Amgen Inc.
MX ˙ BMV ˙ NL0000888691
SecurityMX:AMGN / Amgen Inc.
InstitutionSittner & Nelson, Llc
Latest Disclosed Ownership7,283 shares
Latest Disclosed Value $ 2,562,634
Sittner & Nelson, Llc reports 1.34% decrease in ownership of AMGN / Amgen Inc.

On May 11, 2026 - Sittner & Nelson, Llc filed a 13F-HR form disclosing ownership of 7,283 shares of Amgen Inc. (MX:AMGN) valued at $2,562,634 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 7,382 shares of Amgen Inc.. This represents a change in shares of -1.34% 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)
2026-05-11 2026-03-31 13F AMGEN COM 031162100 7,283 -99 -1.34 2,563 -9.69 0.8665
2026-02-10 2025-12-31 13F AMGEN COM 031162100 7,382 106 1.46 2,837 38.19 1.0040
2025-11-14 2025-09-30 13F AMGEN INC COM COM 031162100 7,276 30 0.41 2,053 1.48 0.7463
2025-08-08 2025-06-30 13F AMGEN INC COM COM 031162100 7,246 -183 -2.46 2,023 -12.58 0.8138
2025-05-13 2025-03-31 13F AMGEN INC COM COM 031162100 7,429 6 0.08 2,314 19.65 0.9875
2025-02-11 2024-12-31 13F AMGEN INC COM COM 031162100 7,423 151 2.08 1,935 -17.46 0.8385
2024-10-31 2024-09-30 13F AMGEN INC COM COM 031162100 7,272 -116 -1.57 2,343 1.52 1.0478
2024-08-13 2024-06-30 13F AMGEN INC COM COM 031162100 7,388 5 0.07 2,308 9.96 1.1366
2024-05-10 2024-03-31 13F AMGEN INC COM COM 031162100 7,383 -140 -1.86 2,099 -3.09 1.0575
2024-02-13 2023-12-31 13F AMGEN INC COM COM 031162100 7,523 -20 -0.27 2,167 6.86 1.1580
2023-11-13 2023-09-30 13F AMGEN INC COM COM 031162100 7,543 -264 -3.38 2,027 16.96 1.1678
2023-08-14 2023-06-30 13F AMGEN INC COM COM 031162100 7,807 -346 -4.24 1,733 -12.03 0.9521
2023-05-09 2023-03-31 13F AMGEN INC COM COM 031162100 8,153 -221 -2.64 1,971 -10.41 1.1311
2023-02-02 2022-12-31 13F AMGEN INC COM COM 031162100 8,374 5 0.06 2,199 16.60 1.3447
2022-11-14 2022-09-30 13F AMGEN INC COM COM 031162100 8,369 280 3.46 1,886 -4.17 1.2662
2022-08-12 2022-06-30 13F AMGEN INC COM COM 031162100 8,089 405 5.27 1,968 5.92 1.2844
2022-05-10 2022-03-31 13F AMGEN INC COM COM 031162100 7,684 255 3.43 1,858 11.19 1.0754
2022-02-09 2021-12-31 13F AMGEN INC COM COM 031162100 7,429 116 1.59 1,671 7.46 0.9726
2021-11-12 2021-09-30 13F AMGEN INC COM COM 031162100 7,313 574 8.52 1,555 -5.36 1.0041
2021-08-12 2021-06-30 13F AMGEN INC COM COM 031162100 6,739 54 0.81 1,643 -1.20 1.1578
2021-05-06 2021-03-31 13F AMGEN INC COM COM 031162100 6,685 17 0.25 1,663 8.48 1.2405
2021-02-16 2020-12-31 13F AMGEN INC COM COM 031162100 6,668 6,668 1,533 1.3748
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.