Amazon.com, Inc.
BG ˙ BUL ˙ US0231351067
SecurityBG:AMZ / Amazon.com, Inc.
InstitutionAssetmark, Inc
Latest Disclosed Ownership1,831,400 shares
Latest Disclosed Value $ 381,425,735
Assetmark, Inc reports 0.68% increase in ownership of AMZ / Amazon.com, Inc.

On May 6, 2026 - Assetmark, Inc filed a 13F-HR form disclosing ownership of 1,831,400 shares of Amazon.com, Inc. (BG:AMZ) valued at $381,425,735 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 1,819,026 shares of Amazon.com, Inc.. This represents a change in shares of 0.68% 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)
2026-05-06 2026-03-31 13F AMAZON COM COM 023135106 1,831,400 12,374 0.68 381,426 -9.16 0.7778
2026-01-23 2025-12-31 13F AMAZON COM COM 023135106 1,819,026 143,398 8.56 419,868 14.12 0.8562
2025-11-06 2025-09-30 13F AMAZON COM COM 023135106 1,675,628 115,883 7.43 367,918 7.52 0.7887
2025-08-04 2025-06-30 13F AMAZON COM COM 023135106 1,559,745 -219,313 -12.33 342,192 1.10 0.8079
2025-05-06 2025-03-31 13F AMAZON COM COM 023135106 1,779,058 97,042 5.77 338,484 -8.27 0.9297
2025-02-06 2024-12-31 13F AMAZON COM COM 023135106 1,682,016 197,692 13.32 369,017 33.42 1.0024
2024-11-01 2024-09-30 13F AMAZON COM COM 023135106 1,484,324 101,666 7.35 276,574 3.51 0.7921
2024-08-13 2024-06-30 13F AMAZON COM COM 023135106 1,382,658 118,869 9.41 267,199 17.21 0.8264
2024-05-07 2024-03-31 13F AMAZON COM COM 023135106 1,263,789 810,720 178.94 227,962 231.15 0.7411
2024-02-09 2023-12-31 13F AMAZON COM COM 023135106 453,069 77,419 20.61 68,839 44.16 0.2488
2023-10-27 2023-09-30 13F AMAZON COM COM 023135106 375,650 55,968 17.51 47,753 14.59 0.1909
2023-08-11 2023-06-30 13F AMAZON COM INC COM COM 023135106 319,682 40,052 14.32 41,674 44.29 0.1635
2023-05-05 2023-03-31 13F AMAZON COM INC COM COM 023135106 279,630 27,043 10.71 28,883 36.13 0.1194
2023-02-10 2022-12-31 13F AMAZON COM COM 023135106 252,587 43,425 20.76 21,217 -10.23 0.0920
2022-11-01 2022-09-30 13F AMAZON COM COM 023135106 209,162 27,070 14.87 23,635 22.21 0.1105
2022-08-03 2022-06-30 13F AMAZON COM INC COM COM 023135106 182,092 175,556 2,685.99 19,340 -9.23 0.0867
2022-05-13 2022-03-31 13F AMAZON COM INC COM COM 023135106 6,536 3,345 104.83 21,307 100.25 0.0892
2022-02-14 2021-12-31 13F AMAZON COM INC COM COM 023135106 3,191 2,240 235.54 10,640 240.59 0.0437
2021-11-12 2021-09-30 13F AMAZON COM INC COM COM 023135106 951 -19,834 -95.42 3,124 -95.63 0.0140
2021-08-16 2021-06-30 13F AMAZON COM INC COM COM 023135106 20,785 2,052 10.95 71,504 23.37 0.3316
2021-05-14 2021-03-31 13F AMAZON COM COM 023135106 18,733 709 3.93 57,961 -1.26 0.2989
2021-02-10 2020-12-31 13F AMAZON COM INC COM COM 023135106 18,024 1,279 7.64 58,703 11.34 0.3271
2020-11-13 2020-09-30 13F AMAZON COM INC COM COM 023135106 16,745 7,702 85.17 52,725 120.92 0.3402
2020-08-11 2020-06-30 13F AMAZON COM INC COM COM 023135106 9,043 249 2.83 23,866 39.19 0.1707
2020-05-12 2020-03-31 13F AMAZON COM INC COM COM 023135106 8,794 -483 -5.21 17,146 0.02 0.1452
2020-02-11 2019-12-31 13F AMAZON COM INC COM COM 023135106 9,277 1,075 13.11 17,142 20.40 0.1302
2019-11-13 2019-09-30 13F AMAZON COM INC COM COM 023135106 8,202 333 4.23 14,238 -4.45 0.1192
2019-08-14 2019-06-30 13F AMAZON COM INC COM COM 023135106 7,869 368 4.91 14,901 11.56 0.1215
2019-05-14 2019-03-31 13F AMAZON COM INC COM COM 023135106 7,501 467 6.64 13,357 26.43 0.1207
2019-02-13 2018-12-31 13F AMAZON COM INC COM COM 023135106 7,034 1,080 18.14 10,565 -11.41 0.1020
2018-11-13 2018-09-30 13F AMAZON COM INC COM COM 023135106 5,954 -280 -4.49 11,926 12.54 0.1084
2018-08-01 2018-06-30 13F AMAZON COM INC COM COM 023135106 6,234 71 1.15 10,597 18.80 0.1041
2018-05-16 2018-03-31 13F AMAZON COM INC COM COM 023135106 6,163 -3,486 -36.13 8,920 -20.95 0.0923
2018-02-13 2017-12-31 13F AMAZON COM INC COM COM 023135106 9,649 624 6.91 11,284 30.06 0.1163
2017-11-08 2017-09-30 13F AMAZON COM INC COM COM 023135106 9,025 8,500 1,619.05 8,676 1,607.87 0.0987
2017-08-14 2017-06-30 13F AMAZON COM INC COM COM 023135106 525 -22 -4.02 508 4.74 0.0064
2017-09-15 2017-03-31 13F/A-1 AMAZON COM INC COM COM 023135106 547 -34 -5.85 485 11.24 0.0064
2017-05-08 2017-03-31 13F AMAZON COM INC COM COM 023135106 547 -34 485
2017-09-15 2016-12-31 13F/A-1 AMAZON COM INC COM COM 023135106 581 98 20.29 436 7.92 0.0064
2017-02-14 2016-12-31 13F AMAZON COM INC COM COM 023135106 581 98 436
2017-09-14 2016-09-30 13F/A-1 AMAZON COM INC COM COM 023135106 483 -301 -38.39 404 -27.99 0.0061
2016-11-04 2016-09-30 13F AMAZON COM INC COM COM 023135106 483 -301 404
2017-09-14 2016-06-30 13F/A-1 AMAZON COM INC COM COM 023135106 784 -114 -12.69 561 5.25 0.0094
2016-08-08 2016-06-30 13F AMAZON COM INC COM COM 023135106 784 -114 561
2017-09-14 2016-03-31 13F/A-1 AMAZON COM INC COM COM 023135106 898 -273 -23.31 533 -32.62 0.0093
2016-05-13 2016-03-31 13F AMAZON COM INC COM COM 023135106 898 -273 533
2017-09-14 2015-12-31 13F/A-1 AMAZON COM INC COM COM 023135106 1,171 838 251.65 791 365.29 0.0147
2016-02-12 2015-12-31 13F AMAZON COM INC COM COM 023135106 1,171 838 791
2016-01-05 2015-09-30 13F/A-1 AMAZON COM INC COM COM 023135106 333 295 776.32 170 962.50 0.0035
2015-11-10 2015-09-30 13F AMAZON COM INC COM COM 023135106 333 170
2015-08-13 2015-06-30 13F AMAZON COM INC COM COM 023135106 38 38 16 0.0003
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.