Amgen Inc.
MX ˙ BMV ˙ NL0000888691
SecurityMX:AMGN / Amgen Inc.
InstitutionWealth Architects, LLC
Latest Disclosed Ownership1,444 shares
Latest Disclosed Value $ 508,121
Wealth Architects, LLC reports 4.18% decrease in ownership of AMGN / Amgen Inc.

On May 15, 2026 - Wealth Architects, LLC filed a 13F-HR form disclosing ownership of 1,444 shares of Amgen Inc. (MX:AMGN) valued at $508,121 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,507 shares of Amgen Inc.. This represents a change in shares of -4.18% 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 AMGEN Equities 031162100 1,444 -63 -4.18 508 3.04 0.0453
2026-02-17 2025-12-31 13F AMGEN COM 031162100 1,507 -11 -0.72 493 15.19 0.0444
2025-11-13 2025-09-30 13F AMGEN COM 031162100 1,518 -10 -0.65 428 0.47 0.0405
2025-07-25 2025-06-30 13F AMGEN COM 031162100 1,528 -90 -5.56 427 -15.48 0.0433
2025-05-14 2025-03-31 13F/A-1 AMGEN COM 031162100 1,618 9 0.56 504 20.29 0.0556
2025-05-12 2025-03-31 13F AMGEN COM 031162100 4,960 3,351 228 0.0252
2025-02-10 2024-12-31 13F AMGEN COM 031162100 1,609 -87 -5.13 419 -23.26 0.0473
2024-10-31 2024-09-30 13F AMGEN COM 031162100 1,696 -206 -10.83 547 -8.08 0.0618
2024-08-08 2024-06-30 13F AMGEN COM 031162100 1,902 -122 -6.03 594 3.30 0.0726
2024-05-13 2024-03-31 13F AMGEN COM 031162100 2,024 -135 -6.25 576 -7.41 0.0758
2024-02-14 2023-12-31 13F AMGEN COM 031162100 2,159 -221 -9.29 622 -2.82 0.0872
2023-11-09 2023-09-30 13F AMGEN COM 031162100 2,380 150 6.73 640 29.09 0.1088
2023-08-02 2023-06-30 13F AMGEN COM 031162100 2,230 -32 -1.41 495 -9.34 0.0817
2023-04-21 2023-03-31 13F AMGEN COM 031162100 2,262 -105 -4.44 547 -12.08 0.0968
2023-02-10 2022-12-31 13F AMGEN COM 031162100 2,367 56 2.42 622 19.19 0.1176
2022-10-24 2022-09-30 13F AMGEN COM 031162100 2,311 62 2.76 521 -4.75 0.1090
2022-07-29 2022-06-30 13F AMGEN COM 031162100 2,249 -190 -7.79 547 -7.29 0.1069
2022-05-17 2022-03-31 13F AMGEN COM 031162100 2,439 265 12.19 590 20.65 0.1003
2022-01-19 2021-12-31 13F AMGEN COM 031162100 2,174 -62 -2.77 489 2.95 0.0857
2021-11-09 2021-09-30 13F AMGEN COM 031162100 2,236 6 0.27 475 -12.68 0.0922
2021-08-09 2021-06-30 13F AMGEN COM 031162100 2,230 -53 -2.32 544 -4.23 0.1066
2021-04-29 2021-03-31 13F AMGEN COM 031162100 2,283 -38 -1.64 568 6.37 0.1230
2021-01-28 2020-12-31 13F AMGEN COM 031162100 2,321 12 0.52 534 -9.03 0.1242
2020-11-09 2020-09-30 13F AMGEN COM 031162100 2,309 155 7.20 587 15.55 0.1593
2020-08-14 2020-06-30 13F AMGEN COM 031162100 2,154 -46 -2.09 508 13.90 0.1425
2020-04-23 2020-03-31 13F AMGEN COM 031162100 2,200 47 2.18 446 -14.07 0.1547
2020-01-28 2019-12-31 13F AMGEN COM 031162100 2,153 67 3.21 519 28.47 0.1449
2019-10-23 2019-09-30 13F AMGEN COM 031162100 2,086 -6 -0.29 404 4.66 0.1230
2019-07-12 2019-06-30 13F AMGEN COM 031162100 2,092 66 3.26 386 0.26 0.1163
2019-05-01 2019-03-31 13F AMGEN COM 031162100 2,026 62 3.16 385 0.79 0.1200
2019-01-17 2018-12-31 13F AMGEN COM 031162100 1,964 -31 -1.55 382 -7.73 0.1373
2018-10-04 2018-09-30 13F AMGEN COM 031162100 1,995 -99 -4.73 414 6.98 0.1277
2018-07-19 2018-06-30 13F AMGEN COM 031162100 2,094 113 5.70 387 14.50 0.1253
2018-04-13 2018-03-31 13F AMGEN COM 031162100 1,981 -100 -4.81 338 -6.63 0.1119
2018-04-13 2017-12-31 13F/A-1 AMGEN COM 031162100 2,081 0 0.00 362 -6.70 0.1187
2018-01-30 2017-12-31 13F AMGEN COM 031162100 2,081 0 362 0.1184
2017-11-08 2017-09-30 13F AMGEN COM 031162100 2,081 2,081 388 0.1349
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.