Amgen Inc.
CH ˙ SWX ˙ NL0000888691
SecurityCH:AMGN / Amgen Inc.
InstitutionBaxter Bros Inc
Latest Disclosed Ownership2,081 shares
Latest Disclosed Value $ 732,200
Baxter Bros Inc ownership in AMGN / Amgen Inc.

On April 28, 2026 - Baxter Bros Inc filed a 13F-HR form disclosing ownership of 2,081 shares of Amgen Inc. (CH:AMGN) valued at $732,200 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 2,081 shares of Amgen Inc.. This represents a change in shares of 0.00% 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)
2026-04-28 2026-03-31 13F AMGEN COM 031162100 2,081 0 0.00 732 7.49 0.0904
2026-01-26 2025-12-31 13F AMGEN COM 031162100 2,081 -115 -5.24 681 10.02 0.0788
2025-10-14 2025-09-30 13F AMGEN COM 031162100 2,196 -100 -4.36 620 -3.43 0.0716
2025-07-24 2025-06-30 13F AMGEN COM 031162100 2,296 -200 -8.01 641 -17.50 0.0784
2025-04-09 2025-03-31 13F AMGEN COM 031162100 2,496 -50 -1.96 778 17.19 0.1024
2025-02-12 2024-12-31 13F AMGEN COM 031162100 2,546 -42 -1.62 664 -20.41 0.0868
2024-10-29 2024-09-30 13F AMGEN COM 031162100 2,588 0 0.00 834 3.09 0.1084
2024-07-15 2024-06-30 13F AMGEN COM 031162100 2,588 -365 -12.36 809 -3.69 0.1058
2024-04-29 2024-03-31 13F AMGEN COM 031162100 2,953 30 1.03 840 -0.24 0.1077
2024-05-17 2023-12-31 13F/A-1 AMGEN COM 031162100 2,923 45 1.56 842 8.80 0.1166
2024-02-06 2023-12-31 13F Amgen COM 031162100 2,923 45 842 0.1190
2024-05-17 2023-09-30 13F/A-1 AMGEN COM 031162100 2,878 25 0.88 773 22.12 0.1174
2023-10-23 2023-09-30 13F Amgen COM 031162100 2,878 25 773 0.1189
2023-08-14 2023-06-30 13F Amgen COM 031162100 2,853 -7 -0.24 633 -8.39 0.0942
2023-05-15 2023-03-31 13F Amgen COM 031162100 2,860 -20 -0.69 691 -8.60 0.1087
2023-02-01 2022-12-31 13F Amgen COM 031162100 2,880 -38 -1.30 756 14.89 0.1243
2022-11-14 2022-09-30 13F Amgen COM 031162100 2,918 -139 -4.55 658 -11.56 0.1166
2022-07-25 2022-06-30 13F Amgen COM 031162100 3,057 -18 -0.59 744 0.00 0.1335
2022-04-20 2022-03-31 13F Amgen COM 031162100 3,075 -65 -2.07 744 5.38 0.1117
2022-01-14 2021-12-31 13F Amgen COM 031162100 3,140 -70 -2.18 706 3.37 0.1023
2021-10-25 2021-09-30 13F Amgen COM 031162100 3,210 -205 -6.00 683 -17.91 0.1093
2021-08-11 2021-06-30 13F Amgen COM 031162100 3,415 -89 -2.54 832 -4.59 0.1318
2021-04-23 2021-03-31 13F Amgen COM 031162100 3,504 611 21.12 872 31.13 0.1498
2021-01-25 2020-12-31 13F Amgen COM 031162100 2,893 76 2.70 665 -7.12 0.1260
2020-11-05 2020-09-30 13F Amgen COM 031162100 2,817 -554 -16.43 716 -9.94 0.1548
2020-07-31 2020-06-30 13F Amgen COM 031162100 3,371 -216 -6.02 795 9.35 0.1866
2020-04-17 2020-03-31 13F Amgen COM 031162100 3,587 -125 -3.37 727 -18.77 0.1883
2020-01-10 2019-12-31 13F/A-20 Amgen COM 031162100 3,712 1 0.03 895 24.65 0.1863
2020-01-09 2019-12-31 13F Amgen COM 031162100 2,013 -1,698 321 114,101.6891
2019-10-21 2019-09-30 13F Amgen COM 031162100 3,711 -160 -4.13 718 0.70 0.1625
2019-07-29 2019-06-30 13F Amgen COM 031162100 3,871 -76 -1.93 713 -4.93 0.1629
2019-04-22 2019-03-31 13F Amgen COM 031162100 3,947 -39 -0.98 750 -3.35 0.1752
2019-01-22 2018-12-31 13F Amgen COM 031162100 3,986 3 0.08 776 -6.05 0.2105
2018-10-11 2018-09-30 13F Amgen COM 031162100 3,983 75 1.92 826 14.56 0.1982
2018-07-17 2018-06-30 13F Amgen COM 031162100 3,908 361 10.18 721 19.17 0.1938
2018-05-16 2018-03-31 13F Amgen COM 031162100 3,547 -135 -3.67 605 -5.47 0.1650
2018-02-01 2017-12-31 13F Amgen COM 031162100 3,682 203 5.84 640 -1.39 0.1754
2017-10-16 2017-09-30 13F Amgen COM 031162100 3,479 -250 -6.70 649 1.09 0.1865
2017-08-01 2017-06-30 13F Amgen COM 031162100 3,729 280 8.12 642 13.43 0.1933
2017-04-24 2017-03-31 13F Amgen COM 031162100 3,449 -255 -6.88 566 4.43 0.1770
2017-01-19 2016-12-31 13F Amgen COM 031162100 3,704 -50 -1.33 542 -13.42 0.1745
2016-10-20 2016-09-30 13F Amgen COM 031162100 3,754 -600 -13.78 626 -5.44 0.2116
2016-07-07 2016-06-30 13F Amgen COM 031162100 4,354 -334 -7.12 662 -13.01 0.2315
2016-02-08 2015-12-31 13F Amgen COM 031162100 4,688 2,085 80.10 761 90.25 0.2820
2015-10-05 2015-09-30 13F Amgen COM 031162100 2,603 0 0.00 400 0.00 0.1469
2015-07-07 2015-06-30 13F Amgen COM 031162100 2,603 190 7.87 400 3.63 0.1467
2015-04-16 2015-03-31 13F Amgen COM 031162100 2,413 400 19.87 386 20.25 0.1404
2015-01-22 2014-12-31 13F Amgen COM 031162100 2,013 580 40.47 321 59.70 0.1162
2014-11-04 2014-09-30 13F Amgen COM 031162100 1,433 1,433 201 0.0782
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.