Amgen Inc.
CH ˙ SWX ˙ NL0000888691
SecurityCH:AMGN / Amgen Inc.
InstitutionTwin Capital Management Inc
Latest Disclosed Ownership15,910 shares
Latest Disclosed Value $ 5,597,934
Twin Capital Management Inc reports 8.81% increase in ownership of AMGN / Amgen Inc.

On May 5, 2026 - Twin Capital Management Inc filed a 13F-HR form disclosing ownership of 15,910 shares of Amgen Inc. (CH:AMGN) valued at $5,597,934 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 14,622 shares of Amgen Inc.. This represents a change in shares of 8.81% 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)
2026-05-05 2026-03-31 13F AMGEN COM 031162100 15,910 1,288 8.81 5,598 16.97 0.7217
2026-02-06 2025-12-31 13F AMGEN COM 031162100 14,622 -158 -1.07 4,786 14.75 0.5940
2025-11-05 2025-09-30 13F AMGEN COM 031162100 14,780 -5,541 -27.27 4,171 -26.49 0.5252
2025-08-06 2025-06-30 13F AMGEN COM 031162100 20,321 304 1.52 5,674 -9.03 0.6031
2025-05-05 2025-03-31 13F AMGEN COM 031162100 20,017 5,895 41.74 6,236 69.46 0.7275
2025-02-13 2024-12-31 13F AMGEN COM 031162100 14,122 23 0.16 3,681 -18.98 0.4031
2024-11-12 2024-09-30 13F AMGEN COM 031162100 14,099 -363 -2.51 4,543 0.53 0.5126
2024-08-14 2024-06-30 13F AMGEN COM 031162100 14,462 183 1.28 4,519 11.31 0.5326
2024-05-13 2024-03-31 13F AMGEN COM 031162100 14,279 -516 -3.49 4,060 -4.74 0.5032
2024-01-31 2023-12-31 13F AMGEN COM 031162100 14,795 9,779 194.96 4,261 216.10 0.5583
2023-11-13 2023-09-30 13F AMGEN COM 031162100 5,016 -27 -0.54 1,348 20.46 0.1936
2023-08-07 2023-06-30 13F AMGEN COM 031162100 5,043 1,564 44.96 1,120 33.06 0.1460
2023-05-08 2023-03-31 13F AMGEN COM 031162100 3,479 2,566 281.05 841 0.1149
2023-01-31 2022-12-31 13F AMGEN COM 031162100 913 913 0 0.0311
2022-08-02 2022-06-30 13F AMGEN COM 031162100 0 -11,927 -100.00 0 -100.00
2022-05-06 2022-03-31 13F AMGEN COM 031162100 11,927 53 0.45 2,884 7.97 0.3106
2022-02-07 2021-12-31 13F AMGEN COM 031162100 11,874 -3,757 -24.04 2,671 -19.65 0.2673
2021-10-29 2021-09-30 13F AMGEN COM 031162100 15,631 -2,159 -12.14 3,324 -23.34 0.3406
2021-08-09 2021-06-30 13F AMGEN COM 031162100 17,790 -3,234 -15.38 4,336 -17.11 0.3996
2021-05-06 2021-03-31 13F AMGEN COM 031162100 21,024 -2,990 -12.45 5,231 -5.25 0.5209
2021-02-11 2020-12-31 13F AMGEN COM 031162100 24,014 -1,257 -4.97 5,521 -14.04 0.5021
2020-11-05 2020-09-30 13F AMGEN COM 031162100 25,271 -564 -2.18 6,423 5.42 0.5814
2020-08-04 2020-06-30 13F AMGEN COM 031162100 25,835 -17,175 -39.93 6,093 -30.12 0.5866
2020-04-29 2020-03-31 13F AMGEN COM 031162100 43,010 -480 -1.10 8,719 -16.84 0.9457
2020-01-29 2019-12-31 13F AMGEN COM 031162100 43,490 -14,040 -24.40 10,484 -5.83 0.8865
2019-10-28 2019-09-30 13F AMGEN COM 031162100 57,530 -4,995 -7.99 11,133 -3.38 0.8057
2019-08-01 2019-06-30 13F AMGEN COM 031162100 62,525 -34,942 -35.85 11,522 -37.78 0.8019
2019-05-03 2019-03-31 13F AMGEN COM 031162100 97,467 157 0.16 18,517 -2.25 0.9125
2019-02-04 2018-12-31 13F AMGEN COM 031162100 97,310 -960 -0.98 18,943 -7.01 1.0675
2018-11-07 2018-09-30 13F AMGEN COM 031162100 98,270 -1,742 -1.74 20,370 10.34 0.9359
2018-08-13 2018-06-30 13F AMGEN COM 031162100 100,012 6,062 6.45 18,461 15.26 0.9270
2018-05-01 2018-03-31 13F AMGEN COM 031162100 93,950 -12,011 -11.34 16,017 -13.07 0.8268
2018-01-29 2017-12-31 13F AMGEN COM 031162100 105,961 11,877 12.62 18,426 5.04 0.9048
2017-11-09 2017-09-30 13F AMGEN COM 031162100 94,084 16,039 20.55 17,542 30.50 0.9208
2017-08-07 2017-06-30 13F AMGEN COM 031162100 78,045 4,350 5.90 13,442 11.17 0.7922
2017-05-08 2017-03-31 13F AMGEN COM 031162100 73,695 -1,420 -1.89 12,091 10.09 0.7486
2017-02-07 2016-12-31 13F AMGEN COM 031162100 75,115 -300 -0.40 10,983 -12.69 0.7069
2016-11-14 2016-09-30 13F AMGEN COM 031162100 75,415 11,248 17.53 12,580 28.85 0.8419
2016-08-08 2016-06-30 13F AMGEN COM 031162100 64,167 9,212 16.76 9,763 18.50 0.7331
2016-05-11 2016-03-31 13F AMGEN COM 031162100 54,955 7,970 16.96 8,239 8.02 0.6384
2016-02-09 2015-12-31 13F AMGEN COM 031162100 46,985 4,780 11.33 7,627 30.64 0.6254
2015-11-12 2015-09-30 13F AMGEN COM 031162100 42,205 750 1.81 5,838 -8.27 0.5535
2015-07-30 2015-06-30 13F AMGEN COM 031162100 41,455 25,690 162.96 6,364 152.54 0.5702
2015-05-12 2015-03-31 13F AMGEN COM 031162100 15,765 7,910 100.70 2,520 101.44 0.2208
2015-02-09 2014-12-31 13F AMGEN COM 031162100 7,855 5,630 253.03 1,251 299.68 0.1194
2014-11-10 2014-09-30 13F AMGEN COM 031162100 2,225 0 0.00 313 19.01 0.0317
2014-07-29 2014-06-30 13F AMGEN COM 031162100 2,225 2,225 263 -71.35 0.0264
2014-05-13 2014-03-31 13F AMGEN COM 031162100 0 -25,675 -100.00 918 -68.66 0.0968
2014-02-07 2013-12-31 13F AMGEN COM 031162100 25,675 -15,730 -37.99 2,929 -36.79 0.3133
2013-11-06 2013-09-30 13F AMGEN COM 031162100 41,405 41,405 4,634 -28.70 0.4953
2013-08-12 2013-06-30 13F AMGEN COM 031162100 0 0 6,499 0.6909
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.