Amgen Inc.
CH ˙ SWX ˙ NL0000888691
SecurityCH:AMGN / Amgen Inc.
InstitutionGuardian Capital Lp
Latest Disclosed Ownership32,299 shares
Latest Disclosed Value $ 11,364,403
Guardian Capital Lp reports 30.36% increase in ownership of AMGN / Amgen Inc.

On May 15, 2026 - Guardian Capital Lp filed a 13F-HR form disclosing ownership of 32,299 shares of Amgen Inc. (CH:AMGN) valued at $11,364,403 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 18, 2026 disclosing 24,777 shares of Amgen Inc.. This represents a change in shares of 30.36% 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 32,299 7,522 30.36 11,364 40.14 0.1981
2026-02-18 2025-12-31 13F AMGEN COM 031162100 24,777 -589 -2.32 8,110 13.29 0.2405
2025-11-12 2025-09-30 13F AMGEN COM 031162100 25,366 1,753 7.42 7,158 8.59 0.2311
2025-08-07 2025-06-30 13F AMGEN COM 031162100 23,613 500 2.16 6,593 -8.44 0.2329
2025-05-14 2025-03-31 13F AMGEN COM 031162100 23,113 -135 -0.58 7,201 18.83 0.2832
2025-02-14 2024-12-31 13F AMGEN COM 031162100 23,248 261 1.14 6,059 -18.19 0.2252
2024-11-12 2024-09-30 13F AMGEN COM 031162100 22,987 -132 -0.57 7,407 2.53 0.2712
2024-08-13 2024-06-30 13F AMGEN COM 031162100 23,119 30 0.13 7,224 10.04 0.2724
2024-05-14 2024-03-31 13F AMGEN COM 031162100 23,089 -138 -0.59 6,565 -1.87 0.2288
2024-02-08 2023-12-31 13F AMGEN COM 031162100 23,227 -235 -1.00 6,690 6.09 0.2397
2023-11-13 2023-09-30 13F AMGEN COM 031162100 23,462 -3,665 -13.51 6,306 4.70 0.2347
2023-08-14 2023-06-30 13F AMGEN COM 031162100 27,127 19 0.07 6,023 -8.10 0.1928
2023-05-15 2023-03-31 13F AMGEN COM 031162100 27,108 -116 -0.43 6,553 -8.35 0.2089
2023-02-14 2022-12-31 13F AMGEN COM 031162100 27,224 -169 -0.62 7,150 15.81 0.2354
2022-11-14 2022-09-30 13F AMGEN COM 031162100 27,393 27,393 6,174 0.2123
2020-11-16 2020-09-30 13F AMGEN COM 031162100 0 -965 -100.00 0 -100.00
2020-08-13 2020-06-30 13F AMGEN COM 031162100 965 965 228 0.0059
2020-05-15 2020-03-31 13F AMGEN COM 031162100 0 -1,099 -100.00 0 -100.00
2020-02-13 2019-12-31 13F AMGEN COM 031162100 1,099 -8 -0.72 265 23.83 0.0055
2019-11-14 2019-09-30 13F AMGEN COM 031162100 1,107 -89,430 -98.78 214 -98.72 0.0043
2019-08-14 2019-06-30 13F AMGEN COM 031162100 90,537 23,830 35.72 16,684 31.65 0.3246
2019-05-15 2019-03-31 13F AMGEN COM 031162100 66,707 -4,891 -6.83 12,673 -9.08 0.2334
2019-02-13 2018-12-31 13F AMGEN COM 031162100 71,598 12,994 22.17 13,938 14.73 0.2912
2018-11-13 2018-09-30 13F AMGEN COM 031162100 58,604 -1,157 -1.94 12,148 10.13 0.2037
2018-08-14 2018-06-30 13F AMGEN COM 031162100 59,761 -2,045 -3.31 11,031 4.70 0.1866
2018-05-14 2018-03-31 13F AMGEN COM 031162100 61,806 10,690 20.91 10,536 18.53 0.1819
2018-02-14 2017-12-31 13F AMGEN COM 031162100 51,116 -557 -1.08 8,889 -7.73 0.1311
2017-11-15 2017-09-30 13F AMGEN COM 031162100 51,673 -534 -1.02 9,634 7.14 0.1424
2017-08-14 2017-06-30 13F AMGEN COM 031162100 52,207 -7,153 -12.05 8,992 -7.67 0.1405
2017-05-15 2017-03-31 13F AMGEN COM 031162100 59,360 -1,739 -2.85 9,739 9.02 0.1483
2017-02-14 2016-12-31 13F AMGEN COM 031162100 61,099 -625 -1.01 8,933 -13.24 0.1319
2016-11-14 2016-09-30 13F AMGEN COM 031162100 61,724 9,488 18.16 10,296 29.54 0.1616
2016-08-12 2016-06-30 13F AMGEN COM 031162100 52,236 -3,833 -6.84 7,948 -5.45 0.1298
2016-05-12 2016-03-31 13F AMGEN COM 031162100 56,069 -14,347 -20.37 8,406 -26.46 0.1418
2016-02-12 2015-12-31 13F AMGEN COM 031162100 70,416 9,475 15.55 11,431 35.62 0.2195
2015-11-12 2015-09-30 13F AMGEN COM 031162100 60,941 55,858 1,098.92 8,429 980.64 0.1601
2015-08-13 2015-06-30 13F AMGEN COM 031162100 5,083 2,221 77.60 780 70.68 0.0132
2015-05-14 2015-03-31 13F AMGEN COM 031162100 2,862 514 21.89 457 22.19 0.0078
2015-02-13 2014-12-31 13F AMGEN COM 031162100 2,348 -7,616 -76.44 374 -73.29 0.0060
2014-11-12 2014-09-30 13F AMGEN COM 031162100 9,964 6,181 163.39 1,400 212.50 0.0210
2014-08-14 2014-06-30 13F AMGEN COM 031162100 3,783 -8,347 -68.81 448 -70.05 0.0065
2014-05-14 2014-03-31 13F AMGEN COM 031162100 12,130 6,470 114.31 1,496 131.58 0.0232
2014-02-13 2013-12-31 13F AMGEN COM 031162100 5,660 -6,270 -52.56 646 -51.61 0.0102
2013-11-06 2013-09-30 13F AMGEN COM 031162100 11,930 1,750 17.19 1,335 32.97 0.0218
2013-08-12 2013-06-30 13F AMGEN COM 031162100 10,180 10,180 1,004 0.0177
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.