Pfizer Inc.
CL ˙ SNSE ˙ US7170811035
SecurityCL:PFE / Pfizer Inc.
InstitutionMeridian Management Co
Latest Disclosed Ownership10,359 shares
Latest Disclosed Value $ 290,881
Meridian Management Co ownership in PFE / Pfizer Inc.

On May 5, 2026 - Meridian Management Co filed a 13F-HR form disclosing ownership of 10,359 shares of Pfizer Inc. (CL:PFE) valued at $290,881 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 10,359 shares of Pfizer Inc.. This represents a change in shares of 0.00% 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)
2026-05-05 2026-03-31 13F PFIZER COM 717081103 10,359 0 0.00 291 12.84 0.0724
2026-02-10 2025-12-31 13F PFIZER COM 717081103 10,359 0 0.00 258 -2.28 0.0639
2025-11-03 2025-09-30 13F PFIZER COM 717081103 10,359 0 0.00 264 9.13 0.0706
2025-08-05 2025-06-30 13F PFIZER COM 717081103 10,359 -6,586 -38.87 241 -43.82 0.0659
2025-05-07 2025-03-31 13F/A-1 PFIZER COM 717081103 16,945 -8,443 -33.26 429 -36.26 0.1330
2025-05-07 2025-03-31 13F PFIZER COM 717081103 16,945 -8,443 429 0.1132
2025-02-12 2024-12-31 13F PFIZER COM 717081103 25,388 -503 -1.94 674 -10.15 0.1776
2024-11-04 2024-09-30 13F PFIZER COM 717081103 25,891 271 1.06 749 4.61 0.1903
2024-08-08 2024-06-30 13F PFIZER COM 717081103 25,620 191 0.75 717 1.56 0.1969
2024-05-02 2024-03-31 13F PFIZER COM 717081103 25,429 359 1.43 706 2.17 0.1927
2024-02-12 2023-12-31 13F PFIZER COM 717081103 25,070 -8,297 -24.87 691 -37.61 0.1965
2023-11-03 2023-09-30 13F PFIZER COM 717081103 33,367 172 0.52 1,107 -9.12 0.3611
2023-08-14 2023-06-30 13F PFIZER COM 717081103 33,195 1,165 3.64 1,218 -6.81 0.3814
2023-05-02 2023-03-31 13F PFIZER COM 717081103 32,030 7,964 33.09 1,307 5.92 0.4286
2023-02-09 2022-12-31 13F PFIZER COM 717081103 24,066 -122 -0.50 1,233 16.54 0.4504
2022-11-08 2022-09-30 13F PFIZER COM 717081103 24,188 0 0.00 1,058 -16.56 0.4223
2022-08-05 2022-06-30 13F PFIZER COM 717081103 24,188 -300 -1.23 1,268 0.00 0.4907
2022-05-10 2022-03-31 13F PFIZER COM 717081103 24,488 0 0.00 1,268 -12.31 0.4021
2022-02-10 2021-12-31 13F PFIZER COM 717081103 24,488 -849 -3.35 1,446 32.66 0.4191
2021-11-10 2021-09-30 13F PFIZER COM 717081103 25,337 849 3.47 1,090 13.66 0.3341
2021-08-16 2021-06-30 13F PFIZER COM 717081103 24,488 3,608 17.28 959 26.85 0.2827
2021-05-10 2021-03-31 13F PFIZER COM 717081103 20,880 -13,563 -39.38 756 -40.38 0.2351
2021-02-10 2020-12-31 13F PFIZER COM 717081103 34,443 5,850 20.46 1,268 20.88 0.4070
2020-11-10 2020-09-30 13F PFIZER COM 717081103 28,593 -225 -0.78 1,049 11.36 0.3902
2020-07-13 2020-06-30 13F PFIZER COM 717081103 28,818 0 0.00 942 0.11 0.3859
2020-05-07 2020-03-31 13F PFIZER COM 717081103 28,818 0 0.00 941 -16.65 0.4537
2020-02-11 2019-12-31 13F PFIZER COM 717081103 28,818 -56 -0.19 1,129 8.87 0.4526
2019-11-06 2019-09-30 13F PFIZER COM 717081103 28,874 410 1.44 1,037 -15.90 0.4632
2019-08-05 2019-06-30 13F PFIZER COM 717081103 28,464 0 0.00 1,233 1.99 0.5481
2019-05-06 2019-03-31 13F PFIZER COM 717081103 28,464 -2,500 -8.07 1,209 -10.58 0.5984
2019-02-07 2018-12-31 13F PFIZER COM 717081103 30,964 -218 -0.70 1,352 -1.60 0.6892
2018-10-30 2018-09-30 13F PFIZER COM 717081103 31,182 0 0.00 1,374 21.49 0.5981
2018-08-03 2018-06-30 13F PFIZER COM 717081103 31,182 -4,979 -13.77 1,131 -11.85 0.5234
2018-05-08 2018-03-31 13F PFIZER COM 717081103 36,161 -115 -0.32 1,283 -2.36 0.5919
2018-02-05 2017-12-31 13F PFIZER COM 717081103 36,276 115 0.32 1,314 1.78 0.6133
2017-11-06 2017-09-30 13F PFIZER COM 717081103 36,161 300 0.84 1,291 7.14 0.6394
2017-08-07 2017-06-30 13F PFIZER COM 717081103 35,861 0 0.00 1,205 -1.79 0.6342
2017-05-02 2017-03-31 13F PFIZER COM 717081103 35,861 300 0.84 1,227 6.23 0.6971
2017-02-13 2016-12-31 13F PFIZER COM 717081103 35,561 0 0.00 1,155 -4.07 0.6839
2016-11-07 2016-09-30 13F PFIZER COM 717081103 35,561 0 0.00 1,204 -3.83 0.6936
2016-08-11 2016-06-30 13F PFIZER COM 717081103 35,561 0 0.00 1,252 18.79 0.7615
2016-05-04 2016-03-31 13F PFIZER COM 717081103 35,561 0 0.00 1,054 -8.19 0.6452
2016-02-03 2015-12-31 13F PFIZER COM 717081103 35,561 0 0.00 1,148 2.78 0.7354
2015-11-05 2015-09-30 13F PFIZER COM 717081103 35,561 0 0.00 1,117 -6.29 0.7327
2015-08-05 2015-06-30 13F PFIZER COM 717081103 35,561 0 0.00 1,192 -3.64 0.7223
2015-04-22 2015-03-31 13F Pfizer COM 717081103 35,561 0 0.00 1,237 11.64 0.8853
2015-02-10 2014-12-31 13F Pfizer COM 717081103 35,561 0 0.00 1,108 5.32 0.8049
2014-11-05 2014-09-30 13F Pfizer COM 717081103 35,561 0 0.00 1,052 -0.28 0.8045
2014-07-24 2014-06-30 13F Pfizer COM 717081103 35,561 0 0.00 1,055 -7.62 0.7875
2014-05-06 2014-03-31 13F Pfizer COM 717081103 35,561 0 0.00 1,142 4.87 0.9044
2014-02-06 2013-12-31 13F Pfizer COM 717081103 35,561 0 0.00 1,089 6.66 0.8665
2013-11-07 2013-09-30 13F Pfizer COM 717081103 35,561 0 0.00 1,021 -1.73 0.8742
2013-08-05 2013-06-30 13F Pfizer COM 717081103 35,561 35,561 1,039 0.9134
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.