Pfizer Inc.
US ˙ NYSE ˙ US7170811035

SecurityPFE / Pfizer Inc.
InstitutionPFG Advisors
Latest Disclosed Ownership18,390 shares
Latest Disclosed Value $ 516,398
PFG Advisors ownership in PFE / Pfizer Inc.

On May 5, 2026 - PFG Advisors filed a 13F-HR form disclosing ownership of 18,390 shares of Pfizer Inc. (US:PFE) valued at $516,391 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 17,191 shares of Pfizer Inc.. This represents a change in shares of 6.97% during the quarter. The current value of the position is $472,439 USD.

PFG Advisors has a history of taking positions in derivatives of the underlying security (PFE) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

PFE / Pfizer Inc. Historical Put/Call Ratio
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)
2026-05-05 2026-03-31 13F PFIZER COM 717081103 18,390 1,199 6.97 516 20.56 0.0251
2026-01-27 2025-12-31 13F PFIZER COM 717081103 17,191 -4,695 -21.45 428 -23.16 0.0208
2025-11-13 2025-09-30 13F PFIZER COM 717081103 21,886 2,339 11.97 558 17.76 0.0228
2025-08-07 2025-06-30 13F PFIZER COM 717081103 19,547 -481 -2.40 474 -6.71 0.0219
2025-05-06 2025-03-31 13F PFIZER COM 717081103 20,028 -1,743 -8.01 507 -12.13 0.0284
2025-02-07 2024-12-31 13F PFIZER COM 717081103 21,771 -682 -3.04 578 -11.09 0.0354
2024-10-15 2024-09-30 13F PFIZER COM 717081103 22,453 481 2.19 650 5.70 0.0410
2024-08-08 2024-06-30 13F PFIZER COM 717081103 21,972 -2,404 -9.86 615 -9.17 0.0416
2024-05-07 2024-03-31 13F PFIZER COM 717081103 24,376 -1,573 -6.06 676 -9.50 0.0494
2024-01-19 2023-12-31 13F PFIZER COM 717081103 25,949 -3,146 -10.81 747 -22.59 0.0603
2023-10-13 2023-09-30 13F PFIZER COM 717081103 29,095 -16,349 -35.98 965 -42.08 0.0867
2023-07-20 2023-06-30 13F PFIZER COM 717081103 45,444 -1,456 -3.10 1,667 -12.91 0.1269
2023-04-21 2023-03-31 13F PFIZER COM 717081103 46,900 -4,876 -9.42 1,914 -27.87 0.1601
2023-01-30 2022-12-31 13F PFIZER COM 717081103 51,776 4,921 10.50 2,653 29.30 0.2599
2022-10-14 2022-09-30 13F PFIZER COM 717081103 46,855 -387 -0.82 2,051 -17.20 0.2344
2022-07-13 2022-06-30 13F PFIZER COM 717081103 47,242 2,102 4.66 2,477 5.99 0.2802
2022-04-19 2022-03-31 13F PFIZER COM 717081103 45,140 -235 -0.52 2,337 -12.77 0.2333
2022-01-21 2021-12-31 13F PFIZER COM 717081103 45,375 4,579 11.22 2,679 52.65 0.2638
2021-11-05 2021-09-30 13F PFIZER COM 717081103 40,796 -1,937 -4.53 1,755 4.90 0.1941
2021-07-28 2021-06-30 13F PFIZER COM 717081103 42,733 2,050 5.04 1,673 13.50 0.1913
2021-04-27 2021-03-31 13F PFIZER COM 717081103 40,683 14,023 52.60 1,474 50.25 0.1889
2021-01-26 2020-12-31 13F PFIZER COM 717081103 26,660 3,914 17.21 981 18.34 0.1661
2020-10-13 2020-09-30 13F PFIZER COM 717081103 22,746 474 2.13 829 9.95 0.1592
2020-07-16 2020-06-30 13F PFIZER COM 717081103 22,272 -2,061 -8.47 754 -14.12 0.1699
2020-04-29 2020-03-31 13F PFIZER COM 717081103 24,333 2,151 9.70 878 1.39 0.2363
2020-01-14 2019-12-31 13F PFIZER COM 717081103 22,182 451 2.08 866 11.60 0.2125
2019-10-15 2019-09-30 13F PFIZER COM 717081103 21,731 -32 -0.15 776 -17.18 0.2141
2019-08-05 2019-06-30 13F PFIZER COM 717081103 21,763 2,705 14.19 937 21.06 0.2545
2019-05-08 2019-03-31 13F PFIZER COM 717081103 19,058 11,691 158.69 774 151.30 0.2358
2019-02-19 2018-12-31 13F/A-1 PFIZER COM 717081103 7,367 736 11.10 308 5.48 0.0966
2019-01-18 2018-12-31 13F PFIZER COM 717081103 9,321 2,690 404 0.1457
2018-10-25 2018-09-30 13F PFIZER COM 717081103 6,631 -165 -2.43 292 18.22 0.2267
2018-07-19 2018-06-30 13F PFIZER COM 717081103 6,796 300 4.62 247 6.93 0.2180
2018-04-06 2018-03-31 13F PFIZER COM 717081103 6,496 6,496 231 0.2189
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2021-07-28 2021-06-30 13F PFIZER COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-04-27 2021-03-31 13F PFIZER COM Call 10,000 0.00 1 -75.00 n/a n/a n/a
2021-01-26 2020-12-31 13F PFIZER COM Call 10,000 4 n/a n/a n/a
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.