Amgen Inc.
MX ˙ BMV ˙ NL0000888691
SecurityMX:AMGN / Amgen Inc.
InstitutionAmerican Trust
Latest Disclosed Ownership731 shares
Latest Disclosed Value $ 257,202
American Trust reports 19.32% decrease in ownership of AMGN / Amgen Inc.

On May 1, 2026 - American Trust filed a 13F-HR form disclosing ownership of 731 shares of Amgen Inc. (MX:AMGN) valued at $257,202 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 14, 2026 disclosing 906 shares of Amgen Inc.. This represents a change in shares of -19.32% 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)
2026-05-01 2026-03-31 13F AMGEN Equities 031162100 731 -175 -19.32 257 -13.18 0.0227
2026-02-14 2025-12-31 13F AMGEN Equities 031162100 906 45 5.23 297 22.31 0.0249
2025-11-17 2025-09-30 13F AMGEN Equities 031162100 861 861 243 0.0205
2024-09-12 2024-06-30 13F AMGEN Equities 031162100 0 -764 -100.00 0 -100.00
2024-06-11 2024-03-31 13F AMGEN Equities 031162100 764 -480 -38.59 217 -39.39 0.0181
2024-02-21 2023-12-31 13F AMGEN Equities 031162100 1,244 1,244 358 0.0265
2023-11-15 2023-09-30 13F AMGEN Equities 031162100 0 -1,341 -100.00 0 -100.00
2023-08-14 2023-06-30 13F AMGEN Equities 031162100 1,341 -70 -4.96 298 -12.90 0.0206
2023-05-22 2023-03-31 13F AMGEN Equities 031162100 1,411 37 2.69 341 -5.28 0.0237
2023-02-16 2022-12-31 13F AMGEN Equities 031162100 1,374 407 42.09 361 65.14 0.0335
2022-12-02 2022-09-30 13F AMGEN Equities 031162100 967 -30 -3.01 218 -10.29 0.0184
2022-10-03 2022-06-30 13F AMGEN Equities 031162100 997 80 8.72 243 9.46 0.0195
2022-06-08 2022-03-31 13F AMGEN Equities 031162100 917 917 222 0.0149
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.