Amgen Inc.
CH ˙ SWX ˙ NL0000888691
SecurityCH:AMGN / Amgen Inc.
InstitutionValueworks Llc
Latest Disclosed Ownership10,736 shares
Latest Disclosed Value $ 3,777,290
Valueworks Llc reports 1.22% decrease in ownership of AMGN / Amgen Inc.

On May 15, 2026 - Valueworks Llc filed a 13F-HR form disclosing ownership of 10,736 shares of Amgen Inc. (CH:AMGN) valued at $3,777,290 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 10,869 shares of Amgen Inc.. This represents a change in shares of -1.22% 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)
2026-05-15 2026-03-31 13F Amgen COM 031162100 10,736 -133 -1.22 3,777 6.18 1.0296
2026-02-13 2025-12-31 13F Amgen COM 031162100 10,869 -88 -0.80 3,557 15.04 0.9364
2025-11-14 2025-09-30 13F Amgen COM 031162100 10,957 -271 -2.41 3,092 -1.34 0.8999
2025-08-12 2025-06-30 13F Amgen COM 031162100 11,228 102 0.92 3,135 -9.58 1.0319
2025-05-14 2025-03-31 13F Amgen COM 031162100 11,126 491 4.62 3,466 25.04 1.3069
2025-02-14 2024-12-31 13F Amgen COM 031162100 10,635 -1,922 -15.31 2,772 69,200.00 0.9228
2024-11-14 2024-09-30 13F Amgen COM 031162100 12,557 -68 -0.54 4 33.33 1.2882
2024-08-12 2024-06-30 13F Amgen COM 031162100 12,625 745 6.27 4 0.00 1.2258
2024-05-13 2024-03-31 13F Amgen COM 031162100 11,880 105 0.89 3 0.00 1.0970
2024-02-13 2023-12-31 13F Amgen COM 031162100 11,775 -359 -2.96 3 0.00 1.1516
2023-11-13 2023-09-30 13F Amgen COM 031162100 12,134 -345 -2.76 3 50.00 1.1858
2023-08-14 2023-06-30 13F Amgen COM 031162100 12,479 20 0.16 3 -33.33 1.0027
2023-05-12 2023-03-31 13F Amgen COM 031162100 12,459 8 0.06 3 0.00 1.1457
2023-02-14 2022-12-31 13F Amgen COM 031162100 12,451 -145 -1.15 3 -99.89 1.1549
2022-11-09 2022-09-30 13F Amgen COM 031162100 12,596 -484 -3.70 2,839 -10.78 1.1590
2022-08-12 2022-06-30 13F Amgen COM 031162100 13,080 -1,514 -10.37 3,182 -9.83 1.3053
2022-05-13 2022-03-31 13F Amgen COM 031162100 14,594 -235 -1.58 3,529 5.79 1.1571
2022-02-11 2021-12-31 13F Amgen COM 031162100 14,829 560 3.92 3,336 9.95 1.3205
2021-10-19 2021-09-30 13F Amgen COM 031162100 14,269 1 0.01 3,034 -12.77 1.2929
2021-08-10 2021-06-30 13F Amgen COM 031162100 14,268 -120 -0.83 3,478 -2.82 1.5002
2021-05-25 2021-03-31 13F Amgen COM 031162100 14,388 35 0.24 3,579 8.45 2.0270
2021-02-24 2020-12-31 13F Amgen COM 031162100 14,353 -255 -1.75 3,300 -11.12 2.1066
2020-11-17 2020-09-30 13F AMGEN COM 031162100 14,608 -3,220 -18.06 3,713 -11.70 3.1286
2020-08-14 2020-06-30 13F AMGEN COM 031162100 17,828 -8,834 -33.13 4,205 -22.20 3.6072
2020-05-19 2020-03-31 13F AMGEN COM 031162100 26,662 -7,152 -21.15 5,405 -33.70 5.2489
2020-02-14 2019-12-31 13F/A-1 AMGEN COM 031162100 33,814 -259 -0.76 8,152 23.65 5.0962
2020-02-12 2019-12-31 13F AMGEN COM 031162100 250,000 215,927 8,152 5,018,931.8147
2019-11-18 2019-09-30 13F AMGEN COM 031162100 34,073 -7,013 -17.07 6,593 -12.92 4.4736
2019-08-13 2019-06-30 13F AMGEN COM 031162100 41,086 1,192 2.99 7,571 -0.11 4.9907
2019-05-15 2019-03-31 13F AMGEN COM 031162100 39,894 -7,700 -16.18 7,579 -18.20 5.0771
2019-03-12 2018-12-31 13F/A-1 AMGEN COM 031162100 47,594 -480 -1.00 9,265 -7.02 6.3689
2019-02-14 2018-12-31 13F AMGEN COM 031162100 47,594 -480 92,652
2018-11-14 2018-09-30 13F AMGEN COM 031162100 48,074 -2,041 -4.07 9,965 7.73 6.3108
2018-08-13 2018-06-30 13F AMGEN COM 031162100 50,115 -1,495 -2.90 9,250 5.14 5.9315
2018-05-17 2018-03-31 13F AMGEN COM 031162100 51,610 -25 -0.05 8,798 -2.02 6.7116
2018-02-14 2017-12-31 13F Amgen COM 031162100 51,635 415 0.81 8,979 -5.98 6.6753
2017-11-14 2017-09-30 13F Amgen COM 031162100 51,220 270 0.53 9,550 8.83 6.7853
2017-08-14 2017-06-30 13F Amgen COM 031162100 50,950 18,925 59.09 8,775 67.02 6.5687
2017-05-17 2017-03-31 13F Amgen COM 031162100 32,025 -875 -2.66 5,254 9.23 4.0428
2017-01-23 2016-12-31 13F Amgen COM 031162100 32,900 32,900 4,810 3.7853
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.