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Leonteq Securities AG

SEC CIK
0001535950
Latest filing
Jul 27, 2026

BIIB holding history

Biogen Inc. in every 13F filed by Leonteq Securities AG, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

BIIB overviewAll 13F holders of BIIBFull Q2 2026 holdings

Shares (Q2 2026)
21,354
Value
$4.61M
% of portfolio
0.3%
Quarters held
20
Since Q2 2021
Holdings of BIIB by Leonteq Securities AG, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202621,354$4.61M0.3%−5,100−19.3%ReducedHolders
Q1 202626,454$4.85M0.3%−1,506−5.4%ReducedHolders
Q4 202527,960$4.92M0.3%+4,843+20.9%AddedHolders
Q3 202523,117$3.24M0.2%−85,751−78.8%ReducedHolders
Q2 2025108,868$13.7M0.8%+27,209+33.3%AddedHolders
Q1 202581,659$11.1M0.8%−32,704−28.6%ReducedHolders
Q4 2024114,363$17.5M1.7%+101,892+817.0%AddedHolders
Q3 202412,471$2.42M0.3%+12,471NewHolders
Q2 20240$00.0%−22,724−100.0%Sold outHolders
Q1 202422,724$4.90M0.7%+14,760+185.3%AddedHolders
Q4 20237,964$2.06M0.3%+1,479+22.8%AddedHolders
Q3 20236,485$1.67M0.2%+1,551+31.4%AddedHolders
Q2 20234,934$1.41M0.1%+4,661+1,707.3%AddedHolders
Q1 2023273$75.9K<0.1%−10,402−97.4%ReducedHolders
Q4 202210,675$2.96M0.2%−5,806−35.2%ReducedHolders
Q3 202216,481$4.40M0.2%−95,302−85.3%ReducedHolders
Q2 2022111,783$22.8M1.1%−11,419−9.3%ReducedHolders
Q1 2022123,202$25.9M1.1%+37,082+43.1%AddedHolders
Q4 202186,120$20.7M0.9%+50,704+143.2%AddedHolders
Q3 202135,416$10.0M0.5%+34,169+2,740.1%AddedHolders
Q2 20211,247$431.8K<0.1%+1,247NewHolders