Pfizer Inc.
CL ˙ SNSE ˙ US7170811035
SecurityCL:PFE / Pfizer Inc.
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership3,223,714 shares
Latest Disclosed Value $ 90,506,006
Janus Henderson Group Plc reports 63.31% decrease in ownership of PFE / Pfizer Inc.

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 3,223,714 shares of Pfizer Inc. (CL:PFE) valued at $90,506,006 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 8,786,084 shares of Pfizer Inc.. This represents a change in shares of -63.31% 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)
2026-05-18 2026-03-31 13F/A-1 PFIZER COM 717081103 3,223,714 -5,562,370 -63.31 90,506 -58.64 0.0153
2026-05-15 2026-03-31 13F PFIZER COM 717081103 3,223,714 -5,562,370 -63.31 90,506 -58.64 0.0168
2026-02-17 2025-12-31 13F PFIZER COM 717081103 8,786,084 7,489,189 577.47 218,817 562.32 0.0980
2025-11-14 2025-09-30 13F PFIZER COM 717081103 1,296,895 583,454 81.78 33,039 91.08 0.0151
2025-08-14 2025-06-30 13F PFIZER COM 717081103 713,441 -28,924 -3.90 17,290 -7.54 0.0085
2025-05-15 2025-03-31 13F PFIZER COM 717081103 742,365 -215,950 -22.53 18,700 -26.48 0.0103
2025-02-14 2024-12-31 13F PFIZER COM 717081103 958,315 427,886 80.67 25,434 65.73 0.0129
2024-11-14 2024-09-30 13F PFIZER COM 717081103 530,429 2,600 0.49 15,348 3.90 0.0079
2024-08-14 2024-06-30 13F PFIZER COM 717081103 527,829 -48,346 -8.39 14,771 -7.57 0.0079
2024-05-15 2024-03-31 13F PFIZER COM 717081103 576,175 -204,315 -26.18 15,981 -28.87 0.0087
2024-02-14 2023-12-31 13F PFIZER COM 717081103 780,490 231,644 42.21 22,468 23.40 0.0134
2023-11-14 2023-09-30 13F PFIZER COM 717081103 548,846 -2,591,411 -82.52 18,208 -84.19 0.0119
2023-08-14 2023-06-30 13F PFIZER COM 717081103 3,140,257 -438,915 -12.26 115,182 -21.12 0.0716
2023-05-15 2023-03-31 13F PFIZER COM 717081103 3,579,172 54,860 1.56 146,022 -19.14 0.0963
2023-02-14 2022-12-31 13F PFIZER COM 717081103 3,524,312 -124,057 -3.40 180,591 13.10 0.1290
2023-01-13 2022-09-30 13F/A-1 PFIZER COM 717081103 3,648,369 315,312 9.46 159,680 -8.64 0.1196
2022-11-14 2022-09-30 13F PFIZER COM 717081103 3,648,369 315,312 159,680 0.1195
2022-08-15 2022-06-30 13F PFIZER COM 717081103 3,333,057 -1,138,805 -25.47 174,780 -24.50 0.1205
2022-05-16 2022-03-31 13F PFIZER COM 717081103 4,471,862 3,488,305 354.66 231,511 298.63 0.1118
2022-02-14 2021-12-31 13F PFIZER COM 717081103 983,557 244,483 33.08 58,077 82.72 0.0242
2021-11-16 2021-09-30 13F PFIZER COM 717081103 739,074 -219,202 -22.87 31,785 -15.31 0.0139
2021-08-16 2021-06-30 13F PFIZER COM 717081103 958,276 -3,286,278 -77.42 37,529 -75.60 0.0161
2021-05-17 2021-03-31 13F PFIZER COM 717081103 4,244,554 -336,381 -7.34 153,798 -8.75 0.0702
2021-02-16 2020-12-31 13F PFIZER COM 717081103 4,580,935 -475,164 -9.40 168,554 -9.14 0.0783
2020-11-16 2020-09-30 13F PFIZER COM 717081103 5,056,099 -464,249 -8.41 185,504 2.77 0.0967
2020-08-14 2020-06-30 13F PFIZER COM 717081103 5,520,348 -433,873 -7.29 180,497 -7.15 0.1013
2020-05-14 2020-03-31 13F PFIZER COM 717081103 5,954,221 -1,951,370 -24.68 194,388 -37.23 0.1338
2020-02-18 2019-12-31 13F PFIZER COM 717081103 7,905,591 -1,246,496 -13.62 309,675 -5.82 0.1586
2019-11-14 2019-09-30 13F PFIZER COM 717081103 9,152,087 -723,246 -7.32 328,815 -23.15 0.1781
2019-07-31 2019-06-30 13F PFIZER COM 717081103 9,875,333 -1,326,946 -11.85 427,856 -10.07 0.2330
2019-04-30 2019-03-31 13F PFIZER COM 717081103 11,202,279 2,092,272 22.97 475,780 19.65 0.2637
2019-02-06 2018-12-31 13F PFIZER COM 717081103 9,110,007 -2,290,532 -20.09 397,633 -20.86 0.2536
2018-11-09 2018-09-30 13F PFIZER COM 717081103 11,400,539 -397,048 -3.37 502,454 17.37 0.2685
2018-08-10 2018-06-30 13F PFIZER COM 717081103 11,797,587 -108,010 -0.91 428,112 1.29 0.2440
2018-05-14 2018-03-31 13F PFIZER COM 717081103 11,905,597 191,128 1.63 422,656 -0.44 0.2491
2018-03-12 2017-12-31 13F/A-1 PFIZER COM 717081103 11,714,469 612,756 5.52 424,519 7.13 0.2614
2018-02-09 2017-12-31 13F PFIZER COM 717081103 11,714,469 612,756 424,519
2017-11-14 2017-09-30 13F PFIZER COM 717081103 11,101,713 -2,073,474 -15.74 396,250 -10.47 0.2540
2017-08-17 2017-06-30 13F/A-1 PFIZER COM 717081103 13,175,187 9,339,749 243.51 442,574 237.35 0.3016
2017-08-14 2017-06-30 13F PFIZER COM 717081103 13,175,187 9,339,749 442,574
2017-05-03 2017-03-31 13F PFIZER COM 717081103 3,835,438 -64,678 -1.66 131,191 3.52 0.9210
2017-01-30 2016-12-31 13F PFIZER COM 717081103 3,900,116 -85,513 -2.15 126,734 -6.10 0.9347
2016-10-24 2016-09-30 13F PFIZER COM 717081103 3,985,629 1,099,826 38.11 134,973 32.85 0.9947
2016-07-29 2016-06-30 13F PFIZER COM 717081103 2,885,803 -186,433 -6.07 101,595 11.61 0.8448
2016-05-12 2016-03-31 13F PFIZER COM 717081103 3,072,236 129,257 4.39 91,030 -4.16 0.7384
2016-02-03 2015-12-31 13F PFIZER COM 717081103 2,942,979 -1,397,380 -32.20 94,985 -30.32 0.7622
2015-11-16 2015-09-30 13F PFIZER COM 717081103 4,340,359 -9,574 -0.22 136,309 -6.50 1.2007
2015-08-17 2015-06-30 13F PFIZER COM 717081103 4,349,933 85,800 2.01 145,788 -1.77 1.1456
2015-06-02 2015-03-31 13F/A-1 PFIZER COM 717081103 4,264,133 -39,346 -0.91 148,413 10.69 1.1449
2015-05-15 2015-03-31 13F PFIZER COM 717081103 4,264,133 148,413
2015-02-12 2014-12-31 13F PFIZER COM 717081103 4,303,479 -332,148 -7.17 134,075 -2.21 0.9667
2014-11-12 2014-09-30 13F PFIZER COM 717081103 4,635,627 433,423 10.31 137,099 9.94 1.2896
2014-08-13 2014-06-30 13F PFIZER COM 717081103 4,202,204 129,771 3.19 124,700 -4.68 1.1644
2014-05-08 2014-03-31 13F PFIZER COM 717081103 4,072,433 -122,220 -2.91 130,827 1.84 1.2736
2014-01-14 2013-12-31 13F PFIZER COM 717081103 4,194,653 47,709 1.15 128,461 7.88 1.2979
2013-11-12 2013-09-30 13F PFIZER COM 717081103 4,146,944 15,093 0.37 119,079 3.76 1.3136
2013-08-15 2013-06-30 13F PFIZER COM 717081103 4,131,851 4,131,851 114,762 1.3416
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.