Amgen Inc.
MX ˙ BMV ˙ NL0000888691
SecurityMX:AMGN / Amgen Inc.
InstitutionBrown Advisory Inc
Latest Disclosed Ownership122,883 shares
Latest Disclosed Value $ 43,236,506
Brown Advisory Inc reports 0.48% increase in ownership of AMGN / Amgen Inc.

On May 15, 2026 - Brown Advisory Inc filed a 13F-HR form disclosing ownership of 122,883 shares of Amgen Inc. (MX:AMGN) valued at $43,236,506 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 122,302 shares of Amgen Inc.. This represents a change in shares of 0.48% 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)
2026-05-15 2026-03-31 13F AMGEN COM 031162100 122,883 581 0.48 43,237 8.01 0.0317
2026-02-13 2025-12-31 13F AMGEN COM 031162100 122,302 1,704 1.41 40,031 17.62 0.0558
2025-11-14 2025-09-30 13F AMGEN COM 031162100 120,598 -663 -0.55 34,033 0.52 0.0443
2025-08-13 2025-06-30 13F AMGEN COM 031162100 121,261 812 0.67 33,857 -9.77 0.0446
2025-04-30 2025-03-31 13F AMGEN COM 031162100 120,449 -241,107 -66.69 37,526 -60.18 0.0536
2025-02-14 2024-12-31 13F AMGEN COM 031162100 361,556 49,109 15.72 94,236 -6.39 0.1195
2024-11-13 2024-09-30 13F AMGEN COM 031162100 312,447 -93,354 -23.00 100,674 -20.60 0.1264
2024-08-14 2024-06-30 13F AMGEN COM 031162100 405,801 53,102 15.06 126,793 26.44 0.1657
2024-04-24 2024-03-31 13F AMGEN COM 031162100 352,699 2,371 0.68 100,279 -0.62 0.1341
2024-02-08 2023-12-31 13F AMGEN COM 031162100 350,328 5,475 1.59 100,902 8.87 0.1418
2023-10-25 2023-09-30 13F AMGEN COM 031162100 344,853 5,253 1.55 92,683 22.92 0.1521
2023-07-31 2023-06-30 13F AMGEN COM 031162100 339,600 24,732 7.85 75,398 -0.95 0.1178
2023-05-08 2023-03-31 13F AMGEN COM 031162100 314,868 15,154 5.06 76,119 -3.30 0.1289
2023-02-13 2022-12-31 13F AMGEN COM 031162100 299,714 -6,711 -2.19 78,717 13.97 0.1462
2022-11-14 2022-09-30 13F AMGEN COM 031162100 306,425 6,289 2.10 69,067 -5.42 0.1343
2022-11-14 2022-06-30 13F/A-2 AMGEN COM 031162100 300,136 13,583 4.74 73,023 5.38 0.1373
2022-09-13 2022-06-30 13F/A-1 AMGEN COM 031162100 490,102 26,471 119,241 0.2062
2022-08-02 2022-06-30 13F AMGEN COM 031162100 437,317 1,306 99,876 0.1605
2022-11-14 2022-03-31 13F/A-2 AMGEN COM 031162100 286,553 -154,819 -35.08 69,294 -30.22 0.1033
2022-09-13 2022-03-31 13F/A-1 AMGEN COM 031162100 463,631 22,259 112,115 0.1574
2022-05-09 2022-03-31 13F AMGEN COM 031162100 436,011 -5,361 99,439 0.1351
2022-01-27 2021-12-31 13F AMGEN COM 031162100 441,372 194,028 78.44 99,297 88.79 0.1230
2021-11-12 2021-09-30 13F AMGEN COM 031162100 247,344 55,579 28.98 52,597 12.53 0.0776
2021-07-29 2021-06-30 13F AMGEN COM 031162100 191,765 37,068 23.96 46,742 21.44 0.0705
2021-05-14 2021-03-31 13F AMGEN COM 031162100 154,697 27,943 22.05 38,490 32.07 0.0658
2021-02-12 2020-12-31 13F AMGEN COM 031162100 126,754 6,333 5.26 29,144 -4.78 0.0517
2020-11-16 2020-09-30 13F AMGEN COM 031162100 120,421 1,750 1.47 30,606 9.35 0.0632
2020-08-14 2020-06-30 13F AMGEN COM 031162100 118,671 940 0.80 27,989 17.27 0.0652
2020-05-15 2020-03-31 13F AMGEN COM 031162100 117,731 -4,641 -3.79 23,868 -19.09 0.0731
2020-02-14 2019-12-31 13F AMGEN COM 031162100 122,372 -539 -0.44 29,501 24.03 0.0748
2019-11-14 2019-09-30 13F AMGEN COM 031162100 122,911 4,762 4.03 23,785 9.25 0.0667
2019-08-12 2019-06-30 13F AMGEN COM 031162100 118,149 -131,646 -52.70 21,771 -54.12 0.0623
2019-05-15 2019-03-31 13F AMGEN COM 031162100 249,795 8,132 3.37 47,456 0.87 0.1346
2019-02-13 2018-12-31 13F AMGEN COM 031162100 241,663 7,796 3.33 47,045 -2.96 0.1580
2018-11-13 2018-09-30 13F AMGEN COM 031162100 233,867 4,423 1.93 48,479 14.47 0.1379
2018-08-10 2018-06-30 13F AMGEN COM 031162100 229,444 43,034 23.09 42,352 33.27 0.1303
2018-06-28 2018-03-31 13F/A-1 AMGEN COM 031162100 186,410 3,452 1.89 31,779 -0.12 0.1027
2018-05-14 2018-03-31 13F AMGEN COM 031162100 155,524 -27,434 26,514
2018-02-12 2017-12-31 13F AMGEN COM 031162100 182,958 815 0.45 31,817 -6.31 0.1007
2017-11-13 2017-09-30 13F AMGEN COM 031162100 182,143 -477 -0.26 33,961 7.97 0.1126
2017-08-14 2017-06-30 13F AMGEN COM 031162100 182,620 -3,180 -1.71 31,453 3.18 0.0961
2017-05-15 2017-03-31 13F AMGEN COM 031162100 185,800 17,249 10.23 30,485 23.70 0.1040
2017-02-13 2016-12-31 13F AMGEN COM 031162100 168,551 5,439 3.33 24,644 -9.43 0.0880
2016-11-14 2016-09-30 13F AMGEN COM 031162100 163,112 332 0.20 27,209 9.86 0.0935
2016-08-09 2016-06-30 13F AMGEN COM 031162100 162,780 6,353 4.06 24,768 5.61 0.0870
2016-05-13 2016-03-31 13F AMGEN COM 031162100 156,427 12,729 8.86 23,452 0.54 0.0810
2016-02-08 2015-12-31 13F AMGEN COM 031162100 143,698 785 0.55 23,327 18.01 0.0791
2015-11-13 2015-09-30 13F AMGEN COM 031162100 142,913 10,773 8.15 19,767 -2.55 0.0706
2015-08-11 2015-06-30 13F AMGEN COM 031162100 132,140 4,705 3.69 20,285 -0.42 0.0660
2015-05-14 2015-03-31 13F AMGEN COM 031162100 127,435 4,029 3.26 20,370 3.62 0.0648
2015-02-13 2014-12-31 13F/A-1 AMGEN COM 031162100 123,406 2,341 1.93 19,658 15.61 0.0620
2015-02-09 2014-12-31 13F AMGEN COM 031162100 122,602 18,810
2014-11-10 2014-09-30 13F AMGEN COM 031162100 121,065 -7,616 -5.92 17,004 11.63 0.0546
2014-08-08 2014-06-30 13F AMGEN COM 031162100 128,681 -1,904 -1.46 15,232 -5.43 0.0479
2014-05-13 2014-03-31 13F AMGEN COM 031162100 130,585 123 0.09 16,107 8.22 0.0513
2014-02-11 2013-12-31 13F AMGEN COM 031162100 130,462 1,821 1.42 14,883 3.37 0.0483
2013-11-08 2013-09-30 13F AMGEN COM 031162100 128,641 4,007 3.22 14,398 17.09 0.0514
2013-08-13 2013-06-30 13F AMGEN COM 031162100 124,634 124,634 12,296 0.0492
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.