Pfizer Inc.
CL ˙ SNSE ˙ US7170811035
SecurityCL:PFE / Pfizer Inc.
InstitutionCAPROCK Group, Inc.
Latest Disclosed Ownership250,656 shares
Latest Disclosed Value $ 7,038,422
CAPROCK Group, Inc. reports 24.57% increase in ownership of PFE / Pfizer Inc.

On May 11, 2026 - CAPROCK Group, Inc. filed a 13F-HR form disclosing ownership of 250,656 shares of Pfizer Inc. (CL:PFE) valued at $7,038,422 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 201,209 shares of Pfizer Inc.. This represents a change in shares of 24.57% 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)
2026-05-11 2026-03-31 13F PFIZER COM 717081103 250,656 49,447 24.57 7,038 40.48 0.1708
2026-01-28 2025-12-31 13F PFIZER COM 717081103 201,209 -17,489 -8.00 5,010 -9.02 0.1058
2025-11-06 2025-09-30 13F PFIZER COM 717081103 218,698 83,695 61.99 5,507 61.02 0.1357
2025-05-15 2025-03-31 13F PFIZER COM 717081103 135,003 25,809 23.64 3,421 18.09 0.1043
2025-01-23 2024-12-31 13F PFIZER COM 717081103 109,194 -60,781 -35.76 2,897 -41.13 0.0947
2024-11-07 2024-09-30 13F PFIZER COM 717081103 169,975 -1,384 -0.81 4,919 2.61 0.1790
2024-08-06 2024-06-30 13F PFIZER COM 717081103 171,359 72,818 73.90 4,795 75.35 0.1950
2024-04-29 2024-03-31 13F PFIZER COM 717081103 98,541 2,907 3.04 2,735 -0.69 0.1568
2024-01-18 2023-12-31 13F PFIZER COM 717081103 95,634 35,063 57.89 2,753 37.10 0.1759
2023-10-18 2023-09-30 13F PFIZER COM 717081103 60,571 -3,094 -4.86 2,009 -14.00 0.1520
2023-08-10 2023-06-30 13F PFIZER COM 717081103 63,665 1,759 2.84 2,335 -7.52 0.1715
2023-04-26 2023-03-31 13F PFIZER COM 717081103 61,906 22,487 57.05 2,526 25.06 0.1957
2023-01-23 2022-12-31 13F PFIZER COM 717081103 39,419 4,681 13.48 2,020 32.83 0.1880
2022-11-07 2022-09-30 13F PFIZER COM 717081103 34,738 4,225 13.85 1,520 -5.00 0.1464
2022-07-26 2022-06-30 13F PFIZER COM 717081103 30,513 8,419 38.11 1,600 39.86 0.1570
2022-04-12 2022-03-31 13F PFIZER COM 717081103 22,094 1,016 4.82 1,144 -8.11 0.1075
2022-01-18 2021-12-31 13F PFIZER COM 717081103 21,078 -40,264 -65.64 1,245 -52.81 0.1026
2021-10-07 2021-09-30 13F PFIZER COM 717081103 61,342 -309 -0.50 2,638 9.28 0.2357
2021-08-13 2021-06-30 13F PFIZER COM 717081103 61,651 -615 -0.99 2,414 7.00 0.2196
2021-04-29 2021-03-31 13F PFIZER COM 717081103 62,266 -580 -0.92 2,256 -2.46 0.2467
2021-01-29 2020-12-31 13F PFIZER COM 717081103 62,846 -1,675 -2.60 2,313 -2.32 0.2637
2020-10-29 2020-09-30 13F PFIZER COM 717081103 64,521 -15,616 -19.49 2,368 -9.62 0.3241
2020-08-05 2020-06-30 13F PFIZER COM 717081103 80,137 7,972 11.05 2,620 11.25 0.3937
2020-04-28 2020-03-31 13F PFIZER COM 717081103 72,165 56,443 359.01 2,355 282.31 0.4460
2020-02-04 2019-12-31 13F PFIZER COM 717081103 15,722 1,054 7.19 616 16.89 0.1102
2019-10-31 2019-09-30 13F PFIZER COM 717081103 14,668 -4,050 -21.64 527 -35.02 0.1029
2019-07-23 2019-06-30 13F PFIZER COM 717081103 18,718 -49,985 -72.76 811 -72.21 0.1585
2019-04-12 2019-03-31 13F PFIZER COM 717081103 68,703 -1,045 -1.50 2,918 -4.17 0.5669
2019-01-29 2018-12-31 13F PFIZER COM 717081103 69,748 -1,590 -2.23 3,045 -3.15 0.7009
2018-10-17 2018-09-30 13F PFIZER COM 717081103 71,338 -3,721 -4.96 3,144 15.46 0.6393
2018-07-23 2018-06-30 13F PFIZER COM 717081103 75,059 -10,266 -12.03 2,723 -10.07 0.5759
2018-04-23 2018-03-31 13F PFIZER COM 717081103 85,325 -2,493 -2.84 3,028 -5.64 0.6464
2018-01-17 2017-12-31 13F PFIZER COM 717081103 87,818 -12,433 -12.40 3,209 -10.34 0.6244
2017-10-23 2017-09-30 13F PFIZER COM 717081103 100,251 1,717 1.74 3,579 8.13 0.7457
2017-07-27 2017-06-30 13F PFIZER COM 717081103 98,534 7,500 8.24 3,310 6.29 0.7353
2017-04-21 2017-03-31 13F PFIZER COM 717081103 91,034 -6,236 -6.41 3,114 -1.42 0.7315
2017-01-24 2016-12-31 13F PFIZER COM 717081103 97,270 -16,610 -14.59 3,159 -18.10 0.7949
2016-11-15 2016-09-30 13F PFIZER COM 717081103 113,880 6,754 6.30 3,857 2.25 0.8749
2016-08-25 2016-06-30 13F PFIZER COM 717081103 107,126 -3,531 -3.19 3,772 15.00 0.9196
2016-05-11 2016-03-31 13F PFIZER COM 717081103 110,657 88,584 401.32 3,280 360.03 0.7777
2016-02-09 2015-12-31 13F PFIZER COM 717081103 22,073 0 0.00 713 2.89 0.4081
2015-11-10 2015-09-30 13F PFIZER COM 717081103 22,073 -135 -0.61 693 -6.98 0.4923
2015-08-12 2015-06-30 13F PFIZER COM 717081103 22,208 -16 -0.07 745 -3.62 0.6826
2015-05-08 2015-03-31 13F PFIZER COM 717081103 22,224 0 0.00 773 11.71 0.7900
2015-02-06 2014-12-31 13F PFIZER COM 717081103 22,224 22,224 692 0.7503
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.