輝瑞公司
CL ˙ SNSE ˙ US7170811035
SecurityCL:PFE / Pfizer Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership92,685,370 shares
Latest Disclosed Value $ 2,602,605,278
Morgan Stanley reports 4.01% increase in ownership of PFE / Pfizer Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 92,685,370 shares of Pfizer Inc. (CL:PFE) valued at $2,602,605,278 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 89,113,604 shares of Pfizer Inc.. This represents a change in shares of 4.01% 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)
2026-05-15 2026-03-31 13F PFIZER COM 717081103 92,685,370 3,571,766 4.01 2,602,605 17.29 0.1568
2026-05-27 2025-12-31 13F/A-1 PFIZER COM 717081103 89,113,604 14,342,946 19.18 2,218,929 16.47 0.1325
2026-02-13 2025-12-31 13F PFIZER COM 717081103 89,113,604 14,342,946 2,218,929 0.1325
2026-05-27 2025-09-30 13F/A-1 PFIZER COM 717081103 74,770,658 4,635,350 6.61 1,905,156 12.06 0.1153
2025-11-14 2025-09-30 13F PFIZER COM 717081103 74,770,658 4,635,350 1,905,156 0.1153
2025-08-15 2025-06-30 13F PFIZER COM 717081103 70,135,308 -10,307,009 -12.81 1,700,080 -16.60 0.1107
2025-05-15 2025-03-31 13F PFIZER COM 717081103 80,442,317 6,544,527 8.86 2,038,408 3.97 0.1457
2025-05-15 2024-12-31 13F/A-1 PFIZER COM 717081103 73,897,790 -4,073,426 -5.22 1,960,508 -13.12 0.1374
2025-02-14 2024-12-31 13F PFIZER COM 717081103 73,897,790 -4,073,426 1,960,508 0.1373
2025-05-14 2024-09-30 13F/A-2 PFIZER COM 717081103 77,971,216 498,970 0.64 2,256,487 4.10 0.1636
2025-02-14 2024-09-30 13F/A-1 PFIZER COM 717081103 77,971,216 498,970 2,256,487 0.1636
2024-11-14 2024-09-30 13F PFIZER COM 717081103 77,971,216 498,970 2,256,487 0.1636
2025-05-14 2024-06-30 13F/A-2 PFIZER COM 717081103 77,472,246 -7,320,593 -8.63 2,167,674 -7.88 0.1677
2024-10-17 2024-06-30 13F/A-1 PFIZER COM 717081103 77,472,246 -7,320,593 2,167,674 0.1677
2024-08-14 2024-06-30 13F PFIZER COM 717081103 77,472,246 -7,320,593 2,167,674 0.1677
2024-10-17 2024-03-31 13F/A-2 PFIZER COM 717081103 84,792,839 2,686,303 3.27 2,353,001 -0.46 0.1888
2024-08-16 2024-03-31 13F/A-1 PFIZER COM 717081103 84,792,839 2,686,303 2,353,001 0.1888
2024-05-15 2024-03-31 13F PFIZER COM 717081103 84,792,839 2,686,303 2,353,001 0.1888
2024-08-16 2023-12-31 13F/A-1 PFIZER COM 717081103 82,106,536 -2,821,266 -3.32 2,363,847 -16.09 0.2083
2024-02-13 2023-12-31 13F PFIZER COM 717081103 82,106,536 -2,821,266 2,363,847 0.2083
2023-11-15 2023-09-30 13F PFIZER COM 717081103 84,927,802 348,628 0.41 2,817,055 -9.20 0.2865
2023-08-14 2023-06-30 13F PFIZER COM 717081103 84,579,174 3,929,745 4.87 3,102,364 -5.72 0.3058
2023-05-15 2023-03-31 13F PFIZER COM 717081103 80,649,429 1,150,068 1.45 3,290,497 -19.22 0.3528
2023-02-14 2022-12-31 13F PFIZER COM 717081103 79,499,361 7,419,929 10.29 4,073,547 29.15 0.4627
2022-11-14 2022-09-30 13F PFIZER COM 717081103 72,079,432 -469,003 -0.65 3,154,196 -17.08 0.4299
2022-10-27 2022-06-30 13F/A-1 PFIZER COM 717081103 72,548,435 25,173,688 53.14 3,803,714 55.09 0.4937
2022-08-15 2022-06-30 13F PFIZER COM 717081103 72,548,435 25,173,688 3,803,714 0.4937
2022-10-27 2022-03-31 13F/A-1 PFIZER COM 717081103 47,374,747 320,901 0.68 2,452,592 -11.73 0.3308
2022-05-13 2022-03-31 13F PFIZER COM 717081103 47,374,747 320,901 2,452,592 0.3308
2022-02-14 2021-12-31 13F PFIZER COM 717081103 47,053,846 399,821 0.86 2,778,529 38.47 0.3431
2021-11-15 2021-09-30 13F PFIZER COM 717081103 46,654,025 -1,240,055 -2.59 2,006,589 6.99 0.2703
2021-08-23 2021-06-30 13F/A-1 PFIZER COM 717081103 47,894,080 1,582,052 3.42 1,875,532 11.78 0.2474
2021-08-16 2021-06-30 13F PFIZER COM 717081103 47,894,080 1,582,052 1,875,532 0.2470
2021-05-17 2021-03-31 13F PFIZER COM 717081103 46,312,028 -7,298,083 -13.61 1,677,884 -14.97 0.2465
2021-02-16 2020-12-31 13F PFIZER COM 717081103 53,610,111 7,540,245 16.37 1,973,389 16.72 0.3048
2020-11-13 2020-09-30 13F PFIZER COM 717081103 46,069,866 2,777,676 6.42 1,690,763 19.43 0.3270
2020-08-14 2020-06-30 13F PFIZER COM 717081103 43,292,190 -2,111,897 -4.65 1,415,655 -4.48 0.3133
2020-05-26 2020-03-31 13F/A-1 PFIZER COM 717081103 45,404,087 -1,944,379 -4.11 1,481,991 -20.11 0.4027
2020-05-15 2020-03-31 13F PFIZER COM 717081103 45,404,087 -1,944,379 1,481,991 113,847.8031
2020-02-14 2019-12-31 13F PFIZER COM 717081103 47,348,466 2,492,660 5.56 1,855,111 15.10 0.4314
2019-11-14 2019-09-30 13F PFIZER COM 717081103 44,855,806 -1,680,971 -3.61 1,611,669 -20.05 0.4266
2019-08-14 2019-06-30 13F PFIZER COM 717081103 46,536,777 1,071,897 2.36 2,015,972 4.41 0.5365
2019-05-15 2019-03-31 13F PFIZER COM 717081103 45,464,880 -4,470,687 -8.95 1,930,893 -11.41 0.5466
2019-02-14 2018-12-31 13F PFIZER COM 717081103 49,935,567 -5,558,279 -10.02 2,179,688 -10.87 0.6523
2019-04-23 2018-09-30 13F/A-2 PFIZER COM 717081103 55,493,846 1,126,612 2.07 2,445,614 23.99 0.6121
2018-11-20 2018-09-30 13F/A-1 PFIZER COM 717081103 55,493,846 0 2,445,614 0.6121
2018-11-14 2018-09-30 13F PFIZER COM 717081103 55,493,846 54,255,293 2,445,614
2019-04-23 2018-06-30 13F/A-1 PFIZER COM 717081103 54,367,234 1,345,528 2.54 1,972,442 4.82 0.5329
2018-08-14 2018-06-30 13F PFIZER COM 717081103 54,367,234 54,050,547 1,972,442
2019-04-23 2018-03-31 13F/A-1 PFIZER COM 717081103 53,021,706 3,102,438 6.21 1,881,740 4.07 0.5223
2018-05-14 2018-03-31 13F PFIZER COM 717081103 53,021,706 52,725,900 1,881,740
2019-04-23 2017-12-31 13F/A-1 PFIZER COM 717081103 49,919,268 2,953,018 6.29 1,808,076 7.84 0.4949
2018-02-14 2017-12-31 13F PFIZER COM 717081103 49,919,268 49,474,678 1,808,076
2017-11-14 2017-09-30 13F PFIZER COM 717081103 46,966,250 -160,235 -0.34 1,676,696 5.92 0.5022
2017-08-11 2017-06-30 13F PFIZER COM 717081103 47,126,485 -2,550,664 -5.13 1,582,976 -6.85 0.4782
2017-05-22 2017-03-31 13F/A-1 PFIZER COM 717081103 49,677,149 4,042,608 8.86 1,699,456 14.66 0.5223
2017-05-12 2017-03-31 13F PFIZER COM 717081103 49,677,149 1,699,456
2017-02-22 2016-12-31 13F/A-1 PFIZER COM 717081103 45,634,541 6,262,794 15.91 1,482,210 11.15 0.4851
2017-02-13 2016-12-31 13F PFIZER COM 717081103 45,634,541 1,482,210
2016-11-10 2016-09-30 13F PFIZER COM 717081103 39,371,747 2,869,456 7.86 1,333,522 3.76 0.4554
2016-08-12 2016-06-30 13F PFIZER COM 717081103 36,502,291 789,962 2.21 1,285,246 21.42 0.4642
2016-05-12 2016-03-31 13F PFIZER COM 717081103 35,712,329 -1,701,078 -4.55 1,058,513 -12.35 0.4074
2016-02-09 2015-12-31 13F PFIZER COM 717081103 37,413,407 1,679,910 4.70 1,207,705 7.60 0.4372
2016-02-08 2015-09-30 13F/A-1 PFIZER COM 717081103 35,733,497 1,684,290 4.95 1,122,392 -1.69 0.4148
2015-11-09 2015-09-30 13F PFIZER COM 717081103 35,733,497 1,122,392
2015-08-12 2015-06-30 13F PFIZER COM 717081103 34,049,207 -1,095,484 -3.12 1,141,671 -6.63 0.3957
2015-05-14 2015-03-31 13F PFIZER COM 717081103 35,144,691 438,641 1.26 1,222,684 13.10 0.4503
2015-02-13 2014-12-31 13F PFIZER COM 717081103 34,706,050 302,242 0.88 1,081,089 6.27 0.3953
2014-12-16 2014-09-30 13F/A-1 PFIZER COM 717081103 34,403,808 3,289,255 10.57 1,017,320 1.79 0.3912
2014-11-14 2014-09-30 13F PFIZER COM 717081103 34,403,808 1,017,320
2014-05-13 2014-03-31 13F PFIZER COM 717081103 31,114,553 256,773 0.83 999,402 5.74 0.4185
2014-02-13 2013-12-31 13F PFIZER COM 717081103 30,857,780 266,813 0.87 945,173 7.56 0.4020
2013-11-13 2013-09-30 13F PFIZER INC COM COM 717081103 30,590,967 -8,920,422 -22.58 878,725 -20.60 0.4154
2013-08-08 2013-06-30 13F PFIZER INC COM COM 717081103 39,511,389 39,511,389 1,106,712 0.5583
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.