Amgen Inc.
MX ˙ BMV ˙ NL0000888691
SecurityMX:AMGN / Amgen Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership15,836,058 shares
Latest Disclosed Value $ 5,571,918,344
Morgan Stanley reports 0.58% increase in ownership of AMGN / Amgen Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 15,836,058 shares of Amgen Inc. (MX:AMGN) valued at $5,571,918,344 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 15,744,528 shares of Amgen Inc.. This represents a change in shares of 0.58% 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 15,836,058 91,530 0.58 5,571,918 8.12 0.3357
2026-05-27 2025-12-31 13F/A-1 AMGEN COM 031162100 15,744,528 -165,997 -1.04 5,153,343 14.78 0.3077
2026-02-13 2025-12-31 13F AMGEN COM 031162100 15,744,528 -165,997 5,153,343 0.3077
2026-05-27 2025-09-30 13F/A-1 AMGEN COM 031162100 15,910,525 -274,256 -1.69 4,489,951 -0.64 0.2718
2025-11-14 2025-09-30 13F AMGEN COM 031162100 15,910,525 -274,256 4,489,951 0.2718
2025-08-15 2025-06-30 13F AMGEN COM 031162100 16,184,781 -49,340 -0.30 4,518,954 -10.65 0.2944
2025-05-15 2025-03-31 13F AMGEN COM 031162100 16,234,121 1,674,499 11.50 5,057,742 33.28 0.3616
2025-05-15 2024-12-31 13F/A-1 AMGEN COM 031162100 14,559,622 -134,600 -0.92 3,794,821 -19.85 0.2659
2025-02-14 2024-12-31 13F AMGEN COM 031162100 14,559,622 -134,600 3,794,821 0.2658
2025-05-14 2024-09-30 13F/A-2 AMGEN COM 031162100 14,694,222 331,744 2.31 4,734,627 5.51 0.3433
2025-02-14 2024-09-30 13F/A-1 AMGEN COM 031162100 14,694,222 331,744 4,734,627 0.3433
2024-11-14 2024-09-30 13F AMGEN COM 031162100 14,694,222 331,744 4,734,627 0.3432
2025-05-14 2024-06-30 13F/A-2 AMGEN COM 031162100 14,362,478 390,515 2.79 4,487,558 12.97 0.3472
2024-10-17 2024-06-30 13F/A-1 AMGEN COM 031162100 14,362,478 390,515 4,487,558 0.3472
2024-08-14 2024-06-30 13F AMGEN COM 031162100 14,362,478 390,515 4,487,558 0.3473
2024-10-17 2024-03-31 13F/A-2 AMGEN COM 031162100 13,971,963 -462,099 -3.20 3,972,509 -4.44 0.3187
2024-08-16 2024-03-31 13F/A-1 AMGEN COM 031162100 13,971,963 -462,099 3,972,509 0.0373
2024-05-15 2024-03-31 13F AMGEN COM 031162100 13,971,963 -462,099 3,972,509 0.3188
2024-08-16 2023-12-31 13F/A-1 AMGEN COM 031162100 14,434,062 1,186,089 8.95 4,157,299 16.76 0.3664
2024-02-13 2023-12-31 13F AMGEN COM 031162100 14,434,062 1,186,089 4,157,299 0.3664
2023-11-15 2023-09-30 13F AMGEN COM 031162100 13,247,973 -352,016 -2.59 3,560,526 17.92 0.3621
2023-08-14 2023-06-30 13F AMGEN COM 031162100 13,599,989 789,192 6.16 3,019,470 -2.50 0.2976
2023-05-15 2023-03-31 13F AMGEN COM 031162100 12,810,797 -490,568 -3.69 3,097,011 -11.35 0.3321
2023-02-14 2022-12-31 13F AMGEN COM 031162100 13,301,365 1,523,665 12.94 3,493,471 31.60 0.3968
2022-11-14 2022-09-30 13F AMGEN COM 031162100 11,777,700 -2,342,274 -16.59 2,654,694 -22.73 0.3618
2022-10-27 2022-06-30 13F/A-1 AMGEN COM 031162100 14,119,974 -308,145 -2.14 3,435,391 -1.54 0.4459
2022-08-15 2022-06-30 13F AMGEN COM 031162100 14,119,974 -308,145 3,435,391 0.4459
2022-10-27 2022-03-31 13F/A-1 AMGEN COM 031162100 14,428,119 4,767,146 49.34 3,489,008 60.53 0.4706
2022-05-13 2022-03-31 13F AMGEN COM 031162100 14,428,119 4,767,146 3,489,008 0.4706
2022-02-14 2021-12-31 13F AMGEN COM 031162100 9,660,973 -245,872 -2.48 2,173,429 3.17 0.2684
2021-11-15 2021-09-30 13F AMGEN COM 031162100 9,906,845 -134,087 -1.34 2,106,692 -13.92 0.2837
2021-08-23 2021-06-30 13F/A-1 AMGEN COM 031162100 10,040,932 80,922 0.81 2,447,476 -1.24 0.3228
2021-08-16 2021-06-30 13F AMGEN COM 031162100 10,040,932 80,922 2,447,476 0.0671
2021-05-17 2021-03-31 13F AMGEN COM 031162100 9,960,010 214,454 2.20 2,478,151 10.60 0.3640
2021-02-16 2020-12-31 13F AMGEN COM 031162100 9,745,556 1,179,665 13.77 2,240,698 2.92 0.3461
2020-11-13 2020-09-30 13F AMGEN COM 031162100 8,565,891 561,293 7.01 2,177,107 15.32 0.4211
2020-08-14 2020-06-30 13F AMGEN COM 031162100 8,004,598 740,763 10.20 1,887,965 28.21 0.4179
2020-05-26 2020-03-31 13F/A-1 AMGEN COM 031162100 7,263,835 501,592 7.42 1,472,598 -9.67 0.4002
2020-05-15 2020-03-31 13F AMGEN COM 031162100 7,263,835 7,261,683 1,472,598 113,126.2249
2020-02-14 2019-12-31 13F AMGEN COM 031162100 6,762,243 245,980 3.77 1,630,174 29.28 0.3791
2019-11-14 2019-09-30 13F AMGEN COM 031162100 6,516,263 -236,882 -3.51 1,260,963 1.33 0.3338
2019-08-14 2019-06-30 13F AMGEN COM 031162100 6,753,145 34,674 0.52 1,244,470 -2.50 0.3312
2019-05-15 2019-03-31 13F AMGEN COM 031162100 6,718,471 -1,264,383 -15.84 1,276,376 -17.87 0.3613
2019-02-14 2018-12-31 13F AMGEN COM 031162100 7,982,854 765,495 10.61 1,554,021 3.87 0.4650
2019-04-23 2018-09-30 13F/A-2 AMGEN COM 031162100 7,217,359 -872,934 -10.79 1,496,085 0.18 0.3745
2018-11-20 2018-09-30 13F/A-1 AMGEN COM 031162100 7,217,359 0 1,496,085 0.3745
2018-11-14 2018-09-30 13F AMGEN COM 031162100 7,217,359 -872,934 1,496,085
2019-04-23 2018-06-30 13F/A-1 AMGEN COM 031162100 8,090,293 -929,093 -10.30 1,493,387 -2.88 0.4035
2018-08-14 2018-06-30 13F AMGEN COM 031162100 8,090,293 -929,093 1,493,387
2019-04-23 2018-03-31 13F/A-1 AMGEN COM 031162100 9,019,386 383,455 4.44 1,537,623 2.39 0.4268
2018-05-14 2018-03-31 13F AMGEN COM 031162100 9,019,386 383,455 1,537,623
2019-04-23 2017-12-31 13F/A-1 AMGEN COM 031162100 8,635,931 -78,606 -0.90 1,501,787 -7.57 0.4111
2018-02-14 2017-12-31 13F AMGEN COM 031162100 8,635,931 -78,606 1,501,787
2017-11-14 2017-09-30 13F AMGEN COM 031162100 8,714,537 -138,305 -1.56 1,624,827 6.57 0.4867
2017-08-11 2017-06-30 13F AMGEN COM 031162100 8,852,842 138,393 1.59 1,524,727 6.64 0.4606
2017-05-22 2017-03-31 13F/A-1 AMGEN COM 031162100 8,714,449 -1,548 -0.02 1,429,781 12.20 0.4394
2017-05-12 2017-03-31 13F AMGEN COM 031162100 8,714,449 1,429,781
2017-02-22 2016-12-31 13F/A-1 AMGEN COM 031162100 8,715,997 37,211 0.43 1,274,367 -11.97 0.4171
2017-02-13 2016-12-31 13F AMGEN COM 031162100 8,715,997 1,274,367
2016-11-10 2016-09-30 13F AMGEN COM 031162100 8,678,786 639,410 7.95 1,447,708 18.35 0.4944
2016-08-12 2016-06-30 13F AMGEN COM 031162100 8,039,376 148,772 1.89 1,223,192 3.39 0.4418
2016-05-12 2016-03-31 13F AMGEN COM 031162100 7,890,604 573,579 7.84 1,183,039 -0.40 0.4553
2016-02-09 2015-12-31 13F AMGEN COM 031162100 7,317,025 373,979 5.39 1,187,772 23.68 0.4300
2016-02-08 2015-09-30 13F/A-1 AMGEN COM 031162100 6,943,046 188,924 2.80 960,364 -7.38 0.3549
2015-11-09 2015-09-30 13F AMGEN COM 031162100 6,943,046 960,364
2015-08-12 2015-06-30 13F AMGEN COM 031162100 6,754,122 483,825 7.72 1,036,894 3.45 0.3594
2015-05-14 2015-03-31 13F AMGEN COM 031162100 6,270,297 25,150 0.40 1,002,306 0.76 0.3691
2015-02-13 2014-12-31 13F AMGEN COM 031162100 6,245,147 1,092,159 21.19 994,788 37.44 0.3638
2014-12-16 2014-09-30 13F/A-1 AMGEN COM 031162100 5,152,988 268,039 5.49 723,788 25.17 0.2783
2014-11-14 2014-09-30 13F AMGEN COM 031162100 5,152,988 723,788
2014-08-12 2014-06-30 13F AMGEN COM 031162100 4,884,949 1,148,027 30.72 578,232 25.45 0.9890
2014-05-13 2014-03-31 13F AMGEN COM 031162100 3,736,922 110,471 3.05 460,913 11.41 0.1930
2014-02-13 2013-12-31 13F AMGEN COM 031162100 3,626,451 261,292 7.76 413,705 9.84 0.1760
2013-11-13 2013-09-30 13F AMGEN INC COM ST COM 031162100 3,365,159 -127,574 -3.65 376,645 9.30 0.1780
2013-08-08 2013-06-30 13F AMGEN INC COM ST COM 031162100 3,492,733 3,492,733 344,595 0.1738
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.