Amazon.com, Inc.
MX ˙ BMV ˙ US0231351067
SecurityMX:AMZN / Amazon.com, Inc.
InstitutionCi Investments Inc.
Latest Disclosed Ownership4,555,051 shares
Latest Disclosed Value $ 948,680,472
Ci Investments Inc. ownership in AMZN / Amazon.com, Inc.

On May 13, 2026 - Ci Investments Inc. filed a 13F-HR form disclosing ownership of 4,555,051 shares of Amazon.com, Inc. (MX:AMZN) valued at $948,680,472 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 4,687,926 shares of Amazon.com, Inc.. This represents a change in shares of -2.83% during the quarter.

Ci Investments Inc. has a history of taking positions in derivatives of the underlying security (AMZN) 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.

MX:AMZN / Amazon.com, 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)
2026-05-13 2026-03-31 13F AMAZON COM COM 023135106 4,555,051 -132,875 -2.83 948,680 -12.33 3.2342
2026-02-12 2025-12-31 13F AMAZON COM COM 023135106 4,687,926 182,099 4.04 1,082,068 109,310.21 4.7404
2025-11-12 2025-09-30 13F AMAZON COM COM 023135106 4,505,827 21,657 0.48 989 0.61 3.5953
2025-08-12 2025-06-30 13F AMAZON COM COM 023135106 4,484,170 -165,484 -3.56 984 11.20 3.6906
2025-05-13 2025-03-31 13F AMAZON COM COM 023135106 4,649,654 -208,895 -4.30 885 -17.00 3.7273
2025-02-12 2024-12-31 13F AMAZON COM COM 023135106 4,858,549 -303,341 -5.88 1,066 10.82 4.0150
2024-11-12 2024-09-30 13F AMAZON COM COM 023135106 5,161,890 -216,278 -4.02 962 -7.51 3.6605
2024-08-12 2024-06-30 13F AMAZON COM COM 023135106 5,378,168 48,236 0.91 1,039 8.12 4.0928
2024-05-13 2024-03-31 13F AMAZON COM COM 023135106 5,329,932 -55,575 -1.03 961 17.48 3.8161
2024-02-12 2023-12-31 13F AMAZON COM COM 023135106 5,385,507 -307,162 -5.40 818 13.14 4.2311
2023-11-13 2023-09-30 13F AMAZON COM COM 023135106 5,692,669 24,798 0.44 724 -2.03 4.0373
2023-08-11 2023-06-30 13F AMAZON COM COM 023135106 5,667,871 -307,944 -5.15 739 19.61 3.7276
2023-05-12 2023-03-31 13F AMAZON COM COM 023135106 5,975,815 96,797 1.65 617 25.15 3.1055
2023-02-10 2022-12-31 13F AMAZON COM COM 023135106 5,879,018 2,994 0.05 494 -99.93 2.4974
2022-11-14 2022-09-30 13F AMAZON COM COM 023135106 5,876,024 -324,106 -5.23 663,990 0.83 3.4451
2022-08-12 2022-06-30 13F AMAZON COM COM 023135106 6,200,130 5,920,138 2,114.40 658,516 -27.85 3.0714
2022-05-12 2022-03-31 13F AMAZON COM COM 023135106 279,992 -6,603 -2.30 912,760 -4.48 3.3578
2022-02-11 2021-12-31 13F AMAZON COM COM 023135106 286,595 27,002 10.40 955,605 12.06 3.2977
2021-11-12 2021-09-30 13F AMAZON COM COM 023135106 259,593 2,550 0.99 852,774 -3.56 3.1751
2021-08-13 2021-06-30 13F AMAZON COM COM 023135106 257,043 21,591 9.17 884,269 21.38 3.2415
2021-05-13 2021-03-31 13F AMAZON COM COM 023135106 235,452 19,291 8.92 728,507 3.48 3.0724
2021-02-09 2020-12-31 13F AMAZON COM COM 023135106 216,161 25,949 13.64 704,022 17.55 3.1020
2020-11-09 2020-09-30 13F AMAZON COM COM 023135106 190,212 17,712 10.27 598,926 25.85 2.9762
2020-08-07 2020-06-30 13F AMAZON COM COM 023135106 172,500 13,014 8.16 475,896 53.04 2.5364
2020-08-07 2020-03-31 13F AMAZON COM COM 023135106 159,486 78,647 97.29 310,953 108.17 1.8863
2020-02-11 2019-12-31 13F AMAZON COM COM 023135106 80,839 -2,852 -3.41 149,378 2.82 0.7586
2019-11-08 2019-09-30 13F AMAZON COM COM 023135106 83,691 4,999 6.35 145,280 -2.51 0.7503
2019-08-12 2019-06-30 13F AMAZON COM COM 023135106 78,692 -3,575 -4.35 149,014 1.72 0.8292
2019-05-15 2019-03-31 13F AMAZON COM COM 023135106 82,267 25,207 44.18 146,497 70.94 0.8215
2019-02-15 2018-12-31 13F AMAZON COM COM 023135106 57,060 6,125 12.03 85,702 -16.00 0.5532
2018-11-09 2018-09-30 13F AMAZON COM COM 023135106 50,935 -17,600 -25.68 102,023 -12.42 0.7640
2018-08-14 2018-06-30 13F AMAZON COM COM 023135106 68,535 -8,800 -11.38 116,496 4.08 0.9152
2018-05-11 2018-03-31 13F AMAZON COM COM 023135106 77,335 -100 -0.13 111,930 23.60 1.2886
2018-05-11 2017-12-31 13F/A-1 AMAZON COM COM 023135106 77,435 20,440 35.86 90,558 65.28 0.9285
2018-02-02 2017-12-31 13F AMAZON COM COM 023135106 77,435 20,440 90,558
2018-05-11 2017-09-30 13F/A-1 AMAZON COM COM 023135106 56,995 400 0.71 54,792 0.01 0.5348
2017-11-06 2017-09-30 13F AMAZON COM COM 023135106 56,995 400 54,792
2017-08-10 2017-06-30 13F AMAZON COM COM 023135106 56,595 3,600 6.79 54,784 16.61 0.5933
2017-05-05 2017-03-31 13F AMAZON COM COM 023135106 52,995 300 0.57 46,982 18.90 0.5339
2017-02-06 2016-12-31 13F AMAZON COM COM 023135106 52,695 -4,715 -8.21 39,514 -17.80 0.4325
2016-11-04 2016-09-30 13F AMAZON COM COM 023135106 57,410 3,500 6.49 48,070 24.60 0.5249
2016-08-24 2016-06-30 13F/A-2 AMAZON COM COM 023135106 53,910 -27,390 -33.69 38,579 -20.07 6.5856
2016-05-06 2016-03-31 13F AMAZON COM COM 023135106 81,300 81,300 0.00 48,263 0.6156
2016-02-05 2015-12-31 13F AMAZON COM COM 023135106 0 0 0 0.0000
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
(%)
2024-05-13 2024-03-31 13F AMAZON COM OPTIONS Call 0 -100.00 0 n/a n/a n/a
2024-02-12 2023-12-31 13F AMAZON COM OPTIONS Call 2,240 0 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
(%)
2023-11-13 2023-09-30 13F AMAZON COM OPTIONS Put 0 -100.00 0 n/a n/a n/a
2023-08-11 2023-06-30 13F AMAZON COM OPTIONS Put 35 0.00 0 n/a n/a n/a
2023-05-12 2023-03-31 13F AMAZON COM OPTIONS Put 35 0 n/a n/a n/a
2021-11-12 2021-09-30 13F AMAZON COM OPTIONS Put 0 -100.00 0 n/a n/a n/a
2021-08-13 2021-06-30 13F AMAZON COM OPTIONS Put 4 0 n/a n/a n/a
2019-08-12 2019-06-30 13F AMAZON COM OPTIONS Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-05-15 2019-03-31 13F AMAZON COM OPTIONS Put 80 91 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.