Pfizer Inc - Net Worth and Insider Trading
Pfizer Inc Net Worth
The estimated net worth of Pfizer Inc is at least $444 Million dollars as of 2026-09-06. Pfizer Inc is the 10% Owner of SpringWorks Therapeutics Inc and owns about 4,593,847 shares of SpringWorks Therapeutics Inc (SWTX) stock worth over $216 Million. Pfizer Inc is the 10% Owner of Rhythm Pharmaceuticals Inc and owns about 1,427,639 shares of Rhythm Pharmaceuticals Inc (RYTM) stock worth over $147 Million. Pfizer Inc is also the 10% Owner of Allogene Therapeutics Inc and owns about 22,032,040 shares of Allogene Therapeutics Inc (ALLO) stock worth over $43 Million. Besides these, Pfizer Inc also holds Pyxis Oncology Inc (PYXS) , Imara Inc (IMRA) , Quince Therapeutics Inc (QNCX) , Neoleukin Therapeutics Inc (NLTX) , ICU Medical Inc (ICUI) . Details can be seen in Pfizer Inc's Latest Holdings Summary section.
Disclaimer: The insider information is derived from SEC filings. The estimated net worth is based on the final shares held after open market or private purchases and sales of common stock with a transaction code of "P" or "S" on Form 4, assuming that Pfizer Inc has not made any transactions after 2023-03-17 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.
Transaction Summary of Pfizer Inc
Pfizer Inc Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Pfizer Inc owns 23 companies in total, including Quince Therapeutics Inc (QNCX) , Imara Inc (IMRA) , and SpringWorks Therapeutics Inc (SWTX) among others .
Click here to see the complete history of Pfizer Inc’s form 4 insider trades.
Insider Ownership Summary of Pfizer Inc
| Ticker | Company | Transaction Date | Type of Owner |
|---|---|---|---|
| QNCX | Quince Therapeutics Inc | 2020-06-03 | 10 percent owner |
| IMRA | Imara Inc | 2020-03-16 | 10 percent owner |
| SWTX | SpringWorks Therapeutics Inc | 2019-09-17 | 10 percent owner |
| 2018-11-15 | director & 10 percent owner | ||
| 2018-10-15 | 10 percent owner | ||
| 2017-10-10 | 10 percent owner | ||
| 2015-09-30 | 10 percent owner | ||
| 2015-08-10 | 10 percent owner | ||
| 2014-02-18 | 10 percent owner | ||
| 2014-01-29 | 10 percent owner | ||
| 2013-09-17 | 10 percent owner | ||
| 2013-06-24 | 10 percent owner | ||
| 2007-08-27 | 10 percent owner | ||
| 2003-12-17 | 10 percent owner | ||
| 2003-04-16 | 10 percent owner | ||
| 2020-08-06 | 10 percent owner | ||
| 2020-10-27 | 10 percent owner | ||
| 2020-12-15 | 10 percent owner | ||
| 2023-03-17 | 10 percent owner | ||
| 2022-12-23 | 10 percent owner | ||
| 2020-03-11 | 10 percent owner | ||
| 2023-03-20 | 10 percent owner | ||
| 2014-03-06 | 10 percent owner |
Pfizer Inc Latest Holdings Summary
Pfizer Inc currently owns a total of 8 stocks. Among these stocks, Pfizer Inc owns 4,593,847 shares of SpringWorks Therapeutics Inc (SWTX) as of September 17, 2019, with a value of $216 Million and a weighting of 48.65%. Pfizer Inc owns 1,427,639 shares of Rhythm Pharmaceuticals Inc (RYTM) as of October 10, 2017, with a value of $147 Million and a weighting of 33.06%. Pfizer Inc also owns 22,032,040 shares of Allogene Therapeutics Inc (ALLO) as of October 15, 2018, with a value of $43 Million and a weighting of 9.78%. The other 5 stocks Pyxis Oncology Inc (PYXS) , Imara Inc (IMRA) , Quince Therapeutics Inc (QNCX) , Neoleukin Therapeutics Inc (NLTX) , ICU Medical Inc (ICUI) have a combined weighting of 8.52% among all his current holdings.
Latest Holdings of Pfizer Inc
| Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
|---|---|---|---|---|---|
| SWTX | SpringWorks Therapeutics Inc | 2019-09-17 | 4,593,847 | 46.99 | 215,864,871 |
| RYTM | Rhythm Pharmaceuticals Inc | 2017-10-10 | 1,427,639 | 102.74 | 146,675,631 |
| ALLO | Allogene Therapeutics Inc | 2018-10-15 | 22,032,040 | 1.97 | 43,403,119 |
| PYXS | Pyxis Oncology Inc | 2023-03-17 | 7,032,770 | 3.89 | 27,322,311 |
| IMRA | Imara Inc | 2020-03-16 | 1,557,722 | 6.32 | 9,844,803 |
| QNCX | Quince Therapeutics Inc | 2020-06-03 | 14,400 | 31.32 | 451,008 |
| NLTX | Neoleukin Therapeutics Inc | 2015-08-10 | 48,770 | 3.49 | 170,207 |
| ICUI | ICU Medical Inc | 2018-11-15 | 0 | 167.62 | 0 |
Holding Weightings of Pfizer Inc
Pfizer Inc Form 4 Trading Tracker
According to the SEC Form 4 filings, Pfizer Inc has made a total of 0 transactions in SpringWorks Therapeutics Inc (SWTX) over the past 5 years. The most-recent trade in SpringWorks Therapeutics Inc is the acquisition of 50,000 shares on September 17, 2019, which cost Pfizer Inc around $900,000.
According to the SEC Form 4 filings, Pfizer Inc has made a total of 0 transactions in Rhythm Pharmaceuticals Inc (RYTM) over the past 5 years. The most-recent trade in Rhythm Pharmaceuticals Inc is the acquisition of 40,000 shares on October 10, 2017, which cost Pfizer Inc around $680,000.
According to the SEC Form 4 filings, Pfizer Inc has made a total of 0 transactions in Allogene Therapeutics Inc (ALLO) over the past 5 years. The most-recent trade in Allogene Therapeutics Inc is the acquisition of 55,556 shares on October 15, 2018, which cost Pfizer Inc around $1 Million.
More details on Pfizer Inc's insider transactions can be found in the Insider Trading History of Pfizer Inc table.Insider Trading History of Pfizer Inc
* The information on this page (including Insider Trading Shares, Share Changes, Cost, etc.) is sourced exclusively from Form 4 filings and does not incorporate any data from 13F or 13D/G filings. As a result, it may differ from the values shown on the Guru page.
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Pfizer Inc Trading Performance
GuruFocus tracks the stock performance after each of Pfizer Inc's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Pfizer Inc is 30.77%. GuruFocus also compares Pfizer Inc's trading performance to market benchmark return within the same time period. The performance of stocks bought by Pfizer Inc within 3 months outperforms 4 times out of 7 transactions in total compared to the return of S&P 500 within the same period.
You can select different timeframes to see how Pfizer Inc's insider trading performs compared to the benchmark.
Pfizer Inc Ownership Network
Ownership Network List of Pfizer Inc
Ownership Network Relation of Pfizer Inc

Pfizer Inc Owned Company Details
What does Quince Therapeutics Inc do?
Who are the key executives at Quince Therapeutics Inc?
Pfizer Inc is the 10 percent owner of Quince Therapeutics Inc. Other key executives at Quince Therapeutics Inc include director & Chief Corp. Affairs Officer Brigette Roberts , director & CEO and CMO Dirk Thye , and CBO & COO & CCO Brendan Hannah .
Quince Therapeutics Inc (QNCX) Insider Trades Summary
Over the past 18 months, Pfizer Inc made no insider transaction in Quince Therapeutics Inc (QNCX). Other recent insider transactions involving Quince Therapeutics Inc (QNCX) include a net sale of 50,000 shares made by Luca Benatti ,
In summary, during the past 3 months, insiders sold 0 shares of Quince Therapeutics Inc (QNCX) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 250 shares of Quince Therapeutics Inc (QNCX) were sold and 0 shares were bought by its insiders, resulting in a net sale of 250 shares.
Quince Therapeutics Inc (QNCX)'s detailed insider trading history can be found in Insider Trading Tracker table.
Quince Therapeutics Inc Insider Transactions
Pfizer Inc Mailing Address
Above is the net worth, insider trading, and ownership report for Pfizer Inc. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Pfizer Inc's mailing address is: New York Ny 10001-2192.