Amgen Inc.
CH ˙ SWX ˙ NL0000888691
SecurityCH:AMGN / Amgen Inc.
InstitutionJohn G Ullman & Associates Inc
Latest Disclosed Ownership2,125 shares
Latest Disclosed Value $ 747,681
John G Ullman & Associates Inc reports 75.85% decrease in ownership of AMGN / Amgen Inc.

On May 6, 2026 - John G Ullman & Associates Inc filed a 13F-HR form disclosing ownership of 2,125 shares of Amgen Inc. (CH:AMGN) valued at $747,681 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 8,800 shares of Amgen Inc.. This represents a change in shares of -75.85% 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)
2026-05-06 2026-03-31 13F AMGEN COM 031162100 2,125 -6,675 -75.85 748 -74.06 0.0991
2026-02-05 2025-12-31 13F AMGEN COM 031162100 8,800 -200 -2.22 2,880 13.43 0.3841
2025-11-05 2025-09-30 13F AMGEN COM 031162100 9,000 -71 -0.78 2,540 0.28 0.3420
2025-07-29 2025-06-30 13F AMGEN COM 031162100 9,071 -219 -2.36 2,533 -12.51 0.3759
2025-05-06 2025-03-31 13F AMGEN COM 031162100 9,290 -80 -0.85 2,894 18.51 0.4464
2025-02-05 2024-12-31 13F AMGEN COM 031162100 9,370 20 0.21 2,442 -18.92 0.3593
2024-11-08 2024-09-30 13F AMGEN COM 031162100 9,350 -1,114 -10.65 3,013 -7.86 0.4332
2024-08-08 2024-06-30 13F AMGEN COM 031162100 10,464 0 0.00 3,269 9.88 0.4988
2024-05-06 2024-03-31 13F AMGEN COM 031162100 10,464 -350 -3.24 2,975 -4.46 0.4564
2024-01-31 2023-12-31 13F AMGEN COM 031162100 10,814 -130 -1.19 3,115 5.88 0.4940
2023-11-01 2023-09-30 13F AMGEN COM 031162100 10,944 -50 -0.45 2,941 20.53 0.4811
2023-08-21 2023-06-30 13F AMGEN COM 031162100 10,994 -94 -0.85 2,441 121,900.00 0.3766
2023-05-05 2023-03-31 13F AMGEN COM 031162100 11,088 -127 -1.13 3 0.00 0.4170
2023-02-08 2022-12-31 13F AMGEN COM 031162100 11,215 75 0.67 3 -99.92 0.4697
2022-10-19 2022-09-30 13F AMGEN COM 031162100 11,140 -50 -0.45 2,511 -7.79 0.4393
2022-07-27 2022-06-30 13F AMGEN COM 031162100 11,190 0 0.00 2,723 0.63 0.4370
2022-04-29 2022-03-31 13F AMGEN COM 031162100 11,190 -110 -0.97 2,706 6.45 0.3749
2022-01-26 2021-12-31 13F AMGEN COM 031162100 11,300 4,610 68.91 2,542 78.64 0.3496
2021-11-02 2021-09-30 13F AMGEN COM 031162100 6,690 0 0.00 1,423 -12.75 0.1935
2021-07-23 2021-06-30 13F AMGEN COM 031162100 6,690 0 0.00 1,631 -2.04 0.2125
2021-04-22 2021-03-31 13F AMGEN COM 031162100 6,690 -1,500 -18.32 1,665 -11.58 0.2234
2021-02-05 2020-12-31 13F AMGEN COM 031162100 8,190 0 0.00 1,883 -9.56 0.2919
2020-11-06 2020-09-30 13F AMGEN COM 031162100 8,190 -5 -0.06 2,082 7.71 0.4309
2020-07-29 2020-06-30 13F AMGEN COM 031162100 8,195 5 0.06 1,933 16.45 0.4717
2020-04-14 2020-03-31 13F AMGEN COM 031162100 8,190 0 0.00 1,660 -15.91 0.4404
2020-01-29 2019-12-31 13F AMGEN COM 031162100 8,190 -3,432 -29.53 1,974 -12.23 0.3398
2019-10-21 2019-09-30 13F AMGEN COM 031162100 11,622 0 0.00 2,249 5.00 0.4085
2019-08-02 2019-06-30 13F AMGEN COM 031162100 11,622 172 1.50 2,142 -1.52 0.3767
2019-04-30 2019-03-31 13F AMGEN COM 031162100 11,450 -100 -0.87 2,175 -3.25 0.3938
2019-01-29 2018-12-31 13F AMGEN COM 031162100 11,550 -93 -0.80 2,248 -6.84 0.4534
2018-11-02 2018-09-30 13F AMGEN COM 031162100 11,643 100 0.87 2,413 13.23 0.4387
2018-07-23 2018-06-30 13F AMGEN COM 031162100 11,543 -15 -0.13 2,131 8.17 0.4030
2018-04-19 2018-03-31 13F AMGEN COM 031162100 11,558 -1,050 -8.33 1,970 -10.17 0.3809
2018-01-31 2017-12-31 13F AMGEN COM 031162100 12,608 -150 -1.18 2,193 -7.82 0.4375
2017-11-03 2017-09-30 13F AMGEN COM 031162100 12,758 -3,713 -22.54 2,379 -16.14 0.4639
2017-07-26 2017-06-30 13F AMGEN COM 031162100 16,471 0 0.00 2,837 5.00 0.5629
2017-04-25 2017-03-31 13F AMGEN INC AMGN COM 031162100 16,471 -3,250 -16.48 2,702 -6.28 0.5586
2017-01-20 2016-12-31 13F AMGEN INC AMGN COM 031162100 19,721 -892 -4.33 2,883 -16.14 0.6040
2016-10-20 2016-09-30 13F AMGEN INC AMGN COM 031162100 20,613 -200 -0.96 3,438 8.56 0.7070
2016-07-22 2016-06-30 13F AMGEN INC AMGN COM 031162100 20,813 -167 -0.80 3,167 0.67 0.6504
2016-04-27 2016-03-31 13F AMGEN INC AMGN COM 031162100 20,980 -794 -3.65 3,146 -11.00 0.7381
2016-02-11 2015-12-31 13F AMGEN INC AMGN COM 031162100 21,774 -1,056 -4.63 3,535 11.94 0.7811
2015-10-23 2015-09-30 13F/A-1 AMGEN INC AMGN COM 031162100 22,830 -9,213 -28.75 3,158 -35.80 0.7493
2015-10-21 2015-09-30 13F AMGEN INC AMGN COM 031162100 32,043 4,919
2015-08-11 2015-06-30 13F AMGEN INC AMGN COM 031162100 32,043 -750 -2.29 4,919 -6.16 0.9259
2015-05-13 2015-03-31 13F AMGEN COM 031162100 32,793 -1,150 -3.39 5,242 -3.05 0.9963
2015-01-26 2014-12-31 13F AMGEN COM 031162100 33,943 -13,305 -28.16 5,407 -18.52 1.0182
2014-11-12 2014-09-30 13F AMGEN COM 031162100 47,248 -16,599 -26.00 6,636 -12.20 1.2765
2014-07-18 2014-06-30 13F AMGEN COM 031162100 63,847 -1,675 -2.56 7,558 -6.47 1.3803
2014-05-07 2014-03-31 13F AMGEN COM 031162100 65,522 -3,368 -4.89 8,081 2.82 1.4968
2014-02-03 2013-12-31 13F AMGEN COM 031162100 68,890 -975 -1.40 7,859 0.50 1.5003
2013-11-04 2013-09-30 13F AMGEN COM 031162100 69,865 -17,798 -20.30 7,820 -9.58 1.5924
2013-08-14 2013-06-30 13F AMGEN COM 031162100 87,663 87,663 8,649 1.8059
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.