | -117,623 | -63.3% | $13.2M | 0.00% |
| 2020 Q2 | 2020-08-14 | Add | 185,712 | 157,818 | +565.8% | $33.2M | 0.01% |
| 2020 Q1 | 2020-05-15 | Reduce | 27,894 | -8,215 | -22.8% | $4.5M | 0.00% |
| 2019 Q4 | 2020-02-14 | New | 36,109 | 36,109 | — | $5.9M | 0.00% |
| 2019 Q2 | 2020-02-14 | — | — | — | — | — | — |
| 2018 Q4 | 2019-11-14 | Sold out | — | -324,032 | -100.0% | — | — |
| 2019 Q3 | 2019-11-14 | New | 324,032 | 324,032 | — | $43.6M | 0.02% |
| 2018 Q2 | 2019-08-14 | — | — | — | — | — | — |
| 2018 Q3 | 2019-05-15 | Sold out | — | -17,287 | -100.0% | — | — |
| 2019 Q1 | 2019-05-15 | New | 17,287 | 17,287 | — | $2.5M | 0.00% |
| 2018 Q1 | 2019-02-14 | Sold out | — | -62,679 | -100.0% | — | — |
| 2017 Q4 | 2018-02-09 | Reduce | 62,679 | -61,120 | -49.4% | $5.9M | 0.00% |
| 2017 Q3 | 2017-11-09 | Add | 123,799 | 74,231 | +149.8% | $11.2M | 0.01% |
| 2017 Q2 | 2017-08-11 | Add | 49,568 | 959 | +2.0% | $4.3M | 0.00% |
| 2017 Q1 | 2017-05-12 | New | 48,609 | 48,609 | — | $4.1M | 0.00% |
| 2016 Q4 | 2017-02-10 | — | — | — | — | — | — |
| 2015 Q4 | 2017-01-31 | — | — | — | — | — | — |
Share counts are split-adjusted. Time held counts consecutive quarters ending with the latest filing; more than ten years shows as ">10 Years".
13F data shows quarter-end positions, is delayed by up to 45 days and covers only long positions in US-listed securities; short positions, most derivatives and non-US assets are not reported.