Pfizer Inc.
CL ˙ SNSE ˙ US7170811035
SecurityCL:PFE / Pfizer Inc.
InstitutionSolstein Capital, LLC
Latest Disclosed Ownership2,903 shares
Latest Disclosed Value $ 81,516
Solstein Capital, LLC ownership in PFE / Pfizer Inc.

On May 14, 2026 - Solstein Capital, LLC filed a 13F-HR form disclosing ownership of 2,903 shares of Pfizer Inc. (CL:PFE) valued at $81,516 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 2,903 shares of Pfizer Inc.. This represents a change in shares of 0.00% 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)
2026-05-14 2026-03-31 13F PFIZER COM 717081103 2,903 0 0.00 82 12.50 0.0335
2026-02-13 2025-12-31 13F PFIZER COM 717081103 2,903 -450 -13.42 72 -15.29 0.0290
2025-11-12 2025-09-30 13F PFIZER COM 717081103 3,353 -1,720 -33.90 85 -30.33 0.0194
2025-08-01 2025-06-30 13F PFIZER COM 717081103 5,073 1,270 33.39 123 27.08 0.0631
2025-04-17 2025-03-31 13F PFIZER COM 717081103 3,803 0 0.00 96 -4.00 0.0561
2025-02-13 2024-12-31 13F PFIZER COM 717081103 3,803 0 0.00 101 -9.09 0.0564
2024-10-29 2024-09-30 13F PFIZER COM 717081103 3,803 0 0.00 110 3.77 0.0583
2024-07-26 2024-06-30 13F PFIZER COM 717081103 3,803 0 0.00 106 0.95 0.0694
2024-04-24 2024-03-31 13F PFIZER COM 717081103 3,803 -452 -10.62 106 -13.93 0.0732
2024-01-23 2023-12-31 13F PFIZER COM 717081103 4,255 0 0.00 123 -13.48 0.0906
2023-10-25 2023-09-30 13F PFIZER COM 717081103 4,255 0 0.00 141 -9.62 0.1213
2023-07-27 2023-06-30 13F PFIZER COM 717081103 4,255 0 0.00 156 -9.83 0.1301
2023-04-19 2023-03-31 13F PFIZER COM 717081103 4,255 0 0.00 174 -20.64 0.1511
2023-02-02 2022-12-31 13F PFIZER COM 717081103 4,255 0 0.00 218 17.20 0.1824
2022-11-01 2022-09-30 13F PFIZER COM 717081103 4,255 0 0.00 186 -16.59 0.1639
2022-08-09 2022-06-30 13F PFIZER COM 717081103 4,255 0 0.00 223 1.36 0.1707
2022-05-05 2022-03-31 13F PFIZER COM 717081103 4,255 0 0.00 220 -12.35 0.1450
2022-01-27 2021-12-31 13F PFIZER COM 717081103 4,255 0 0.00 251 37.16 0.1513
2021-10-27 2021-09-30 13F PFIZER COM 717081103 4,255 450 11.83 183 22.82 0.1050
2021-08-12 2021-06-30 13F PFIZER INC COM COM 717081103 3,805 1,921 101.96 149 119.12 0.1835
2021-05-13 2021-03-31 13F Pfizer COM 717081103 1,884 1,884 68 0.0925
2021-02-11 2020-12-31 13F Pfizer Common 717081103 0 -2,114 -100.00 0 -100.00
2020-11-12 2020-09-30 13F Pfizer Common 717081103 2,114 0 0.00 78 13.04 0.1747
2020-08-12 2020-06-30 13F Pfizer Common 717081103 2,114 0 0.00 69 0.00 0.1638
2020-05-12 2020-03-31 13F Pfizer Common 717081103 2,114 230 12.21 69 -6.76 0.2657
2020-02-12 2019-12-31 13F Pfizer Common 717081103 1,884 1,884 74 0.1490
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.