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Livermore
Livermore
ZHEN

Citadel Advisors LLC

SEC CIK
0001423053
Latest filing
Sep 1, 2026

PEN holding history

Penumbra Inc in every 13F filed by Citadel Advisors LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

PEN overviewAll 13F holders of PENFull Q2 2026 holdings

Shares (Q2 2026)
448,763
Value
$141.7M
% of portfolio
0.1%
Quarters held
22
Since Q1 2021
Holdings of PEN by Citadel Advisors LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026448,763$141.7M0.1%+246,038+121.4%AddedHolders
Q1 2026202,725$66.6M<0.1%−787,550−79.5%ReducedHolders
Q4 2025990,275$307.9M0.2%+19,277+2.0%AddedHolders
Q3 2025970,998$246.0M0.2%+752,006+343.4%AddedHolders
Q2 2025218,992$56.2M<0.1%−565,317−72.1%ReducedHolders
Q1 2025784,309$209.7M0.2%+50,021+6.8%AddedHolders
Q4 2024734,288$174.4M0.2%+322,265+78.2%AddedHolders
Q3 2024412,023$80.1M0.1%+343,005+497.0%AddedHolders
Q2 202469,018$12.4M<0.1%+26,303+61.6%AddedHolders
Q1 202442,715$9.53M<0.1%−48,719−53.3%ReducedHolders
Q4 202391,434$23.0M<0.1%−157,131−63.2%ReducedHolders
Q3 2023248,565$60.1M0.1%−67,478−21.4%ReducedHolders
Q2 2023316,043$108.7M0.1%+15,267+5.1%AddedHolders
Q1 2023300,776$83.8M0.1%+95,126+46.3%AddedHolders
Q4 2022205,650$45.7M0.1%−226,919−52.5%ReducedHolders
Q3 2022432,569$82.0M0.1%+105,936+32.4%AddedHolders
Q2 2022326,633$40.7M0.1%−40,516−11.0%ReducedHolders
Q1 2022367,149$81.6M0.1%+16,522+4.7%AddedHolders
Q4 2021350,627$100.7M0.1%−101,237−22.4%ReducedHolders
Q3 2021451,864$120.4M0.1%−32,614−6.7%ReducedHolders
Q2 2021484,478$132.8M0.1%+202,335+71.7%AddedHolders
Q1 2021282,143$76.3M0.1%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.