Amgen Inc.
CH ˙ SWX ˙ NL0000888691
SecurityCH:AMGN / Amgen Inc.
InstitutionPrivate Trust Co Na
Latest Disclosed Ownership11,316 shares
Latest Disclosed Value $ 3,981,490
Private Trust Co Na reports 14.20% increase in ownership of AMGN / Amgen Inc.

On April 30, 2026 - Private Trust Co Na filed a 13F-HR form disclosing ownership of 11,316 shares of Amgen Inc. (CH:AMGN) valued at $3,981,490 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 9,909 shares of Amgen Inc.. This represents a change in shares of 14.20% 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)
2026-04-30 2026-03-31 13F Amgen Com 031162100 11,316 1,407 14.20 3,981 22.76 0.3555
2026-01-26 2025-12-31 13F Amgen Com 031162100 9,909 -318 -3.11 3,243 12.37 0.2841
2025-10-15 2025-09-30 13F Amgen Com 031162100 10,227 312 3.15 2,886 4.26 0.2545
2025-07-29 2025-06-30 13F Amgen Com 031162100 9,915 216 2.23 2,768 -8.37 0.2636
2025-04-28 2025-03-31 13F Amgen Com 031162100 9,699 -256 -2.57 3,022 16.46 0.3109
2025-02-05 2024-12-31 13F Amgen Com 031162100 9,955 560 5.96 2,595 -14.30 0.2664
2024-11-13 2024-09-30 13F Amgen Com 031162100 9,395 -206 -2.15 3,027 0.93 0.3050
2024-07-23 2024-06-30 13F Amgen Com 031162100 9,601 798 9.07 3,000 19.86 0.3230
2024-04-24 2024-03-31 13F Amgen Com 031162100 8,803 1,118 14.55 2,503 13.06 0.2703
2024-01-24 2023-12-31 13F Amgen Com 031162100 7,685 61 0.80 2,213 8.06 0.2600
2023-10-18 2023-09-30 13F Amgen Com 031162100 7,624 -213 -2.72 2,049 17.77 0.2703
2023-07-28 2023-06-30 13F Amgen Com 031162100 7,837 293 3.88 1,740 -4.61 0.2194
2023-04-12 2023-03-31 13F Amgen Com 031162100 7,544 437 6.15 1,824 182,200.00 0.2486
2023-01-18 2022-12-31 13F Amgen Com 031162100 7,107 -169 -2.32 2 -99.94 0.2769
2022-10-17 2022-09-30 13F Amgen Com 031162100 7,276 112 1.56 1,640 -5.91 0.2664
2022-09-16 2022-06-30 13F/A-1 Amgen Com 031162100 7,164 -798 -10.02 1,743 -9.50 0.2707
2022-07-13 2022-06-30 13F Amgen Equities 031162100 7,962 0 1,926 0.3008
2022-04-12 2022-03-31 13F Amgen Equities 031162100 7,962 11 0.14 1,926 7.66 0.3008
2022-01-10 2021-12-31 13F Amgen Equities 031162100 7,951 -4,390 -35.57 1,789 -31.85 0.2470
2021-10-06 2021-09-30 13F Amgen Equities 031162100 12,341 390 3.26 2,625 -9.89 0.3821
2021-07-07 2021-06-30 13F Amgen Equities 031162100 11,951 -189 -1.56 2,913 -3.54 0.4413
2021-04-06 2021-03-31 13F Amgen Equities 031162100 12,140 73 0.60 3,020 8.87 0.4905
2021-01-05 2020-12-31 13F Amgen Equities 031162100 12,067 500 4.32 2,774 -5.65 0.4672
2020-10-01 2020-09-30 13F Amgen Equities 031162100 11,567 81 0.71 2,940 -0.10 0.5672
2020-07-07 2020-06-30 13F Amgen Equities 031162100 11,486 318 2.85 2,943 29.99 0.6171
2020-04-07 2020-03-31 13F Amgen Equities 031162100 11,168 -10 -0.09 2,264 -15.96 0.5859
2020-01-02 2019-12-31 13F Amgen Equities 031162100 11,178 5,214 87.42 2,694 133.45 0.4998
2019-10-01 2019-09-30 13F Amgen Equities 031162100 5,964 286 5.04 1,154 10.33 0.2275
2019-07-02 2019-06-30 13F Amgen Equities 031162100 5,678 104 1.87 1,046 -1.23 0.2109
2019-04-02 2019-03-31 13F Amgen Equities 031162100 5,574 -239 -4.11 1,059 -6.37 0.2203
2019-01-03 2018-12-31 13F Amgen Equities 031162100 5,813 -51 -0.87 1,131 -6.91 0.2686
2018-10-09 2018-09-30 13F Amgen Equities 031162100 5,864 -92 -1.54 1,215 10.56 0.2479
2018-07-03 2018-06-30 13F Amgen Equities 031162100 5,956 -2,578 -30.21 1,099 -24.47 0.2382
2018-04-03 2018-03-31 13F Amgen Equities 031162100 8,534 1,195 16.28 1,455 14.03 0.3180
2018-01-16 2017-12-31 13F Amgen Equities 031162100 7,339 433 6.27 1,276 -0.85 0.2700
2017-10-12 2017-09-30 13F Amgen Equities 031162100 6,906 -272 -3.79 1,287 4.13 0.2801
2017-07-11 2017-06-30 13F Amgen Equities 031162100 7,178 86 1.21 1,236 6.28 0.2695
2017-04-13 2017-03-31 13F Amgen Equities 031162100 7,092 999 16.40 1,163 30.67 0.2688
2017-01-17 2016-12-31 13F Amgen Equities 031162100 6,093 2,457 67.57 890 46.86 0.2131
2016-10-13 2016-09-30 13F Amgen Equities 031162100 3,636 488 15.50 606 26.78 0.1477
2016-07-19 2016-06-30 13F Amgen Equities 031162100 3,148 -88 -2.72 478 -1.44 0.1243
2016-04-18 2016-03-31 13F Amgen Equities 031162100 3,236 58 1.83 485 -5.83 0.1314
2016-01-19 2015-12-31 13F Amgen Equities 031162100 3,178 -3,296 -50.91 515 -42.46 0.1467
2015-10-27 2015-09-30 13F Amgen Equities 031162100 6,474 374 6.13 895 -4.38 0.2681
2015-07-10 2015-06-30 13F Amgen Equities 031162100 6,100 -105 -1.69 936 -5.55 0.2683
2015-04-09 2015-03-31 13F Amgen Equities 031162100 6,205 6,205 0.00 991 0.2838
2015-01-28 2014-12-31 13F Amgen Com 031162100 0 -3,344 -100.00 0 -100.00
2014-10-09 2014-09-30 13F Amgen Com 031162100 3,344 66 2.01 470 21.13 0.1596
2014-07-22 2014-06-30 13F Amgen Com 031162100 3,278 -130 -3.81 388 -7.62 0.1263
2014-04-07 2014-03-31 13F Amgen Com 031162100 3,408 -15 -0.44 420 7.69 0.1584
2014-01-08 2013-12-31 13F Amgen Com 031162100 3,423 136 4.14 390 5.98 0.1569
2013-10-07 2013-09-30 13F Amgen Com 031162100 3,287 -2,446 -42.67 368 -34.98 0.1665
2013-08-01 2013-06-30 13F Amgen Com 031162100 5,733 0 0.00 566 0.00 0.2599
2013-07-26 2013-03-31 13F Amgen Com 031162100 5,733 5,733 566 0.2599
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.