Pfizer Inc.
CL ˙ SNSE ˙ US7170811035
SecurityCL:PFE / Pfizer Inc.
InstitutionS&co Inc
Latest Disclosed Ownership50,218 shares
Latest Disclosed Value $ 1,410
S&co Inc reports 6.11% decrease in ownership of PFE / Pfizer Inc.

On May 7, 2026 - S&co Inc filed a 13F-HR form disclosing ownership of 50,218 shares of Pfizer Inc. (CL:PFE) valued at $1,410 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 53,488 shares of Pfizer Inc.. This represents a change in shares of -6.11% 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)
2026-05-07 2026-03-31 13F PFIZER COM 717081103 50,218 -3,270 -6.11 1 0.00 0.0875
2026-02-05 2025-12-31 13F PFIZER COM 717081103 53,488 -1,906 -3.44 1 0.00 0.0827
2025-11-06 2025-09-30 13F PFIZER COM 717081103 55,394 -2,255 -3.91 1 0.00 0.0864
2025-08-07 2025-06-30 13F PFIZER COM 717081103 57,649 -1,100 -1.87 1 0.00 0.0896
2025-05-08 2025-03-31 13F PFIZER COM 717081103 58,749 47,049 402.13 1 0.0999
2025-02-07 2024-12-31 13F PFIZER COM 717081103 11,700 0 0.00 0 0.0210
2024-11-07 2024-09-30 13F PFIZER COM 717081103 11,700 0 0.00 0 0.0221
2024-08-08 2024-06-30 13F PFIZER COM 717081103 11,700 -18,998 -61.89 0 0.0228
2024-05-09 2024-03-31 13F PFIZER COM 717081103 30,698 -8,618 -21.92 1 -100.00 0.0599
2024-02-12 2023-12-31 13F PFIZER COM 717081103 39,316 -3,500 -8.17 1 0.00 0.0867
2023-11-09 2023-09-30 13F PFIZER COM 717081103 42,816 1,400 3.38 1 0.00 0.1166
2023-08-08 2023-06-30 13F PFIZER COM 717081103 41,416 8,487 25.77 2 0.00 0.1224
2023-05-09 2023-03-31 13F PFIZER COM 717081103 32,929 -1,645 -4.76 1 0.00 0.1140
2023-02-07 2022-12-31 13F PFIZER COM 717081103 34,574 304 0.89 2 -99.93 0.1551
2022-11-09 2022-09-30 13F PFIZER COM 717081103 34,270 150 0.44 1,499 -16.16 0.1350
2022-08-09 2022-06-30 13F PFIZER COM 717081103 34,120 400 1.19 1,788 2.46 0.1503
2022-05-05 2022-03-31 13F PFIZER COM 717081103 33,720 0 0.00 1,745 -12.36 0.1225
2022-02-08 2021-12-31 13F PFIZER COM 717081103 33,720 0 0.00 1,991 37.31 0.1406
2021-11-09 2021-09-30 13F PFIZER COM 717081103 33,720 120 0.36 1,450 10.27 0.1130
2021-07-14 2021-06-30 13F PFIZER COM 717081103 33,600 210 0.63 1,315 8.77 0.1027
2021-04-23 2021-03-31 13F PFIZER COM 717081103 33,390 7,135 27.18 1,209 25.16 0.1017
2021-01-28 2020-12-31 13F PFIZER COM 717081103 26,255 -2,686 -9.28 966 -9.04 0.0863
2020-12-11 2020-09-30 13F PFIZER COM 717081103 28,941 0 0.00 1,062 12.26 0.1059
2020-12-16 2020-06-30 13F PFIZER COM 717081103 28,941 0 0.00 946 0.11 0.1039
2020-04-28 2020-03-31 13F PFIZER COM 717081103 28,941 0 0.00 945 -16.67 0.1262
2020-01-24 2019-12-31 13F PFIZER COM 717081103 28,941 0 0.00 1,134 9.04 0.1183
2019-10-29 2019-09-30 13F PFIZER COM 717081103 28,941 0 0.00 1,040 -17.07 0.1152
2019-07-23 2019-06-30 13F PFIZER COM 717081103 28,941 0 0.00 1,254 2.03 0.1376
2019-04-24 2019-03-31 13F PFIZER COM 717081103 28,941 0 0.00 1,229 -2.69 0.1368
2019-01-29 2018-12-31 13F PFIZER COM 717081103 28,941 0 0.00 1,263 -0.94 0.1601
2018-11-05 2018-09-30 13F PFIZER COM 717081103 28,941 -2,300 -7.36 1,275 12.53 0.1427
2018-07-27 2018-06-30 13F PFIZER COM 717081103 31,241 300 0.97 1,133 3.19 0.1363
2018-05-02 2018-03-31 13F PFIZER COM 717081103 30,941 2,154 7.48 1,098 5.27 0.1381
2018-01-22 2017-12-31 13F PFIZER COM 717081103 28,787 0 0.00 1,043 1.46 0.1294
2017-11-02 2017-09-30 13F PFIZER COM 717081103 28,787 0 0.00 1,028 6.31 0.1313
2017-07-28 2017-06-30 13F PFIZER COM 717081103 28,787 0 0.00 967 -1.83 0.1279
2017-04-07 2017-03-31 13F PFIZER COM 717081103 28,787 0 0.00 985 5.35 0.1340
2017-01-27 2016-12-31 13F/A-1 PFIZER COM 717081103 28,787 3,000 11.63 935 7.10 0.1353
2017-01-25 2016-12-31 13F PFIZER COM 717081103 28,787 935
2016-10-28 2016-09-30 13F PFIZER INC COM COM 717081103 25,787 0 0.00 873 -3.85 0.1311
2016-07-21 2016-06-30 13F PFIZER INC COM COM 717081103 25,787 1,365 5.59 908 25.41 0.1405
2016-04-29 2016-03-31 13F PFIZER INC COM COM 717081103 24,422 0 0.00 724 -8.12 0.1173
2016-01-27 2015-12-31 13F PFIZER INC COM COM 717081103 24,422 0 0.00 788 2.74 0.1324
2015-10-28 2015-09-30 13F PFIZER INC COM COM 717081103 24,422 0 0.00 767 -6.35 0.1322
2015-07-13 2015-06-30 13F PFIZER INC COM COM 717081103 24,422 0 0.00 819 -3.65 0.1198
2015-04-27 2015-03-31 13F PFIZER INC COM COM 717081103 24,422 0 0.00 850 11.70 0.1208
2015-01-20 2014-12-31 13F PFIZER INC COM COM 717081103 24,422 0 0.00 761 5.40 0.1103
2014-10-31 2014-09-30 13F PFIZER INC COM COM 717081103 24,422 0 0.00 722 -0.41 0.1105
2014-07-24 2014-06-30 13F PFIZER INC COM COM 717081103 24,422 0 0.00 725 -7.53 0.1006
2014-04-28 2014-03-31 13F PFIZER INC COM COM 717081103 24,422 0 0.00 784 4.81 0.1172
2014-02-07 2013-12-31 13F PFIZER INC COM COM 717081103 24,422 0 0.00 748 6.55 0.1250
2013-10-22 2013-09-30 13F PFIZER INC COM COM 717081103 24,422 -7,778 -24.16 702 -22.17 0.1232
2013-07-24 2013-06-30 13F PFIZER INC COM COM 717081103 32,200 32,200 902 0.1370
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.