Pfizer Inc.
US ˙ NYSE ˙ US7170811035

SecurityPFE / Pfizer Inc.
InstitutionMercer Global Advisors Inc /adv
Latest Disclosed Ownership935,224 shares
Latest Disclosed Value $ 26,261,077
Mercer Global Advisors Inc /adv reports 15.60% increase in ownership of PFE / Pfizer Inc.

On May 15, 2026 - Mercer Global Advisors Inc /adv filed a 13F-HR form disclosing ownership of 935,224 shares of Pfizer Inc. (US:PFE) valued at $26,261,090 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 809,052 shares of Pfizer Inc.. This represents a change in shares of 15.60% during the quarter. The current value of the position is $24,353,233 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 COM 717081103 935,224 126,172 15.60 26,261 30.36 0.0389
2026-02-17 2025-12-31 13F PFIZER COM 717081103 809,052 47,067 6.18 20,146 3.79 0.0307
2025-11-14 2025-09-30 13F PFIZER COM 717081103 761,985 -19,243 -2.46 19,410 2.49 0.0324
2025-08-14 2025-06-30 13F PFIZER COM 717081103 781,228 -64,121 -7.59 18,939 -11.57 0.0386
2025-05-15 2025-03-31 13F PFIZER COM 717081103 845,349 105,169 14.21 21,415 9.06 0.0491
2025-02-14 2024-12-31 13F PFIZER COM 717081103 740,180 -189,942 -20.42 19,637 -26.58 0.0479
2024-11-14 2024-09-30 13F PFIZER COM 717081103 930,122 33,105 3.69 26,744 51.53 0.0626
2024-08-12 2024-06-30 13F PFIZER COM 717081103 897,017 5,246 0.59 17,650 73,437.50 0.0481
2024-05-15 2024-03-31 13F PFIZER COM 717081103 891,771 -93,752 -9.51 25 -14.29 0.0704
2024-02-15 2023-12-31 13F PFIZER COM 717081103 985,523 -76,414 -7.20 28 -20.00 0.0853
2023-11-15 2023-09-30 13F/A-1 PFIZER COM 717081103 1,061,937 -33,042 -3.02 35 -12.50 0.1338
2023-11-14 2023-09-30 13F PFIZER COM 717081103 1,061,937 -33,042 35 0.1337
2023-08-14 2023-06-30 13F PFIZER COM 717081103 1,094,979 82,217 8.12 40 -2.44 0.1594
2023-05-16 2023-03-31 13F PFIZER COM 717081103 1,012,762 7,796 0.78 41 -19.61 0.1877
2023-02-09 2022-12-31 13F PFIZER COM 717081103 1,004,966 70,920 7.59 51 -99.88 0.2579
2022-11-15 2022-09-30 13F PFIZER COM 717081103 934,046 48,444 5.47 40,874 -11.97 0.2426
2022-08-10 2022-06-30 13F PFIZER COM 717081103 885,602 82,900 10.33 46,432 11.73 0.2842
2022-05-10 2022-03-31 13F PFIZER COM 717081103 802,702 55,816 7.47 41,557 -5.77 0.2447
2022-02-04 2021-12-31 13F PFIZER COM 717081103 746,886 103,188 16.03 44,104 59.30 0.2723
2021-11-10 2021-09-30 13F PFIZER COM 717081103 643,698 42,015 6.98 27,686 17.50 0.1934
2021-08-10 2021-06-30 13F PFIZER COM 717081103 601,683 31,910 5.60 23,562 14.13 0.1812
2021-08-10 2021-03-31 13F/A-1 PFIZER COM 717081103 569,773 731 0.13 20,644 -1.44 0.1878
2021-05-11 2021-03-31 13F PFIZER COM 717081103 561,610 -7,432 20,348 0.1948
2021-02-12 2020-12-31 13F PFIZER COM 717081103 569,042 20,707 3.78 20,946 4.08 0.2616
2020-12-10 2020-09-30 13F PFIZER COM 717081103 548,335 1,060 0.19 20,124 12.45 0.3027
2020-08-10 2020-06-30 13F PFIZER COM 717081103 547,275 20,685 3.93 17,896 4.12 0.3249
2020-05-18 2020-03-31 13F PFIZER COM 717081103 526,590 -16,956 -3.12 17,188 -19.29 0.3783
2020-02-13 2019-12-31 13F PFIZER INC COM COM 717081103 543,546 97,820 21.95 21,296 32.98 0.4253
2019-11-12 2019-09-30 13F PFIZER INC COM COM 717081103 445,726 89,396 25.09 16,014 3.74 0.3766
2019-08-14 2019-06-30 13F PFIZER INC COM COM 717081103 356,330 53,233 17.56 15,436 19.91 0.4091
2019-04-23 2019-03-31 13F/A-1 PFIZER INC COM COM 717081103 303,097 303,097 12,873 0.4629
2019-04-12 2019-03-31 13F PFIZER INC COM COM 717081103 307,614 13,427 0.7155
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.