Amazon.com, Inc.
BG ˙ BUL ˙ US0231351067
SecurityBG:AMZ / Amazon.com, Inc.
InstitutionSummit Trail Advisors, Llc
Latest Disclosed Ownership371,719 shares
Latest Disclosed Value $ 77,417,998
Summit Trail Advisors, Llc reports 31.53% increase in ownership of AMZ / Amazon.com, Inc.

On May 12, 2026 - Summit Trail Advisors, Llc filed a 13F-HR form disclosing ownership of 371,719 shares of Amazon.com, Inc. (BG:AMZ) valued at $77,417,998 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 282,604 shares of Amazon.com, Inc.. This represents a change in shares of 31.53% 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)
2026-05-12 2026-03-31 13F AMAZON COM COM 023135106 371,719 89,115 31.53 77,418 18.68 1.1091
2026-02-17 2025-12-31 13F AMAZON COM COM 023135106 282,604 -29,792 -9.54 65,231 -4.90 1.1277
2025-11-14 2025-09-30 13F AMAZON COM COM 023135106 312,396 24,968 8.69 68,593 8.77 0.9472
2025-08-14 2025-06-30 13F AMAZON COM COM 023135106 287,428 287,428 63,063 1.0824
2025-01-29 2024-12-31 13F AMAZON COM COM 023135106 0 -122,470 -100.00 0 -100.00
2024-11-12 2024-09-30 13F AMAZON COM COM 023135106 122,470 11,845 10.71 22,820 6.74 0.5657
2024-08-13 2024-06-30 13F Amazon Com COM 023135106 110,625 -13,733 -11.04 21,378 -4.69 0.5619
2024-04-23 2024-03-31 13F AMAZON COM COM 023135106 124,358 10,972 9.68 22,432 30.21 0.5963
2024-02-06 2023-12-31 13F AMAZON COM COM 023135106 113,386 -37,247 -24.73 17,228 -10.03 0.5701
2023-10-30 2023-09-30 13F AMAZON COM COM 023135106 150,633 -7,872 -4.97 19,148 -7.33 0.7044
2023-07-25 2023-06-30 13F AMAZON COM COM 023135106 158,505 11,291 7.67 20,663 35.89 0.7796
2023-05-04 2023-03-31 13F AMAZON COM COM 023135106 147,214 -11,067 -6.99 15,206 14.37 0.6125
2023-02-07 2022-12-31 13F Amazon Com COM 023135106 158,281 3,908 2.53 13,296 -23.78 0.5906
2022-11-10 2022-09-30 13F Amazon Com Stock 023135106 154,373 -683 -0.44 17,444 5.93 0.9434
2022-08-09 2022-06-30 13F Amazon Com COM 023135106 155,056 147,784 2,032.23 16,468 -30.53 1.0182
2022-05-16 2022-03-31 13F Amazon Com EQUITY 023135106 7,272 249 3.55 23,706 1.23 1.9173
2022-02-11 2021-12-31 13F Amazon Com Equity 023135106 7,023 1,903 37.17 23,417 39.24 1.5100
2021-11-16 2021-09-30 13F Amazon Com COM 023135106 5,120 495 10.70 16,818 5.71 1.2621
2021-08-16 2021-06-30 13F Amazon Com Equity 023135106 4,625 191 4.31 15,909 15.97 1.3935
2021-05-17 2021-03-31 13F AMAZON COM Equity 023135956 4,434 -44 -0.98 13,718 -5.93 1.4794
2021-02-16 2020-12-31 13F AMAZON COM Equity 023135106 4,478 377 9.19 14,583 14.34 1.8386
2020-11-16 2020-09-30 13F/A-1 Amazon Com Equity 023135106 4,101 341 9.07 12,754 22.97 2.4665
2020-08-13 2020-06-30 13F Amazon Com Equity 023135106 3,760 3,760 10,372 1.9348
2020-05-15 2020-03-31 13F Amazon Com Equity 023135106 0 -3,535 -100.00 0 -100.00
2020-02-13 2019-12-31 13F Amazon Com Equity 023135106 3,535 -59 -1.64 6,532 4.70 3.7870
2019-11-14 2019-09-30 13F Amazon Com Equity 023135106 3,594 216 6.39 6,239 -2.47 2.2179
2019-08-08 2019-06-30 13F AMAZON COM INC COM EQUITY 023135106 3,378 11 0.33 6,397 6.69 2.7973
2019-05-16 2019-03-31 13F AMAZON COM INC COM EQUITY 023135106 3,367 -1,845 -35.40 5,996 -23.40 2.5946
2019-02-13 2018-12-31 13F AMAZON COM INC COM EQUITY 023135106 5,212 -620 -10.63 7,828 -32.99 2.7686
2018-11-14 2018-09-30 13F AMAZON COM INC COM EQUITY 023135106 5,832 5,832 11,681 2.5776
2018-08-10 2018-06-30 13F AMAZON COM INC COM EQUITY 023135106 0 -6,385 -100.00 0 -100.00
2018-05-22 2018-03-31 13F/A-1 AMAZON COM INC COM EQUITY 023135106 6,385 929 17.03 9,848 33.79 1.6714
2018-05-21 2018-03-31 13F AMAZON COM INC COM EQUITY 023135106 9,848,415 9,842,959 9,848
2018-02-14 2017-12-31 13F AMAZON.COM EQUITY 023135106 5,456 5,456 7,361 0.9295
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.