Pfizer Inc.
US ˙ NYSE ˙ US7170811035

SecurityPFE / Pfizer Inc.
InstitutionCornerstone Advisory, LLC
Latest Disclosed Ownership8,298 shares
Latest Disclosed Value $ 232,994
Cornerstone Advisory, LLC reports 5.41% decrease in ownership of PFE / Pfizer Inc.

On May 4, 2026 - Cornerstone Advisory, LLC filed a 13F-HR form disclosing ownership of 8,298 shares of Pfizer Inc. (US:PFE) valued at $233,008 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 8,773 shares of Pfizer Inc.. This represents a change in shares of -5.41% during the quarter. The current value of the position is $210,271 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.

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)
2026-05-04 2026-03-31 13F PFIZER COM 717081103 8,298 -475 -5.41 233 6.42 0.0221
2026-01-28 2025-12-31 13F PFIZER COM 717081103 8,773 -212 -2.36 218 -4.39 0.0208
2025-11-07 2025-09-30 13F PFIZER COM 717081103 8,985 -4,172 -31.71 229 -28.30 0.0225
2025-07-30 2025-06-30 13F PFIZER COM 717081103 13,157 2,841 27.54 319 34.75 0.0342
2025-05-07 2025-03-31 13F PFIZER COM 717081103 10,316 -2,724 -20.89 236 -28.92 0.0275
2025-02-18 2024-12-31 13F PFIZER COM 717081103 13,040 -3,749 -22.33 333 -31.55 0.0378
2024-11-12 2024-09-30 13F PFIZER COM 717081103 16,789 -413 -2.40 486 0.83 0.0639
2024-08-14 2024-06-30 13F PFIZER COM 717081103 17,202 -7,541 -30.48 481 -29.88 0.0677
2024-05-08 2024-03-31 13F PFIZER COM 717081103 24,743 -4,389 -15.07 687 -18.14 0.0979
2024-02-13 2023-12-31 13F PFIZER COM 717081103 29,132 45 0.15 839 -13.07 0.1308
2023-11-14 2023-09-30 13F PFIZER COM 717081103 29,087 -2,814 -8.82 965 -17.61 0.1688
2023-07-20 2023-06-30 13F PFIZER COM 717081103 31,901 -4,011 -11.17 1,170 -20.14 0.2056
2023-05-04 2023-03-31 13F PFIZER COM 717081103 35,912 -872 -2.37 1,465 -22.24 0.2639
2023-02-13 2022-12-31 13F PFIZER COM 717081103 36,784 2,172 6.28 1,885 24.36 0.3714
2022-10-26 2022-09-30 13F PFIZER COM 717081103 34,612 1,846 5.63 1,515 -11.82 0.3383
2022-08-02 2022-06-30 13F PFIZER COM 717081103 32,766 -21,738 -39.88 1,718 -39.12 0.3930
2022-05-20 2022-03-31 13F PFIZER COM 717081103 54,504 -125 -0.23 2,822 -12.52 0.4303
2022-02-23 2021-12-31 13F PFIZER COM 717081103 54,629 -1,683 -2.99 3,226 33.20 0.4637
2021-11-16 2021-09-30 13F PFIZER COM 717081103 56,312 2,044 3.77 2,422 13.98 0.4010
2021-08-16 2021-06-30 13F PFIZER COM 717081103 54,268 9,622 21.55 2,125 31.33 0.3580
2021-05-13 2021-03-31 13F PFIZER COM 717081103 44,646 4,386 10.89 1,618 9.18 0.3062
2021-05-11 2020-12-31 13F PFIZER COM 717081103 40,260 5,225 14.91 1,482 15.24 0.3000
2020-11-12 2020-09-30 13F PFIZER COM 717081103 35,035 20,306 137.86 1,286 166.80 0.3000
2020-08-10 2020-06-30 13F PFIZER COM 717081103 14,729 -54 -0.37 482 -0.21 0.1257
2020-05-11 2020-03-31 13F PFIZER COM 717081103 14,783 -4,204 -22.14 483 -35.08 0.1469
2020-02-12 2019-12-31 13F PFIZER COM 717081103 18,987 4,330 29.54 744 41.18 0.1540
2019-11-12 2019-09-30 13F PFIZER COM 717081103 14,657 1 0.01 527 -17.01 0.1137
2019-08-08 2019-06-30 13F PFIZER COM 717081103 14,656 -83 -0.56 635 1.44 0.1377
2019-05-08 2019-03-31 13F PFIZER COM 717081103 14,739 717 5.11 626 2.29 0.1377
2019-02-12 2018-12-31 13F PFIZER COM 717081103 14,022 1,572 12.63 612 11.48 0.1606
2018-11-13 2018-09-30 13F PFIZER COM 717081103 12,450 -1,384 -10.00 549 9.36 0.1628
2018-08-09 2018-06-30 13F PFIZER COM 717081103 13,834 0 0.00 502 2.24 0.1652
2018-05-10 2018-03-31 13F PFIZER COM 717081103 13,834 -1,710 -11.00 491 -12.79 0.1768
2018-02-09 2017-12-31 13F PFIZER COM 717081103 15,544 1,384 9.77 563 11.26 0.1929
2017-11-14 2017-09-30 13F PFIZER COM 717081103 14,160 -1,034 -6.81 506 -0.78 0.1712
2017-08-08 2017-06-30 13F PFIZER COM 717081103 15,194 710 4.90 510 3.03 0.1707
2017-05-15 2017-03-31 13F PFIZER COM 717081103 14,484 363 2.57 495 7.84 0.2499
2017-02-13 2016-12-31 13F PFIZER COM 717081103 14,121 -450 -3.09 459 -7.09 0.3444
2016-11-10 2016-09-30 13F PFIZER COM 717081103 14,571 450 3.19 494 -0.60 0.4056
2016-08-10 2016-06-30 13F PFIZER COM 717081103 14,121 0 0.00 497 18.62 0.4178
2016-05-16 2016-03-31 13F PFIZER COM 717081103 14,121 -49 -0.35 419 -8.32 0.3580
2016-03-03 2015-12-31 13F PFIZER COM 717081103 14,170 14,170 457 0.3935
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.