Pfizer Inc.
CL ˙ SNSE ˙ US7170811035
SecurityCL:PFE / Pfizer Inc.
InstitutionQuantinno Capital Management LP
Latest Disclosed Ownership1,855,826 shares
Latest Disclosed Value $ 52,111,596
Quantinno Capital Management LP reports 10.45% increase in ownership of PFE / Pfizer Inc.

On May 15, 2026 - Quantinno Capital Management LP filed a 13F-HR form disclosing ownership of 1,855,826 shares of Pfizer Inc. (CL:PFE) valued at $52,111,596 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,680,266 shares of Pfizer Inc.. This represents a change in shares of 10.45% 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 1,855,826 175,560 10.45 52,112 24.55 0.0870
2026-02-17 2025-12-31 13F PFIZER COM 717081103 1,680,266 42,820 2.62 41,839 0.28 0.0840
2025-11-14 2025-09-30 13F PFIZER COM 717081103 1,637,446 684,298 71.79 41,722 80.58 0.1138
2025-08-14 2025-06-30 13F PFIZER COM 717081103 953,148 355,007 59.35 23,104 52.44 0.0998
2025-05-12 2025-03-31 13F PFIZER COM 717081103 598,141 203,862 51.71 15,157 44.89 0.0987
2025-02-14 2024-12-31 13F PFIZER COM 717081103 394,279 24,490 6.62 10,460 -2.25 0.1029
2024-11-14 2024-09-30 13F PFIZER COM 717081103 369,789 89,835 32.09 10,702 36.61 0.1391
2024-08-14 2024-06-30 13F PFIZER COM 717081103 279,954 436 0.16 7,833 0.98 0.1409
2024-05-14 2024-03-31 13F PFIZER COM 717081103 279,518 217,294 349.21 7,757 333.11 0.1686
2024-02-14 2023-12-31 13F PFIZER COM 717081103 62,224 -51,437 -45.25 1,791 -52.49 0.0627
2023-11-14 2023-09-30 13F PFIZER COM 717081103 113,661 -109,432 -49.05 3,770 -53.93 0.1716
2023-08-04 2023-06-30 13F PFIZER COM 717081103 223,093 25,461 12.88 8,183 1.49 0.4674
2023-05-03 2023-03-31 13F PFIZER COM 717081103 197,632 65,028 49.04 8,063 18.66 0.5332
2023-02-13 2022-12-31 13F PFIZER COM 717081103 132,604 56,729 74.77 6,795 104.67 0.5069
2022-11-08 2022-09-30 13F PFIZER COM 717081103 75,875 4,661 6.55 3,320 -11.09 0.4275
2022-08-15 2022-06-30 13F PFIZER COM 717081103 71,214 11,177 18.62 3,734 20.14 0.5387
2022-05-12 2022-03-31 13F PFIZER COM 717081103 60,037 3,930 7.00 3,108 -6.19 0.4740
2022-02-14 2021-12-31 13F PFIZER COM 717081103 56,107 56,107 3,313 0.5998
2021-05-17 2021-03-31 13F PFIZER COM 717081103 0 -9,401 -100.00 0 -100.00
2021-02-09 2020-12-31 13F PFIZER COM 717081103 9,401 0 0.00 346 0.29 0.2675
2020-11-16 2020-09-30 13F PFIZER COM 717081103 9,401 1,159 14.06 345 27.78 0.2307
2020-08-14 2020-06-30 13F PFIZER COM 717081103 8,242 8,242 270 0.2663
2020-05-15 2020-03-31 13F PFIZER COM 717081103 0 -20,568 -100.00 0 -100.00
2020-02-14 2019-12-31 13F PFIZER COM 717081103 20,568 20,568 806 0.5072
2019-11-14 2019-09-30 13F PFIZER COM 717081103 0 -12,520 -100.00 0 -100.00
2019-08-14 2019-06-30 13F PFIZER COM 717081103 12,520 12,520 542 0.3181
2019-05-14 2019-03-31 13F PFIZER COM 717081103 0 -9,843 -100.00 0 -100.00
2019-02-14 2018-12-31 13F PFIZER COM 717081103 9,843 9,843 430 0.3502
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.