Pfizer Inc.
CL ˙ SNSE ˙ US7170811035
SecurityCL:PFE / Pfizer Inc.
InstitutionKovack Advisors, Inc.
Latest Disclosed Ownership130,915 shares
Latest Disclosed Value $ 3,711,209
Kovack Advisors, Inc. ownership in PFE / Pfizer Inc.

On May 12, 2026 - Kovack Advisors, Inc. filed a 13F-HR form disclosing ownership of 130,915 shares of Pfizer Inc. (CL:PFE) valued at $3,711,209 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 17, 2026 disclosing 143,951 shares of Pfizer Inc.. This represents a change in shares of -9.06% during the quarter.

Kovack Advisors, 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 0 of underlying shares valued at $0 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.

CL: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)
2026-05-12 2026-03-31 13F PFIZER COM 717081103 130,915 -13,036 -9.06 3,711 3.54 0.1980
2026-02-17 2025-12-31 13F/A-1 PFIZER COM 717081103 143,951 64,044 80.15 3,584 76.03 0.1666
2026-02-12 2025-12-31 13F PFIZER COM 717081103 143,951 64,044 2,022
2025-11-10 2025-09-30 13F PFIZER COM 717081103 79,907 -3,801 -4.54 2,036 0.34 0.1917
2025-08-04 2025-06-30 13F PFIZER COM 717081103 83,708 -2,253 -2.62 2,029 -6.84 0.1989
2025-05-06 2025-03-31 13F PFIZER COM 717081103 85,961 -20,962 -19.60 2,178 -23.20 0.2306
2025-02-05 2024-12-31 13F PFIZER COM 717081103 106,923 -6,187 -5.47 2,837 -13.35 0.2784
2024-11-05 2024-09-30 13F PFIZER COM 717081103 113,110 -7,321 -6.08 3,273 -2.85 0.3467
2024-08-05 2024-06-30 13F PFIZER COM 717081103 120,431 -11,808 -8.93 3,370 -8.18 0.3708
2024-04-19 2024-03-31 13F PFIZER COM 717081103 132,239 35,854 37.20 3,670 32.26 0.4443
2024-02-02 2023-12-31 13F PFIZER COM 717081103 96,385 -8,945 -8.49 2,775 -20.58 0.3296
2023-10-19 2023-09-30 13F PFIZER COM 717081103 105,330 4,963 4.94 3,494 -5.11 0.4873
2023-07-21 2023-06-30 13F PFIZER COM 717081103 100,367 6,523 6.95 3,681 -3.84 0.4717
2023-04-21 2023-03-31 13F PFIZER COM 717081103 93,844 -2,900 -3.00 3,829 -22.78 0.5219
2023-02-22 2022-12-31 13F PFIZER ORD ORD 717081103 96,744 -539 -0.55 4,957 16.44 0.7246
2022-11-14 2022-09-30 13F PFIZER ORD ORD 717081103 97,283 -1,345 -1.36 4,257 -17.68 0.6252
2022-08-10 2022-06-30 13F PFIZER ORD ORD 717081103 98,628 -12,042 -10.88 5,171 -9.74 0.6824
2022-05-16 2022-03-31 13F PFIZER ORD ORD 717081103 110,670 -4,635 -4.02 5,729 -15.86 0.5885
2022-01-18 2021-12-31 13F PFIZER ORD ORD 717081103 115,305 -13,010 -10.14 6,809 23.37 0.6578
2021-11-03 2021-09-30 13F PFIZER ORD ORD 717081103 128,315 13,182 11.45 5,519 22.40 0.5998
2021-07-29 2021-06-30 13F PFIZER ORD ORD 717081103 115,133 -2,252 -1.92 4,509 6.02 0.5133
2021-05-04 2021-03-31 13F PFIZER ORD ORD 717081103 117,385 15,303 14.99 4,253 13.17 0.5527
2021-01-14 2020-12-31 13F PFIZER ORD ORD 717081103 102,082 9,182 9.88 3,758 10.24 0.5409
2020-11-02 2020-09-30 13F PFIZER ORD ORD 717081103 92,900 28,298 43.80 3,409 61.41 0.6066
2020-07-31 2020-06-30 13F PFIZER ORD ORD 717081103 64,602 992 1.56 2,112 1.73 0.4112
2020-04-30 2020-03-31 13F PFIZER ORD ORD 717081103 63,610 -8,152 -11.36 2,076 -26.17 0.4795
2020-01-29 2019-12-31 13F PFIZER ORD ORD 717081103 71,762 2,090 3.00 2,812 12.35 0.5027
2019-10-31 2019-09-30 13F PFIZER ORD ORD 717081103 69,672 13,378 23.76 2,503 2.62 0.5136
2019-08-14 2019-06-30 13F PFIZER INC COM COM 717081103 56,294 -2,175 -3.72 2,439 -1.77 0.5575
2019-05-03 2019-03-31 13F PFIZER INC COM COM 717081103 58,469 557 0.96 2,483 -1.78 0.6191
2019-02-06 2018-12-31 13F PFIZER INC COM COM 717081103 57,912 1,247 2.20 2,528 1.24 0.7392
2018-10-09 2018-09-30 13F PFIZER INC COM COM 717081103 56,665 5,714 11.21 2,497 35.05 0.6439
2018-08-01 2018-06-30 13F PFIZER INC COM COM 717081103 50,951 -1,533 -2.92 1,849 -0.75 0.5165
2018-05-15 2018-03-31 13F PFIZER INC COM COM 717081103 52,484 -3,643 -6.49 1,863 -8.36 0.4674
2018-05-15 2017-12-31 13F/A-1 PFIZER COM 717081103 56,127 28,759 105.08 2,033 108.09 0.5138
2018-02-01 2017-12-31 13F PFIZER COM 717081103 57,340 2,077
2018-08-02 2017-09-30 13F PFIZER INC COM COM 717081103 27,368 10,893 66.12 977 76.67 0.3241
2018-08-30 2017-06-30 13F PFIZER INC COM COM 717081103 16,475 3,325 25.29 553 22.89 0.1745
2018-09-05 2017-03-31 13F PFIZER INC COM COM 717081103 13,150 4,318 48.89 450 56.79 0.1752
2018-09-10 2016-12-31 13F PFIZER INC COM COM 717081103 8,832 -2,077 -19.04 287 -22.43 0.1366
2018-09-25 2016-09-30 13F PFIZER INC COM COM 717081103 10,909 1,899 21.08 370 16.72 0.1801
2018-10-01 2016-06-30 13F PFIZER INC COM COM 717081103 9,010 -339 -3.63 317 14.44 0.1682
2018-10-12 2016-03-31 13F PFIZER INC COM COM 717081103 9,349 -196 -2.05 277 -10.06 0.1731
2018-10-18 2015-12-31 13F PFIZER INC COM COM 717081103 9,545 3,198 50.39 308 44.60 0.2031
2018-11-06 2015-06-30 13F PFIZER INC COM COM 717081103 6,347 6,347 213 0.1506
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
(%)
2023-04-21 2023-03-31 13F PFIZER JUN 16, 2023 CALL 80 ORD Call 0 -100.00 0 n/a n/a n/a
2023-02-22 2022-12-31 13F PFIZER JUN 16, 2023 CALL 80 ORD Call 10 0.00 0 n/a n/a n/a
2022-11-14 2022-09-30 13F PFIZER JUN 16, 2023 CALL 80 ORD Call 10 -23.08 0 n/a n/a n/a
2022-08-10 2022-06-30 13F PFIZER JAN 20, 2023 CALL 70 ORD Call 13 0.00 0 n/a n/a n/a
2022-05-16 2022-03-31 13F PFIZER JUN 16, 2023 CALL 80 ORD Call 13 -72.34 0 -100.00 n/a n/a n/a
2022-01-18 2021-12-31 13F PFIZER FEB 04, 2022 CALL 62 ORD Call 47 20.51 30 328.57 n/a n/a n/a
2021-11-03 2021-09-30 13F PFIZER DEC 17, 2021 CALL 43 ORD Call 39 290.00 7 600.00 n/a n/a n/a
2021-07-29 2021-06-30 13F PFIZER JAN 21, 2022 CALL 40 ORD Call 10 11.11 1 0.00 n/a n/a n/a
2021-05-04 2021-03-31 13F PFIZER JAN 21, 2022 CALL 47 ORD Call 9 -35.71 1 -50.00 n/a n/a n/a
2021-01-14 2020-12-31 13F PFIZER JAN 15, 2021 CALL 38 ORD Call 14 55.56 2 100.00 n/a n/a n/a
2020-11-02 2020-09-30 13F PFIZER JAN 21, 2022 CALL 47 ORD Call 9 1 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
(%)
2021-05-04 2021-03-31 13F PFIZER JAN 15, 2021 PUT 34 ORD Put 0 -100.00 0 n/a n/a n/a
2021-01-14 2020-12-31 13F PFIZER JAN 15, 2021 PUT 34 ORD Put 9 0 n/a n/a n/a
2020-01-29 2019-12-31 13F PFIZER INC PUT AUG00027000 ORD Put 0 -100.00 0 n/a n/a n/a
2019-10-31 2019-09-30 13F PFIZER INC PUT AUG00027000 ORD Put 3 0.00 0 n/a n/a n/a
2019-08-14 2019-06-30 13F PFIZER INC PUT AUG00027000 COM Put 3 0.00 0 n/a n/a n/a
2019-05-03 2019-03-31 13F PFIZER INC PUT AUG00027000 COM Put 3 0.00 0 n/a n/a n/a
2019-02-06 2018-12-31 13F PFIZER INC PUT AUG00027000 COM Put 0 -100.00 0 n/a n/a n/a
2018-10-09 2018-09-30 13F PFIZER INC PUT AUG00027000 COM Put 3 0.00 0 n/a n/a n/a
2018-08-30 2017-06-30 13F PFIZER INC PUT AUG00027000 COM Put 3 0.00 0 n/a n/a n/a
2018-09-05 2017-03-31 13F PFIZER INC PUT AUG00027000 COM Put 3 0.00 0 n/a n/a n/a
2018-09-10 2016-12-31 13F PFIZER INC PUT AUG00027000 COM Put 3 0.00 0 n/a n/a n/a
2018-09-25 2016-09-30 13F PFIZER INC PUT AUG00027000 COM Put 3 0.00 0 n/a n/a n/a
2018-10-01 2016-06-30 13F PFIZER INC PUT AUG00027000 COM Put 3 0.00 0 n/a n/a n/a
2018-10-12 2016-03-31 13F PFIZER INC PUT AUG00027000 COM Put 3 0.00 0 n/a n/a n/a
2018-10-18 2015-12-31 13F PFIZER INC PUT AUG00027000 COM Put 3 0.00 0 n/a n/a n/a
2018-11-06 2015-06-30 13F PFIZER INC PUT AUG00027000 COM Put 3 0 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.