Pfizer Inc.
US ˙ NYSE ˙ US7170811035

SecurityPFE / Pfizer Inc.
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership2,713,553 shares
Latest Disclosed Value $ 76,197
Natixis Advisors, L.p. reports 23.05% increase in ownership of PFE / Pfizer Inc.

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 2,713,553 shares of Pfizer Inc. (US:PFE) valued at $76,196,568 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 2,205,275 shares of Pfizer Inc.. This represents a change in shares of 23.05% during the quarter. The current value of the position is $68,761,433 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)
2026-05-13 2026-03-31 13F PFIZER COM 717081103 2,713,553 508,278 23.05 76 40.74 0.1060
2026-02-10 2025-12-31 13F PFIZER COM 717081103 2,205,275 476,073 27.53 55 22.73 0.0778
2025-11-13 2025-09-30 13F PFIZER INC COM 717081103 1,729,202 -522,523 -23.21 44 -18.52 0.0643
2025-08-13 2025-06-30 13F PFIZER COM 717081103 2,251,725 -290,771 -11.44 55 -15.62 0.0866
2025-05-08 2025-03-31 13F PFIZER COM 717081103 2,542,496 318,688 14.33 64 10.34 0.1191
2025-02-10 2024-12-31 13F PFIZER COM 717081103 2,223,808 -174,092 -7.26 59 -15.94 0.1102
2024-11-06 2024-09-30 13F PFIZER COM 717081103 2,397,900 -203,516 -7.82 69 -4.17 0.1353
2024-08-01 2024-06-30 13F PFIZER COM 717081103 2,601,416 387,856 17.52 73 18.03 0.1583
2024-04-25 2024-03-31 13F PFIZER COM 717081103 2,213,560 980,321 79.49 61 74.29 0.1412
2024-02-06 2023-12-31 13F PFIZER COM 717081103 1,233,239 -157,733 -11.34 36 -23.91 0.0935
2023-11-13 2023-09-30 13F PFIZER COM 717081103 1,390,972 -1,061,722 -43.29 46 -48.31 0.1411
2023-08-15 2023-06-30 13F PFIZER COM 717081103 2,452,694 1,232,948 101.08 90 81.63 0.2778
2023-05-11 2023-03-31 13F PFIZER COM 717081103 1,219,746 -927,861 -43.20 50 -55.45 0.1713
2023-01-27 2022-12-31 13F PFIZER COM 717081103 2,147,607 816,561 61.35 110 -99.81 0.4160
2022-11-14 2022-09-30 13F PFIZER COM 717081103 1,331,046 -317,452 -19.26 58,247 -32.61 0.2464
2022-08-12 2022-06-30 13F PFIZER COM 717081103 1,648,498 50,997 3.19 86,431 4.51 0.3801
2022-05-12 2022-03-31 13F PFIZER COM 717081103 1,597,501 478,224 42.73 82,703 25.15 0.3154
2022-02-08 2021-12-31 13F PFIZER COM 717081103 1,119,277 253,047 29.21 66,084 77.32 0.2524
2021-11-15 2021-09-30 13F PFIZER COM 717081103 866,230 6,647 0.77 37,269 10.71 0.1533
2021-08-12 2021-06-30 13F PFIZER COM 717081103 859,583 65,556 8.26 33,663 17.02 0.1571
2021-05-05 2021-03-31 13F PFIZER COM 717081103 794,027 -49,574 -5.88 28,767 -7.36 0.1501
2021-02-12 2020-12-31 13F PFIZER COM 717081103 843,601 -180,987 -17.66 31,053 -17.42 0.1789
2020-11-12 2020-09-30 13F PFIZER COM 717081103 1,024,588 -162,700 -13.70 37,603 -3.14 0.2366
2020-08-11 2020-06-30 13F PFIZER COM 717081103 1,187,288 -27,257 -2.24 38,824 -2.07 0.2577
2020-04-27 2020-03-31 13F PFIZER COM 717081103 1,214,545 -199,145 -14.09 39,643 -28.43 0.3231
2020-02-10 2019-12-31 13F PFIZER COM 717081103 1,413,690 248,209 21.30 55,389 32.27 0.3907
2019-11-12 2019-09-30 13F PFIZER COM 717081103 1,165,481 -169,157 -12.67 41,876 -27.57 0.3324
2019-08-12 2019-06-30 13F PFIZER COM 717081103 1,334,638 -22,954 -1.69 57,817 0.28 0.4722
2019-05-15 2019-03-31 13F/A-1 PFIZER COM 717081103 1,357,592 -100,855 -6.92 57,657 -9.43 0.5048
2019-05-15 2019-03-31 13F PFIZER COM 717081103 1,357,592 1,278,370 57,657
2019-02-13 2018-12-31 13F/A-1 PFIZER COM 717081103 1,458,447 21,640 1.51 63,661 0.54 0.6286
2019-02-13 2018-12-31 13F PFIZER COM 717081103 1,458,447 1,366,994 63,661
2018-11-13 2018-09-30 13F PFIZER COM 717081103 1,436,807 -131,372 -8.38 63,320 11.30 0.5574
2018-08-14 2018-06-30 13F/A-1 PFIZER COM 717081103 1,568,179 67,738 4.51 56,893 6.84 0.5435
2018-08-14 2018-06-30 13F PFIZER COM 717081103 1,568,179 56,893
2018-05-10 2018-03-31 13F PFIZER COM 717081103 1,500,441 40,754 2.79 53,250 0.72 0.5256
2018-02-14 2017-12-31 13F PFIZER COM 717081103 1,459,687 19,653 1.36 52,869 2.84 0.5385
2017-11-14 2017-09-30 13F PFIZER COM 717081103 1,440,034 58,252 4.22 51,407 10.76 0.5431
2017-07-27 2017-06-30 13F PFIZER COM 717081103 1,381,782 49,992 3.75 46,414 1.87 0.5024
2017-05-12 2017-03-31 13F PFIZER COM 717081103 1,331,790 110,840 9.08 45,560 14.89 0.5048
2017-02-07 2016-12-31 13F PFIZER COM 717081103 1,220,950 128,028 11.71 39,657 7.13 0.4768
2016-11-04 2016-09-30 13F PFIZER COM 717081103 1,092,922 114,007 11.65 37,016 7.40 0.4795
2016-08-01 2016-06-30 13F PFIZER COM 717081103 978,915 38,913 4.14 34,467 23.71 0.4765
2016-05-06 2016-03-31 13F PFIZER COM 717081103 940,002 115,294 13.98 27,861 4.66 0.4169
2016-02-12 2015-12-31 13F PFIZER COM 717081103 824,708 21,107 2.63 26,621 5.47 0.4364
2015-11-12 2015-09-30 13F PFIZER COM 717081103 803,601 36,989 4.82 25,241 -1.81 0.4378
2015-08-14 2015-06-30 13F PFIZER COM 717081103 766,612 62,616 8.89 25,705 4.95 0.4365
2015-05-15 2015-03-31 13F PFIZER COM 717081103 703,996 35,489 5.31 24,492 17.61 0.4299
2015-02-05 2014-12-31 13F PFIZER COM 717081103 668,507 -12,320 -1.81 20,825 3.44 0.3898
2014-11-03 2014-09-30 13F PFIZER COM 717081103 680,827 -52,438 -7.15 20,133 -7.49 0.4040
2014-08-13 2014-06-30 13F PFIZER COM 717081103 733,265 -31,561 -4.13 21,763 -11.41 0.3118
2014-05-13 2014-03-31 13F PFIZER COM 717081103 764,826 27,847 3.78 24,566 8.83 0.3781
2014-02-12 2013-12-31 13F PFIZER COM 717081103 736,979 29,147 4.12 22,573 11.02 0.3695
2013-10-30 2013-09-30 13F PFIZER COM 717081103 707,832 106,584 17.73 20,332 20.73 0.3744
2013-07-19 2013-06-30 13F PFIZER COM 717081103 601,248 601,248 16,841 0.3355
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.