Amgen Inc.
GB ˙ BATS-CHIXE ˙ NL0000888691
SecurityGB:AMGD / Amgen Inc.
InstitutionSectoral Asset Management Inc
Latest Disclosed Ownership9,210 shares
Latest Disclosed Value $ 3,514,982
Sectoral Asset Management Inc reports 29.53% decrease in ownership of AMGD / Amgen Inc.

On May 15, 2026 - Sectoral Asset Management Inc filed a 13F-HR form disclosing ownership of 9,210 shares of Amgen Inc. (GB:AMGD) valued at $3,514,982 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 13,070 shares of Amgen Inc.. This represents a change in shares of -29.53% 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 9,210 -3,860 -29.53 3,515 -17.84 2.9115
2026-02-09 2025-12-31 13F AMGEN COM 031162100 13,070 2,730 26.40 4,278 46.62 3.4291
2025-11-14 2025-09-30 13F AMGEN COM 031162100 10,340 -930 -8.25 2,918 -7.28 1.8010
2025-08-14 2025-06-30 13F AMGEN COM 031162100 11,270 885 8.52 3,147 -2.75 2.0776
2025-05-15 2025-03-31 13F AMGEN COM 031162100 10,385 -2,165 -17.25 3,235 -1.10 2.5183
2025-02-14 2024-12-31 13F AMGEN COM 031162100 12,550 5,460 77.01 3,271 43.21 2.1833
2024-11-14 2024-09-30 13F AMGEN COM 031162100 7,090 -7,610 -51.77 2,284 -50.27 1.3494
2024-08-13 2024-06-30 13F AMGEN COM 031162100 14,700 -1,385 -8.61 4,593 0.44 1.8666
2024-05-14 2024-03-31 13F AMGEN COM 031162100 16,085 -12,600 -43.93 4,573 -44.64 1.7978
2024-02-14 2023-12-31 13F AMGEN COM 031162100 28,685 620 2.21 8,262 9.53 3.5577
2023-11-14 2023-09-30 13F AMGEN COMMON 031162100 28,065 -204 -0.72 7,543 20.17 1.4688
2023-08-11 2023-06-30 13F AMGEN COM 031162100 28,269 6,349 28.96 6,276 18.44 1.0464
2023-05-12 2023-03-31 13F AMGEN COM 031162100 21,920 4,000 22.32 5,299 12.60 1.0185
2023-02-10 2022-12-31 13F AMGEN COM 031162100 17,920 1,700 10.48 4,707 28.72 0.9107
2022-11-10 2022-09-30 13F AMGEN COM 031162100 16,220 -70 -0.43 3,656 -7.75 0.7203
2022-08-15 2022-06-30 13F AMGEN COM 031162100 16,290 5,140 46.10 3,963 47.00 0.7985
2022-05-10 2022-03-31 13F AMGEN COM 031162100 11,150 -803 -6.72 2,696 0.26 0.4786
2022-02-11 2021-12-31 13F AMGEN COM 031162100 11,953 -1,200 -9.12 2,689 -3.86 0.4047
2021-11-15 2021-09-30 13F AMGEN COM 031162100 13,153 0 0.00 2,797 -12.76 0.2326
2021-08-16 2021-06-30 13F AMGEN COM 031162100 13,153 -8,150 -38.26 3,206 -39.51 0.2594
2021-05-14 2021-03-31 13F AMGEN COM 031162100 21,303 -1,150 -5.12 5,300 2.67 0.4018
2021-02-12 2020-12-31 13F AMGEN COM 031162100 22,453 -1,900 -7.80 5,162 -16.61 0.3638
2020-11-13 2020-09-30 13F AMGEN COM 031162100 24,353 -5,600 -18.70 6,190 -12.38 0.5322
2020-08-13 2020-06-30 13F AMGEN COM 031162100 29,953 15,550 107.96 7,065 141.95 0.6485
2020-05-13 2020-03-31 13F AMGEN COM 031162100 14,403 -2,000 -12.19 2,920 -26.15 0.5605
2020-02-12 2019-12-31 13F AMGEN COM 031162100 16,403 16,403 3,954 0.5900
2016-08-12 2016-06-30 13F AMGEN COMMON 031162100 0 -682,797 -100.00 0 -100.00
2016-05-13 2016-03-31 13F AMGEN COMMON 031162100 682,797 178,200 35.32 102,372 24.98 4.9498
2016-02-12 2015-12-31 13F AMGEN COMMON 031162100 504,597 -50,100 -9.03 81,911 6.76 3.4925
2015-11-13 2015-09-30 13F AMGEN COMMON 031162100 554,697 -11,800 -2.08 76,726 -11.78 3.5148
2015-08-13 2015-06-30 13F AMGEN COMMON 031162100 566,497 -97,078 -14.63 86,969 -18.01 3.6275
2015-05-14 2015-03-31 13F AMGEN COMMON 031162100 663,575 -230,898 -25.81 106,072 -25.55 4.0278
2015-02-13 2014-12-31 13F AMGEN COMMON 031162100 894,473 -282,728 -24.02 142,481 -13.83 6.3909
2014-11-13 2014-09-30 13F AMGEN COM 031162100 1,177,201 -17,964 -1.50 165,350 16.88 6.9584
2014-08-14 2014-06-30 13F AMGEN COMMON 031162100 1,195,165 -209,897 -14.94 141,472 -18.37 5.9944
2014-05-14 2014-03-31 13F AMGEN COMMON 031162100 1,405,062 142,429 11.28 173,300 20.31 7.1286
2014-02-12 2013-12-31 13F AMGEN COMMON 031162100 1,262,633 -20,359 -1.59 144,041 0.31 6.2117
2013-11-13 2013-09-30 13F AMGEN COMMON 031162100 1,282,992 382,473 42.47 143,599 61.63 6.9093
2013-08-12 2013-06-30 13F AMGEN COMMON 031162100 900,519 900,519 88,845 2.6272
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.