Pfizer Inc.
US ˙ NYSE ˙ US7170811035

SecurityPFE / Pfizer Inc.
InstitutionLegacy Advisors, LLC
Latest Disclosed Ownership26,878 shares
Latest Disclosed Value $ 754,743
Legacy Advisors, LLC ownership in PFE / Pfizer Inc.

On May 5, 2026 - Legacy Advisors, LLC filed a 13F-HR form disclosing ownership of 26,878 shares of Pfizer Inc. (US:PFE) valued at $754,734 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 24,451 shares of Pfizer Inc.. This represents a change in shares of 9.93% during the quarter. The current value of the position is $681,089 USD.

Legacy Advisors, LLC has a history of taking positions in derivatives of the underlying security (PFE) in the form of stock options.

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 26,878 2,427 9.93 755 24.01 0.0890
2026-01-27 2025-12-31 13F PFIZER COM 717081103 24,451 -2,322 -8.67 609 -10.85 0.0654
2025-11-13 2025-09-30 13F PFIZER COM 717081103 26,773 26,773 682 0.0842
2025-08-07 2025-06-30 13F PFIZER COM 717081103 0 -64,203 -100.00 0 -100.00
2025-04-23 2025-03-31 13F PFIZER COM 717081103 64,203 4,243 7.08 1,627 2.26 0.1674
2025-02-14 2024-12-31 13F PFIZER COM 717081103 59,960 3,406 6.02 1,591 -2.81 0.1544
2024-11-13 2024-09-30 13F PFIZER COM 717081103 56,554 5,071 9.85 1,637 13.61 0.1772
2024-07-30 2024-06-30 13F PFIZER COM 717081103 51,483 4,544 9.68 1,440 10.60 0.1751
2024-04-30 2024-03-31 13F PFIZER COM 717081103 46,939 -55,341 -54.11 1,303 -55.77 0.1646
2024-02-12 2023-12-31 13F PFIZER COM 717081103 102,280 573 0.56 2,945 -12.72 0.3793
2023-11-14 2023-09-30 13F PFIZER COM 717081103 101,707 11,589 12.86 3,374 2.06 0.5435
2023-07-20 2023-06-30 13F PFIZER COM 717081103 90,118 25,775 40.06 3,306 25.90 0.4906
2023-05-01 2023-03-31 13F PFIZER COM 717081103 64,343 10,024 18.45 2,625 -5.68 0.4841
2023-02-01 2022-12-31 13F PFIZER Common Stock 717081103 54,319 11,566 27.05 2,783 48.74 0.5093
2022-11-09 2022-09-30 13F PFIZER COM 717081103 42,753 2,754 6.89 1,871 -10.78 0.4132
2022-07-25 2022-06-30 13F PFIZER COM 717081103 39,999 8,520 27.07 2,097 28.65 0.4409
2022-05-11 2022-03-31 13F PFIZER COM 717081103 31,479 20,620 189.89 1,630 154.29 0.3165
2022-02-14 2021-12-31 13F PFIZER COM 717081103 10,859 -987 -8.33 641 25.69 0.2352
2021-10-13 2021-09-30 13F PFIZER COM 717081103 11,846 2,750 30.23 510 43.26 0.2039
2021-07-13 2021-06-30 13F PFIZER COM 717081103 9,096 64 0.71 356 8.87 0.1445
2021-04-12 2021-03-31 13F PFIZER COM 717081103 9,032 725 8.73 327 6.86 0.1444
2021-01-15 2020-12-31 13F PFIZER COM 717081103 8,307 -774 -8.52 306 -8.11 0.1739
2020-10-08 2020-09-30 13F PFIZER COM 717081103 9,081 517 6.04 333 18.93 0.2199
2020-07-09 2020-06-30 13F PFIZER COM 717081103 8,564 -3,777 -30.61 280 -30.52 0.2223
2020-04-15 2020-03-31 13F PFIZER COM 717081103 12,341 -704 -5.40 403 -21.14 0.4033
2020-01-21 2019-12-31 13F PFIZER COM 717081103 13,045 323 2.54 511 11.82 0.3243
2019-10-10 2019-09-30 13F PFIZER INC COM COM 717081103 12,722 -120 -0.93 457 -17.81 0.3418
2019-07-15 2019-06-30 13F PFIZER INC COM COM 717081103 12,842 -1,232 -8.75 556 -7.02 0.3759
2019-04-12 2019-03-31 13F/A-1 PFIZER INC COM COM 717081103 14,074 1,047 8.04 598 5.10 0.4052
2019-04-08 2019-03-31 13F PFIZER INC COM COM 717081103 14,074 1,047 598
2019-01-14 2018-12-31 13F PFIZER INC COM COM 717081103 13,027 -988 -7.05 569 -7.93 0.4316
2018-10-18 2018-09-30 13F PFIZER INC COM COM 717081103 14,015 5,713 68.81 618 105.32 0.3043
2018-07-19 2018-06-30 13F PFIZER INC COM COM 717081103 8,302 1,924 30.17 301 29.74 0.2248
2018-04-17 2018-03-31 13F PFIZER INC COM COM 717081103 6,378 2,253 54.62 232 55.70 0.1713
2018-01-26 2017-12-31 13F PFIZER INC COM COM 717081103 4,125 -174 -4.05 149 -2.61 0.1452
2017-11-03 2017-09-30 13F/A-1 Pfizer COM 717081103 4,299 -609 -12.41 153 -6.71 0.1704
2017-11-01 2017-09-30 13F Pfizer COM 717081103 4,908 0 164
2017-11-01 2017-06-30 13F Pfizer COM 717081103 4,908 1,508 44.35 164 41.38 0.2093
2017-11-02 2017-03-31 13F Pfizer COM 717081103 3,400 0 0.00 116 5.45 0.1567
2017-11-03 2016-12-31 13F Pfizer COM 717081103 3,400 3,400 110 0.1503
Disclosed Put 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
(%)
2023-07-20 2023-06-30 13F PFIZER COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-01 2023-03-31 13F PFIZER COM Put 5,000 204 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.