Amgen Inc.
CH ˙ SWX ˙ NL0000888691
SecurityCH:AMGN / Amgen Inc.
InstitutionTexas Yale Capital Corp.
Latest Disclosed Ownership10,247 shares
Latest Disclosed Value $ 3,605,407
Texas Yale Capital Corp. ownership in AMGN / Amgen Inc.

On May 4, 2026 - Texas Yale Capital Corp. filed a 13F-HR form disclosing ownership of 10,247 shares of Amgen Inc. (CH:AMGN) valued at $3,605,407 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 10,247 shares of Amgen Inc.. This represents a change in shares of 0.00% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-04 2026-03-31 13F AMGEN COM 031162100 10,247 0 0.00 3,605 7.52 0.1023
2026-02-10 2025-12-31 13F AMGEN COM 031162100 10,247 0 0.00 3,354 15.98 0.1017
2025-11-07 2025-09-30 13F AMGEN COM 031162100 10,247 50 0.49 2,892 1.55 0.0910
2025-08-06 2025-06-30 13F AMGEN COM 031162100 10,197 0 0.00 2,847 -10.36 0.0933
2025-05-07 2025-03-31 13F AMGEN COM 031162100 10,197 25 0.25 3,177 19.80 0.1304
2025-02-13 2024-12-31 13F AMGEN COM 031162100 10,172 0 0.00 2,651 -19.10 0.1066
2024-11-12 2024-09-30 13F AMGEN COM 031162100 10,172 0 0.00 3,278 3.12 0.1424
2024-08-13 2024-06-30 13F AMGEN COM 031162100 10,172 75 0.74 3,178 10.73 0.1513
2024-05-08 2024-03-31 13F AMGEN COM 031162100 10,097 34 0.34 2,871 -0.97 0.1275
2024-02-13 2023-12-31 13F AMGEN COM 031162100 10,063 0 0.00 2,898 7.17 0.1380
2023-11-09 2023-09-30 13F AMGEN COM 031162100 10,063 0 0.00 2,705 21.04 0.1219
2023-08-03 2023-06-30 13F AMGEN COM 031162100 10,063 0 0.00 2,234 -8.14 0.1051
2023-05-10 2023-03-31 13F AMGEN COM 031162100 10,063 0 0.00 2,433 -7.95 0.1236
2023-02-13 2022-12-31 13F AMGEN COM 031162100 10,063 1,775 21.42 2,643 41.43 0.1507
2022-11-08 2022-09-30 13F AMGEN COM 031162100 8,288 0 0.00 1,868 -7.34 0.1197
2022-08-11 2022-06-30 13F AMGEN COM 031162100 8,288 0 0.00 2,016 0.60 0.1303
2022-05-10 2022-03-31 13F AMGEN COM 031162100 8,288 0 0.00 2,004 7.45 0.1092
2022-02-10 2021-12-31 13F AMGEN COM 031162100 8,288 0 0.00 1,865 5.85 0.0948
2021-11-08 2021-09-30 13F AMGEN COM 031162100 8,288 200 2.47 1,762 -10.60 0.0999
2021-08-05 2021-06-30 13F AMGEN COM 031162100 8,088 0 0.00 1,971 -2.04 0.1126
2021-05-12 2021-03-31 13F AMGEN COM 031162100 8,088 -313 -3.73 2,012 4.14 0.1264
2021-02-10 2020-12-31 13F AMGEN COM 031162100 8,401 0 0.00 1,932 -9.51 0.1298
2020-11-10 2020-09-30 13F AMGEN COM 031162100 8,401 0 0.00 2,135 7.77 0.1637
2020-07-31 2020-06-30 13F AMGEN COM 031162100 8,401 0 0.00 1,981 16.32 0.1611
2020-05-13 2020-03-31 13F AMGEN COM 031162100 8,401 0 0.00 1,703 -15.90 0.1675
2020-02-11 2019-12-31 13F AMGEN COM 031162100 8,401 0 0.00 2,025 24.54 0.1388
2019-10-31 2019-09-30 13F AMGEN COM 031162100 8,401 0 0.00 1,626 5.04 0.1166
2019-07-24 2019-06-30 13F AMGEN COM 031162100 8,401 -8,401 -50.00 1,548 -51.50 0.1155
2019-05-10 2019-03-31 13F AMGEN COM 031162100 16,802 8,401 100.00 3,192 95.23 0.1276
2019-02-11 2018-12-31 13F AMGEN COM 031162100 8,401 0 0.00 1,635 -6.09 0.1476
2018-11-13 2018-09-30 13F AMGEN COM 031162100 8,401 0 0.00 1,741 12.25 0.1406
2018-08-07 2018-06-30 13F AMGEN COM 031162100 8,401 0 0.00 1,551 8.31 0.1332
2018-05-03 2018-03-31 13F AMGEN COM 031162100 8,401 0 0.00 1,432 -1.98 0.1233
2018-02-07 2017-12-31 13F AMGEN COM 031162100 8,401 0 0.00 1,461 -6.70 0.1258
2017-11-08 2017-09-30 13F AMGEN COM 031162100 8,401 0 0.00 1,566 8.22 0.1352
2017-08-03 2017-06-30 13F AMGEN COM 031162100 8,401 0 0.00 1,447 5.01 0.1272
2017-05-03 2017-03-31 13F AMGEN COM 031162100 8,401 0 0.00 1,378 12.21 0.1215
2017-02-13 2016-12-31 13F AMGEN COM 031162100 8,401 0 0.00 1,228 -12.35 0.1160
2016-11-14 2016-09-30 13F AMGEN COM 031162100 8,401 0 0.00 1,401 9.62 0.1347
2016-08-12 2016-06-30 13F AMGEN COM 031162100 8,401 0 0.00 1,278 1.43 0.1270
2016-05-13 2016-03-31 13F AMGEN COM 031162100 8,401 0 0.00 1,260 -7.62 0.1297
2016-05-10 2015-12-31 13F/A-1 AMGEN COM 031162100 8,401 0 0.00 1,364 17.38 0.1227
2016-02-05 2015-12-31 13F AMGEN COM 031162100 8,401 1,364
2016-05-10 2015-09-30 13F/A-1 AMGEN COM 031162100 8,401 0 0.00 1,162 -9.92 0.1062
2015-11-10 2015-09-30 13F AMGEN COM 031162100 8,401 1,162
2016-05-10 2015-06-30 13F/A-1 AMGEN COM 031162100 8,401 0 0.00 1,290 -3.95 0.1068
2015-07-30 2015-06-30 13F AMGEN COM 031162100 8,401 1,290
2016-05-10 2015-03-31 13F/A-1 AMGEN COM 031162100 8,401 0 0.00 1,343 0.37 0.1069
2015-04-16 2015-03-31 13F AMGEN COM 031162100 8,401 1,343
2015-02-12 2014-12-31 13F AMGEN COM 031162100 8,401 2,631 45.60 1,338 65.19 0.1158
2014-12-01 2014-09-30 13F/A-1 AMGEN COM 031162100 5,770 1,535 36.25 810 61.68 0.0762
2014-11-13 2014-09-30 13F AMGEN COM 031162100 5,770 810
2014-08-12 2014-06-30 13F AMGEN COM 031162100 4,235 0 0.00 501 -4.02 0.0628
2014-08-04 2014-03-31 13F/A-1 AMGEN COM 031162100 4,235 4,235 522 0.0725
2014-05-15 2014-03-31 13F AMGEN COM 031162100 4,235 522
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.