Pfizer Inc.
CL ˙ SNSE ˙ US7170811035
SecurityCL:PFE / Pfizer Inc.
InstitutionCanton Hathaway, LLC
Latest Disclosed Ownership4,654 shares
Latest Disclosed Value $ 130,684
Canton Hathaway, LLC reports 23.97% increase in ownership of PFE / Pfizer Inc.

On April 24, 2026 - Canton Hathaway, LLC filed a 13F-HR form disclosing ownership of 4,654 shares of Pfizer Inc. (CL:PFE) valued at $130,684 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 3,754 shares of Pfizer Inc.. This represents a change in shares of 23.97% 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)
2026-04-24 2026-03-31 13F Pfizer COM 717081103 4,654 900 23.97 131 39.78 0.0264
2026-01-21 2025-12-31 13F Pfizer COM 717081103 3,754 200 5.63 93 2.20 0.0180
2025-10-23 2025-09-30 13F Pfizer COM 717081103 3,554 0 0.00 91 0.0174
2025-08-04 2025-06-30 13F Pfizer COM 717081103 3,554 475 15.43 0 0.0175
2025-04-22 2025-03-31 13F Pfizer COM 717081103 3,079 0 0.00 0 0.0158
2025-02-04 2024-12-31 13F Pfizer COM 717081103 3,079 -8,475 -73.35 0 0.0205
2024-11-13 2024-09-30 13F Pfizer COM 717081103 11,554 0 0.00 0 0.0834
2024-07-22 2024-06-30 13F Pfizer COM 717081103 11,554 1,000 9.48 0 0.0884
2024-05-13 2024-03-31 13F Pfizer COM 717081103 10,554 3,000 39.71 0 0.0787
2024-01-30 2023-12-31 13F Pfizer COM 717081103 7,554 5,000 195.77 0 0.0654
2023-10-11 2023-09-30 13F Pfizer COM 717081103 2,554 583 29.58 0 0.0269
2023-07-11 2023-06-30 13F Pfizer COM 717081103 1,971 0 0.00 0 0.0225
2023-04-11 2023-03-31 13F Pfizer COM 717081103 1,971 0 0.00 0 0.0273
2023-01-19 2022-12-31 13F Pfizer COM 717081103 1,971 40 2.07 0 -100.00 0.0351
2022-10-17 2022-09-30 13F Pfizer COM 717081103 1,931 -850 -30.56 85 -41.78 0.0310
2022-07-20 2022-06-30 13F Pfizer COM 717081103 2,781 0 0.00 146 1.39 0.0509
2022-04-12 2022-03-31 13F Pfizer COM 717081103 2,781 0 0.00 144 -12.20 0.0403
2022-01-06 2021-12-31 13F Pfizer COM 717081103 2,781 0 0.00 164 36.67 0.0444
2021-10-14 2021-09-30 13F Pfizer COM 717081103 2,781 945 51.47 120 66.67 0.0345
2021-07-08 2021-06-30 13F Pfizer COM 717081103 1,836 86 4.91 72 14.29 0.0211
2021-04-14 2021-03-31 13F Pfizer COM 717081103 1,750 730 71.57 63 65.79 0.0201
2021-02-03 2020-12-31 13F Pfizer COM 717081103 1,020 170 20.00 38 22.58 0.0128
2020-11-09 2020-09-30 13F Pfizer COM 717081103 850 0 0.00 31 10.71 0.0127
2020-07-27 2020-06-30 13F Pfizer COM 717081103 850 0 0.00 28 0.00 0.0183
2020-05-06 2020-03-31 13F Pfizer COM 717081103 850 -500 -37.04 28 -47.17 0.0199
2020-01-10 2019-12-31 13F Pfizer COM 717081103 1,350 0 0.00 53 8.16 0.0272
2019-10-11 2019-09-30 13F Pfizer COM 717081103 1,350 -785 -36.77 49 -46.74 0.0272
2019-07-15 2019-06-30 13F Pfizer COM 717081103 2,135 785 58.15 92 61.40 0.0515
2019-04-10 2019-03-31 13F Pfizer COM 717081103 1,350 0 0.00 57 -3.39 0.0332
2019-02-07 2018-12-31 13F Pfizer COM 717081103 1,350 0 0.00 59 0.00 0.0381
2018-10-12 2018-09-30 13F Pfizer COM 717081103 1,350 1,350 59 0.0370
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.