Amgen Inc.
MX ˙ BMV ˙ NL0000888691
SecurityMX:AMGN / Amgen Inc.
InstitutionQuadrant Capital Group Llc
Latest Disclosed Ownership17,975 shares
Latest Disclosed Value $ 6,324,504
Quadrant Capital Group Llc reports 7.31% increase in ownership of AMGN / Amgen Inc.

On May 13, 2026 - Quadrant Capital Group Llc filed a 13F-HR/A form disclosing ownership of 17,975 shares of Amgen Inc. (MX:AMGN) valued at $6,324,504 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 16,751 shares of Amgen Inc.. This represents a change in shares of 7.31% 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)
2026-05-13 2026-03-31 13F/A-1 AMGEN COM 031162100 17,975 1,224 7.31 6,325 15.36 0.1891
2026-05-11 2026-03-31 13F AMGEN COM 031162100 17,975 1,224 49 0.0369
2026-02-12 2025-12-31 13F AMGEN COM 031162100 16,751 1,927 13.00 5,483 31.05 0.1656
2025-11-13 2025-09-30 13F AMGEN COM 031162100 14,824 -309 -2.04 4,183 -0.99 0.1360
2025-08-13 2025-06-30 13F AMGEN COM 031162100 15,133 1,569 11.57 4,225 0.00 0.1521
2025-05-13 2025-03-31 13F AMGEN COM 031162100 13,564 6,412 89.65 4,226 126.66 0.1569
2025-02-13 2024-12-31 13F AMGEN COM 031162100 7,152 -861 -10.75 1,864 -27.78 0.1283
2024-11-12 2024-09-30 13F AMGEN COM 031162100 8,013 8 0.10 2,582 3.20 0.1794
2024-08-12 2024-06-30 13F AMGEN COM 031162100 8,005 546 7.32 2,501 17.97 0.1857
2024-05-15 2024-03-31 13F AMGEN COM 031162100 7,459 -761 -9.26 2,121 -10.44 0.1675
2024-02-08 2023-12-31 13F AMGEN COM 031162100 8,220 809 10.92 2,368 18.88 0.2034
2023-11-14 2023-09-30 13F AMGEN COM 031162100 7,411 1,363 22.54 1,992 48.36 0.1994
2023-08-10 2023-06-30 13F AMGEN COM 031162100 6,048 -1,265 -17.30 1,343 -24.05 0.1332
2023-05-11 2023-03-31 13F AMGEN COM 031162100 7,313 761 11.61 1,768 2.73 0.1841
2023-02-13 2022-12-31 13F AMGEN COM 031162100 6,552 439 7.18 1,721 24.82 0.1950
2022-11-10 2022-09-30 13F AMGEN COM 031162100 6,113 198 3.35 1,378 -4.24 0.1822
2022-08-09 2022-06-30 13F AMGEN COM 031162100 5,915 196 3.43 1,439 4.05 0.1933
2022-05-06 2022-03-31 13F AMGEN COM 031162100 5,719 579 11.26 1,383 19.64 0.1675
2022-02-01 2021-12-31 13F AMGEN COM 031162100 5,140 -1,428 -21.74 1,156 -17.25 0.1379
2021-11-12 2021-09-30 13F AMGEN COM 031162100 6,568 931 16.52 1,397 1.67 0.1949
2021-08-09 2021-06-30 13F AMGEN COM 031162100 5,637 181 3.32 1,374 1.18 0.1993
2021-05-12 2021-03-31 13F AMGEN COM 031162100 5,456 718 15.15 1,358 24.70 0.2204
2021-02-16 2020-12-31 13F AMGEN COM 031162100 4,738 -45 -0.94 1,089 -10.44 0.2022
2020-11-13 2020-09-30 13F AMGEN COM 031162100 4,783 -1,267 -20.94 1,216 -14.79 0.2650
2020-08-13 2020-06-30 13F AMGEN COM 031162100 6,050 -3,032 -33.38 1,427 -22.45 0.3158
2020-05-15 2020-03-31 13F Amgen Com 031162100 9,082 2,396 35.84 1,840 16.23 0.3080
2020-03-19 2019-12-31 13F/A-1 Amgen Com 031162100 6,686 883 15.22 1,583 43.52 0.1909
2020-02-03 2019-12-31 13F Amgen Com 031162100 6,686 883 1,583 5,349.1635
2019-10-24 2019-09-30 13F Amgen COM 031162100 5,803 1,428 32.64 1,103 40.69 0.1697
2019-07-24 2019-06-30 13F Amgen COM 031162100 4,375 -637 -12.71 784 -15.52 0.1241
2019-04-29 2019-03-31 13F Amgen COM 031162100 5,012 1,054 26.63 928 23.90 0.1631
2019-01-17 2018-12-31 13F AMGEN COM 031162100 3,958 85 2.19 749 -4.46 0.1996
2018-10-29 2018-09-30 13F AMGEN COM 031162100 3,873 0 0.00 784 13.29 0.2240
2018-08-08 2018-06-30 13F AMGEN COM 031162100 3,873 10 0.26 692 8.29 0.2426
2018-05-10 2018-03-31 13F AMGEN COM 031162100 3,863 109 2.90 639 -0.16 0.2317
2018-01-31 2017-12-31 13F AMGEN COM 031162100 3,754 -26 -0.69 640 -7.38 0.2552
2017-10-13 2017-09-30 13F Amgen COM 031162100 3,780 107 2.91 691 19.97 0.2851
2017-08-14 2017-06-30 13F Amgen COM 031162100 3,673 214 6.19 576 3.23 0.2546
2017-04-10 2017-03-31 13F Amgen COM 031162100 3,459 64 1.89 558 14.58 0.2452
2017-01-11 2016-12-31 13F Amgen COM 031162100 3,395 792 30.43 487 14.86 0.2443
2016-10-25 2016-09-30 13F Amgen COM 031162100 2,603 119 4.79 424 15.22 0.2766
2016-07-28 2016-06-30 13F Amgen COM 031162100 2,484 -69 -2.70 368 -1.87 0.2531
2016-04-27 2016-03-31 13F Amgen COM 031162100 2,553 169 7.09 375 -0.79 0.2430
2016-01-28 2015-12-31 13F Amgen COM 031162100 2,384 -315 -11.67 378 3.85 0.2616
2015-10-28 2015-09-30 13F Amgen COM 031162100 2,699 -34 -1.24 364 -11.86 0.2511
2015-08-12 2015-06-30 13F Amgen COM 031162100 2,733 2,733 413 0.2628
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.