AMGEN INC (AMGN) Stock Institutional Trading Activity


AMGEN INC (AMGN) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Matrix Advisors Value Fund, Mairs & Power Growth Fund, Cullen Value Fund, Renaissance Technologies LLC, and ARK Invest. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

Explore more:

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2024Mairs & Power Growth FundSell-3415,607$1,461,408
Q4 2024Renaissance Technologies LLCBuy16,80069,045$17,995,889
Q4 2024Matrix Advisors Value FundBuy45,57393,022$24,245,254
Q4 2024Sequoia Financial AdvisorsBuy9,254143,836$37,489,359
Q4 2024Cullen Value FundSell-488,582$2,236,902
Q3 2024Torray FundSell-3,09912,158$3,917,491
Q3 2024ARK InvestBuy1,79376,614$24,685,804
Q3 2024Dodge & Cox Stock FundSell-10014,282$4,601,803
Q3 2024Mairs & Power Growth FundSell-25,948$1,916,505
Q3 2024Matrix Advisors Value FundBuy2,38147,449$15,288,542
Q3 2024Sequoia Financial AdvisorsBuy11,679134,582$43,363,651
Q3 2024Cullen Value FundBuy238,630$2,780,791
Q2 2024Torray FundSell-10,71515,257$4,767,110
Q2 2024ARK InvestBuy23,15574,821$23,377,692
Q2 2024Mairs & Power Growth FundSell-1,3355,950$1,859,078
Q2 2024Matrix Advisors Value FundBuy3,84545,068$14,081,000
Q2 2024Renaissance Technologies LLCSell-2,95552,245$16,323,950
Q2 2024Sequoia Financial AdvisorsBuy4,196122,903$38,401,134
Q2 2024Cullen Value FundSell-778,607$2,689,404
Q1 2024Torray FundBuy12,14125,972$4,308,356
Q1 2024ARK InvestBuy51,66651,666$14,689,687
Q1 2024Renaissance Technologies LLCSell-21,30055,200$15,694
Q1 2024Mairs & Power Growth FundSell-1807,285$2,071,271
Q1 2024Matrix Advisors Value FundSell-93741,223$11,720,523
Q1 2024Sequoia Financial AdvisorsBuy47,466118,707$33,750,774
Q1 2024Cullen Value FundSell-58,684$2,398,627
Q4 2023Torray FundSell-54913,831$3,983,660
Q4 2023Renaissance Technologies LLCBuy12,20076,500$22,034
Q4 2023Mairs & Power Growth FundSell-107,465$2,150,069
Q4 2023Matrix Advisors Value FundBuy14042,160$12,142,923

Frequently asked questions about AMGN activity

  • Which institutional owners are buying AMGN?

    Institutional owners buying AMGN include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in AMGN activity?

    "Buy" means an investor increased their reported position in AMGN compared to the prior reporting period. This reflects growing exposure to AMGEN INC (AMGN) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in AMGN increasing?

    Institutional interest in AMGN can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.