Amgen Inc.
US ˙ NasdaqGS ˙ US0311621009

SecurityAMGN / Amgen Inc.
InstitutionCertified Advisory Corp
Latest Disclosed Ownership1,413 shares
Latest Disclosed Value $ 497,114
Certified Advisory Corp reports 8.66% decrease in ownership of AMGN / Amgen Inc.

On April 17, 2026 - Certified Advisory Corp filed a 13F-HR form disclosing ownership of 1,413 shares of Amgen Inc. (US:AMGN) valued at $497,164 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 1,547 shares of Amgen Inc.. This represents a change in shares of -8.66% during the quarter. The current value of the position is $477,905 USD.

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)
2026-04-17 2026-03-31 13F AMGEN COM 031162100 1,413 -134 -8.66 497 -1.78 0.0446
2026-01-12 2025-12-31 13F AMGEN COM 031162100 1,547 -19 -1.21 506 14.74 0.0461
2025-11-13 2025-09-30 13F AMGEN COM 031162100 1,566 9 0.58 442 1.61 0.0420
2025-08-14 2025-06-30 13F AMGEN COM 031162100 1,557 120 8.35 435 -2.91 0.0452
2025-05-08 2025-03-31 13F AMGEN COM 031162100 1,437 -53 -3.56 448 15.21 0.0507
2025-01-15 2024-12-31 13F AMGEN COM 031162100 1,490 20 1.36 388 -17.97 0.0422
2024-11-12 2024-09-30 13F AMGEN COM 031162100 1,470 10 0.68 474 3.73 0.0525
2024-08-13 2024-06-30 13F AMGEN Stock 031162100 1,460 201 15.97 456 27.37 0.0572
2024-05-10 2024-03-31 13F AMGEN Stock 031162100 1,259 15 1.21 358 0.00 0.0499
2024-02-09 2023-12-31 13F AMGEN Stock 031162100 1,244 -6,660 -84.26 358 5.29 0.0543
2023-11-13 2023-09-30 13F AMGEN Stock 031162100 7,904 6,628 519.44 341 20.14 0.0627
2023-08-14 2023-06-30 13F AMGEN Stock 031162100 1,276 -31 -2.37 283 -10.44 0.0521
2023-05-17 2023-03-31 13F/A-1 AMGEN Stock 031162100 1,307 -940 -41.83 316 -46.44 0.0562
2023-05-15 2023-03-31 13F AMGEN Stock 031162100 1,307 -940 316 0.0562
2023-02-15 2022-12-31 13F AMGEN Stock 031162100 2,247 31 1.40 590 18.00 0.1166
2022-11-14 2022-09-30 13F AMGEN COM 031162100 2,216 889 66.99 500 54.80 0.1141
2022-08-15 2022-06-30 13F AMGEN COM 031162100 1,327 37 2.87 323 3.53 0.0720
2022-05-13 2022-03-31 13F AMGEN Stock 031162100 1,290 0 0.00 312 7.59 0.0663
2022-02-14 2021-12-31 13F AMGEN Stock 031162100 1,290 0 0.00 290 5.84 0.0640
2021-11-15 2021-09-30 13F AMGEN Stock 031162100 1,290 61 4.96 274 -8.67 0.0666
2021-08-16 2021-06-30 13F AMGEN Stock 031162100 1,229 0 0.00 300 -1.96 0.0754
2021-05-10 2021-03-31 13F AMGEN Stock 031162100 1,229 21 1.74 306 7.37 0.0793
2020-07-27 2020-06-30 13F AMGEN Stock 031162100 1,208 200 19.84 285 39.02 0.0943
2020-04-27 2020-03-31 13F AMGEN Stock 031162100 1,008 0 0.00 205 -15.64 0.0810
2020-01-29 2019-12-31 13F AMGEN Stock 031162100 1,008 0 0.00 243 23.98 0.0777
2019-11-12 2019-09-30 13F AMGEN Stock 031162100 1,008 0 0.00 196 5.95 0.0681
2019-08-07 2019-06-30 13F AMGEN Stock 031162100 1,008 -90 -8.20 185 -11.48 0.0688
2019-05-07 2019-03-31 13F AMGEN Stock 031162100 1,098 0 0.00 209 -2.34 0.0878
2019-02-04 2018-12-31 13F AMGEN Stock 031162100 1,098 0 0.00 214 -6.14 0.1110
2018-11-13 2018-09-30 13F AMGEN Stock 031162100 1,098 0 0.00 228 12.87 0.1055
2018-08-13 2018-06-30 13F AMGEN COM 031162100 1,098 -29 -2.57 202 5.76 0.1123
2018-04-30 2018-03-31 13F AMGEN COM 031162100 1,127 1,001 794.44 191 809.52 0.1132
2018-02-22 2017-12-31 13F AMGEN COM 031162100 126 126 21 0.0151
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.