ASTRAZENECA PLC-SPONS ADR (AZN) Stock Institutional Trading Activity


ASTRAZENECA PLC-SPONS ADR (AZN) 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 Causeway Capital Management, Parnassus Endeavor Fund, Sequoia Financial Advisors, Renaissance Technologies LLC, and Dodge & Cox Stock Fund. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2017Renaissance Technologies LLCSell-26,800103,900$3,605
Q3 2017Dodge & Cox Stock FundSell-469,27156,200,178$1,904,062
Q2 2017Dodge & Cox Stock FundSell-237,05056,669,449$1,931,862
Q2 2017Renaissance Technologies LLCSell-1,264,100130,700$4,456
Q1 2017Dodge & Cox Stock FundBuy7,282,41156,906,499$1,772,068
Q4 2016Dodge & Cox Stock FundBuy7,434,11549,624,088$1,355,730
Q4 2016Renaissance Technologies LLCSell-4,307,9001,394,800$38,106
Q4 2016Viking Global InvestorsSell-1,316,4582,859,129$78,111
Q3 2016Dodge & Cox Stock FundBuy9,657,25042,189,973$1,386,363
Q3 2016Viking Global InvestorsBuy4,175,5874,175,587$137,210
Q3 2016Renaissance Technologies LLCSell-263,4005,702,700$187,391
Q2 2016Dodge & Cox Stock FundBuy6,483,07332,532,723$982,163
Q2 2016Renaissance Technologies LLCBuy283,3005,966,100$180,117
Q1 2016Dodge & Cox Stock FundBuy14,272,51826,049,650$733,558
Q1 2016Renaissance Technologies LLCBuy723,1005,682,800$160,028
Q4 2015Dodge & Cox Stock FundBuy11,777,13211,777,132$399,834
Q4 2015Vulcan Value PartnersBuy6,2506,250$212
Q4 2015Renaissance Technologies LLCSell-493,2004,959,700$168,382
Q3 2015Renaissance Technologies LLCBuy1,518,3005,452,900$173,511
Q2 2015Renaissance Technologies LLCBuy780,2003,934,600$250,673
Q1 2015Renaissance Technologies LLCBuy866,5003,154,400$215,856
Q4 2014Renaissance Technologies LLCBuy440,8002,287,900$161,022
Q3 2014Renaissance Technologies LLCBuy52,3001,847,100$131,957
Q2 2014Renaissance Technologies LLCBuy365,8001,794,800$133,372
Q1 2014Renaissance Technologies LLCSell-1,286,4001,429,000$92,714
Q4 2013Chou Associates ManagementBuy13,00013,000$766
Q4 2013Renaissance Technologies LLCSell-198,4002,715,400$161,213
Q3 2013Renaissance Technologies LLCSell-511,9002,913,800$151,314
Q2 2013Renaissance Technologies LLCBuy3,425,7003,425,700$162,036

Frequently asked questions about AZN activity

  • Which institutional owners are buying AZN?

    Institutional owners buying AZN 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 AZN activity?

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

  • Is institutional interest in AZN increasing?

    Institutional interest in AZN 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.