Amgen Inc.
MX ˙ BMV ˙ NL0000888691
SecurityMX:AMGN / Amgen Inc.
InstitutionStifel Financial Corp
Latest Disclosed Ownership1,555,021 shares
Latest Disclosed Value $ 547,183,111
Stifel Financial Corp reports 2.47% decrease in ownership of AMGN / Amgen Inc.

On May 12, 2026 - Stifel Financial Corp filed a 13F-HR form disclosing ownership of 1,555,021 shares of Amgen Inc. (MX:AMGN) valued at $547,183,111 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,594,369 shares of Amgen Inc.. This represents a change in shares of -2.47% 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)
2026-05-12 2026-03-31 13F AMGEN COM 031162100 1,555,021 -39,348 -2.47 547,183 4.85 0.5030
2026-02-13 2025-12-31 13F AMGEN COM 031162100 1,594,369 53,934 3.50 521,897 20.05 0.4695
2025-11-12 2025-09-30 13F AMGEN COM 031162100 1,540,435 25,384 1.68 434,748 2.77 0.3969
2025-08-14 2025-06-30 13F AMGEN COM 031162100 1,515,051 64,135 4.42 423,047 -6.42 0.4115
2025-05-14 2025-03-31 13F AMGEN COM 031162100 1,450,916 48,472 3.46 452,070 23.66 0.4805
2025-02-13 2024-12-31 13F AMGEN COM 031162100 1,402,444 -6,316 -0.45 365,564 -19.47 0.3808
2024-11-14 2024-09-30 13F AMGEN COM 031162100 1,408,760 -52,851 -3.62 453,953 -0.61 0.4760
2024-08-13 2024-06-30 13F AMGEN COM 031162100 1,461,611 28,475 1.99 456,722 12.08 0.5139
2024-05-14 2024-03-31 13F AMGEN COM 031162100 1,433,136 74,955 5.52 407,507 4.16 0.4643
2024-02-12 2023-12-31 13F AMGEN COM 031162100 1,358,181 3,299 0.24 391,216 7.42 0.4923
2023-11-13 2023-09-30 13F AMGEN COM 031162100 1,354,882 38,881 2.95 364,178 24.63 0.5120
2023-08-14 2023-06-30 13F AMGEN COM 031162100 1,316,001 33,325 2.60 292,204 -5.78 0.3999
2023-05-12 2023-03-31 13F AMGEN COM 031162100 1,282,676 263,339 25.83 310,124 15.83 0.4445
2023-02-13 2022-12-31 13F AMGEN COM 031162100 1,019,337 22,561 2.26 267,751 19.16 0.4019
2022-11-14 2022-09-30 13F AMGEN COM 031162100 996,776 37,810 3.94 224,702 -3.70 0.3679
2022-08-15 2022-06-30 13F AMGEN COM 031162100 958,966 23,800 2.55 233,343 3.17 0.3652
2022-05-13 2022-03-31 13F AMGEN COM 031162100 935,166 40,641 4.54 226,170 12.38 0.3086
2022-02-14 2021-12-31 13F AMGEN COM 031162100 894,525 41,215 4.83 201,261 10.91 0.2660
2021-11-15 2021-09-30 13F AMGEN COM 031162100 853,310 1,295 0.15 181,470 -12.63 0.2661
2021-08-13 2021-06-30 13F AMGEN COM 031162100 852,015 26,337 3.19 207,696 1.09 0.3108
2021-05-14 2021-03-31 13F AMGEN COM 031162100 825,678 41,733 5.32 205,453 13.98 0.3387
2021-02-12 2020-12-31 13F AMGEN COM 031162100 783,945 30,189 4.01 180,257 -5.91 0.3216
2020-11-16 2020-09-30 13F AMGEN COM 031162100 753,756 40,033 5.61 191,585 13.80 0.3941
2020-08-14 2020-06-30 13F AMGEN COM 031162100 713,723 43,988 6.57 168,348 24.23 0.3871
2020-05-14 2020-03-31 13F AMGEN COM 031162100 669,735 -119,150 -15.10 135,513 -28.68 0.3742
2020-02-13 2019-12-31 13F AMGEN COM 031162100 788,885 224,589 39.80 190,005 73.71 0.3958
2019-11-19 2019-09-30 13F/A-1 AMGEN COM 031162100 564,296 -58,095 -9.33 109,381 -4.62 0.2791
2019-11-13 2019-09-30 13F AMGEN COM 031162100 564,486 -57,905 109,419 61,334.8339
2019-08-14 2019-06-30 13F AMGEN COM 031162100 622,391 87,497 16.36 114,678 12.80 0.2957
2019-05-14 2019-03-31 13F AMGEN COM 031162100 534,894 -7,038 -1.30 101,668 -3.73 0.2873
2019-02-13 2018-12-31 13F AMGEN COM 031162100 541,932 9,769 1.84 105,609 -4.17 0.3415
2018-11-13 2018-09-30 13F AMGEN COM 031162100 532,163 -11,702 -2.15 110,204 9.78 0.3157
2018-08-14 2018-06-30 13F AMGEN COM 031162100 543,865 17,614 3.35 100,383 11.79 0.3080
2018-05-11 2018-03-31 13F AMGEN COM 031162100 526,251 -56,351 -9.67 89,799 -11.34 0.2834
2018-02-14 2017-12-31 13F AMGEN COM 031162100 582,602 -63,888 -9.88 101,283 -15.87 0.3211
2017-11-13 2017-09-30 13F AMGEN COM 031162100 646,490 635,066 5,559.05 120,383 6,017.02 0.4178
2017-11-01 2017-06-30 13F/A-1 AMGEN COM 031162100 11,424 -662,538 -98.30 1,968 -98.22 1.7702
2017-08-14 2017-06-30 13F AMGEN COM 031162100 665,395 -8,567 114,638
2017-05-10 2017-03-31 13F AMGEN COM 031162100 673,962 66,740 10.99 110,390 24.38 0.4274
2017-02-16 2016-12-31 13F AMGEN COM 031162100 607,222 92,984 18.08 88,754 3.11 0.3768
2016-11-15 2016-09-30 13F AMGEN COM 031162100 514,238 313 0.06 86,077 10.08 0.3871
2016-08-17 2016-06-30 13F AMGEN COM 031162100 513,925 82,331 19.08 78,194 20.84 0.3617
2016-05-16 2016-03-31 13F AMGEN COM 031162100 431,594 79,118 22.45 64,709 13.09 0.3448
2016-03-21 2015-12-31 13F/A-2 AMGEN COM 031162100 352,476 -1,343 -0.38 57,217 16.92 0.2979
2016-02-26 2015-12-31 13F/A-1 AMGEN COM 031162100 243,503 -108,973 40,166 0.2100
2016-02-16 2015-12-31 13F AMGEN COM 031162100 243,408 41,182
2015-11-16 2015-09-30 13F AMGEN COM 031162100 353,819 115,268 48.32 48,938 33.86 0.2750
2015-08-17 2015-06-30 13F/A-1 AMGEN COM 031162100 238,551 -16,491 -6.47 36,560 -10.34 0.1890
2015-08-17 2015-06-30 13F AMGEN COM 031162100 236,316 36,231
2015-05-14 2015-03-31 13F AMGEN COM 031162100 255,042 71,032 38.60 40,777 39.07 0.2232
2015-02-13 2014-12-31 13F AMGEN COM 031162100 184,010 36,226 24.51 29,322 41.26 0.1629
2014-11-13 2014-09-30 13F AMGEN COM 031162100 147,784 -13,683 -8.47 20,757 8.60 0.1822
2014-08-14 2014-06-30 13F AMGEN COM 031162100 161,467 -28,248 -14.89 19,113 -18.32 0.1716
2014-05-15 2014-03-31 13F AMGEN COM 031162100 189,715 189,715 23,400 0.2239
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.