Amgen Inc.
CH ˙ SWX ˙ NL0000888691
SecurityCH:AMGN / Amgen Inc.
InstitutionQsemble Capital Management, LP
Latest Disclosed Ownership32,165 shares
Latest Disclosed Value $ 11,317,255
Qsemble Capital Management, LP ownership in AMGN / Amgen Inc.

On May 7, 2026 - Qsemble Capital Management, LP filed a 13F-HR form disclosing ownership of 32,165 shares of Amgen Inc. (CH:AMGN) valued at $11,317,255 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 13, 2025 disclosing 0 shares of Amgen Inc..

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 32,165 32,165 11,317 0.8646
2025-11-13 2025-09-30 13F AMGEN COM 031162100 0 -14,827 -100.00 0 -100.00
2025-08-11 2025-06-30 13F AMGEN COM 031162100 14,827 -9,422 -38.86 4,140 -45.21 0.3968
2025-05-12 2025-03-31 13F AMGEN COM 031162100 24,249 5,100 26.63 7,555 51.38 0.8026
2025-02-11 2024-12-31 13F AMGEN COM 031162100 19,149 18,436 2,585.69 4,991 2,079.04 0.6645
2024-11-13 2024-09-30 13F AMGEN COM 031162100 713 713 230 0.0423
2024-08-07 2024-06-30 13F AMGEN COM 031162100 0 -6,019 -100.00 0 -100.00
2024-05-07 2024-03-31 13F AMGEN COM 031162100 6,019 978 19.40 1,711 17.92 0.3741
2024-02-07 2023-12-31 13F AMGEN COM 031162100 5,041 5,041 1,452 0.3638
2023-11-07 2023-09-30 13F AMGEN COM 031162100 0 -4,600 -100.00 0 -100.00
2023-08-11 2023-06-30 13F AMGEN COM 031162100 4,600 2,250 95.74 1,021 79.75 0.7247
2023-05-10 2023-03-31 13F AMGEN COM 031162100 2,350 -3,000 -56.07 568 -59.57 0.3828
2023-02-09 2022-12-31 13F AMGEN COM 031162100 5,350 5,350 1,405 0.9768
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.