Pfizer Inc.
CL ˙ SNSE ˙ US7170811035
SecurityCL:PFE / Pfizer Inc.
InstitutionSalzhauer Michael
Latest Disclosed Ownership7,135 shares
Latest Disclosed Value $ 200,351
Salzhauer Michael ownership in PFE / Pfizer Inc.

On May 5, 2026 - Salzhauer Michael filed a 13F-HR form disclosing ownership of 7,135 shares of Pfizer Inc. (CL:PFE) valued at $200,351 USD as of March 31, 2026. The entity filed a previous 13F-HR on April 26, 2024 disclosing 0 shares of Pfizer Inc..

Salzhauer Michael 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.

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)
2026-05-05 2026-03-31 13F PFIZER COM 717081103 7,135 7,135 200 0.0944
2024-04-26 2024-03-31 13F PFIZER COM 717081103 0 -1,000 -100.00 0 -100.00
2024-02-14 2023-12-31 13F PFIZER COM 717081103 1,000 1,000 29 0.0245
2022-02-04 2021-12-31 13F PFIZER COM 717081103 0 -10 -100.00 0 0.0000
2021-11-12 2021-09-30 13F PFIZER COM 717081103 10 -4,330 -99.77 0 -100.00
2021-08-06 2021-06-30 13F PFIZER COM 717081103 4,340 0 0.00 170 8.28 0.0747
2021-05-12 2021-03-31 13F PFIZER COM 717081103 4,340 0 0.00 157 -1.26 0.0806
2021-01-29 2020-12-31 13F PFIZER COM 717081103 4,340 0 0.00 159 0.00 0.1132
2020-11-09 2020-09-30 13F PFIZER COM 717081103 4,340 4,340 159 0.1777
2020-08-05 2020-06-30 13F PFIZER COM 717081103 0 -4,330 -100.00 0 -100.00
2020-05-05 2020-03-31 13F PFIZER COM 717081103 4,330 -1,200 -21.70 141 -35.02 0.2399
2020-05-07 2019-12-31 13F/A-1 PFIZER COM 717081103 5,530 0 0.00 217 9.05 0.0991
2020-02-10 2019-12-31 13F PFIZER COM 717081103 5,530 0 217 103,676.4530
2019-11-06 2019-09-30 13F PFIZER COM 717081103 5,530 0 0.00 199 -17.08 0.1037
2019-08-20 2019-06-30 13F/A-1 PFIZER COM 717081103 5,530 0 0.00 240 2.13 0.1100
2019-08-06 2019-06-30 13F PFIZER COM 717081103 5,530 0 240
2019-05-10 2019-03-31 13F PFIZER COM 717081103 5,530 0 0.00 235 -2.49 0.1153
2019-02-13 2018-12-31 13F PFIZER COM 717081103 5,530 -458 -7.65 241 -8.71 0.1327
2018-11-01 2018-09-30 13F PFIZER COM 717081103 5,988 0 0.00 264 21.66 0.1008
2018-08-07 2018-06-30 13F PFIZER COM 717081103 5,988 0 0.00 217 1.88 0.0799
2018-05-03 2018-03-31 13F PFIZER COM 717081103 5,988 0 0.00 213 -1.84 0.0790
2018-02-09 2017-12-31 13F PFIZER COM 717081103 5,988 0 0.00 217 1.40 0.0852
2017-11-13 2017-09-30 13F PFIZER COM 717081103 5,988 0 0.00 214 6.47 0.0918
2017-07-18 2017-06-30 13F PFIZER COM 717081103 5,988 0 0.00 201 -1.95 0.0925
2017-05-15 2017-03-31 13F PFIZER COM 717081103 5,988 0 0.00 205 5.67 0.0980
2017-02-01 2016-12-31 13F PFIZER COM 717081103 5,988 0 0.00 194 -4.43 0.0956
2016-11-02 2016-09-30 13F PFIZER COM 717081103 5,988 -12 -0.20 203 -3.79 0.1457
2016-08-08 2016-06-30 13F PFIZER COM 717081103 6,000 0 0.00 211 18.54 0.1705
2016-04-26 2016-03-31 13F PFIZER COM 717081103 6,000 0 0.00 178 -8.25 0.1499
2016-01-28 2015-12-31 13F PFIZER COM 717081103 6,000 6,000 0.00 194 0.1437
2015-11-02 2015-09-30 13F PFIZER COM 717081103 0 -6,000 -100.00 0 -100.00
2015-07-17 2015-06-30 13F PFIZER COM 717081103 6,000 0 0.00 201 -3.83 0.1526
2015-04-28 2015-03-31 13F PFIZER COM 717081103 6,000 6,000 209 0.1907
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
(%)
2024-04-26 2024-03-31 13F PFIZER COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-14 2023-12-31 13F PFIZER COM Call 9,400 21 n/a n/a n/a
2022-02-04 2021-12-31 13F PFIZER COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-12 2021-09-30 13F PFIZER COM Call 10,800 5.88 79 6.76 n/a n/a n/a
2021-08-06 2021-06-30 13F PFIZER COM Call 10,200 -32.00 74 32.14 n/a n/a n/a
2021-05-12 2021-03-31 13F PFIZER COM Call 15,000 50.00 56 12.00 n/a n/a n/a
2021-01-29 2020-12-31 13F PFIZER COM Call 10,000 25.00 50 284.62 n/a n/a n/a
2020-11-09 2020-09-30 13F PFIZER COM Call 8,000 13 n/a n/a n/a
2020-08-05 2020-06-30 13F PFIZER COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-05-05 2020-03-31 13F PFIZER COM Call 8,000 0.00 7 -73.08 n/a n/a n/a
2020-05-07 2019-12-31 13F/A PFIZER COM Call 8,000 0.00 26 52.94 n/a n/a n/a
2020-02-10 2019-12-31 13F PFIZER COM Call 8,000 26 n/a n/a n/a
2019-11-06 2019-09-30 13F PFIZER COM Call 8,000 50.94 17 -65.31 n/a n/a n/a
2019-08-20 2019-06-30 13F/A PFIZER COM Call 5,300 0.00 49 -2.00 n/a n/a n/a
2019-08-06 2019-06-30 13F PFIZER COM Call 5,300 49 n/a n/a n/a
2019-05-10 2019-03-31 13F PFIZER COM Call 5,300 0.00 50 -13.79 n/a n/a n/a
2019-02-13 2018-12-31 13F PFIZER COM Call 5,300 -47.00 58 -48.67 n/a n/a n/a
2018-11-01 2018-09-30 13F PFIZER COM Call 10,000 0.00 113 135.42 n/a n/a n/a
2018-08-07 2018-06-30 13F PFIZER COM Call 10,000 0.00 48 9.09 n/a n/a n/a
2018-05-03 2018-03-31 13F PFIZER COM Call 10,000 0.00 44 -8.33 n/a n/a n/a
2018-02-09 2017-12-31 13F PFIZER COM Call 10,000 0.00 48 9.09 n/a n/a n/a
2017-11-13 2017-09-30 13F PFIZER COM Call 10,000 0.00 44 46.67 n/a n/a n/a
2017-07-18 2017-06-30 13F PFIZER COM Call 10,000 0.00 30 -16.67 n/a n/a n/a
2017-05-15 2017-03-31 13F PFIZER COM Call 10,000 0.00 36 16.13 n/a n/a n/a
2017-02-01 2016-12-31 13F PFIZER COM Call 10,000 0.00 31 -24.39 n/a n/a n/a
2016-11-02 2016-09-30 13F PFIZER COM Call 10,000 0.00 41 17.14 n/a n/a n/a
2016-08-08 2016-06-30 13F PFIZER COM Call 10,000 0.00 35 34.62 n/a n/a n/a
2016-04-26 2016-03-31 13F PFIZER COM Call 10,000 0.00 26 -7.14 n/a n/a n/a
2016-01-28 2015-12-31 13F PFIZER COM Call 10,000 0.00 28 -9.68 n/a n/a n/a
2015-11-02 2015-09-30 13F PFIZER COM Call 10,000 0.00 31 -18.42 n/a n/a n/a
2015-07-17 2015-06-30 13F PFIZER COM Call 10,000 0.00 38 -13.64 n/a n/a n/a
2015-04-28 2015-03-31 13F PFIZER COM Call 10,000 0.00 44 57.14 n/a n/a n/a
2015-02-13 2014-12-31 13F PFIZER COM Call 10,000 28 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.