Pfizer Inc.
CL ˙ SNSE ˙ US7170811035
SecurityCL:PFE / Pfizer Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership62,026,552 shares
Latest Disclosed Value $ 1,741,705,581
Northern Trust Corp reports 1.94% decrease in ownership of PFE / Pfizer Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 62,026,552 shares of Pfizer Inc. (CL:PFE) valued at $1,741,705,581 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 63,250,589 shares of Pfizer Inc.. This represents a change in shares of -1.94% during the quarter.

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)
2026-05-14 2026-03-31 13F PFIZER COM 717081103 62,026,552 -1,224,037 -1.94 1,741,706 10.59 0.0472
2026-02-17 2025-12-31 13F PFIZER COM 717081103 63,250,589 -769,218 -1.20 1,574,940 -3.45 0.0414
2025-11-14 2025-09-30 13F PFIZER COM 717081103 64,019,807 869,175 1.38 1,631,225 6.56 0.2087
2025-08-13 2025-06-30 13F PFIZER COM 717081103 63,150,632 824,675 1.32 1,530,771 -3.08 0.2105
2025-05-13 2025-03-31 13F PFIZER COM 717081103 62,325,957 3,943,397 6.75 1,579,340 1.97 0.2345
2025-02-14 2024-12-31 13F PFIZER COM 717081103 58,382,560 4,167,222 7.69 1,548,889 -1.28 0.2193
2024-11-13 2024-09-30 13F PFIZER COM 717081103 54,215,338 -2,444,296 -4.31 1,568,992 -1.03 0.2568
2024-08-14 2024-06-30 13F PFIZER COM 717081103 56,659,634 -1,075,190 -1.86 1,585,337 -1.05 0.2671
2024-05-14 2024-03-31 13F PFIZER COM 717081103 57,734,824 -2,070,986 -3.46 1,602,141 -6.95 0.2768
2024-02-13 2023-12-31 13F PFIZER COM 717081103 59,805,810 -3,306,484 -5.24 1,721,809 -17.75 0.3117
2023-11-13 2023-09-30 13F PFIZER COM 717081103 63,112,294 37,110 0.06 2,093,435 -9.52 0.4055
2023-08-11 2023-06-30 13F PFIZER COM 717081103 63,075,184 -3,104,916 -4.69 2,313,598 -14.32 0.4446
2023-05-15 2023-03-31 13F PFIZER COM 717081103 66,180,100 -551,327 -0.83 2,700,148 -21.03 0.5353
2023-02-13 2022-12-31 13F PFIZER COM 717081103 66,731,427 143,652 0.22 3,419,318 17.35 0.7176
2022-11-14 2022-09-30 13F PFIZER COM 717081103 66,587,775 -390,573 -0.58 2,913,881 -17.02 0.6656
2022-08-12 2022-06-30 13F PFIZER COM 717081103 66,978,348 467,468 0.70 3,511,675 1.99 0.7522
2022-05-13 2022-03-31 13F PFIZER COM 717081103 66,510,880 -1,481,305 -2.18 3,443,268 -14.24 0.6057
2022-02-08 2021-12-31 13F PFIZER COM 717081103 67,992,185 153,174 0.23 4,014,939 37.60 0.6577
2021-11-15 2021-09-30 13F PFIZER COM 717081103 67,839,011 3,588,619 5.59 2,917,755 15.97 0.5165
2021-08-13 2021-06-30 13F PFIZER COM 717081103 64,250,392 -802,659 -1.23 2,516,045 6.75 0.4432
2021-05-12 2021-03-31 13F PFIZER COM 717081103 65,053,051 -1,665,724 -2.50 2,356,872 -4.03 0.4384
2021-02-11 2020-12-31 13F PFIZER COM 717081103 66,718,775 -1,909,564 -2.78 2,455,918 -2.49 0.4784
2020-11-16 2020-09-30 13F PFIZER COM 717081103 68,628,339 -105,673 -0.15 2,518,660 12.06 0.5523
2020-08-14 2020-06-30 13F PFIZER COM 717081103 68,734,012 -1,282,041 -1.83 2,247,602 -1.65 0.5325
2020-05-14 2020-03-31 13F PFIZER COM 717081103 70,016,053 -1,167,008 -1.64 2,285,326 -18.06 0.6561
2020-02-14 2019-12-31 13F PFIZER COM 717081103 71,183,061 -1,811,294 -2.48 2,788,951 6.34 0.6242
2019-11-13 2019-09-30 13F PFIZER COM 717081103 72,994,355 -3,447,793 -4.51 2,622,688 -20.80 0.6278
2019-08-13 2019-06-30 13F PFIZER COM 717081103 76,442,148 -252,063 -0.33 3,311,473 1.67 0.7855
2019-05-13 2019-03-31 13F PFIZER COM 717081103 76,694,211 -1,225,406 -1.57 3,257,203 -4.23 0.8045
2019-02-12 2018-12-31 13F PFIZER COM 717081103 77,919,617 2,975,991 3.97 3,401,191 2.98 0.9539
2018-11-14 2018-09-30 13F PFIZER COM 717081103 74,943,626 -1,204,326 -1.58 3,302,766 19.55 0.8083
2018-09-18 2018-06-30 13F/A-1 PFIZER COM 717081103 76,147,952 -2,107,705 -2.69 2,762,647 -0.53 0.7015
2018-08-14 2018-06-30 13F PFIZER COM 717081103 76,577,252 70,860,900 2,778,222
2018-05-09 2018-03-31 13F PFIZER COM 717081103 78,255,657 -1,504,743 -1.89 2,777,293 -3.86 0.7225
2018-02-14 2017-12-31 13F PFIZER COM 717081103 79,760,400 -1,319,862 -1.63 2,888,921 -0.19 0.7316
2017-11-13 2017-09-30 13F PFIZER COM 717081103 81,080,262 3,324,188 4.28 2,894,564 10.83 0.7544
2017-08-11 2017-06-30 13F PFIZER COM 717081103 77,756,074 -1,214,505 -1.54 2,611,828 -3.32 0.7303
2017-05-12 2017-03-31 13F PFIZER COM 717081103 78,970,579 -1,358,436 -1.69 2,701,584 3.55 0.7790
2017-02-13 2016-12-31 13F PFIZER COM 717081103 80,329,015 -1,952,595 -2.37 2,609,085 -6.38 0.8002
2016-11-09 2016-09-30 13F PFIZER COM 717081103 82,281,610 592,775 0.73 2,786,877 -3.11 0.8680
2016-08-12 2016-06-30 13F PFIZER COM 717081103 81,688,835 -857,944 -1.04 2,876,264 17.31 0.9337
2016-08-19 2016-03-31 13F/A-1 PFIZER COM 717081103 82,546,779 -309,907 -0.37 2,451,765 -8.33 0.8133
2016-05-13 2016-03-31 13F Pfizer COMM 717081103 82,546,440 2,446,677
2016-02-12 2015-12-31 13F Pfizer COMM 717081103 82,856,686 -5,616,268 -6.35 2,674,614 -3.75 0.8866
2015-11-12 2015-09-30 13F Pfizer COMM 717081103 88,472,954 -2,800,970 -3.07 2,778,935 -12.49 0.9274
2015-05-14 2015-03-31 13F Pfizer COMM 717081103 91,273,924 -2,303,257 -2.46 3,175,420 8.94 0.9550
2015-02-12 2014-12-31 13F Pfizer COM 717081103 93,577,181 -332,899 -0.35 2,914,928 4.97 0.8800
2014-11-13 2014-09-30 13F PFIZER INC COM COM 717081103 93,910,080 -1,355,824 -1.42 2,776,920 -1.79 0.8721
2014-08-14 2014-06-30 13F PFIZER com 717081103 95,265,904 -965,480 -1.00 2,827,491 -8.52 0.8812
2014-05-14 2014-03-31 13F PFIZER COM 717081103 96,231,384 -2,337,467 -2.37 3,090,952 2.38 0.9724
2014-02-21 2013-12-31 13F/A-1 PFIZER COM 717081103 98,568,851 -880,024 -0.88 3,019,163 5.69 0.9682
2014-02-12 2013-12-31 13F PFIZER COM 717081103 98,568,851 3,019,163
2013-11-13 2013-09-30 13F PFIZER COM 717081103 99,448,875 -3,721,545 -3.61 2,856,668 -1.15 1.0061
2013-08-09 2013-06-30 13F PFIZER COM 717081103 103,170,420 103,170,420 2,889,804 1.0472
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.