Amgen Inc.
CH ˙ SWX ˙ NL0000888691
SecurityCH:AMGN / Amgen Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership3,304,344 shares
Latest Disclosed Value $ 1,162,649,382
Dimensional Fund Advisors Lp reports 2.27% increase in ownership of AMGN / Amgen Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 3,304,344 shares of Amgen Inc. (CH:AMGN) valued at $1,162,649,382 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 3,230,979 shares of Amgen Inc.. This represents a change in shares of 2.27% 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)
2026-05-07 2026-03-31 13F AMGEN COM 031162100 3,304,344 73,365 2.27 1,162,649 9.94 0.2415
2026-02-12 2025-12-31 13F AMGEN COM 031162100 3,230,979 52,389 1.65 1,057,561 17.92 0.2218
2025-11-12 2025-09-30 13F AMGEN COM 031162100 3,178,590 154,664 5.11 896,843 6.22 0.1925
2025-08-12 2025-06-30 13F AMGEN COM 031162100 3,023,926 3,381 0.11 844,290 -10.28 0.1955
2025-05-13 2025-03-31 13F AMGEN COM 031162100 3,020,545 22,820 0.76 940,989 20.44 0.2339
2025-02-13 2024-12-31 13F AMGEN COM 031162100 2,997,725 186,940 6.65 781,301 -13.73 0.1876
2024-11-07 2024-09-30 13F AMGEN COM 031162100 2,810,785 109,154 4.04 905,668 7.29 0.2197
2024-08-09 2024-06-30 13F AMGEN COM 031162100 2,701,631 162,223 6.39 844,137 16.92 0.2205
2024-05-10 2024-03-31 13F AMGEN COM 031162100 2,539,408 62,626 2.53 722,005 1.21 0.1955
2024-02-07 2023-12-31 13F AMGEN COM 031162100 2,476,782 63,656 2.64 713,367 9.99 0.2083
2023-11-09 2023-09-30 13F AMGEN COM 031162100 2,413,126 20,674 0.86 648,573 22.10 0.2127
2023-08-09 2023-06-30 13F AMGEN COM 031162100 2,392,452 47,743 2.04 531,164 -6.29 0.1693
2023-05-12 2023-03-31 13F AMGEN COM 031162100 2,344,709 -37,198 -1.56 566,831 90,592.96 0.1909
2023-02-09 2022-12-31 13F AMGEN COM 031162100 2,381,907 -96,299 -3.89 626 -99.89 0.1848
2022-11-10 2022-09-30 13F AMGEN COM 031162100 2,478,206 -6,441 -0.26 558,622 -7.59 0.2145
2022-08-12 2022-06-30 13F AMGEN COM 031162100 2,484,647 22,642 0.92 604,528 1.54 0.2168
2022-05-13 2022-03-31 13F AMGEN COM 031162100 2,462,005 -129,050 -4.98 595,370 2.13 0.1834
2022-02-09 2021-12-31 13F AMGEN COM 031162100 2,591,055 -67,657 -2.54 582,925 3.10 0.1762
2021-11-12 2021-09-30 13F AMGEN COM 031162100 2,658,712 -5,551 -0.21 565,409 -12.93 0.1821
2021-08-12 2021-06-30 13F AMGEN COM 031162100 2,664,263 16,621 0.63 649,399 -1.45 0.2056
2021-05-14 2021-03-31 13F AMGEN COM 031162100 2,647,642 -8,414 -0.32 658,959 7.91 0.2180
2021-03-08 2020-12-31 13F/A-2 AMGEN COM 031162100 2,656,056 20,800 0.79 610,650 -8.82 0.2205
2021-02-11 2020-12-31 13F AMGEN COM 031162100 2,656,056 20,800 610,650 220,534.3222
2020-11-12 2020-09-30 13F AMGEN COM 031162100 2,635,256 67,374 2.62 669,685 10.58 0.2840
2020-08-13 2020-06-30 13F AMGEN COM 031162100 2,567,882 42,153 1.67 605,598 18.25 0.2662
2020-05-14 2020-03-31 13F AMGEN COM 031162100 2,525,729 116,304 4.83 512,112 -11.83 0.2668
2020-02-14 2019-12-31 13F AMGEN COM 031162100 2,409,425 5,811 0.24 580,829 24.87 0.2117
2019-11-12 2019-09-30 13F AMGEN COM 031162100 2,403,614 2,635 0.11 465,146 5.13 0.1807
2019-08-13 2019-06-30 13F AMGEN COM 031162100 2,400,979 8,055 0.34 442,454 -2.67 0.1718
2019-08-12 2019-03-31 13F/A-2 AMGEN COM 031162100 2,392,924 -33,396 -1.38 454,582 -3.75 0.1810
2019-05-10 2019-03-31 13F AMGEN COM 031162100 2,392,924 -33,396 454,582
2019-02-26 2018-12-31 13F/A-1 AMGEN COM 031162100 2,426,320 -6,329 -0.26 472,288 -6.35 0.2139
2019-02-13 2018-12-31 13F AMGEN COM 031162100 2,426,320 -6,329 472,288
2018-11-13 2018-09-30 13F AMGEN COM 031162100 2,432,649 67,604 2.86 504,285 15.52 0.1920
2018-08-10 2018-06-30 13F AMGEN COM 031162100 2,365,045 343,690 17.00 436,551 26.68 0.1740
2018-05-11 2018-03-31 13F AMGEN COM 031162100 2,021,355 92,856 4.81 344,600 2.75 0.1436
2018-02-12 2017-12-31 13F AMGEN COM 031162100 1,928,499 28,245 1.49 335,390 -5.33 0.1390
2017-11-13 2017-09-30 13F AMGEN COM 031162100 1,900,254 31,504 1.69 354,289 10.07 0.1548
2017-08-11 2017-06-30 13F AMGEN COM 031162100 1,868,750 44,363 2.43 321,865 7.53 0.1486
2017-05-12 2017-03-31 13F AMGEN COM 031162100 1,824,387 83,378 4.79 299,326 17.58 0.1431
2017-02-09 2016-12-31 13F AMGEN COM 031162100 1,741,009 47,263 2.79 254,575 -9.89 0.1272
2016-11-10 2016-09-30 13F AMGEN COM 031162100 1,693,746 71,541 4.41 282,520 14.47 0.1527
2016-08-09 2016-06-30 13F AMGEN COM 031162100 1,622,205 91,791 6.00 246,800 7.56 0.1420
2016-05-13 2016-03-31 13F AMGEN COM 031162100 1,530,414 93,940 6.54 229,448 -1.61 0.1373
2016-02-10 2015-12-31 13F AMGEN COM 031162100 1,436,474 64,435 4.70 233,193 22.90 0.1453
2015-11-13 2015-09-30 13F AMGEN COM 031162100 1,372,039 48,365 3.65 189,744 -6.62 0.1245
2015-08-14 2015-06-30 13F AMGEN COM 031162100 1,323,674 117,623 9.75 203,203 5.39 0.1244
2015-05-14 2015-03-31 13F AMGEN COM 031162100 1,206,051 33,960 2.90 192,818 3.27 0.1218
2015-02-06 2014-12-31 13F AMGEN COM 031162100 1,172,091 70,198 6.37 186,721 20.64 0.1226
2014-11-13 2014-09-30 13F AMGEN COM 031162100 1,101,893 53,301 5.08 154,773 24.69 0.1097
2014-08-08 2014-06-30 13F AMGEN COM 031162100 1,048,592 -11,151 -1.05 124,122 -5.03 0.0863
2014-05-14 2014-03-31 13F AMGEN COM 031162100 1,059,743 11,825 1.13 130,702 9.24 0.0977
2014-02-12 2013-12-31 13F AMGEN COM 031162100 1,047,918 -496 -0.05 119,644 1.94 0.0932
2013-11-13 2013-09-30 13F AMGEN COM 031162100 1,048,414 14,781 1.43 117,363 15.08 0.1016
2013-08-15 2013-06-30 13F AMGEN COM 031162100 1,033,633 1,033,633 101,983 0.0960
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.