Pfizer Inc.
CL ˙ SNSE ˙ US7170811035
SecurityCL:PFE / Pfizer Inc.
InstitutionWASHINGTON TRUST Co
Latest Disclosed Ownership301,415 shares
Latest Disclosed Value $ 8,463,734
WASHINGTON TRUST Co reports 1.88% decrease in ownership of PFE / Pfizer Inc.

On April 6, 2026 - WASHINGTON TRUST Co filed a 13F-HR form disclosing ownership of 301,415 shares of Pfizer Inc. (CL:PFE) valued at $8,463,734 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 307,184 shares of Pfizer Inc.. This represents a change in shares of -1.88% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-06 2026-03-31 13F PFIZER Equities 717081103 301,415 -5,769 -1.88 8,464 10.66 0.2753
2026-02-10 2025-12-31 13F PFIZER Equities 717081103 307,184 -11,810 -3.70 7,649 -5.89 0.2500
2025-11-12 2025-09-30 13F PFIZER Equities 717081103 318,994 -137 -0.04 8,128 5.07 0.2667
2025-08-08 2025-06-30 13F PFIZER Equities 717081103 319,131 1,799 0.57 7,736 -3.81 0.2735
2025-04-25 2025-03-31 13F PFIZER COM 717081103 317,332 -5,145 -1.60 8,041 -6.01 0.3082
2025-01-30 2024-12-31 13F Pfizer COM 717081103 322,477 -7,469 -2.26 8,555 -10.40 0.3069
2024-10-25 2024-09-30 13F Pfizer COM 717081103 329,946 -4,465 -1.34 9,549 2.05 0.3347
2024-07-15 2024-06-30 13F Pfizer COM 717081103 334,411 -9,232 -2.69 9,357 -1.89 0.3423
2024-04-23 2024-03-31 13F Pfizer COM 717081103 343,643 -2,996 -0.86 9,536 -4.44 0.3503
2024-01-18 2023-12-31 13F Pfizer COM 717081103 346,639 -3,100 -0.89 9,980 -13.97 0.3949
2023-10-18 2023-09-30 13F Pfizer COM 717081103 349,739 2,404 0.69 11,601 -8.95 0.5103
2023-07-27 2023-06-30 13F Pfizer COM 717081103 347,335 7,198 2.12 12,740 -8.19 0.5373
2023-05-10 2023-03-31 13F/A-1 Pfizer COM 717081103 340,137 -169 -0.05 13,878 -20.42 0.6252
2023-05-04 2023-03-31 13F Pfizer COM 717081103 340 -339,966 14 0.5852
2023-07-27 2022-12-31 13F/A-1 Pfizer COM 717081103 340,306 -10,441 -2.98 17,437 13.61 0.8124
2023-02-08 2022-12-31 13F Pfizer COM 717081103 340,306 -10,441 17 0.0008
2022-10-14 2022-09-30 13F Pfizer COM 717081103 350,747 -2,619 -0.74 15,348 -17.16 0.7730
2022-07-25 2022-06-30 13F Pfizer COM 717081103 353,366 3,647 1.04 18,527 2.34 0.8699
2022-05-05 2022-03-31 13F Pfizer COM 717081103 349,719 -2,598 -0.74 18,104 -12.98 0.7163
2022-02-09 2021-12-31 13F/A-1 Pfizer COM 717081103 352,317 -42,388 -10.74 20,804 22.54 0.7805
2022-02-09 2021-12-31 13F Pfizer COM 717081103 352,317 -42,388 20,804 0.7280
2021-11-09 2021-09-30 13F Pfizer COM 717081103 394,705 6,894 1.78 16,977 11.79 0.4787
2021-08-05 2021-06-30 13F Pfizer COM 717081103 387,811 11,201 2.97 15,186 11.30 0.4283
2021-04-28 2021-03-31 13F Pfizer COM 717081103 376,610 13,557 3.73 13,644 2.10 0.4188
2021-02-09 2020-12-31 13F Pfizer COM 717081103 363,053 7,909 2.23 13,364 2.53 0.4314
2020-11-05 2020-09-30 13F Pfizer COM 717081103 355,144 15,692 4.62 13,034 17.61 0.4815
2020-08-04 2020-06-30 13F Pfizer COM 717081103 339,452 -24,932 -6.84 11,082 -6.83 0.4602
2020-05-07 2020-03-31 13F Pfizer COM 717081103 364,384 18,282 5.28 11,894 -12.29 0.5670
2020-02-12 2019-12-31 13F Pfizer COM 717081103 346,102 33,558 10.74 13,561 13.08 0.5343
2019-11-06 2019-09-30 13F Pfizer COM 717081103 312,544 10,259 3.39 11,992 -8.42 0.6419
2019-08-07 2019-06-30 13F Pfizer COM 717081103 302,285 5,667 1.91 13,095 7.80 0.7171
2019-05-13 2019-03-31 13F Pfizer COM 717081103 296,618 -14,005 -4.51 12,147 -10.41 0.6795
2019-02-11 2018-12-31 13F PFIZER COM 717081103 310,623 -12,166 -3.77 13,559 -4.68 0.8624
2018-11-13 2018-09-30 13F PFIZER COM 717081103 322,789 -11,239 -3.36 14,225 17.39 0.7615
2018-08-10 2018-06-30 13F PFIZER COM 717081103 334,028 34,508 11.52 12,118 14.01 0.6493
2018-05-10 2018-03-31 13F PFIZER COMMON STOCK 717081103 299,520 -15,006 -4.77 10,629 -6.69 0.6229
2018-02-05 2017-12-31 13F PFIZER COMMON STOCK 717081103 314,526 24 0.01 11,391 1.45 0.6410
2017-10-31 2017-09-30 13F PFIZER COMMON STOCK 717081103 314,502 -1,148 -0.36 11,228 5.89 0.6678
2017-08-03 2017-06-30 13F PFIZER COMMON STOCK 717081103 315,650 5,141 1.66 10,603 -0.18 0.6460
2017-05-01 2017-03-31 13F PFIZER COMMON STOCK 717081103 310,509 -5,140 -1.63 10,622 3.60 0.6732
2017-02-08 2016-12-31 13F PFIZER COMMON STOCK 717081103 315,649 -2,515 -0.79 10,253 -4.85 0.6636
2016-11-03 2016-09-30 13F PFIZER COMMON STOCK 717081103 318,164 3,249 1.03 10,776 -2.81 0.7089
2016-08-11 2016-06-30 13F PFIZER COMMON STOCK 717081103 314,915 -6,518 -2.03 11,088 16.39 0.7493
2016-05-05 2016-03-31 13F PFIZER COMMON STOCK 717081103 321,433 10,451 3.36 9,527 -5.09 0.6356
2016-02-12 2015-12-31 13F PFIZER COMMON STOCK 717081103 310,982 -19,446 -5.89 10,038 -3.29 0.6858
2015-11-12 2015-09-30 13F PFIZER COMMON STOCK 717081103 330,428 -9,938 -2.92 10,379 -9.06 0.7494
2015-08-07 2015-06-30 13F PFIZER COMMON STOCK 717081103 340,366 940 0.28 11,413 -3.35 0.7521
2015-05-05 2015-03-31 13F PFIZER COMMON STOCK 717081103 339,426 10,113 3.07 11,809 15.12 0.7839
2015-02-11 2014-12-31 13F PFIZER COMMON STOCK 717081103 329,313 13,489 4.27 10,258 9.84 0.7049
2014-11-12 2014-09-30 13F PFIZER COMMON STOCK 717081103 315,824 9,127 2.98 9,339 2.59 0.6845
2014-08-12 2014-06-30 13F PFIZER COMMON STOCK 717081103 306,697 14,456 4.95 9,103 -3.03 0.6671
2014-05-09 2014-03-31 13F PFIZER COMMON STOCK 717081103 292,241 170,759 140.56 9,387 152.27 0.7061
2014-02-13 2013-12-31 13F PFIZER COMMON STOCK 717081103 121,482 2,071 1.73 3,721 8.48 0.2834
2013-11-08 2013-09-30 13F PFIZER COMMON STOCK 717081103 119,411 -632 -0.53 3,430 1.99 0.2749
2013-08-14 2013-06-30 13F PFIZER COMMON STOCK 717081103 120,043 120,043 3,363 0.2838
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.