Amgen Inc.
CH ˙ SWX ˙ NL0000888691
SecurityCH:AMGN / Amgen Inc.
InstitutionConnable Office Inc
Latest Disclosed Ownership5,632 shares
Latest Disclosed Value $ 1,981,619
Connable Office Inc reports 2.27% decrease in ownership of AMGN / Amgen Inc.

On April 29, 2026 - Connable Office Inc filed a 13F-HR form disclosing ownership of 5,632 shares of Amgen Inc. (CH:AMGN) valued at $1,981,619 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 5,763 shares of Amgen Inc.. This represents a change in shares of -2.27% 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)
2026-04-29 2026-03-31 13F Amgen Com 031162100 5,632 -131 -2.27 1,982 5.04 0.1950
2026-02-03 2025-12-31 13F Amgen Com 031162100 5,763 -3 -0.05 1,886 15.92 0.1729
2025-11-06 2025-09-30 13F Amgen Com 031162100 5,766 -40 -0.69 1,627 0.37 0.1509
2025-08-05 2025-06-30 13F Amgen Com 031162100 5,806 149 2.63 1,621 -8.00 0.1604
2025-05-09 2025-03-31 13F Amgen Com 031162100 5,657 -27 -0.48 1,762 18.97 0.1876
2025-02-05 2024-12-31 13F Amgen Com 031162100 5,684 -1,288 -18.47 1,481 -34.06 0.1533
2024-11-06 2024-09-30 13F Amgen Com 031162100 6,972 37 0.53 2,246 3.69 0.2261
2024-08-07 2024-06-30 13F Amgen Com 031162100 6,935 -1,679 -19.49 2,167 -11.56 0.2332
2024-04-30 2024-03-31 13F Amgen Com 031162100 8,614 -1,821 -17.45 2,449 -18.50 0.2775
2024-02-12 2023-12-31 13F Amgen Com 031162100 10,435 -49 -0.47 3,005 6.67 0.3637
2023-11-08 2023-09-30 13F Amgen Com 031162100 10,484 -2,217 -17.46 2,818 -0.07 0.3871
2023-08-07 2023-06-30 13F Amgen Com 031162100 12,701 -237 -1.83 2,820 -9.85 0.3868
2023-04-17 2023-03-31 13F Amgen Com 031162100 12,938 -124 -0.95 3,128 104,133.33 0.4545
2023-01-23 2022-12-31 13F Amgen Com 031162100 13,062 0 0.00 3 -99.90 0.4914
2022-10-26 2022-09-30 13F Amgen Com 031162100 13,062 -59 -0.45 2,944 -7.77 0.4783
2022-08-01 2022-06-30 13F Amgen Com 031162100 13,121 2,026 18.26 3,192 18.97 0.4883
2022-05-12 2022-03-31 13F Amgen Com 031162100 11,095 -10 -0.09 2,683 7.41 0.3582
2022-02-14 2021-12-31 13F Amgen Com 031162100 11,105 -218 -1.93 2,498 3.74 0.3178
2021-11-09 2021-09-30 13F Amgen Com 031162100 11,323 -912 -7.45 2,408 -19.25 0.3494
2021-08-06 2021-06-30 13F Amgen Com 031162100 12,235 -17 -0.14 2,982 -2.17 0.4133
2021-05-07 2021-03-31 13F Amgen Com 031162100 12,252 -307 -2.44 3,048 5.54 0.4431
2021-02-09 2020-12-31 13F Amgen Com 031162100 12,559 0 0.00 2,888 -9.52 0.4437
2020-11-10 2020-09-30 13F Amgen Com 031162100 12,559 393 3.23 3,192 11.26 0.5966
2020-08-10 2020-06-30 13F Amgen Com 031162100 12,166 -2,643 -17.85 2,869 -4.43 0.5641
2020-05-08 2020-03-31 13F Amgen Com 031162100 14,809 -10 -0.07 3,002 -15.96 0.7174
2020-02-07 2019-12-31 13F Amgen Com 031162100 14,819 -88 -0.59 3,572 23.81 0.6123
2019-11-12 2019-09-30 13F Amgen Com 031162100 14,907 -59 -0.39 2,885 4.60 0.5200
2019-08-06 2019-06-30 13F Amgen Com 031162100 14,966 -54 -0.36 2,758 -3.33 0.5068
2019-05-07 2019-03-31 13F Amgen Com 031162100 15,020 42 0.28 2,853 -2.16 0.5537
2019-02-12 2018-12-31 13F Amgen Com 031162100 14,978 -446 -2.89 2,916 -8.79 0.6445
2018-11-06 2018-09-30 13F Amgen Com 031162100 15,424 993 6.88 3,197 20.01 0.6137
2018-08-07 2018-06-30 13F Amgen Com 031162100 14,431 11 0.08 2,664 8.38 0.5399
2018-05-08 2018-03-31 13F Amgen Com 031162100 14,420 878 6.48 2,458 4.37 0.4832
2018-02-07 2017-12-31 13F Amgen Com 031162100 13,542 -732 -5.13 2,355 -11.50 0.4583
2017-11-03 2017-09-30 13F Amgen Com 031162100 14,274 -500 -3.38 2,661 4.56 0.5440
2017-08-01 2017-06-30 13F Amgen Com 031162100 14,774 -333 -2.20 2,545 2.66 0.5573
2017-05-04 2017-03-31 13F Amgen Com 031162100 15,107 2,245 17.45 2,479 31.79 0.5590
2017-02-08 2016-12-31 13F Amgen Com 031162100 12,862 -181 -1.39 1,881 -13.56 0.4318
2016-11-08 2016-09-30 13F Amgen Com 031162100 13,043 -167 -1.26 2,176 8.26 0.5189
2016-08-04 2016-06-30 13F Amgen Com 031162100 13,210 -228 -1.70 2,010 -0.25 0.5611
2016-05-09 2016-03-31 13F Amgen Com 031162100 13,438 0 0.00 2,015 -7.61 0.5580
2016-02-11 2015-12-31 13F Amgen Com 031162100 13,438 -21 -0.16 2,181 17.13 0.6274
2015-11-12 2015-09-30 13F Amgen Com 031162100 13,459 -1,881 -12.26 1,862 -20.93 0.5524
2015-08-05 2015-06-30 13F Amgen Com 031162100 15,340 -204 -1.31 2,355 -5.23 0.6290
2015-04-30 2015-03-31 13F Amgen Com 031162100 15,544 -17 -0.11 2,485 0.24 0.6353
2015-02-10 2014-12-31 13F Amgen Com 031162100 15,561 -9,065 -36.81 2,479 -28.33 0.6677
2014-11-12 2014-09-30 13F Amgen Com 031162100 24,626 0 0.00 3,459 18.66 0.9079
2014-07-22 2014-06-30 13F Amgen Com 031162100 24,626 -276 -1.11 2,915 -5.08 0.7520
2014-05-06 2014-03-31 13F Amgen Com 031162100 24,902 -272 -1.08 3,071 6.93 0.8351
2014-01-13 2013-12-31 13F Amgen Com 031162100 25,174 -201 -0.79 2,872 1.13 0.7782
2013-10-24 2013-09-30 13F Amgen Com 031162100 25,375 -29 -0.11 2,840 13.33 0.7993
2013-07-23 2013-06-30 13F Amgen Com 031162100 25,404 25,404 2,506 0.7147
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.