PFIZER INC (PFE) Stock Institutional Trading Activity


PFIZER INC (PFE) 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 Kahn Brothers Group, Hancock Classic Value, Causeway Capital Management, Eagle Capital Management, and Cullen Value 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
Q3 2020Hillman Value FundSell-11089,636$3,290
Q3 2020Sequoia Financial AdvisorsBuy102,860102,860$3,775
Q3 2020Renaissance Technologies LLCSell-2,064,897537,041$19,709
Q3 2020Mairs & Power Growth FundSell-251,2792,268,642$83,259
Q3 2020Berkshire HathawayBuy3,711,7803,711,780$136,222
Q3 2020Hancock Classic ValueBuy310,4172,735,935$100,409
Q2 2020Kahn Brothers GroupSell-5,800764,516$24,999,673
Q2 2020Dodge & Cox Stock FundSell-66,683241,587$7,900
Q2 2020Jensen Investment ManagementBuy657,08310,406,823$340,303
Q2 2020Sound Shore ManagementBuy115,9043,477,398$113,711
Q2 2020Matrix Private Capital GroupBuy37912,084$395
Q2 2020Muhlenkamp & CoSell-1,09223,922$782
Q2 2020Hillman Value FundBuy789,746$2,935
Q2 2020Sequoia Financial AdvisorsSell-78,3930$2,993
Q2 2020Mairs & Power Growth FundSell-233,6102,519,921$82,401
Q2 2020Hancock Classic ValueSell-722,5842,425,518$79,314
Q1 2020Kahn Brothers GroupSell-39,468770,316$25,143,114
Q1 2020Dodge & Cox Stock FundSell-80,232308,270$10,062
Q1 2020Jensen Investment ManagementBuy873,7329,749,740$318,232
Q1 2020Sound Shore ManagementBuy1,072,9313,361,494$109,719
Q1 2020Matrix Private Capital GroupBuy4,01711,705$382
Q1 2020Sequoia Financial AdvisorsBuy25,73978,393$2,559
Q1 2020Hillman Value FundBuy6,03289,739$2,929
Q1 2020Renaissance Technologies LLCSell-10,500,6032,601,938$84,927
Q1 2020Mairs & Power Growth FundSell-61,8832,753,531$89,875
Q1 2020Hancock Classic ValueSell-3403,148,102$102,754
Q4 2019Kahn Brothers GroupSell-1,003809,784$31,727,337
Q4 2019Dodge & Cox Stock FundSell-7,550388,502$15,222
Q4 2019Mairs & Power Growth FundSell-1,2282,815,414$110,308
Q4 2019Sound Shore ManagementSell-877,1792,288,563$89,666

Frequently asked questions about PFE activity

  • Which institutional owners are buying PFE?

    Institutional owners buying PFE 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 PFE activity?

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

  • Is institutional interest in PFE increasing?

    Institutional interest in PFE 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.