Amgen Inc.
CH ˙ SWX ˙ NL0000888691
SecurityCH:AMGN / Amgen Inc.
InstitutionBlue Square Asset Management, Llc
Latest Disclosed Ownership15,087 shares
Latest Disclosed Value $ 5,308,449
Blue Square Asset Management, Llc reports 0.49% increase in ownership of AMGN / Amgen Inc.

On April 15, 2026 - Blue Square Asset Management, Llc filed a 13F-HR form disclosing ownership of 15,087 shares of Amgen Inc. (CH:AMGN) valued at $5,308,449 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 15,013 shares of Amgen Inc.. This represents a change in shares of 0.49% 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)
2026-04-15 2026-03-31 13F AMGEN INC COM Common Stock 031162100 15,087 74 0.49 5,308 8.04 2.5206
2026-01-20 2025-12-31 13F AMGEN INC COM Common Stock 031162100 15,013 -340 -2.21 4,914 13.41 2.1816
2025-10-28 2025-09-30 13F AMGEN INC COM Exchange-Traded Equity Securities 031162100 15,353 44 0.29 4,333 1.36 1.8891
2025-07-22 2025-06-30 13F AMGEN INC COM Exchange-Traded Equity Securities 031162100 15,309 1,241 8.82 4,274 -2.46 2.0017
2025-05-01 2025-03-31 13F AMGEN INC COM Common Stock 031162100 14,068 -203 -1.42 4,383 17.83 2.3589
2025-01-21 2024-12-31 13F AMGEN INC COM Exchange-Traded Equity Securities 031162100 14,271 7,277 104.05 3,720 65.07 1.8538
2024-10-29 2024-09-30 13F AMGEN INC COM Common Stock 031162100 6,994 126 1.83 2,254 5.03 1.2108
2024-08-07 2024-06-30 13F AMGEN COM 031162100 6,868 268 4.06 2,146 14.34 1.2510
2024-05-03 2024-03-31 13F AMGEN COM 031162100 6,600 -22 -0.33 1,877 -1.63 1.2453
2024-02-06 2023-12-31 13F AMGEN COM 031162100 6,622 1,387 26.49 1,907 35.63 1.2697
2023-11-08 2023-09-30 13F AMGEN COM 031162100 5,235 1,216 30.26 1,407 57.62 1.0362
2023-07-24 2023-06-30 13F AMGEN COM 031162100 4,019 2,401 148.39 892 128.13 0.6346
2023-05-11 2023-03-31 13F AMGEN COM 031162100 1,618 1,618 391 0.2569
2022-11-14 2022-09-30 13F AMGEN INC COM COM 031162100 0 -4,133 -100.00 0 -100.00
2022-08-11 2022-06-30 13F AMGEN INC COM COM 031162100 4,133 -2,642 -39.00 1,006 -38.58 2.1636
2022-05-02 2022-03-31 13F AMGEN INC COM COM 031162100 6,775 -37 -0.54 1,638 6.92 1.3673
2022-02-09 2021-12-31 13F AMGEN INC COM COM 031162100 6,812 57 0.84 1,532 6.69 0.9511
2021-11-15 2021-09-30 13F AMGEN INC COM COM 031162100 6,755 153 2.32 1,436 -10.75 0.8979
2021-08-04 2021-06-30 13F AMGEN INC COM COM 031162100 6,602 684 11.56 1,609 9.31 0.9882
2021-05-14 2021-03-31 13F AMGEN INC COM COM 031162100 5,918 250 4.41 1,472 12.97 0.9392
2021-02-08 2020-12-31 13F AMGEN INC COM COM 031162100 5,668 -1,848 -24.59 1,303 -31.78 0.8697
2020-11-10 2020-09-30 13F AMGEN INC COM COM 031162100 7,516 1,407 23.03 1,910 32.55 1.3188
2020-08-11 2020-06-30 13F AMGEN INC COM COM 031162100 6,109 -1,260 -17.10 1,441 -3.55 0.9931
2020-04-28 2020-03-31 13F AMGEN INC COM COM 031162100 7,369 17 0.23 1,494 -15.69 1.3812
2020-02-04 2019-12-31 13F AMGEN INC COM COM 031162100 7,352 -3,364 -31.39 1,772 -14.56 1.3809
2019-11-08 2019-09-30 13F AMGEN COM 031162100 10,716 10,716 2,074 1.6303
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.