Pfizer Inc.
CL ˙ SNSE ˙ US7170811035
SecurityCL:PFE / Pfizer Inc.
InstitutionBarbara Oil Co.
Latest Disclosed Ownership157,488 shares
Latest Disclosed Value $ 4,422,263
Barbara Oil Co. ownership in PFE / Pfizer Inc.

On May 13, 2026 - Barbara Oil Co. filed a 13F-HR form disclosing ownership of 157,488 shares of Pfizer Inc. (CL:PFE) valued at $4,422,263 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 157,488 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.

Upgrade to unlock premium data and export to Excel .

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 157,488 0 0.00 4,422 12.78 1.7042
2026-02-17 2025-12-31 13F PFIZER COM 717081103 157,488 0 0.00 3,921 -2.27 1.4557
2025-11-12 2025-09-30 13F PFIZER COM 717081103 157,488 0 0.00 4,013 5.11 1.4947
2025-08-13 2025-06-30 13F PFIZER COM 717081103 157,488 0 0.00 3,818 -4.34 1.5006
2025-05-13 2025-03-31 13F PFIZER COM 717081103 157,488 0 0.00 3,991 -4.50 1.6207
2025-02-12 2024-12-31 13F PFIZER COM 717081103 157,488 0 0.00 4,178 -8.32 1.7319
2024-11-14 2024-09-30 13F PFIZER COM 717081103 157,488 0 0.00 4,558 3.43 1.8621
2024-08-12 2024-06-30 13F PFIZER COM 717081103 157,488 0 0.00 4,407 0.82 1.9262
2024-05-15 2024-03-31 13F PFIZER COM 717081103 157,488 0 0.00 4,370 -3.62 1.8470
2024-02-09 2023-12-31 13F PFIZER COM 717081103 157,488 0 0.00 4,534 -13.19 2.0409
2023-11-13 2023-09-30 13F PFIZER COM 717081103 157,488 0 0.00 5,224 -9.57 2.4753
2023-08-14 2023-06-30 13F PFIZER COM 717081103 157,488 0 0.00 5,777 -10.10 2.6475
2023-05-11 2023-03-31 13F PFIZER COM 717081103 157,488 0 0.00 6,426 -20.37 3.0789
2023-02-13 2022-12-31 13F PFIZER COM 717081103 157,488 0 0.00 8,070 17.08 3.8550
2022-11-14 2022-09-30 13F PFIZER COM 717081103 157,488 0 0.00 6,892 -16.53 3.7818
2022-08-11 2022-06-30 13F PFIZER COM 717081103 157,488 0 0.00 8,257 1.28 4.2815
2022-05-16 2022-03-31 13F PFIZER COM 717081103 157,488 0 0.00 8,153 -12.33 3.7350
2022-02-11 2021-12-31 13F PFIZER COM 717081103 157,488 0 0.00 9,300 37.29 4.0194
2021-11-12 2021-09-30 13F PFIZER COM 717081103 157,488 0 0.00 6,774 9.84 3.1754
2021-08-09 2021-06-30 13F PFIZER COM 717081103 157,488 0 0.00 6,167 8.08 2.8438
2021-05-11 2021-03-31 13F PFIZER COM 717081103 157,488 0 0.00 5,706 -1.57 2.7469
2021-02-16 2020-12-31 13F PFIZER COM 717081103 157,488 0 0.00 5,797 0.29 2.9179
2020-11-13 2020-09-30 13F PFIZER COM 717081103 157,488 0 0.00 5,780 12.23 3.1624
2020-08-10 2020-06-30 13F PFIZER COM 717081103 157,488 0 0.00 5,150 0.19 2.9807
2020-05-14 2020-03-31 13F PFIZER COM 717081103 157,488 0 0.00 5,140 -16.69 3.4310
2020-02-10 2019-12-31 13F PFIZER COM 717081103 157,488 0 0.00 6,170 9.03 3.2792
2019-11-12 2019-09-30 13F PFIZER COM 717081103 157,488 0 0.00 5,659 -17.05 3.2024
2019-08-01 2019-06-30 13F PFIZER COM 717081103 157,488 0 0.00 6,822 1.99 3.9025
2019-05-09 2019-03-31 13F PFIZER COM 717081103 157,488 0 0.00 6,689 -2.69 3.9671
2019-02-07 2018-12-31 13F PFIZER COM 717081103 157,488 0 0.00 6,874 -0.95 4.6456
2018-11-13 2018-09-30 13F PFIZER COM 717081103 157,488 0 0.00 6,940 21.46 4.0848
2018-08-08 2018-06-30 13F PFIZER COM 717081103 157,488 0 0.00 5,714 2.24 3.6731
2018-05-11 2018-03-31 13F PFIZER COM 717081103 157,488 0 0.00 5,589 -2.02 3.6313
2018-02-09 2017-12-31 13F PFIZER COM 717081103 157,488 0 0.00 5,704 1.46 3.6389
2017-11-13 2017-09-30 13F PFIZER COM 717081103 157,488 0 0.00 5,622 6.28 3.8842
2017-08-09 2017-06-30 13F PFIZER COM 717081103 157,488 0 0.00 5,290 -1.82 3.8084
2017-05-12 2017-03-31 13F PFIZER COM 717081103 157,488 0 0.00 5,388 5.34 3.9962
2017-02-06 2016-12-31 13F PFIZER COM 717081103 157,488 0 0.00 5,115 -4.11 3.9745
2016-11-14 2016-09-30 13F PFIZER COM 717081103 157,488 0 0.00 5,334 -3.81 4.2563
2016-08-08 2016-06-30 13F PFIZER COM 717081103 157,488 0 0.00 5,545 18.79 4.4627
2016-05-10 2016-03-31 13F PFIZER COM 717081103 157,488 0 0.00 4,668 -8.18 3.9420
2016-02-04 2015-12-31 13F PFIZER COM 717081103 157,488 0 0.00 5,084 2.77 4.2838
2015-11-02 2015-09-30 13F PFIZER COM 717081103 157,488 0 0.00 4,947 -6.32 4.3857
2015-08-11 2015-06-30 13F PFIZER COM 717081103 157,488 0 0.00 5,281 -3.61 4.4000
2015-05-12 2015-03-31 13F PFIZER COM 717081103 157,488 0 0.00 5,479 11.68 4.4895
2015-02-12 2014-12-31 13F PFIZER COM 717081103 157,488 0 0.00 4,906 5.35 3.9815
2015-02-12 2014-09-30 13F PFIZER COM 717081103 157,488 0 0.00 4,657 -0.36 3.9401
2015-02-12 2014-06-30 13F PFIZER COM 717081103 157,488 0 0.00 4,674 -7.61 3.9774
2015-02-12 2014-03-31 13F PFIZER COM 717081103 157,488 0 0.00 5,059 4.87 4.4686
2014-02-14 2013-12-31 13F PFIZER COM 717081103 157,488 157,488 4,824 4.1930
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.