Amgen Inc.
CH ˙ SWX ˙ NL0000888691
SecurityCH:AMGN / Amgen Inc.
InstitutionValley Brook Capital Group, Inc.
Latest Disclosed Ownership4,218 shares
Latest Disclosed Value $ 1,484,124
Valley Brook Capital Group, Inc. reports 2.55% increase in ownership of AMGN / Amgen Inc.

On May 8, 2026 - Valley Brook Capital Group, Inc. filed a 13F-HR form disclosing ownership of 4,218 shares of Amgen Inc. (CH:AMGN) valued at $1,484,124 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 4,113 shares of Amgen Inc.. This represents a change in shares of 2.55% 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)
2026-05-08 2026-03-31 13F AMGEN COM 031162100 4,218 105 2.55 1,484 10.25 0.9950
2026-01-23 2025-12-31 13F AMGEN COM 031162100 4,113 -90 -2.14 1,346 13.59 0.8908
2025-11-04 2025-09-30 13F AMGEN COM 031162100 4,203 -13 -0.31 1,186 0.68 0.7973
2025-07-25 2025-06-30 13F AMGEN COM 031162100 4,216 -5 -0.12 1,177 -10.49 0.8812
2025-05-13 2025-03-31 13F AMGEN COM 031162100 4,221 -343 -7.52 1,315 10.60 1.0323
2025-01-29 2024-12-31 13F AMGEN COM 031162100 4,564 -598 -11.58 1,190 -28.50 0.8887
2024-10-31 2024-09-30 13F AMGEN COM 031162100 5,162 -13 -0.25 1,663 2.84 1.1947
2024-07-26 2024-06-30 13F AMGEN COM 031162100 5,175 310 6.37 1,617 16.92 1.2607
2024-05-01 2024-03-31 13F AMGEN COM 031162100 4,865 135 2.85 1,383 1.54 1.1054
2024-02-06 2023-12-31 13F AMGEN COM 031162100 4,730 310 7.01 1,362 14.74 1.1866
2023-11-03 2023-09-30 13F AMGEN COM 031162100 4,420 150 3.51 1,188 25.21 1.1743
2023-07-31 2023-06-30 13F AMGEN COM 031162100 4,270 -270 -5.95 948 -13.58 0.8753
2023-05-04 2023-03-31 13F AMGEN COM 031162100 4,540 -100 -2.16 1,098 -9.93 1.0122
2023-02-13 2022-12-31 13F AMGEN COM 031162100 4,640 20 0.43 1,219 17.00 1.1685
2022-11-03 2022-09-30 13F AMGEN COM 031162100 4,620 0 0.00 1,041 -7.38 1.1368
2022-08-08 2022-06-30 13F AMGEN COM 031162100 4,620 25 0.54 1,124 1.17 1.1589
2022-05-02 2022-03-31 13F AMGEN COM 031162100 4,595 260 6.00 1,111 13.95 0.9591
2022-02-03 2021-12-31 13F AMGEN COM 031162100 4,335 85 2.00 975 7.97 0.8412
2021-10-21 2021-09-30 13F AMGEN COM 031162100 4,250 -175 -3.95 903 -16.23 0.8943
2021-07-22 2021-06-30 13F AMGEN COM 031162100 4,425 112 2.60 1,078 0.47 1.0278
2021-05-06 2021-03-31 13F AMGEN COM 031162100 4,313 23 0.54 1,073 8.82 0.9713
2021-03-19 2020-12-31 13F AMGEN COM 031162100 4,290 4,290 986 0.9750
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.