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Livermore
Livermore
ZHEN

Gabelli Funds LLC

SEC CIK
0001081407
Latest filing
Aug 12, 2026

BIIB holding history

Biogen Inc. in every 13F filed by Gabelli Funds LLC, 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)
14,100
Value
$3.05M
% of portfolio
<0.1%
Quarters held
22
Since Q1 2021
Holdings of BIIB by Gabelli Funds LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202614,100$3.05M<0.1%00.0%UnchangedHolders
Q1 202614,100$2.58M<0.1%−1,300−8.4%ReducedHolders
Q4 202515,400$2.71M<0.1%+1,300+9.2%AddedHolders
Q3 202514,100$1.98M<0.1%00.0%UnchangedHolders
Q2 202514,100$1.77M<0.1%00.0%UnchangedHolders
Q1 202514,100$1.93M<0.1%00.0%UnchangedHolders
Q4 202414,100$2.16M<0.1%00.0%UnchangedHolders
Q3 202414,100$2.73M<0.1%−300−2.1%ReducedHolders
Q2 202414,400$3.34M<0.1%−300−2.0%ReducedHolders
Q1 202414,700$3.17M<0.1%00.0%UnchangedHolders
Q4 202314,700$3.80M<0.1%−70−0.5%ReducedHolders
Q3 202314,770$3.80M<0.1%+220+1.5%AddedHolders
Q2 202314,550$4.14M<0.1%−200−1.4%ReducedHolders
Q1 202314,750$4.10M<0.1%−175−1.2%ReducedHolders
Q4 202214,925$4.13M<0.1%+25+0.2%AddedHolders
Q3 202214,900$3.98M<0.1%−400−2.6%ReducedHolders
Q2 202215,300$3.12M<0.1%+225+1.5%AddedHolders
Q1 202215,075$3.17M<0.1%00.0%UnchangedHolders
Q4 202115,075$3.62M<0.1%−415−2.7%ReducedHolders
Q3 202115,490$4.38M<0.1%+135+0.9%AddedHolders
Q2 202115,355$5.32M<0.1%+580+3.9%AddedHolders
Q1 202114,775$4.13M<0.1%––Holders

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