Pfizer Inc.
US ˙ NYSE ˙ US7170811035

SecurityPFE / Pfizer Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership2,374,689 shares
Latest Disclosed Value $ 66,691,031
Advisor Group Holdings, Inc. ownership in PFE / Pfizer Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 2,374,689 shares of Pfizer Inc. (US:PFE) valued at $66,681,267 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,047,160 shares of Pfizer Inc.. This represents a change in shares of 16.00% during the quarter. The current value of the position is $61,836,902 USD.

Advisor Group Holdings, Inc. 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 11,500 of underlying shares valued at $322,920 USD and put 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)
2026-05-15 2026-03-31 13F PFIZER COM 717081103 2,374,689 327,529 16.00 66,691 30.81 0.0568
2026-02-17 2025-12-31 13F PFIZER COM 717081103 2,047,160 -417,400 -16.94 50,986 -17.05 0.0745
2025-11-14 2025-09-30 13F PFIZER COM 717081103 2,464,560 432,720 21.30 61,465 24.21 0.0860
2025-09-04 2025-06-30 13F/A-1 FIZER COM 717081103 2,031,840 367,973 22.12 49,485 17.33 0.0881
2025-08-13 2025-06-30 13F FIZER COM 717081103 1,751,171 87,304 45,576 0.0527
2025-05-12 2025-03-31 13F PFIZER COM 717081103 1,663,867 -31,546 -1.86 42,175 -5.66 0.0940
2025-06-06 2024-12-31 13F/A-1 PFIZER COM 717081103 1,695,413 42,246 2.56 44,705 -6.58 0.1003
2025-02-07 2024-12-31 13F PFIZER COM 717081103 1,503,559 -149,608 42,202 0.1077
2024-11-13 2024-09-30 13F PFIZER COM 717081103 1,653,167 -147,767 -8.21 47,854 -5.06 0.1079
2024-08-13 2024-06-30 13F PFIZER COM 717081103 1,800,934 -143,217 -7.37 50,403 -6.59 0.1191
2024-05-10 2024-03-31 13F PFIZER COM 717081103 1,944,151 -673,313 -25.72 53,958 -28.42 0.1205
2024-02-12 2023-12-31 13F PFIZER COM 717081103 2,617,464 -1,069,212 -29.00 75,382 -38.37 0.1319
2023-11-13 2023-09-30 13F PFIZER COM 717081103 3,686,676 1,120,858 43.68 122,306 30.02 0.1807
2023-08-21 2023-06-30 13F/A-1 PFIZER COM 717081103 2,565,818 59,137 2.36 94,066 -8.10 0.1689
2023-08-10 2023-06-30 13F PFIZER COM 717081103 3,057,916 551,235 93,574 0.0254
2023-05-12 2023-03-31 13F PFIZER COM 717081103 2,506,681 58,688 2.40 102,359 -18.41 0.1926
2023-02-10 2022-12-31 13F PFIZER COM 717081103 2,447,993 190,590 8.44 125,456 26.98 0.2541
2022-11-14 2022-09-30 13F PFIZER COM 717081103 2,257,403 20,834 0.93 98,797 -15.75 0.2258
2022-08-10 2022-06-30 13F PFIZER COM 717081103 2,236,569 78,423 3.63 117,269 9.12 0.2586
2022-05-04 2022-03-31 13F PFIZER COM 717081103 2,158,146 -81,683 -3.65 107,471 -18.63 0.2086
2022-02-03 2021-12-31 13F PFIZER COM 717081103 2,239,829 10,519 0.47 132,069 37.74 0.2500
2021-11-05 2021-09-30 13F PFIZER COM 717081103 2,229,310 138,644 6.63 95,886 17.04 0.1998
2021-08-02 2021-06-30 13F PFIZER COM 717081103 2,090,666 88,276 4.41 81,925 12.91 0.1773
2021-05-13 2021-03-31 13F PFIZER COM 717081103 2,002,390 72,036 3.73 72,561 2.11 0.1746
2021-02-10 2020-12-31 13F PFIZER COM 717081103 1,930,354 -12,004 -0.62 71,059 0.14 0.1898
2020-11-12 2020-09-30 13F PFIZER COM 717081103 1,942,358 167,742 9.45 70,958 22.26 0.2123
2020-08-14 2020-06-30 13F PFIZER COM 717081103 1,774,616 -1,564,570 -46.85 58,038 10.90 0.1948
2020-05-18 2020-03-31 13F PFIZER COM 717081103 3,339,186 3,339,186 52,332 0.2142
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
(%)
2026-05-15 2026-03-31 13F PFIZER CALL Call 11,500 32,757.14 323 n/a n/a n/a
2026-02-17 2025-12-31 13F PFIZER CALL Call 35 0.00 0 -100.00 n/a n/a n/a
2025-11-14 2025-09-30 13F PFIZER CALL Call 35 0.00 2 0.00 n/a n/a n/a
2025-09-04 2025-06-30 13F/A PFIZER CALL Call 35 2 n/a n/a n/a
2021-11-05 2021-09-30 13F PFIZER INC CALL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-08-02 2021-06-30 13F PFIZER INC CALL COM Call 20 3 n/a n/a n/a
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
(%)
2023-05-12 2023-03-31 13F PFIZER INC PUT COM Put 0 -100.00 0 n/a n/a n/a
2023-02-10 2022-12-31 13F PFIZER INC PUT COM Put 35 -41.67 0 -100.00 n/a n/a n/a
2022-11-14 2022-09-30 13F PFIZER INC PUT COM Put 60 -57.14 6 200.00 n/a n/a n/a
2022-08-10 2022-06-30 13F PFIZER INC PUT COM Put 140 -39.13 2 -60.00 n/a n/a n/a
2022-05-04 2022-03-31 13F PFIZER INC PUT COM Put 230 5 n/a n/a n/a
2020-11-12 2020-09-30 13F PFIZER INC PUT COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-08-14 2020-06-30 13F PFIZER INC PUT COM Put 255 2,450.00 39 3,800.00 n/a n/a n/a
2020-05-18 2020-03-31 13F PFIZER INC PUT COM Put 10 1 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.