Amgen Inc.
MX ˙ BMV ˙ NL0000888691
SecurityMX:AMGN / Amgen Inc.
InstitutionBuckley Wealth Management, LLC
Latest Disclosed Ownership33,102 shares
Latest Disclosed Value $ 11,646,959
Buckley Wealth Management, LLC reports 0.40% decrease in ownership of AMGN / Amgen Inc.

On May 13, 2026 - Buckley Wealth Management, LLC filed a 13F-HR form disclosing ownership of 33,102 shares of Amgen Inc. (MX:AMGN) valued at $11,646,959 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 33,235 shares of Amgen Inc.. This represents a change in shares of -0.40% 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)
2026-05-13 2026-03-31 13F AMGEN COM 031162100 33,102 -133 -0.40 11,647 7.06 2.9723
2026-02-12 2025-12-31 13F AMGEN COM 031162100 33,235 87 0.26 10,878 16.29 2.8842
2025-11-14 2025-09-30 13F AMGEN COM 031162100 33,148 -145 -0.44 9,354 0.63 2.5612
2025-08-11 2025-06-30 13F AMGEN COM 031162100 33,293 375 1.14 9,296 -9.36 2.7819
2025-05-15 2025-03-31 13F AMGEN COM 031162100 32,918 -550 -1.64 10,256 17.56 3.1903
2025-02-10 2024-12-31 13F AMGEN COM 031162100 33,468 8,333 33.15 8,723 7.72 2.6705
2024-10-18 2024-09-30 13F AMGEN COM 031162100 25,135 -1,050 -4.01 8,099 -1.01 2.4947
2024-07-24 2024-06-30 13F AMGEN COM 031162100 26,185 -83 -0.32 8,182 9.55 2.5930
2024-04-16 2024-03-31 13F AMGEN COM 031162100 26,268 -222 -0.84 7,469 -2.11 2.3948
2024-01-18 2023-12-31 13F AMGEN COM 031162100 26,490 -275 -1.03 7,630 6.06 2.6487
2023-10-13 2023-09-30 13F AMGEN COM 031162100 26,765 0 0.00 7,193 21.05 2.6913
2023-07-12 2023-06-30 13F AMGEN COM 031162100 26,765 -115 -0.43 5,942 -8.56 2.0210
2023-04-14 2023-03-31 13F AMGEN COM 031162100 26,880 -1,390 -4.92 6,498 -12.47 2.3929
2023-02-10 2022-12-31 13F AMGEN COM 031162100 28,270 -375 -1.31 7,425 14.98 2.7022
2022-11-14 2022-09-30 13F AMGEN COM 031162100 28,645 -1,190 -3.99 6,457 -11.05 2.3800
2022-08-04 2022-06-30 13F AMGEN COM 031162100 29,835 -1,605 -5.10 7,259 -4.52 2.3358
2022-05-06 2022-03-31 13F AMGEN COM 031162100 31,440 -1,170 -3.59 7,603 3.64 2.0580
2022-02-02 2021-12-31 13F AMGEN COM 031162100 32,610 -1,017 -3.02 7,336 2.59 2.1417
2021-11-09 2021-09-30 13F AMGEN COM 031162100 33,627 11,680 53.22 7,151 33.66 2.3125
2021-07-27 2021-06-30 13F AMGEN COM 031162100 21,947 -25 -0.11 5,350 -2.14 1.8353
2021-04-30 2021-03-31 13F AMGEN COM 031162100 21,972 -331 -1.48 5,467 6.61 2.0265
2021-01-20 2020-12-31 13F AMGEN COM 031162100 22,303 -797 -3.45 5,128 -12.66 2.1027
2020-10-19 2020-09-30 13F AMGEN COM 031162100 23,100 -50 -0.22 5,871 7.53 2.6354
2020-07-15 2020-06-30 13F AMGEN COM 031162100 23,150 -50 -0.22 5,460 16.10 2.4764
2020-04-10 2020-03-31 13F AMGEN COM 031162100 23,200 -850 -3.53 4,703 -18.89 2.5518
2020-01-16 2019-12-31 13F AMGEN COM 031162100 24,050 -955 -3.82 5,798 19.82 2.6311
2019-10-11 2019-09-30 13F AMGEN COM 031162100 25,005 -220 -0.87 4,839 4.11 2.3686
2019-07-19 2019-06-30 13F AMGEN COM 031162100 25,225 3,403 15.59 4,648 12.11 2.1753
2019-04-11 2019-03-31 13F AMGEN COM 031162100 21,822 3,720 20.55 4,146 17.65 1.9638
2019-02-01 2018-12-31 13F AMGEN COM 031162100 18,102 9,139 101.96 3,524 89.67 1.8168
2018-10-25 2018-09-30 13F AMGEN COM 031162100 8,963 -49 -0.54 1,858 11.66 0.8115
2018-07-31 2018-06-30 13F AMGEN COM 031162100 9,012 0 0.00 1,664 8.33 0.7868
2018-05-08 2018-03-31 13F AMGEN COM 031162100 9,012 -62 -0.68 1,536 -2.66 0.7593
2018-02-07 2017-12-31 13F AMGEN COM 031162100 9,074 9,074 1,578 0.7915
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.