Amgen Inc.
CH ˙ SWX ˙ NL0000888691
SecurityCH:AMGN / Amgen Inc.
InstitutionPatten & Patten Inc/tn
Latest Disclosed Ownership3,146 shares
Latest Disclosed Value $ 1,107,087
Patten & Patten Inc/tn reports 1.69% decrease in ownership of AMGN / Amgen Inc.

On May 1, 2026 - Patten & Patten Inc/tn filed a 13F-HR form disclosing ownership of 3,146 shares of Amgen Inc. (CH:AMGN) valued at $1,107,087 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 3,200 shares of Amgen Inc.. This represents a change in shares of -1.69% 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)
2026-05-01 2026-03-31 13F AMGEN COM 031162100 3,146 -54 -1.69 1,107 5.73 0.0668
2026-02-03 2025-12-31 13F AMGEN COM 031162100 3,200 222 7.45 1,047 24.64 0.0615
2025-10-31 2025-09-30 13F AMGEN COM 031162100 2,978 -147 -4.70 840 -3.67 0.0494
2025-07-28 2025-06-30 13F AMGEN COM 031162100 3,125 -88 -2.74 873 -12.89 0.0565
2025-05-07 2025-03-31 13F AMGEN COM 031162100 3,213 201 6.67 1,001 27.52 0.0670
2025-02-10 2024-12-31 13F AMGEN COM 031162100 3,012 65 2.21 785 -17.28 0.0519
2024-11-04 2024-09-30 13F AMGEN COM 031162100 2,947 -59 -1.96 950 1.06 0.0630
2024-08-13 2024-06-30 13F AMGEN COM 031162100 3,006 -98 -3.16 939 6.46 0.0657
2024-05-10 2024-03-31 13F AMGEN COM 031162100 3,104 136 4.58 883 3.28 0.0629
2024-01-23 2023-12-31 13F Amgen COM 031162100 2,968 133 4.69 855 12.07 0.0702
2023-10-27 2023-09-30 13F Amgen COM 031162100 2,835 -198 -6.53 762 13.22 0.0669
2023-07-14 2023-06-30 13F Amgen COM 031162100 3,033 -328 -9.76 673 -17.12 0.0557
2023-04-25 2023-03-31 13F Amgen COM 031162100 3,361 -48 -1.41 812 0.0714
2023-02-01 2022-12-31 13F Amgen COM 031162100 3,409 -298 -8.04 1 -100.00 0.0812
2022-10-19 2022-09-30 13F Amgen COM 031162100 3,707 -8 -0.22 836 -7.52 0.0793
2022-08-02 2022-06-30 13F Amgen COM 031162100 3,715 -223 -5.66 904 -5.04 0.0794
2022-04-25 2022-03-31 13F Amgen COM 031162100 3,938 -16 -0.40 952 6.97 0.0695
2022-01-26 2021-12-31 13F Amgen COM 031162100 3,954 20 0.51 890 6.33 0.0615
2021-10-22 2021-09-30 13F Amgen COM 031162100 3,934 -632 -13.84 837 -24.80 0.0637
2021-07-13 2021-06-30 13F Amgen COM 031162100 4,566 893 24.31 1,113 21.77 0.0848
2021-04-23 2021-03-31 13F Amgen COM 031162100 3,673 135 3.82 914 12.29 0.0747
2021-01-19 2020-12-31 13F Amgen COM 031162100 3,538 201 6.02 814 -4.01 0.0709
2020-10-08 2020-09-30 13F Amgen COM 031162100 3,337 -98 -2.85 848 4.69 0.0845
2020-07-21 2020-06-30 13F Amgen COM 031162100 3,435 164 5.01 810 22.17 0.0886
2020-04-16 2020-03-31 13F Amgen COM 031162100 3,271 -332 -9.21 663 -23.62 0.0874
2020-01-13 2019-12-31 13F Amgen COM 031162100 3,603 546 17.86 868 46.62 0.0873
2019-10-15 2019-09-30 13F Amgen COM 031162100 3,057 716 30.59 592 37.35 0.0647
2019-07-11 2019-06-30 13F Amgen COM 031162100 2,341 -246 -9.51 431 -12.22 0.0466
2019-04-23 2019-03-31 13F Amgen COM 031162100 2,587 50 1.97 491 -0.61 0.0539
2019-01-17 2018-12-31 13F Amgen COM 031162100 2,537 -234 -8.44 494 -13.94 0.0606
2018-10-17 2018-09-30 13F Amgen COM 031162100 2,771 -73 -2.57 574 9.33 0.0568
2018-07-18 2018-06-30 13F Amgen COM 031162100 2,844 2 0.07 525 8.25 0.0539
2018-04-20 2018-03-31 13F Amgen COM 031162100 2,842 -199 -6.54 485 -8.32 0.0496
2018-01-22 2017-12-31 13F Amgen COM 031162100 3,041 -99 -3.15 529 -9.57 0.0529
2017-10-12 2017-09-30 13F Amgen COM 031162100 3,140 -923 -22.72 585 -16.43 0.0616
2017-07-19 2017-06-30 13F Amgen COM 031162100 4,063 800 24.52 700 30.84 0.0774
2017-04-19 2017-03-31 13F Amgen COM 031162100 3,263 413 14.49 535 28.30 0.0616
2017-01-27 2016-12-31 13F Amgen COM 031162100 2,850 18 0.64 417 -11.65 0.0513
2016-10-12 2016-09-30 13F Amgen COM 031162100 2,832 38 1.36 472 11.06 0.0608
2016-07-07 2016-06-30 13F Amgen COM 031162100 2,794 -111 -3.82 425 -2.52 0.0588
2016-04-15 2016-03-31 13F Amgen COM 031162100 2,905 -650 -18.28 436 -24.44 0.0623
2016-02-29 2015-12-31 13F Amgen COM 031162100 3,555 0 0.00 577 17.28 0.0798
2015-10-22 2015-09-30 13F Amgen COM 031162100 3,555 302 9.28 492 -1.40 0.0751
2015-08-31 2015-06-30 13F Amgen COM 031162100 3,253 105 3.34 499 -0.80 0.0724
2015-04-16 2015-03-31 13F Amgen COM 031162100 3,148 50 1.61 503 2.03 0.0724
2015-01-21 2014-12-31 13F Amgen COM 031162100 3,098 1,500 93.87 493 120.09 0.0745
2014-10-14 2014-09-30 13F Amgen COM 031162100 1,598 -200 -11.12 224 0.90 0.0356
2014-04-24 2014-03-31 13F Amgen COM 031162100 1,798 0 0.00 222 8.29 0.0300
2014-01-15 2013-12-31 13F Amgen COM 031162100 1,798 1,798 205 0.0286
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.