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.
Explore more:
- PFIZER INC (PFE) stock institutional ownership
- PFIZER INC (PFE) stock insider trading activity
- Stock rankings
| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q4 2019 | Jensen Investment Management | Buy | 514,725 | 8,876,008 | $347,762 |
| Q4 2019 | Matrix Private Capital Group | Buy | 7,688 | 7,688 | $301 |
| Q4 2019 | Muhlenkamp & Co | Sell | -675 | 25,014 | $980 |
| Q4 2019 | Sequoia Financial Advisors | Sell | -18,882 | 52,654 | $2,063 |
| Q4 2019 | Hillman Value Fund | Buy | 59,725 | 83,707 | $3,280 |
| Q4 2019 | Hancock Classic Value | Buy | 313 | 3,148,442 | $123,356 |
| Q4 2019 | Renaissance Technologies LLC | Buy | 8,819,241 | 13,102,541 | $513,358 |
| Q3 2019 | Kahn Brothers Group | Buy | 4,771 | 810,787 | $29,131,577 |
| Q3 2019 | Dodge & Cox Stock Fund | Sell | -1,175 | 396,052 | $14,230 |
| Q3 2019 | Mairs & Power Growth Fund | Buy | 447 | 2,816,642 | $101,202 |
| Q3 2019 | Jensen Investment Management | Buy | 1,946,530 | 8,361,283 | $300,421 |
| Q3 2019 | Matrix Advisors Value Fund | Sell | -201,950 | 5,646 | $203 |
| Q3 2019 | Muhlenkamp & Co | Sell | -96 | 25,689 | $923 |
| Q3 2019 | Sequoia Financial Advisors | Sell | -3,117 | 71,536 | $2,570 |
| Q3 2019 | Hancock Classic Value | Sell | -5,815 | 3,148,129 | $113,112 |
| Q3 2019 | Renaissance Technologies LLC | Buy | 797,259 | 4,283,300 | $153,899 |
| Q2 2019 | Kahn Brothers Group | Buy | 272,427 | 806,016 | $34,916,613 |
| Q2 2019 | Dodge & Cox Stock Fund | Sell | -6,773 | 397,227 | $17,208 |
| Q2 2019 | Mairs & Power Growth Fund | Sell | -11,315 | 2,816,195 | $121,998 |
| Q2 2019 | Sound Shore Management | Sell | -123,849 | 3,165,742 | $137,140 |
| Q2 2019 | Jensen Investment Management | Buy | 1,267,287 | 6,414,753 | $277,887 |
| Q2 2019 | Muhlenkamp & Co | Buy | 100 | 25,785 | $1,117 |
| Q2 2019 | Sequoia Financial Advisors | Sell | -2,807 | 74,653 | $3,234 |
| Q2 2019 | Matrix Advisors Value Fund | Buy | 527 | 207,596 | $8,993 |
| Q2 2019 | Hancock Classic Value | Sell | -39,262 | 3,153,944 | $136,629 |
| Q2 2019 | Renaissance Technologies LLC | Sell | -220,100 | 3,486,041 | $151,015 |
| Q2 2019 | Eagle Capital Management | Buy | 1,125 | 84,677 | $3,668 |
| Q1 2019 | Kahn Brothers Group | Sell | -820 | 533,589 | $22,661,525 |
| Q1 2019 | Muhlenkamp & Co | Sell | -745 | 25,685 | $1,091 |
| Q1 2019 | Dodge & Cox Stock Fund | Sell | -16,643 | 404,000 | $17,158 |
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.