Amazon.com, Inc.
MX ˙ BMV ˙ US0231351067
SecurityMX:AMZN / Amazon.com, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership9,518,243 shares
Latest Disclosed Value $ 2,196,997,891
Sei Investments Co reports 15.66% increase in ownership of AMZN / Amazon.com, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 9,518,243 shares of Amazon.com, Inc. (MX:AMZN) valued at $2,196,997,891 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 8,229,689 shares of Amazon.com, Inc.. This represents a change in shares of 15.66% 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.

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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)
2026-02-13 2025-12-31 13F AMAZON COM COM 023135106 9,518,243 1,288,554 15.66 2,196,998 21.58 2.1686
2025-11-13 2025-09-30 13F AMAZON COM COM 023135106 8,229,689 28,817 0.35 1,806,988 0.43 1.9431
2025-08-14 2025-06-30 13F AMAZON COM COM 023135106 8,200,872 -529,283 -6.06 1,799,189 8.32 2.0855
2025-05-14 2025-03-31 13F/A-1 AMAZON COM COM 023135106 8,730,155 254,805 3.01 1,660,998 -10.67 2.1378
2025-05-13 2025-03-31 13F AMAZON COM COM 023135106 8,560,666 85,316 1,838,838 1.9999
2025-02-11 2024-12-31 13F AMAZON COM COM 023135106 8,475,350 21,346 0.25 1,859,407 18.04 2.3879
2024-11-12 2024-09-30 13F AMAZON COM COM 023135106 8,454,004 449,054 5.61 1,575,234 1.83 2.0456
2024-08-13 2024-06-30 13F AMAZON COM COM 023135106 8,004,950 209,490 2.69 1,546,957 10.01 2.1916
2024-05-07 2024-03-31 13F AMAZON COM COM 023135106 7,795,460 346,370 4.65 1,406,147 24.24 2.0603
2024-02-14 2023-12-31 13F AMAZON COM COM 023135106 7,449,090 -30,133 -0.40 1,131,814 19.04 1.8168
2023-11-14 2023-09-30 13F AMAZON COM COM 023135106 7,479,223 805,961 12.08 950,759 9.29 1.7084
2023-08-11 2023-06-30 13F AMAZON COM COM 023135106 6,673,262 714,942 12.00 869,928 41.35 1.5174
2023-05-12 2023-03-31 13F AMAZON COM COM 023135106 5,958,320 1,317,566 28.39 615,437 57.88 1.1432
2023-02-10 2022-12-31 13F AMAZON COM COM 023135106 4,640,754 -773,004 -14.28 389,824 -36.28 0.8663
2022-11-14 2022-09-30 13F AMAZON COM COM 023135106 5,413,758 22,359 0.41 611,759 6.84 1.3646
2022-08-15 2022-06-30 13F AMAZON COM COM 023135106 5,391,399 5,161,113 2,241.18 572,577 -23.78 1.2365
2022-05-13 2022-03-31 13F AMAZON COM COM 023135106 230,286 9,173 4.15 751,180 1.92 1.5099
2022-02-14 2021-12-31 13F AMAZON COM COM 023135106 221,113 19,783 9.83 737,051 11.42 1.3827
2021-11-12 2021-09-30 13F AMAZON COM COM 023135106 201,330 3,217 1.62 661,530 -2.87 1.3879
2021-08-06 2021-06-30 13F AMAZON COM COM 023135106 198,113 1,017 0.52 681,073 10.95 1.5102
2021-05-12 2021-03-31 13F AMAZON COM COM 023135106 197,096 -8,899 -4.32 613,863 -8.56 1.5467
2021-02-08 2020-12-31 13F AMAZON COM COM 023135106 205,995 10,861 5.57 671,343 9.34 1.7356
2020-12-04 2020-09-30 13F/A-1 AMAZON COM COM 023135106 195,134 6,864 3.65 613,982 18.11 1.7779
2020-11-06 2020-09-30 13F AMAZON COM COM 023135106 258,958 70,688 814,947 1,962,211.1817
2020-08-17 2020-06-30 13F/A-1 AMAZON COM COM 023135106 188,270 -58,290 -23.64 519,851 8.05 1.6133
2020-08-11 2020-06-30 13F AMAZON COM COM 023135106 194,642 -51,918 383,911 1,041,379.0230
2020-05-14 2020-03-31 13F AMAZON COM COM 023135106 246,560 -15,215 -5.81 481,117 -0.61 1.7671
2020-02-06 2019-12-31 13F AMAZON COM COM 023135106 261,775 -28,682 -9.87 484,059 -6.53 1.4439
2019-11-12 2019-09-30 13F AMAZON COM COM 023135106 290,457 58,733 25.35 517,880 17.95 1.3248
2019-08-14 2019-06-30 13F AMAZON COM COM 023135106 231,724 -78,150 -25.22 439,072 -20.46 1.4342
2019-05-15 2019-03-31 13F AMAZON COM COM 023135106 309,874 56,456 22.28 551,990 21.51 1.8538
2019-02-13 2018-12-31 13F AMAZON COM COM 023135106 253,418 18,854 8.04 454,280 -3.31 1.6174
2018-11-08 2018-09-30 13F AMAZON COM COM 023135106 234,564 -48,097 -17.02 469,809 -2.22 1.7029
2018-08-03 2018-06-30 13F AMAZON COM COM 023135106 282,661 251,227 799.22 480,471 956.12 1.6331
2018-05-11 2018-03-31 13F AMAZON COM COM 023135106 31,434 -169,026 -84.32 45,494 -79.99 0.1744
2018-02-08 2017-12-31 13F AMAZON COM COM 023135106 200,460 -17,927 -8.21 227,377 26.07 0.7896
2017-11-06 2017-09-30 13F AMAZON COM COM 023135106 218,387 -6,226 -2.77 180,354 -17.05 0.6411
2017-07-31 2017-06-30 13F AMAZON COM COM 023135106 224,613 17,596 8.50 217,425 18.47 0.8668
2017-05-05 2017-03-31 13F AMAZON COM COM 023135106 207,017 12,035 6.17 183,529 36.44 0.8043
2017-02-02 2016-12-31 13F AMAZON COM COM 023135106 194,982 -40,359 -17.15 134,517 -31.74 0.6514
2016-11-04 2016-09-30 13F AMAZON COM COM 023135106 235,341 10,116 4.49 197,052 22.26 1.0010
2016-08-11 2016-06-30 13F AMAZON COM COM 023135106 225,225 13,984 6.62 161,175 28.53 0.9667
2016-05-10 2016-03-31 13F/A-1 AMAZON COM COM 023135106 211,241 -9,605 -4.35 125,401 -15.99 0.7804
2016-02-03 2015-12-31 13F AMAZON COM COM 023135106 220,846 69,012 45.45 149,267 92.05 0.9097
2015-11-02 2015-09-30 13F/A-1 AMAZON COM COM 023135106 151,834 36,553 31.71 77,723 55.31 0.7134
2015-10-30 2015-09-30 13F AMAZON COM COM 023135106 151,834 77,723
2015-08-07 2015-06-30 13F/A-1 AMAZON COM COM 023135106 115,281 19,065 19.81 50,043 39.79 0.4524
2015-08-04 2015-06-30 13F AMAZON COM COM 023135106 115,281 19,065 50,043 0.4524
2015-05-14 2015-03-31 13F/A-1 AMAZON COM COM 023135106 96,216 8,489 9.68 35,799 31.44 0.3109
2015-05-01 2015-03-31 13F AMAZON COM COM 023135106 96,216 35,799
2015-02-10 2014-12-31 13F AMAZON COM COM 023135106 87,727 87,727 27,235 0.2407
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.