Pfizer Inc.
CL ˙ SNSE ˙ US7170811035
SecurityCL:PFE / Pfizer Inc.
InstitutionCwm, Llc
Latest Disclosed Ownership2,111,686 shares
Latest Disclosed Value $ 59,296,132
Cwm, Llc ownership in PFE / Pfizer Inc.

On May 14, 2026 - Cwm, Llc filed a 13F-HR form disclosing ownership of 2,111,686 shares of Pfizer Inc. (CL:PFE) valued at $59,296,132 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 1,625,379 shares of Pfizer Inc.. This represents a change in shares of 29.92% during the quarter.

Cwm, Llc 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 2,000 of underlying shares valued at $16,352 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)
2026-05-14 2026-03-31 13F PFIZER COM 717081103 2,111,686 486,307 29.92 59,296 148,140.00 0.1558
2026-01-26 2025-12-31 13F PFIZER COM 717081103 1,625,379 12,997 0.81 40 -2.44 0.1097
2025-10-15 2025-09-30 13F PFIZER COM 717081103 1,612,382 123,473 8.29 41 13.89 0.1236
2025-07-25 2025-06-30 13F PFIZER COM 717081103 1,488,909 84,187 5.99 36 2.86 0.1273
2025-05-01 2025-03-31 13F PFIZER COM 717081103 1,404,722 5,059 0.36 36 -5.41 0.1420
2025-02-04 2024-12-31 13F PFIZER COM 717081103 1,399,663 75,735 5.72 37 -2.63 0.1541
2024-10-08 2024-09-30 13F PFIZER COM 717081103 1,323,928 46,221 3.62 38 8.57 0.1648
2024-07-10 2024-06-30 13F PFIZER COM 717081103 1,277,707 71,241 5.90 36 6.06 0.1685
2024-04-05 2024-03-31 13F PFIZER COM 717081103 1,206,466 79,627 7.07 33 3.13 0.1628
2024-02-01 2023-12-31 13F PFIZER COM 717081103 1,126,839 11,167 1.00 32 -13.51 0.1744
2023-10-11 2023-09-30 13F PFIZER COM 717081103 1,115,672 75,994 7.31 37 -2.63 0.2268
2023-08-03 2023-06-30 13F PFIZER COM 717081103 1,039,678 14,416 1.41 38 -7.32 0.2357
2023-05-01 2023-03-31 13F PFIZER COM 717081103 1,025,262 68,290 7.14 42 -16.33 0.2826
2023-02-01 2022-12-31 13F PFIZER COM 717081103 956,972 70,487 7.95 49 -99.87 0.3612
2022-10-27 2022-09-30 13F PFIZER COM 717081103 886,485 36,890 4.34 38,793 -12.91 0.3082
2022-07-28 2022-06-30 13F PFIZER COM 717081103 849,595 29,336 3.58 44,544 4.90 0.3451
2022-04-21 2022-03-31 13F PFIZER COM 717081103 820,259 -1,142 -0.14 42,465 -12.45 0.3012
2022-01-31 2021-12-31 13F PFIZER COM 717081103 821,401 -95,994 -10.46 48,504 35.01 0.3415
2021-09-15 2021-06-30 13F/A-1 PFIZER COM 717081103 917,395 0 0.00 35,925 0.00 0.2863
2021-07-29 2021-06-30 13F PFIZER COM 717081103 917,395 0 35,925 0.2863
2021-09-15 2021-03-31 13F/A-1 PFIZER COM 717081103 917,395 0 0.00 35,925 0.00 0.2863
2021-04-27 2021-03-31 13F PFIZER COM 717081103 894,402 -22,993 32,404 0.2850
2021-09-15 2020-12-31 13F/A-1 PFIZER COM 717081103 917,395 0 0.00 35,925 0.00 0.2863
2021-01-27 2020-12-31 13F PFIZER COM 717081103 1,080,095 162,700 39,758 0.3726
2021-09-15 2020-09-30 13F/A-1 PFIZER COM 717081103 917,395 0 0.00 35,925 0.00 0.2863
2020-10-19 2020-09-30 13F PFIZER COM 717081103 1,093,692 176,297 40,138 0.4462
2021-09-15 2020-06-30 13F/A-1 PFIZER COM 717081103 917,395 0 0.00 35,925 0.00 0.2863
2020-07-22 2020-06-30 13F PFIZER COM 717081103 1,144,014 226,619 37,409 0.4437
2021-09-15 2020-03-31 13F/A-1 PFIZER COM 717081103 917,395 0 0.00 35,925 0.00 0.2863
2020-04-28 2020-03-31 13F PFIZER COM 717081103 1,106,068 188,673 36,102 0.5375
2021-09-14 2019-12-31 13F/A-1 PFIZER COM 717081103 917,395 0 0.00 35,925 0.00 0.2863
2020-01-27 2019-12-31 13F PFIZER COM 717081103 715,921 -201,474 28,050 0.3584
2021-09-14 2019-09-30 13F/A-1 PFIZER COM 717081103 917,395 0 0.00 35,925 0.00 0.2863
2019-10-22 2019-09-30 13F PFIZER COM 717081103 559,232 -358,163 20,093 0.2925
2021-09-14 2019-06-30 13F/A-1 PFIZER COM 717081103 917,395 0 0.00 35,925 0.00 0.2863
2019-07-31 2019-06-30 13F PFIZER COM 717081103 445,087 -472,308 19,281 0.3189
2021-09-02 2019-03-31 13F/A-1 PFIZER COM 717081103 917,395 707,082 336.20 35,925 291.34 0.2863
2019-04-22 2019-03-31 13F PFIZER COM 717081103 304,481 94,168 12,931 0.2594
2019-01-25 2018-12-31 13F PFIZER COM 717081103 210,313 -30,924 -12.82 9,180 -13.65 0.2292
2018-10-29 2018-09-30 13F PFIZER COM 717081103 241,237 47,877 24.76 10,631 51.55 0.2714
2018-07-31 2018-06-30 13F PFIZER COM 717081103 193,360 66,983 53.00 7,015 56.41 0.2308
2018-04-26 2018-03-31 13F PFIZER COM 717081103 126,377 25,938 25.82 4,485 23.28 0.1782
2018-01-16 2017-12-31 13F PFIZER COM 717081103 100,439 15,126 17.73 3,638 19.44 0.1615
2017-10-16 2017-09-30 13F PFIZER COM 717081103 85,313 -7,825 -8.40 3,046 -2.65 0.1440
2017-07-17 2017-06-30 13F PFIZER COM 717081103 93,138 -7,440 -7.40 3,129 -9.07 0.1604
2017-04-17 2017-03-31 13F PFIZER COM 717081103 100,578 -133,740 -57.08 3,441 -54.79 0.1946
2017-01-19 2016-12-31 13F PFIZER COM 717081103 234,318 -54,125 -18.76 7,611 -22.10 0.4665
2016-10-17 2016-09-30 13F PFIZER COM 717081103 288,443 -37,035 -11.38 9,770 -14.75 0.6744
2016-07-21 2016-06-30 13F PFIZER COM 717081103 325,478 -62,847 -16.18 11,460 -0.43 0.8358
2016-04-18 2016-03-31 13F PFIZER COM 717081103 388,325 -52,107 -11.83 11,510 -19.04 1.0107
2016-02-01 2015-12-31 13F PFIZER COM 717081103 440,432 -2,951 -0.67 14,217 2.08 1.3891
2015-10-30 2015-09-30 13F PFIZER COM 717081103 443,383 14,007 3.26 13,927 -3.26 1.4020
2015-07-09 2015-06-30 13F PFIZER COM 717081103 429,376 1,224 0.29 14,397 -3.34 1.3813
2015-04-30 2015-03-31 13F PFIZER COM 717081103 428,152 399,968 1,419.13 14,895 1,596.47 1.5083
2015-02-12 2014-12-31 13F PFIZER COM 717081103 28,184 -84,300 -74.94 878 -73.60 0.1066
2014-11-14 2014-09-30 13F PFIZER COM 717081103 112,484 29,755 35.97 3,326 35.48 0.4829
2014-08-14 2014-06-30 13F PFIZER COM 717081103 82,729 21,074 34.18 2,455 23.99 0.4393
2014-05-16 2014-03-31 13F PFIZER COM 717081103 61,655 17,560 39.82 1,980 46.67 0.2699
2014-02-14 2013-12-31 13F PFIZER COM 717081103 44,095 22,291 102.23 1,350 115.65 0.2106
2013-11-14 2013-09-30 13F PFIZER COM 717081103 21,804 21,804 626 0.1642
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
(%)
2026-05-14 2026-03-31 13F PFIZER COM Call 2,000 16 n/a n/a n/a
2014-05-16 2014-03-31 13F PFIZER CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2014-02-14 2013-12-31 13F PFIZER CALL Call 407 32 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
(%)
2020-04-28 2020-03-31 13F PFIZER COM Put 0 -100.00 0 n/a n/a n/a
2020-01-27 2019-12-31 13F PFIZER COM Put 1,800 0.00 0 -100.00 n/a n/a n/a
2019-10-22 2019-09-30 13F PFIZER COM Put 1,800 0.00 4 300.00 n/a n/a n/a
2019-07-31 2019-06-30 13F PFIZER COM Put 1,800 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.