Pfizer Inc.
US ˙ NYSE ˙ US7170811035

SecurityPFE / Pfizer Inc.
InstitutionEastern Bank
Latest Disclosed Ownership97,780 shares
Latest Disclosed Value $ 2,745,662
Eastern Bank reports 1.89% decrease in ownership of PFE / Pfizer Inc.

On April 7, 2026 - Eastern Bank filed a 13F-HR form disclosing ownership of 97,780 shares of Pfizer Inc. (US:PFE) valued at $2,745,662 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 14, 2026 disclosing 99,661 shares of Pfizer Inc.. This represents a change in shares of -1.89% during the quarter. The current value of the position is $2,477,745 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)
2026-04-07 2026-03-31 13F PFIZER COM 717081103 97,780 -1,881 -1.89 2,746 10.64 0.0430
2026-01-14 2025-12-31 13F PFIZER COM 717081103 99,661 -945 -0.94 2,482 -3.20 0.0428
2025-10-27 2025-09-30 13F PFIZER COM 717081103 100,606 8,695 9.46 2,563 15.09 0.0455
2025-07-24 2025-06-30 13F PFIZER COM 717081103 91,911 -4,973 -5.13 2,228 -9.29 0.0424
2025-05-08 2025-03-31 13F PFIZER COM 717081103 96,884 -455 -0.47 2,455 -4.92 0.0481
2025-01-13 2024-12-31 13F Pfizer COM 717081103 97,339 -10,127 -9.42 2,582 -16.98 0.0480
2024-10-21 2024-09-30 13F Pfizer COM 717081103 107,466 88,982 481.40 3,110 501.55 0.0557
2024-07-23 2024-06-30 13F PFIZER COMMON STOCKS 717081103 18,484 -2,641 -12.50 517 -11.77 0.0209
2024-05-09 2024-03-31 13F PFIZER COMMON STOCKS 717081103 21,125 -2,219 -9.51 586 -12.80 0.0244
2024-01-25 2023-12-31 13F PFIZER COMMON STOCKS 717081103 23,344 -687 -2.86 672 -15.68 0.0305
2023-10-17 2023-09-30 13F PFIZER COMMON STOCKS 717081103 24,031 -50 -0.21 797 -9.74 0.0396
2023-07-19 2023-06-30 13F PFIZER COMMON STOCKS 717081103 24,081 -1,822 -7.03 883 -16.38 0.0420
2023-04-19 2023-03-31 13F PFIZER COMMON STOCKS 717081103 25,903 -62,613 -70.74 1,057 -76.71 0.0531
2023-01-24 2022-12-31 13F PFIZER COMMON STOCKS 717081103 88,516 -3,425 -3.73 4,536 12.73 0.2421
2022-10-19 2022-09-30 13F PFIZER COMMON STOCKS 717081103 91,941 -10,667 -10.40 4,023 -25.22 0.2296
2022-07-20 2022-06-30 13F PFIZER COMMON STOCKS 717081103 102,608 -20,453 -16.62 5,380 -15.55 0.2862
2022-04-21 2022-03-31 13F PFIZER COMMON STOCKS 717081103 123,061 -16,396 -11.76 6,371 -22.64 0.2954
2022-01-26 2021-12-31 13F PFIZER COMMON STOCKS 717081103 139,457 -378 -0.27 8,235 36.93 0.3592
2021-10-19 2021-09-30 13F PFIZER COMMON STOCKS 717081103 139,835 3,604 2.65 6,014 12.73 0.2905
2021-07-20 2021-06-30 13F PFIZER COMMON STOCKS 717081103 136,231 459 0.34 5,335 8.46 0.2616
2021-04-27 2021-03-31 13F PFIZER COMMON STOCKS 717081103 135,772 -9,321 -6.42 4,919 -7.90 0.2658
2021-01-20 2020-12-31 13F PFIZER COMMON STOCKS 717081103 145,093 1,883 1.31 5,341 1.62 0.2990
2020-10-30 2020-09-30 13F PFIZER COMMON STOCKS 717081103 143,210 6,741 4.94 5,256 17.77 0.3218
2020-09-01 2020-06-30 13F/A-1 PFIZER COMMON STOCKS 717081103 136,469 -68 -0.05 4,463 0.13 0.2903
2020-07-21 2020-06-30 13F PFIZER COMMON STOCKS 717081103 136,469 -68 4,463 290,297.5696
2020-04-27 2020-03-31 13F PFIZER COMMON STOCKS 717081103 136,537 -3,348 -2.39 4,457 -18.68 0.3318
2020-02-04 2019-12-31 13F PFIZER COMMON STOCKS 717081103 139,885 -7,603 -5.15 5,481 3.43 0.3183
2019-11-04 2019-09-30 13F PFIZER COMMON STOCKS 717081103 147,488 22,669 18.16 5,299 -2.00 0.3305
2019-07-24 2019-06-30 13F PFIZER COMMON STOCKS 717081103 124,819 -3,852 -2.99 5,407 -1.06 0.3439
2019-04-18 2019-03-31 13F PFIZER COMMON STOCKS 717081103 128,671 1,345 1.06 5,465 -1.66 0.3663
2019-01-18 2018-12-31 13F PFIZER COMMON STOCKS 717081103 127,326 -1,466 -1.14 5,557 -2.10 0.4150
2018-10-16 2018-09-30 13F PFIZER COMMON STOCKS 717081103 128,792 -5,536 -4.12 5,676 16.45 0.3703
2018-07-18 2018-06-30 13F PFIZER COMMON STOCKS 717081103 134,328 -13,154 -8.92 4,874 -6.88 0.3330
2018-04-09 2018-03-31 13F PFIZER COMMON STOCKS 717081103 147,482 3,259 2.26 5,234 0.19 0.3660
2018-01-22 2017-12-31 13F PFIZER COMMON STOCKS 717081103 144,223 -2,040 -1.39 5,224 0.04 0.3501
2017-10-24 2017-09-30 13F PFIZER COMMON STOCKS 717081103 146,263 -73 -0.05 5,222 6.22 0.3698
2017-07-26 2017-06-30 13F PFIZER COMMON STOCKS 717081103 146,336 1,969 1.36 4,916 -0.47 0.3618
2017-04-17 2017-03-31 13F PFIZER COMMON STOCKS 717081103 144,367 -3,517 -2.38 4,939 2.83 0.3727
2017-01-18 2016-12-31 13F PFIZER COMMON STOCKS 717081103 147,884 1,783 1.22 4,803 -2.95 0.3737
2016-10-17 2016-09-30 13F PFIZER COMMON STOCKS 717081103 146,101 81,758 127.07 4,949 118.50 0.3978
2016-07-15 2016-06-30 13F PFIZER COMMON STOCKS 717081103 64,343 -214 -0.33 2,265 18.40 0.1830
2016-04-14 2016-03-31 13F PFIZER COMMON STOCKS 717081103 64,557 -711 -1.09 1,913 -9.21 0.1560
2016-01-20 2015-12-31 13F PFIZER COMMON STOCKS 717081103 65,268 418 0.64 2,107 3.44 0.1754
2015-10-16 2015-09-30 13F PFIZER COMMON STOCKS 717081103 64,850 2,428 3.89 2,037 -2.68 0.1776
2015-07-16 2015-06-30 13F PFIZER COMMON STOCKS 717081103 62,422 -3,530 -5.35 2,093 -8.76 0.1690
2015-04-17 2015-03-31 13F PFIZER COMMON STOCKS 717081103 65,952 -2,194 -3.22 2,294 8.11 0.1837
2015-01-12 2014-12-31 13F PFIZER COMMON STOCKS 717081103 68,146 -103 -0.15 2,122 5.15 0.1684
2014-10-15 2014-09-30 13F PFIZER COMMON STOCKS 717081103 68,249 -9,912 -12.68 2,018 -13.02 0.1631
2014-07-16 2014-06-30 13F PFIZER COMMON STOCKS 717081103 78,161 -78,240 -50.03 2,320 -53.82 0.1879
2014-04-17 2014-03-31 13F PFIZER COMMON STOCKS 717081103 156,401 6,000 3.99 5,024 9.05 0.4233
2014-01-21 2013-12-31 13F PFIZER COMMON STOCKS 717081103 150,401 4,094 2.80 4,607 9.61 0.3925
2013-10-18 2013-09-30 13F PFIZER COMMON STOCKS 717081103 146,307 5,244 3.72 4,203 6.38 0.3855
2013-08-09 2013-06-30 13F PFIZER COMMON STOCKS 717081103 141,063 141,063 3,951 0.3675
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.