Pfizer Inc.
CL ˙ SNSE ˙ US7170811035
SecurityCL:PFE / Pfizer Inc.
InstitutionTrust Co
Latest Disclosed Ownership57,242 shares
Latest Disclosed Value $ 1,607,357
Trust Co reports 3.28% increase in ownership of PFE / Pfizer Inc.

On April 13, 2026 - Trust Co filed a 13F-HR form disclosing ownership of 57,242 shares of Pfizer Inc. (CL:PFE) valued at $1,607,357 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 15, 2026 disclosing 55,423 shares of Pfizer Inc.. This represents a change in shares of 3.28% 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)
2026-04-13 2026-03-31 13F PFIZER INC COM Stock 717081103 57,242 1,819 3.28 1,607 16.45 0.1506
2026-01-15 2025-12-31 13F PFIZER INC COM Stock 717081103 55,423 5,029 9.98 1,380 7.48 0.1294
2025-10-06 2025-09-30 13F Pfizer COM 717081103 50,394 23,540 87.66 1,284 97.54 0.1313
2025-07-07 2025-06-30 13F Pfizer COM 717081103 26,854 22,385 500.90 651 475.22 0.0735
2025-04-08 2025-03-31 13F Pfizer COM 717081103 4,469 829 22.77 113 17.71 0.0134
2025-01-14 2024-12-31 13F Pfizer COM 717081103 3,640 200 5.81 97 -3.03 0.0111
2024-10-03 2024-09-30 13F Pfizer COM 717081103 3,440 -347 -9.16 100 -5.71 0.0120
2024-07-15 2024-06-30 13F Pfizer COM 717081103 3,787 -345 -8.35 106 -7.89 0.0137
2024-04-11 2024-03-31 13F Pfizer COM 717081103 4,132 -357 -7.95 115 -11.63 0.0151
2024-01-10 2023-12-31 13F Pfizer COM 717081103 4,489 -8,129 -64.42 129 -69.14 0.0166
2023-12-04 2023-09-30 13F Pfizer COM 717081103 12,618 -1,316 -9.44 419 -18.20 0.0675
2023-07-10 2023-06-30 13F Pfizer COM 717081103 13,934 1,721 14.09 511 2.61 0.0763
2023-04-07 2023-03-31 13F Pfizer COM 717081103 12,213 -827 -6.34 498 -25.45 0.0756
2023-01-09 2022-12-31 13F Pfizer COM 717081103 13,040 5 0.04 1 -100.00 0.1083
2022-10-11 2022-09-30 13F Pfizer COM 717081103 13,035 -2,483 -16.00 570 -29.98 0.1247
2022-07-06 2022-06-30 13F Pfizer COM 717081103 15,518 -13,285 -46.12 814 -45.41 0.1755
2022-04-08 2022-03-31 13F Pfizer COM 717081103 28,803 15,124 110.56 1,491 84.53 0.2910
2022-01-14 2021-12-31 13F Pfizer COM 717081103 13,679 -28 -0.20 808 36.95 0.1885
2021-10-20 2021-09-30 13F Pfizer COM 717081103 13,707 -11,531 -45.69 590 -40.28 0.1512
2021-07-14 2021-06-30 13F Pfizer COM 717081103 25,238 -1,557 -5.81 988 1.75 0.6930
2021-04-08 2021-03-31 13F Pfizer COM 717081103 26,795 20,487 324.78 971 318.53 0.6999
2021-01-12 2020-12-31 13F Pfizer COM 717081103 6,308 1,215 23.86 232 24.06 0.1833
2020-10-06 2020-09-30 13F Pfizer COM 717081103 5,093 1,456 40.03 187 57.14 0.1573
2020-07-17 2020-06-30 13F Pfizer COM 717081103 3,637 -1,171 -24.36 119 -24.20 0.1131
2020-04-07 2020-03-31 13F Pfizer COM 717081103 4,808 -935 -16.28 157 -30.22 0.1731
2020-01-07 2019-12-31 13F Pfizer COM 717081103 5,743 -8,776 -60.44 225 -56.90 0.1978
2019-10-09 2019-09-30 13F Pfizer COM 717081103 14,519 -170 -1.16 522 -17.92 0.4929
2019-07-08 2019-06-30 13F Pfizer COM 717081103 14,689 -77,567 -84.08 636 -83.77 0.5855
2019-04-08 2019-03-31 13F Pfizer COM 717081103 92,256 -10,202 -9.96 3,918 -12.39 2.2845
2019-01-22 2018-12-31 13F Pfizer COM 717081103 102,458 91,094 801.60 4,472 792.61 2.4884
2018-10-09 2018-09-30 13F Pfizer COM 717081103 11,364 -191 -1.65 501 19.57 0.2261
2018-07-10 2018-06-30 13F Pfizer COM 717081103 11,555 191 1.68 419 3.97 0.1917
2018-04-09 2018-03-31 13F Pfizer COM 717081103 11,364 0 0.00 403 -2.18 0.1488
2018-03-09 2017-12-31 13F/A-1 Pfizer COM 717081103 11,364 0 0.00 412 1.48 0.1702
2018-01-11 2017-12-31 13F Pfizer COM 717081103 11,364 0 412
2017-10-12 2017-09-30 13F Pfizer COM 717081103 11,364 -345 -2.95 406 3.31 0.2234
2017-07-07 2017-06-30 13F Pfizer COM 717081103 11,709 -855 -6.81 393 -8.60 0.1817
2017-04-06 2017-03-31 13F Pfizer COM 717081103 12,564 0 0.00 430 5.39 0.1954
2017-01-12 2016-12-31 13F Pfizer COM 717081103 12,564 349 2.86 408 -1.45 0.2074
2016-10-19 2016-09-30 13F Pfizer PFIZER INC COM 717081103 12,215 -899 -6.86 414 -10.39 0.1816
2016-07-08 2016-06-30 13F Pfizer COM 717081103 13,114 0 0.00 462 18.77 0.1765
2016-04-08 2016-03-31 13F Pfizer COM 717081103 13,114 -394 -2.92 389 -10.78 0.1779
2016-01-26 2015-12-31 13F Pfizer COM 717081103 13,508 -3,998 -22.84 436 -20.73 0.2019
2015-10-13 2015-09-30 13F Pfizer COM 717081103 17,506 -4,017 -18.66 550 -23.82 0.3121
2015-07-10 2015-06-30 13F Pfizer COM 717081103 21,523 9,000 71.87 722 65.60 0.4511
2015-05-07 2015-03-31 13F Pfizer COM 717081103 12,523 12,523 436 0.2755
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.