Amgen Inc.
MX ˙ BMV ˙ NL0000888691
SecurityMX:AMGN / Amgen Inc.
InstitutionRockefeller Capital Management L.P.
Latest Disclosed Ownership643,944 shares
Latest Disclosed Value $ 226,572,428
Rockefeller Capital Management L.P. reports 0.28% increase in ownership of AMGN / Amgen Inc.

On May 14, 2026 - Rockefeller Capital Management L.P. filed a 13F-HR form disclosing ownership of 643,944 shares of Amgen Inc. (MX:AMGN) valued at $226,572,428 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 16, 2026 disclosing 642,161 shares of Amgen Inc.. This represents a change in shares of 0.28% 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)
2026-05-14 2026-03-31 13F AMGEN COM 031162100 643,944 1,783 0.28 226,572 7.80 0.4018
2026-03-16 2025-12-31 13F/A-1 AMGEN COM 031162100 642,161 138,577 27.52 210,186 47.90 0.3785
2026-02-14 2025-12-31 13F AMGEN COM 031162100 2,289,179 1,785,595 210,194 0.1919
2025-11-14 2025-09-30 13F AMGEN COM 031162100 503,584 -28,646 -5.38 142,112 -4.37 0.2780
2025-08-14 2025-06-30 13F/A-1 AMGEN COM 031162100 532,230 34,559 6.94 148,604 -4.16 0.3259
2025-08-08 2025-06-30 13F AMGEN COM 031162100 522,925 25,254 146,006 0.1840
2025-05-14 2025-03-31 13F AMGEN COM 031162100 497,671 45,815 10.14 155,050 31.63 0.3827
2025-02-13 2024-12-31 13F AMGEN COM 031162100 451,856 -734 -0.16 117,790 -19.21 0.3051
2024-11-14 2024-09-30 13F AMGEN COM 031162100 452,590 4,901 1.09 145,800 4.25 0.3924
2024-08-12 2024-06-30 13F AMGEN COM 031162100 447,689 14,718 3.40 139,859 13.61 0.3975
2024-05-14 2024-03-31 13F AMGEN COM 031162100 432,971 -183,549 -29.77 123,103 -30.67 0.3593
2024-02-14 2023-12-31 13F AMGEN COM 031162100 616,520 111,373 22.05 177,571 30.79 0.5933
2023-11-14 2023-09-30 13F AMGEN COM 031162100 505,147 237,408 88.67 135,765 129.85 0.5236
2023-08-14 2023-06-30 13F AMGEN COM 031162100 267,739 6,634 2.54 59,068 93,657.14 0.2288
2023-05-16 2023-03-31 13F AMGEN COM 031162100 261,105 -15,150 -5.48 63 -99.91 0.2715
2023-03-06 2022-12-31 13F AMGEN COM 031162100 276,255 -7,570 -2.67 72,555 13.42 0.3646
2022-11-02 2022-09-30 13F AMGEN COM 031162100 283,825 78,035 37.92 63,972 27.77 0.3306
2022-08-12 2022-06-30 13F AMGEN COM 031162100 205,790 10,402 5.32 50,067 5.97 0.2660
2022-05-13 2022-03-31 13F AMGEN COM 031162100 195,388 18,500 10.46 47,246 18.73 0.2279
2022-02-14 2021-12-31 13F AMGEN COM 031162100 176,888 20,704 13.26 39,793 19.82 0.1857
2021-11-12 2021-09-30 13F AMGEN COM 031162100 156,184 16,291 11.65 33,211 -2.60 0.1745
2021-08-10 2021-06-30 13F AMGEN COM 031162100 139,893 15,496 12.46 34,097 10.17 0.1921
2021-05-11 2021-03-31 13F AMGEN COM 031162100 124,397 12,204 10.88 30,950 19.99 0.2094
2021-02-12 2020-12-31 13F AMGEN COM 031162100 112,193 25,935 30.07 25,794 17.66 0.1954
2020-11-13 2020-09-30 13F AMGEN COM 031162100 86,258 10,240 13.47 21,922 22.26 0.2054
2020-08-12 2020-06-30 13F AMGEN COM 031162100 76,018 3,654 5.05 17,930 22.21 0.1876
2020-05-12 2020-03-31 13F AMGEN COM 031162100 72,364 6,861 10.47 14,671 -7.09 0.1925
2020-02-07 2019-12-31 13F AMGEN COM 031162100 65,503 29,622 82.56 15,790 127.39 0.1969
2019-11-12 2019-09-30 13F AMGEN COM 031162100 35,881 11,382 46.46 6,944 53.80 0.0942
2019-08-09 2019-06-30 13F AMGEN COM 031162100 24,499 10,336 72.98 4,515 67.78 0.0630
2019-05-10 2019-03-31 13F AMGEN COM 031162100 14,163 12,396 701.53 2,691 680.00 0.0384
2019-02-12 2018-12-31 13F AMGEN COM 031162100 1,767 60 3.51 345 -2.54 0.0060
2018-11-02 2018-09-30 13F Amgen Common 031162100 1,707 0 0.00 354 12.38 0.0054
2018-07-31 2018-06-30 13F Amgen Common 031162100 1,707 15 0.89 315 9.00 0.0051
2018-05-09 2018-03-31 13F Amgen Common 031162100 1,692 1,692 289 0.0048
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.