Amgen Inc.
MX ˙ BMV ˙ NL0000888691
SecurityMX:AMGN / Amgen Inc.
InstitutionBanco Santander, S.A.
Latest Disclosed Ownership17,774 shares
Latest Disclosed Value $ 6,253,782
Banco Santander, S.A. reports 33.43% decrease in ownership of AMGN / Amgen Inc.

On May 8, 2026 - Banco Santander, S.A. filed a 13F-HR form disclosing ownership of 17,774 shares of Amgen Inc. (MX:AMGN) valued at $6,253,782 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 26,701 shares of Amgen Inc.. This represents a change in shares of -33.43% 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)
2026-05-08 2026-03-31 13F AMGEN COM 031162100 17,774 -8,927 -33.43 6,254 -28.45 0.0504
2026-02-13 2025-12-31 13F AMGEN COM 031162100 26,701 6,648 33.15 8,740 54.45 0.0654
2025-11-12 2025-09-30 13F AMGEN COM 031162100 20,053 1,102 5.81 5,659 6.94 0.0502
2025-08-01 2025-06-30 13F AMGEN COM 031162100 18,951 10,231 117.33 5,291 94.81 0.0502
2025-05-09 2025-03-31 13F AMGEN COM 031162100 8,720 6,119 235.26 2,717 301.18 0.0300
2025-02-07 2024-12-31 13F AMGEN COM 031162100 2,601 -56,631 -95.61 678 -96.45 0.0082
2024-11-12 2024-09-30 13F AMGEN COM 031162100 59,232 -24,628 -29.37 19,085 -27.16 0.2249
2024-07-29 2024-06-30 13F AMGEN COM 031162100 83,860 -8,657 -9.36 26,202 -0.39 0.3247
2024-05-10 2024-03-31 13F AMGEN COM 031162100 92,517 -32,140 -25.78 26,304 -26.74 0.3171
2024-02-09 2023-12-31 13F AMGEN COM 031162100 124,657 -4,920 -3.80 35,904 3.10 0.4243
2023-11-08 2023-09-30 13F AMGEN COM 031162100 129,577 8,440 6.97 34,825 29.49 0.4937
2023-08-14 2023-06-30 13F AMGEN COM 031162100 121,137 45,511 60.18 26,895 47.11 0.3528
2023-05-10 2023-03-31 13F AMGEN COM 031162100 75,626 -330 -0.43 18,283 -8.36 0.2736
2023-02-13 2022-12-31 13F AMGEN COM 031162100 75,956 -744 -0.97 19,949 15.39 0.2996
2022-11-08 2022-09-30 13F AMGEN COM 031162100 76,700 -11,460 -13.00 17,288 -19.40 0.2306
2022-07-28 2022-06-30 13F AMGEN COM 031162100 88,160 8,451 10.60 21,449 11.28 0.2858
2022-05-09 2022-03-31 13F AMGEN COM 031162100 79,709 -121 -0.15 19,275 7.33 0.2069
2022-02-09 2021-12-31 13F AMGEN COM 031162100 79,830 4,379 5.80 17,959 11.93 0.0968
2021-11-08 2021-09-30 13F AMGEN COM 031162100 75,451 2,010 2.74 16,045 -10.37 0.0862
2021-07-29 2021-06-30 13F AMGEN COM 031162100 73,441 5,768 8.52 17,901 6.31 0.1000
2021-05-10 2021-03-31 13F AMGEN COM 031162100 67,673 0 0.00 16,838 8.22 0.1187
2021-02-12 2020-12-31 13F AMGEN COM 031162100 67,673 -9,871 -12.73 15,559 -21.06 0.1115
2020-11-09 2020-09-30 13F AMGEN COM 031162100 77,544 76,194 5,644.00 19,709 6,097.80 0.2592
2020-08-05 2020-06-30 13F AMGEN COM 031162100 1,350 -8,319 -86.04 318 -83.78 0.0041
2020-05-11 2020-03-31 13F AMGEN COM 031162100 9,669 907 10.35 1,960 -7.20 0.0224
2020-02-07 2019-12-31 13F AMGEN COM 031162100 8,762 120 1.39 2,112 25.79 0.0195
2019-11-06 2019-09-30 13F AMGEN COM 031162100 8,642 -4,145 -32.42 1,679 -28.74 0.0163
2019-08-07 2019-06-30 13F AMGEN COM 031162100 12,787 -1,058 -7.64 2,356 -10.42 0.0239
2019-05-13 2019-03-31 13F AMGEN COM 031162100 13,845 440 3.28 2,630 0.80 0.0297
2019-02-12 2018-12-31 13F AMGEN COM 031162100 13,405 151 1.14 2,609 -5.06 0.0330
2018-11-13 2018-09-30 13F AMGEN COM 031162100 13,254 4,707 55.07 2,748 74.25 0.0314
2018-08-14 2018-06-30 13F AMGEN COM 031162100 8,547 2,325 37.37 1,577 48.63 0.0184
2018-05-14 2018-03-31 13F AMGEN COM 031162100 6,222 6,222 1,061 0.0124
2017-08-11 2017-06-30 13F AMGEN COM 031162100 0 -1,300 -100.00 0 -100.00
2017-05-12 2017-03-31 13F AMGEN COM 031162100 1,300 -4,445 -77.37 213 -73.31 0.0055
2017-02-17 2016-12-31 13F/A-1 AMGEN COM 031162100 5,745 5,745 798 0.0210
2017-02-14 2016-12-31 13F AMGEN COM 031162100 5,745 798
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.