Pfizer Inc.
US ˙ NYSE ˙ US7170811035

SecurityPFE / Pfizer Inc.
InstitutionFmr Llc
Latest Disclosed Ownership12,567,358 shares
Latest Disclosed Value $ 352,891,418
Fmr Llc reports 2.38% increase in ownership of PFE / Pfizer Inc.

On May 15, 2026 - Fmr Llc filed a 13F-HR form disclosing ownership of 12,567,358 shares of Pfizer Inc. (US:PFE) valued at $352,891,413 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 12,275,140 shares of Pfizer Inc.. This represents a change in shares of 2.38% during the quarter. The current value of the position is $318,456,852 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F PFIZER COM 717081103 12,567,358 292,218 2.38 352,891 15.46 0.0037
2026-02-17 2025-12-31 13F PFIZER COM 717081103 12,275,140 -2,125,995 -14.76 305,651 -16.70 0.0156
2025-11-13 2025-09-30 13F PFIZER COM 717081103 14,401,135 -3,348,538 -18.87 366,941 -14.72 0.0191
2025-08-14 2025-06-30 13F PFIZER COM 717081103 17,749,673 3,732,975 26.63 430,252 21.14 0.0243
2025-05-12 2025-03-31 13F PFIZER COM 717081103 14,016,698 3,260,678 30.31 355,183 24.47 0.0227
2025-02-13 2024-12-31 13F PFIZER COM 717081103 10,756,020 -3,722,469 -25.71 285,357 -31.90 0.0170
2024-11-13 2024-09-30 13F PFIZER COM 717081103 14,478,489 435,311 3.10 419,007 6.64 0.0255
2024-08-13 2024-06-30 13F PFIZER COM 717081103 14,043,178 1,435,790 11.39 392,928 12.31 0.0251
2024-05-13 2024-03-31 13F PFIZER COM 717081103 12,607,388 2,606,078 26.06 349,855 21.50 0.0235
2024-02-13 2023-12-31 13F PFIZER COM 717081103 10,001,310 -1,531,708 -13.28 287,938 -24.73 0.0221
2023-11-13 2023-09-30 13F PFIZER COM 717081103 11,533,018 -1,549,720 -11.85 382,550 -20.28 0.0331
2023-08-11 2023-06-30 13F PFIZER COM 717081103 13,082,738 712,456 5.76 479,875 -4.92 0.0402
2023-08-11 2023-03-31 13F/A-1 PFIZER COM 717081103 12,370,282 -350,785 -2.76 504,708 -22.57 0.0462
2023-05-11 2023-03-31 13F PFIZER COM 717081103 12,370,282 -350,785 504,708 0.0462
2023-02-13 2022-12-31 13F PFIZER COM 717081103 12,721,067 -8,716,461 -40.66 651,827 -30.52 0.0647
2022-11-10 2022-09-30 13F PFIZER COM 717081103 21,437,528 712,884 3.44 938,106 -13.67 0.0978
2022-08-12 2022-06-30 13F PFIZER COM 717081103 20,724,644 2,935,073 16.50 1,086,594 17.98 0.1083
2022-05-13 2022-03-31 13F PFIZER COM 717081103 17,789,571 7,499,739 72.88 920,966 51.57 0.0736
2022-02-14 2021-12-31 13F PFIZER COM 717081103 10,289,832 2,062,455 25.07 607,614 71.71 0.0449
2022-02-14 2021-09-30 13F/A-1 PFIZER COM 717081103 8,227,377 3,951,437 92.41 353,861 111.33 0.0281
2021-11-15 2021-09-30 13F PFIZER COM 717081103 8,227,377 3,951,437 353,861 0.0281
2021-08-13 2021-06-30 13F PFIZER COM 717081103 4,275,940 -2,899,010 -40.40 167,445 -35.59 0.0131
2021-05-14 2021-03-31 13F PFIZER COM 717081103 7,174,950 -538,460 -6.98 259,948 -8.45 0.0222
2021-02-08 2020-12-31 13F PFIZER COM 717081103 7,713,410 616,479 8.69 283,931 9.01 0.0253
2020-11-13 2020-09-30 13F PFIZER COM 717081103 7,096,931 669,766 10.42 260,458 23.93 0.0263
2020-08-24 2020-06-30 13F/A-1 PFIZER COM 717081103 6,427,165 -230,416 -3.46 210,168 -3.28 0.0231
2020-08-13 2020-06-30 13F PFIZER COM 717081103 6,427,165 -230,416 210,168 5,163.2127
2020-05-14 2020-03-31 13F PFIZER COM 717081103 6,657,581 -1,118,492 -14.38 217,303 -28.68 0.0301
2020-02-07 2019-12-31 13F PFIZER COM 717081103 7,776,073 221,248 2.93 304,668 12.24 0.0336
2019-11-13 2019-09-30 13F PFIZER COM 717081103 7,554,825 -1,111,684 -12.83 271,444 -27.70 0.0326
2019-08-13 2019-06-30 13F PFIZER COM 717081103 8,666,509 -1,858,807 -17.66 375,433 -16.01 0.0438
2019-05-13 2019-03-31 13F PFIZER COM 717081103 10,525,316 -648,952 -5.81 447,009 -8.35 0.0536
2019-02-13 2018-12-31 13F PFIZER COM 717081103 11,174,268 -3,728,783 -25.02 487,757 -25.73 0.0668
2018-11-09 2018-09-30 13F PFIZER COM 717081103 14,903,051 -2,580,370 -14.76 656,778 3.54 0.0739
2018-08-10 2018-06-30 13F PFIZER COM 717081103 17,483,421 -3,414,357 -16.34 634,299 -14.48 0.0749
2018-05-14 2018-03-31 13F PFIZER COM 717081103 20,897,778 -2,535,523 -10.82 741,662 -12.62 0.0880
2018-02-12 2017-12-31 13F PFIZER COM 717081103 23,433,301 -1,464,593 -5.88 848,754 -4.51 0.0995
2017-11-13 2017-09-30 13F PFIZER COM 717081103 24,897,894 6,212,547 33.25 888,854 41.62 0.1075
2017-08-29 2017-06-30 13F/A-1 PFIZER COM 717081103 18,685,347 33,664 0.18 627,640 -1.64 0.0780
2017-08-11 2017-06-30 13F PFIZER COM 717081103 18,685,347 4,533,347 627,640
2017-05-11 2017-03-31 13F PFIZER COM 717081103 18,651,683 -3,318,655 -15.11 638,074 -10.58 0.0811
2017-02-10 2016-12-31 13F PFIZER COM 717081103 21,970,338 3,958,324 21.98 713,596 16.97 0.0954
2016-11-14 2016-09-30 13F PFIZER COM 717081103 18,012,014 -8,033,562 -30.84 610,067 -33.48 0.0812
2016-08-11 2016-06-30 13F PFIZER COM 717081103 26,045,576 -13,624,614 -34.34 917,064 -22.01 0.1252
2016-05-16 2016-03-31 13F PFIZER COM 717081103 39,670,190 4,516,146 12.85 1,175,824 3.62 0.1627
2016-02-12 2015-12-31 13F PFIZER COM 717081103 35,154,044 1,324,980 3.92 1,134,774 6.80 0.1527
2015-11-10 2015-09-30 13F PFIZER COM 717081103 33,829,064 4,213,131 14.23 1,062,571 7.00 0.1513
2015-08-25 2015-06-30 13F/A-1 PFIZER COM 717081103 29,615,933 -16,060,915 -35.16 993,022 -37.51 0.1273
2015-08-13 2015-06-30 13F PFIZER COM 717081103 29,615,933 993,022
2015-05-14 2015-03-31 13F PFIZER COM 717081103 45,676,848 2,910,037 6.80 1,589,097 19.28 0.2024
2015-02-17 2014-12-31 13F PFIZER COM 717081103 42,766,811 2,644,036 6.59 1,332,186 12.29 0.1733
2014-11-14 2014-09-30 13F PFIZER COM 717081103 40,122,775 -2,192,414 -5.18 1,186,431 -5.53 0.1607
2014-08-14 2014-06-30 13F PFIZER COM 717081103 42,315,189 -5,100,819 -10.76 1,255,916 -17.54 0.1683
2014-05-15 2014-03-31 13F PFIZER COM 717081103 47,416,008 -16,163,659 -25.42 1,523,002 -21.79 0.2115
2014-02-13 2013-12-31 13F PFIZER COM 717081103 63,579,667 -15,093,365 -19.18 1,947,446 -13.78 0.2752
2013-11-14 2013-09-30 13F PFIZER COM 717081103 78,673,032 -17,406,061 -18.12 2,258,702 -16.07 0.3461
2013-09-24 2013-06-30 13F/A-1 PFIZER COM 717081103 96,079,093 96,079,093 2,691,175 0.4405
2013-08-14 2013-06-30 13F PFIZER COM 717081103 96,079,093 2,691,175 0.4405
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.