Amgen Inc.
MX ˙ BMV ˙ NL0000888691
SecurityMX:AMGN / Amgen Inc.
InstitutionTFB Advisors LLC
Latest Disclosed Ownership2,334 shares
Latest Disclosed Value $ 821,218
TFB Advisors LLC reports 12.26% decrease in ownership of AMGN / Amgen Inc.

On April 20, 2026 - TFB Advisors LLC filed a 13F-HR form disclosing ownership of 2,334 shares of Amgen Inc. (MX:AMGN) valued at $821,218 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 2,660 shares of Amgen Inc.. This represents a change in shares of -12.26% 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)
2026-04-20 2026-03-31 13F AMGEN COM 031162100 2,334 -326 -12.26 821 -5.63 0.4299
2026-02-13 2025-12-31 13F AMGEN COM 031162100 2,660 -193 -6.76 871 3.82 0.2432
2025-11-04 2025-09-30 13F AMGEN COM 031162100 2,853 -529 -15.64 838 -11.23 0.2441
2025-07-30 2025-06-30 13F AMGEN COM 031162100 3,382 -378 -10.05 944 -19.39 0.2473
2025-05-14 2025-03-31 13F AMGEN COM 031162100 3,760 -305 -7.50 1,171 10.58 0.3375
2025-01-29 2024-12-31 13F AMGEN COM 031162100 4,065 -3 -0.07 1,060 -19.16 0.3030
2024-10-31 2024-09-30 13F AMGEN COM 031162100 4,068 -30 -0.73 1,311 2.34 0.3900
2024-07-30 2024-06-30 13F AMGEN COM 031162100 4,098 455 12.49 1,280 26.73 0.4170
2024-05-03 2024-03-31 13F AMGEN COM 031162100 3,643 1,321 56.89 1,010 51.20 0.3665
2024-01-18 2023-12-31 13F AMGEN COM 031162100 2,322 2,322 669 0.3426
2023-11-13 2023-09-30 13F AMGEN COM 031162100 0 -3,035 -100.00 0 -100.00
2023-07-18 2023-06-30 13F AMGEN COM 031162100 3,035 1,618 114.18 674 96.78 0.2935
2023-04-10 2023-03-31 13F AMGEN COM 031162100 1,417 15 1.07 343 -7.07 0.2605
2023-02-15 2022-12-31 13F AMGEN COM 031162100 1,402 1,402 368 0.3084
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.