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Livermore
Livermore
ZHEN

Primecap Management Co

SEC CIK
0000763212
Latest filing
Aug 14, 2026

AMGN holding history

Amgen Inc in every 13F filed by Primecap Management Co, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

AMGN overviewAll 13F holders of AMGNFull Q2 2026 holdings

Shares (Q2 2026)
6,756,962
Value
$2.45B
% of portfolio
1.4%
Quarters held
22
Since Q1 2021
Holdings of AMGN by Primecap Management Co, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20266,756,962$2.45B1.4%−2,117,167−23.9%ReducedHolders
Q1 20268,874,129$3.12B2.5%−30,850−0.3%ReducedHolders
Q4 20258,904,979$2.91B2.2%−802,630−8.3%ReducedHolders
Q3 20259,707,609$2.74B2.1%−924,100−8.7%ReducedHolders
Q2 202510,631,709$2.97B2.4%−1,756,586−14.2%ReducedHolders
Q1 202512,388,295$3.86B3.2%−613,830−4.7%ReducedHolders
Q4 202413,002,125$3.39B2.6%−1,253,816−8.8%ReducedHolders
Q3 202414,255,941$4.59B3.4%−191,186−1.3%ReducedHolders
Q2 202414,447,127$4.51B3.3%−154,831−1.1%ReducedHolders
Q1 202414,601,958$4.15B3.1%+10,490+0.1%AddedHolders
Q4 202314,591,468$4.20B3.3%−140,990−1.0%ReducedHolders
Q3 202314,732,458$3.96B3.3%−3,9770.0%ReducedHolders
Q2 202314,736,435$3.27B2.7%−376,268−2.5%ReducedHolders
Q1 202315,112,703$3.65B3.2%−179,510−1.2%ReducedHolders
Q4 202215,292,213$4.02B3.7%−272,657−1.8%ReducedHolders
Q3 202215,564,870$3.51B3.4%−73,750−0.5%ReducedHolders
Q2 202215,638,620$3.80B3.4%−87,435−0.6%ReducedHolders
Q1 202215,726,055$3.80B2.9%−50,100−0.3%ReducedHolders
Q4 202115,776,155$3.55B2.5%−306,532−1.9%ReducedHolders
Q3 202116,082,687$3.42B2.4%−166,385−1.0%ReducedHolders
Q2 202116,249,072$3.96B2.7%−425,500−2.6%ReducedHolders
Q1 202116,674,572$4.15B2.9%––Holders

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