Amazon.com, Inc.
MX ˙ BMV ˙ US0231351067
SecurityMX:AMZN / Amazon.com, Inc.
InstitutionAtom Investors LP
Latest Disclosed Ownership49,094 shares
Latest Disclosed Value $ 10,224,807
Atom Investors LP reports 225.04% increase in ownership of AMZN / Amazon.com, Inc.

On May 15, 2026 - Atom Investors LP filed a 13F-HR form disclosing ownership of 49,094 shares of Amazon.com, Inc. (MX:AMZN) valued at $10,224,807 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 15,104 shares of Amazon.com, Inc.. This represents a change in shares of 225.04% during the quarter.

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.

Upgrade to unlock premium data and export to Excel .

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 AMAZON COM COM 023135106 49,094 33,990 225.04 10,225 193.29 0.7322
2026-02-17 2025-12-31 13F AMAZON COM COM 023135106 15,104 2,795 22.71 3,486 29.02 0.2768
2025-11-14 2025-09-30 13F AMAZON COM COM 023135106 12,309 0 0.00 2,703 0.07 0.2049
2025-08-14 2025-06-30 13F AMAZON COM COM 023135106 12,309 1,578 14.71 2,700 32.29 0.2393
2025-05-15 2025-03-31 13F AMAZON COM COM 023135106 10,731 0 0.00 2,042 -13.30 0.2512
2025-02-14 2024-12-31 13F AMAZON COM COM 023135106 10,731 -38,439 -78.18 2,354 -74.30 0.2925
2024-11-14 2024-09-30 13F AMAZON COM COM 023135106 49,170 21,751 79.33 9,162 72.91 0.9592
2024-08-14 2024-06-30 13F AMAZON COM COM 023135106 27,419 -1,438 -4.98 5,299 1.79 0.5299
2024-05-15 2024-03-31 13F AMAZON COM COM 023135106 28,857 4,715 19.53 5,205 41.90 0.6494
2024-02-14 2023-12-31 13F AMAZON COM COM 023135106 24,142 -7,036 -22.57 3,668 -7.44 0.6478
2023-11-14 2023-09-30 13F AMAZON COM COM 023135106 31,178 21,693 228.71 3,963 220.63 0.9036
2023-08-14 2023-06-30 13F AMAZON COM COM 023135106 9,485 6,476 215.22 1,236 298.71 0.4695
2023-05-15 2023-03-31 13F AMAZON COM COM 023135106 3,009 19 0.64 311 23.51 0.1691
2023-02-14 2022-12-31 13F AMAZON COM COM 023135106 2,990 2,990 251 0.1255
2022-08-15 2022-06-30 13F AMAZON COM COM 023135106 0 -258 -100.00 0 -100.00
2022-05-16 2022-03-31 13F AMAZON COM COM 023135106 258 -665 -72.05 841 -72.68 0.3933
2022-02-14 2021-12-31 13F AMAZON COM COM 023135106 923 -5 -0.54 3,078 0.95 0.5162
2021-11-15 2021-09-30 13F AMAZON COM COM 023135106 928 -1,003 -51.94 3,049 -54.10 0.2468
2021-08-16 2021-06-30 13F AMAZON COM COM 023135106 1,931 -4,078 -67.86 6,643 -64.27 0.8358
2021-05-17 2021-03-31 13F AMAZON COM COM 023135106 6,009 1,989 49.48 18,592 42.00 3.1088
2021-02-16 2020-12-31 13F AMAZON COM COM 023135106 4,020 -605 -13.08 13,093 -10.09 1.3222
2020-11-13 2020-09-30 13F AMAZON COM COM 023135106 4,625 -5,585 -54.70 14,563 -48.30 1.3878
2020-08-14 2020-06-30 13F AMAZON COM COM 023135106 10,210 -15,236 -59.88 28,168 -43.22 1.8346
2020-05-15 2020-03-31 13F AMAZON COM COM 023135106 25,446 11,307 79.97 49,613 89.89 4.3597
2020-02-13 2019-12-31 13F AMAZON COM COM 023135106 14,139 -769 -5.16 26,127 0.96 2.1378
2019-11-14 2019-09-30 13F AMAZON COM COM 023135106 14,908 -1,319 -8.13 25,879 -15.78 1.7676
2019-08-14 2019-06-30 13F AMAZON COM COM 023135106 16,227 458 2.90 30,728 9.43 2.0011
2019-05-15 2019-03-31 13F AMAZON COM COM 023135106 15,769 3,679 30.43 28,081 54.64 2.3766
2019-02-14 2018-12-31 13F AMAZON COM COM 023135106 12,090 12,090 18,159 1.7879
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.