Pfizer Inc.
US ˙ NYSE ˙ US7170811035

SecurityPFE / Pfizer Inc.
InstitutionKeystone Financial Group
Latest Disclosed Ownership76,033 shares
Latest Disclosed Value $ 2,135,002
Keystone Financial Group reports 11.96% increase in ownership of PFE / Pfizer Inc.

On May 13, 2026 - Keystone Financial Group filed a 13F-HR form disclosing ownership of 76,033 shares of Pfizer Inc. (US:PFE) valued at $2,135,007 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 67,909 shares of Pfizer Inc.. This represents a change in shares of 11.96% during the quarter. The current value of the position is $1,979,899 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)
2026-05-13 2026-03-31 13F PFIZER Equtities 717081103 76,033 8,124 11.96 2,135 26.33 0.1436
2026-02-06 2025-12-31 13F PFIZER Equities 717081103 67,909 -16,308 -19.36 1,691 -21.21 0.1251
2025-11-17 2025-09-30 13F/A-1 PFIZER Common Stock 717081103 84,217 -10,989 -11.54 2,146 -7.02 0.1640
2025-11-14 2025-09-30 13F PFIZER Common Stock 717081103 95,206 0 2,308 0.1834
2025-08-13 2025-06-30 13F PFIZER Common Stock 717081103 95,206 5,484 6.11 2,308 1.50 0.2082
2025-05-13 2025-03-31 13F PFIZER Common Stock 717081103 89,722 20,039 28.76 2,274 23.00 0.2311
2025-02-13 2024-12-31 13F PFIZER Common Stock 717081103 69,683 -461 -0.66 1,849 -8.92 0.1818
2025-02-19 2024-09-30 13F/A-3 PFIZER Common Stock 717081103 70,144 9,572 15.80 2,030 19.78 0.2598
2025-02-18 2024-09-30 13F/A-2 PFIZER Common Stock 717081103 16,689 -43,883 2,026 0.2636
2024-11-12 2024-09-30 13F PFIZER Common Stock 717081103 70,144 9,572 2,030 0.6702
2024-07-31 2024-06-30 13F PFIZER Common Stock 717081103 60,572 8,448 16.21 1,695 17.15 0.6070
2024-05-08 2024-03-31 13F PFIZER Common Stock 717081103 52,124 14,215 37.50 1,446 32.54 0.2107
2024-02-14 2023-12-31 13F/A-1 PFIZER Common Stock 717081103 37,909 3,539 10.30 1,091 -4.30 0.1898
2024-02-09 2023-12-31 13F PFIZER Common Stock 717081103 37,909 3,539 1,091 0.1898
2023-11-06 2023-09-30 13F PFIZER Common Stock 717081103 34,370 2,137 6.63 1,140 -3.55 0.1909
2023-08-07 2023-06-30 13F PFIZER Common Stock 717081103 32,233 4,050 14.37 1,182 -18.14 0.2011
2023-02-07 2022-12-31 13F PFIZER Common Stock 717081103 28,183 -111 -0.39 1,444 16.64 0.2851
2022-11-10 2022-09-30 13F PFIZER Common Stock 717081103 28,294 1,040 3.82 1,238 -13.37 0.2510
2022-08-05 2022-06-30 13F PFIZER Common Stock 717081103 27,254 -17 -0.06 1,429 1.20 0.2832
2022-05-13 2022-03-31 13F PFIZER Common Stock 717081103 27,271 1,673 6.54 1,412 -6.61 0.2398
2022-02-11 2021-12-31 13F PFIZER Common Stock 717081103 25,598 3,976 18.39 1,512 62.58 0.2480
2021-11-12 2021-09-30 13F PFIZER Common Stock 717081103 21,622 390 1.84 930 11.91 0.1683
2021-08-13 2021-06-30 13F PFIZER Common Stock 717081103 21,232 202 0.96 831 9.06 0.1505
2021-05-11 2021-03-31 13F PFIZER Common Stock 717081103 21,030 1,330 6.75 762 5.10 0.1484
2021-02-10 2020-12-31 13F PFIZER Common Stock 717081103 19,700 1,080 5.80 725 6.15 0.1508
2020-11-13 2020-09-30 13F PFIZER Common Stock 717081103 18,620 1,050 5.98 683 18.78 0.1677
2020-08-13 2020-06-30 13F PFIZER Common Stock 717081103 17,570 101 0.58 575 0.88 0.1563
2020-05-05 2020-03-31 13F/A-1 PFIZER Common Stock 717081103 17,469 2,039 13.21 570 -5.79 0.1889
2020-05-05 2020-03-31 13F PFIZER Common Stock 717081103 15,430 0 605 162,534.7905
2020-02-06 2019-12-31 13F PFIZER Common Stock 717081103 15,430 384 2.55 605 11.83 0.1625
2019-11-07 2019-09-30 13F PFIZER Common Stock 717081103 15,046 -486 -3.13 541 -19.61 0.1664
2019-08-07 2019-06-30 13F PFIZER Common Stock 717081103 15,532 278 1.82 673 3.86 0.2189
2019-05-07 2019-03-31 13F PFIZER Common Stock 717081103 15,254 802 5.55 648 2.69 0.2305
2019-02-11 2018-12-31 13F PFIZER Common Stock 717081103 14,452 -325 -2.20 631 -3.52 0.2851
2018-11-06 2018-09-30 13F PFIZER Common Stock 717081103 14,777 4,113 38.57 654 68.99 0.2677
2018-08-14 2018-06-30 13F PFIZER Common Stock 717081103 10,664 -288 -2.63 387 0.78 0.2158
2018-05-15 2018-03-31 13F PFIZER Common Stock 717081103 10,952 470 4.48 384 0.52 0.2133
2018-02-09 2017-12-31 13F PFIZER Common Stock 717081103 10,482 10,482 382 0.2374
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.