Pfizer Inc.
US ˙ NYSE ˙ US7170811035

SecurityPFE / Pfizer Inc.
InstitutionAdvisory Services Network, LLC
Latest Disclosed Ownership258,469 shares
Latest Disclosed Value $ 7,257,799
Advisory Services Network, LLC reports 3.84% decrease in ownership of PFE / Pfizer Inc.

On May 15, 2026 - Advisory Services Network, LLC filed a 13F-HR form disclosing ownership of 258,469 shares of Pfizer Inc. (US:PFE) valued at $7,257,810 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 268,796 shares of Pfizer Inc.. This represents a change in shares of -3.84% during the quarter. The current value of the position is $6,640,069 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)
2026-05-15 2026-03-31 13F PFIZER INC COM Stock 717081103 258,469 -10,327 -3.84 7,258 8.43 0.0671
2026-02-17 2025-12-31 13F PFIZER INC COM Stock 717081103 268,796 -43,076 -13.81 6,693 -15.77 0.0947
2025-11-18 2025-09-30 13F PFIZER Stock 717081103 311,872 -38,138 -10.90 7,946 -2.52 0.1165
2025-08-19 2025-06-30 13F PFIZER Stock 717081103 350,010 -9,202 -2.56 8,152 -10.45 0.1312
2025-05-15 2025-03-31 13F PFIZER Stock 717081103 359,212 19,407 5.71 9,102 0.97 0.1749
2025-02-13 2024-12-31 13F PFIZER Stock 717081103 339,805 11,502 3.50 9,015 -1.85 0.1679
2024-11-14 2024-09-30 13F PFIZER Stock 717081103 328,303 0 0.00 9,186 0.00 0.1899
2024-08-13 2024-06-30 13F PFIZER Stock 717081103 328,303 -74,543 -18.50 9,186 -17.83 0.1899
2024-05-06 2024-03-31 13F PFIZER Stock 717081103 402,846 -39,421 -8.91 11,179 -12.21 0.2479
2024-02-09 2023-12-31 13F PFIZER Stock 717081103 442,267 35,337 8.68 12,733 -5.67 0.3112
2023-11-14 2023-09-30 13F PFIZER Stock 717081103 406,930 18,804 4.84 13,498 -5.19 0.3625
2023-08-09 2023-06-30 13F PFIZER Stock 717081103 388,126 57,944 17.55 14,236 5.68 0.3793
2023-05-17 2023-03-31 13F PFIZER Stock 717081103 330,182 -6,975 -2.07 13,471 -22.02 0.3732
2023-02-13 2022-12-31 13F PFIZER Stock 717081103 337,157 -10,638 -3.06 17,276 13.51 0.5295
2022-11-14 2022-09-30 13F PFIZER Stock 717081103 347,795 -7,063 -1.99 15,219 -18.20 0.5372
2022-08-02 2022-06-30 13F PFIZER Stock 717081103 354,858 25,871 7.86 18,606 9.25 0.6363
2022-05-23 2022-03-31 13F PFIZER Stock 717081103 328,987 -79,831 -19.53 17,031 -29.45 0.5013
2022-02-14 2021-12-31 13F PFIZER Stock 717081103 408,818 -10,892 -2.60 24,141 33.73 0.6945
2021-11-05 2021-09-30 13F PFIZER Stock 717081103 419,710 151,179 56.30 18,052 71.68 0.5741
2021-08-12 2021-06-30 13F PFIZER Stock 717081103 268,531 -7,916 -2.86 10,515 4.99 0.3317
2021-05-24 2021-03-31 13F PFIZER Stock 717081103 276,447 34,039 14.04 10,015 12.26 0.3720
2021-02-09 2020-12-31 13F PFIZER Stock 717081103 242,408 17,842 7.95 8,921 8.25 0.3579
2020-11-16 2020-09-30 13F PFIZER Stock 717081103 224,566 30,392 15.65 8,241 29.78 0.3878
2020-08-10 2020-06-30 13F PFIZER Stock 717081103 194,174 10,799 5.89 6,350 6.12 0.3485
2020-05-15 2020-03-31 13F PFIZER Stock 717081103 183,375 -4,103 -2.19 5,984 -18.53 0.3914
2020-02-04 2019-12-31 13F PFIZER Stock 717081103 187,478 12,400 7.08 7,345 -3.15 0.3863
2019-11-04 2019-09-30 13F PFIZER Stock 717081103 175,078 0 0.00 7,584 0.00 0.4646
2019-08-01 2019-06-30 13F PFIZER Stock 717081103 175,078 8,193 4.91 7,584 7.01 0.4650
2019-05-20 2019-03-31 13F PFIZER Stock 717081103 166,885 -3,188 -1.87 7,087 -4.54 0.4978
2019-02-15 2018-12-31 13F PFIZER Stock 717081103 170,073 -4,431 -2.54 7,424 -3.45 0.6480
2018-11-02 2018-09-30 13F PFIZER Stock 717081103 174,504 10,367 6.32 7,689 22.77 0.5612
2018-07-27 2018-06-30 13F PFIZER Stock 717081103 164,137 -13,458 -7.58 6,263 -0.63 0.4771
2018-04-23 2018-03-31 13F PFIZER Stock 717081103 177,595 726 0.41 6,303 -1.61 0.5035
2018-02-08 2017-12-31 13F PFIZER Stock 717081103 176,869 42,539 31.67 6,406 33.57 0.5584
2017-10-12 2017-09-30 13F PFIZER Stock 717081103 134,330 -3,270 -2.38 4,796 3.76 0.5490
2017-08-17 2017-06-30 13F PFIZER INC COM Stock 717081103 137,600 -351 -0.25 4,622 -2.06 0.6024
2017-04-28 2017-03-31 13F PFIZER INC COM Stock 717081103 137,951 22,916 19.92 4,719 21.12 0.6854
2016-10-07 2016-09-30 13F PFIZER Stock 717081103 115,035 5,366 4.89 3,896 0.91 0.7325
2016-07-27 2016-06-30 13F PFIZER Stock 717081103 109,669 33,497 43.98 3,861 70.99 0.8776
2016-04-21 2016-03-31 13F PFIZER Stock 717081103 76,172 36,975 94.33 2,258 78.50 0.6166
2016-01-27 2015-12-31 13F PFIZER INC COM Stock 717081103 39,197 813 2.12 1,265 4.89 0.4067
2015-10-01 2015-09-30 13F PFIZER INC COM Stock 717081103 38,384 1,090 2.92 1,206 -3.98 0.3641
2015-07-02 2015-06-30 13F PFIZER INC COM Stock 717081103 37,294 1,503 4.20 1,256 1.78 0.3705
2015-04-08 2015-03-31 13F PFIZER INC COM Stock 717081103 35,791 8,545 31.36 1,234 36.81 0.3407
2015-01-23 2014-12-31 13F PFIZER Stock 717081103 27,246 1,094 4.18 902 16.69 0.2820
2014-10-07 2014-09-30 13F PFIZER Stock 717081103 26,152 4,700 21.91 773 21.35 0.2827
2014-07-10 2014-06-30 13F PFIZER Stock 717081103 21,452 1,208 5.97 637 -2.00 0.2697
2014-04-09 2014-03-31 13F PFIZER INC COM Stock 717081103 20,244 531 2.69 650 7.62 0.3351
2014-02-13 2013-12-31 13F PFIZER Stock 717081103 19,713 5,821 41.90 604 51.38 0.3033
2013-11-22 2013-09-30 13F PFIZER Stock 717081103 13,892 -250 -1.77 399 -0.25 0.3432
2013-08-15 2013-06-30 13F PFIZER Stock 717081103 14,142 14,142 400 0.3259
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.