Amgen Inc.
US ˙ NasdaqGS ˙ US0311621009

SecurityAMGN / Amgen Inc.
InstitutionQuilter Plc
Latest Disclosed Ownership3,300 shares
Latest Disclosed Value $ 1,161,105
Quilter Plc reports 7.04% decrease in ownership of AMGN / Amgen Inc.

On May 13, 2026 - Quilter Plc filed a 13F-HR form disclosing ownership of 3,300 shares of Amgen Inc. (US:AMGN) valued at $1,161,105 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 3,550 shares of Amgen Inc.. This represents a change in shares of -7.04% during the quarter. The current value of the position is $1,116,126 USD.

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 AMGEN COM 031162100 3,300 -250 -7.04 1,161 0.00 0.0103
2026-01-21 2025-12-31 13F AMGEN COM 031162100 3,550 -18 -0.50 1,162 15.41 0.0195
2025-10-31 2025-09-30 13F AMGEN COM 031162100 3,568 -115 -3.12 1,007 -2.14 0.0173
2025-08-12 2025-06-30 13F AMGEN COM 031162100 3,683 -82 -2.18 1,028 -12.29 0.0188
2025-04-24 2025-03-31 13F AMGEN COM 031162100 3,765 231 6.54 1,173 27.25 0.0244
2025-01-29 2024-12-31 13F AMGEN COM 031162100 3,534 -215 -5.73 921 -23.70 0.0182
2024-11-12 2024-09-30 13F AMGEN COM 031162100 3,749 0 0.00 1,208 3.07 0.0246
2024-08-09 2024-06-30 13F AMGEN COM 031162100 3,749 50 1.35 1,171 11.42 0.0263
2024-05-15 2024-03-31 13F AMGEN COM 031162100 3,699 0 0.00 1,052 -71.42 0.0249
2024-01-24 2023-12-31 13F AMGEN COM 031162100 3,699 -548 -12.90 3,678 -13.22 0.0144
2023-11-01 2023-09-30 13F AMGEN COM 031162100 4,247 87 2.09 4,238 2.67 0.0167
2023-07-19 2023-06-30 13F AMGEN COM 031162100 4,160 249 6.37 4,128 6.28 0.0160
2023-05-16 2023-03-31 13F AMGEN COM 031162100 3,911 0 0.00 3,884 278.09 0.0149
2023-02-08 2022-12-31 13F AMGEN COM 031162100 3,911 -1,200 -23.48 1,027 -10.85 0.0338
2022-11-02 2022-09-30 13F AMGEN COM 031162100 5,111 -40 -0.78 1,152 -8.13 0.0413
2022-08-04 2022-06-30 13F AMGEN COM 031162100 5,151 -7 -0.14 1,254 0.48 0.0424
2022-05-20 2022-03-31 13F AMGEN COM 031162100 5,158 150 3.00 1,248 9.96 0.0339
2022-02-14 2021-12-31 13F AMGEN COM 031162100 5,008 -1,242 -19.87 1,135 -14.66 0.0296
2021-11-04 2021-09-30 13F AMGEN COM 031162100 6,250 7 0.11 1,330 -12.56 0.0371
2021-08-12 2021-06-30 13F AMGEN COM 031162100 6,243 39 0.63 1,521 -1.43 0.0437
2021-05-14 2021-03-31 13F/A-1 AMGEN COM 031162100 6,204 -209 -3.26 1,543 4.68 0.0488
2021-05-12 2021-03-31 13F AMGEN COM 031162100 6,204 -209 1,543 0.0225
2021-02-12 2020-12-31 13F AMGEN COM 031162100 6,413 -14 -0.22 1,474 -9.74 0.0505
2020-11-12 2020-09-30 13F AMGEN COM 031162100 6,427 -514 -7.41 1,633 -0.24 0.0647
2020-08-12 2020-06-30 13F AMGEN COM 031162100 6,941 131 1.92 1,637 18.54 0.0802
2020-05-08 2020-03-31 13F AMGEN COM 031162100 6,810 -205 -2.92 1,381 -18.38 0.0914
2020-02-13 2019-12-31 13F AMGEN COM 031162100 7,015 7,015 1,692 0.0993
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.