Amgen Inc.
CH ˙ SWX ˙ NL0000888691
SecurityCH:AMGN / Amgen Inc.
InstitutionHartland & Co., LLC
Latest Disclosed Ownership50,221 shares
Latest Disclosed Value $ 17,670,200
Hartland & Co., LLC reports 41.28% increase in ownership of AMGN / Amgen Inc.

On May 6, 2026 - Hartland & Co., LLC filed a 13F-HR form disclosing ownership of 50,221 shares of Amgen Inc. (CH:AMGN) valued at $17,670,200 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 35,547 shares of Amgen Inc.. This represents a change in shares of 41.28% 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)
2026-05-06 2026-03-31 13F AMGEN COM 031162100 50,221 14,674 41.28 17,670 51.88 0.1614
2026-02-09 2025-12-31 13F AMGEN COM 031162100 35,547 -252 -0.70 11,635 15.17 0.1467
2025-11-10 2025-09-30 13F AMGEN COM 031162100 35,799 129 0.36 10,102 1.44 0.1326
2025-08-08 2025-06-30 13F AMGEN COM 031162100 35,670 1,765 5.21 9,959 -5.71 0.1399
2025-05-13 2025-03-31 13F AMGEN COM 031162100 33,905 -313 -0.91 10,563 18.43 0.1639
2025-02-10 2024-12-31 13F AMGEN COM 031162100 34,218 -1,302 -3.67 8,919 -22.07 0.1353
2024-11-13 2024-09-30 13F AMGEN COM 031162100 35,520 2,690 8.19 11,445 11.57 0.1775
2024-08-12 2024-06-30 13F AMGEN COM 031162100 32,830 15,570 90.21 10,258 92.69 0.1750
2024-05-14 2024-03-31 13F AMGEN COM 031162100 17,260 -465 -2.62 5,324 4.27 0.2635
2024-02-12 2023-12-31 13F AMGEN COM 031162100 17,725 27 0.15 5,105 7.34 0.2709
2023-11-13 2023-09-30 13F/A-1 AMGEN COM 031162100 17,698 681 4.00 4,757 25.89 0.2922
2023-11-07 2023-09-30 13F AMGEN COM 031162100 17,968 951 4,829 0.2656
2023-08-07 2023-06-30 13F AMGEN COM 031162100 17,017 959 5.97 3,778 -2.68 0.2290
2023-05-09 2023-03-31 13F AMGEN COM 031162100 16,058 -220 -1.35 3,882 -9.19 0.2826
2023-02-14 2022-12-31 13F AMGEN COM 031162100 16,278 -464 -2.77 4,275 13.28 0.3349
2022-11-15 2022-09-30 13F AMGEN COM 031162100 16,742 -152 -0.90 3,774 -8.18 0.3477
2022-08-12 2022-06-30 13F AMGEN COM 031162100 16,894 132 0.79 4,110 1.41 0.3203
2022-05-04 2022-03-31 13F AMGEN COM 031162100 16,762 1,592 10.49 4,053 18.75 0.2750
2022-02-14 2021-12-31 13F AMGEN COM 031162100 15,170 9 0.06 3,413 5.86 0.2321
2021-11-12 2021-09-30 13F AMGEN COM 031162100 15,161 183 1.22 3,224 -11.70 0.2405
2021-08-12 2021-06-30 13F AMGEN COM 031162100 14,978 75 0.50 3,651 -1.54 0.2810
2021-05-14 2021-03-31 13F AMGEN COM 031162100 14,903 2,225 17.55 3,708 27.20 0.3089
2021-02-11 2020-12-31 13F AMGEN COM 031162100 12,678 207 1.66 2,915 -8.04 0.2651
2020-11-12 2020-09-30 13F AMGEN COM 031162100 12,471 -159 -1.26 3,170 6.41 0.3398
2020-08-11 2020-06-30 13F AMGEN COM 031162100 12,630 118 0.94 2,979 17.42 0.3445
2020-05-14 2020-03-31 13F AMGEN COM 031162100 12,512 0 0.00 2,537 -15.88 0.3694
2020-02-11 2019-12-31 13F AMGEN COM 031162100 12,512 1,629 14.97 3,016 43.21 0.3660
2019-11-12 2019-09-30 13F AMGEN COM 031162100 10,883 -19 -0.17 2,106 4.83 0.2818
2019-08-08 2019-06-30 13F AMGEN COM 031162100 10,902 585 5.67 2,009 2.50 0.2676
2019-05-14 2019-03-31 13F AMGEN COM 031162100 10,317 370 3.72 1,960 1.24 0.2703
2019-02-08 2018-12-31 13F AMGEN COM 031162100 9,947 -89 -0.89 1,936 -6.92 0.3015
2018-11-13 2018-09-30 13F AMGEN COM 031162100 10,036 200 2.03 2,080 14.54 0.2852
2018-08-07 2018-06-30 13F AMGEN COM 031162100 9,836 305 3.20 1,816 11.75 0.2590
2018-05-14 2018-03-31 13F AMGEN COM 031162100 9,531 0 0.00 1,625 -1.93 0.2355
2018-02-09 2017-12-31 13F AMGEN COM 031162100 9,531 -825 -7.97 1,657 -14.19 0.2246
2017-11-09 2017-09-30 13F AMGEN COM 031162100 10,356 -608 -5.55 1,931 2.28 0.2515
2017-08-03 2017-06-30 13F AMGEN COM 031162100 10,964 311 2.92 1,888 8.01 0.2758
2017-05-11 2017-03-31 13F AMGEN COM 031162100 10,653 1,414 15.30 1,748 29.39 0.2540
2017-02-10 2016-12-31 13F AMGEN COM 031162100 9,239 9,239 1,351 0.2186
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.