Amgen Inc.
CH ˙ SWX ˙ NL0000888691
SecurityCH:AMGN / Amgen Inc.
InstitutionGreenleaf Trust
Latest Disclosed Ownership16,055 shares
Latest Disclosed Value $ 5,648,951
Greenleaf Trust reports 6.45% increase in ownership of AMGN / Amgen Inc.

On April 27, 2026 - Greenleaf Trust filed a 13F-HR form disclosing ownership of 16,055 shares of Amgen Inc. (CH:AMGN) valued at $5,648,951 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 15,082 shares of Amgen Inc.. This represents a change in shares of 6.45% 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)
2026-04-27 2026-03-31 13F Amgen Com 031162100 16,055 973 6.45 5,649 14.42 0.0311
2026-01-21 2025-12-31 13F Amgen Com 031162100 15,082 131 0.88 4,936 16.99 0.0452
2025-10-22 2025-09-30 13F Amgen Com 031162100 14,951 -1,421 -8.68 4,219 -7.70 0.0384
2025-07-17 2025-06-30 13F Amgen Com 031162100 16,372 -1,043 -5.99 4,571 -15.74 0.0404
2025-04-30 2025-03-31 13F Amgen Com 031162100 17,415 -179 -1.02 5,426 18.32 0.0495
2025-01-24 2024-12-31 13F Amgen COM 031162100 17,594 -143 -0.81 4,586 -19.77 0.0417
2024-10-22 2024-09-30 13F Amgen COM 031162100 17,737 -67 -0.38 5,715 2.75 0.0508
2024-07-22 2024-06-30 13F Amgen COM 031162100 17,804 196 1.11 5,563 11.11 0.0528
2024-04-29 2024-03-31 13F Amgen COM 031162100 17,608 81 0.46 5,006 -0.83 0.0465
2024-01-31 2023-12-31 13F Amgen COM 031162100 17,527 7 0.04 5,048 7.22 0.0541
2023-11-09 2023-09-30 13F Amgen COM 031162100 17,520 1,833 11.68 4,709 35.21 0.0543
2023-08-09 2023-06-30 13F Amgen COM 031162100 15,687 -1,346 -7.90 3,483 -15.42 0.0370
2023-05-11 2023-03-31 13F Amgen COM 031162100 17,033 666 4.07 4,118 102,825.00 0.0465
2023-01-25 2022-12-31 13F Amgen COM 031162100 16,367 348 2.17 4 -99.89 0.0544
2022-11-10 2022-09-30 13F Amgen COM 031162100 16,019 -314 -1.92 3,611 -9.13 0.0534
2022-08-12 2022-06-30 13F Amgen COM 031162100 16,333 25 0.15 3,974 0.76 0.0601
2022-04-27 2022-03-31 13F Amgen COM 031162100 16,308 3,069 23.18 3,944 32.44 0.0471
2022-02-11 2021-12-31 13F Amgen COM 031162100 13,239 -2,043 -13.37 2,978 -8.37 0.0349
2021-11-12 2021-09-30 13F Amgen COM 031162100 15,282 -26 -0.17 3,250 -12.89 0.0396
2021-08-10 2021-06-30 13F Amgen COM 031162100 15,308 137 0.90 3,731 -1.17 0.0463
2021-04-30 2021-03-31 13F Amgen COM 031162100 15,171 1,691 12.54 3,775 21.81 0.0499
2021-02-08 2020-12-31 13F Amgen COM 031162100 13,480 -595 -4.23 3,099 -13.36 0.0412
2020-10-30 2020-09-30 13F Amgen COM 031162100 14,075 -301 -2.09 3,577 5.49 0.0554
2020-08-12 2020-06-30 13F Amgen COM 031162100 14,376 2,166 17.74 3,391 37.01 0.0594
2020-04-29 2020-03-31 13F Amgen COM 031162100 12,210 255 2.13 2,475 -14.12 0.0492
2020-02-11 2019-12-31 13F Amgen COM 031162100 11,955 -708 -5.59 2,882 17.63 0.0452
2019-11-08 2019-09-30 13F Amgen COM 031162100 12,663 2,498 24.57 2,450 30.81 0.0381
2019-07-24 2019-06-30 13F Amgen COM 031162100 10,165 -2,423 -19.25 1,873 -21.66 0.0296
2019-05-08 2019-03-31 13F Amgen COM 031162100 12,588 -806 -6.02 2,391 -8.29 0.0394
2019-02-07 2018-12-31 13F Amgen COM 031162100 13,394 482 3.73 2,607 -2.61 0.0516
2018-10-29 2018-09-30 13F Amgen COM 031162100 12,912 664 5.42 2,677 18.40 0.0484
2018-08-07 2018-06-30 13F Amgen COM 031162100 12,248 976 8.66 2,261 17.64 0.0431
2018-04-30 2018-03-31 13F Amgen COM 031162100 11,272 957 9.28 1,922 7.13 0.0382
2018-02-08 2017-12-31 13F Amgen COM 031162100 10,315 -339 -3.18 1,794 -9.67 0.0364
2017-11-13 2017-09-30 13F Amgen COM 031162100 10,654 1,305 13.96 1,986 23.35 0.0436
2017-07-24 2017-06-30 13F Amgen COM 031162100 9,349 -666 -6.65 1,610 -2.01 0.0367
2017-04-28 2017-03-31 13F Amgen COM 031162100 10,015 1,737 20.98 1,643 35.79 0.0395
2017-01-24 2016-12-31 13F Amgen COM 031162100 8,278 -444 -5.09 1,210 -16.84 0.0318
2016-10-19 2016-09-30 13F Amgen COM 031162100 8,722 1,303 17.56 1,455 28.88 0.0383
2016-07-28 2016-06-30 13F Amgen COM 031162100 7,419 -1,167 -13.59 1,129 -12.28 0.0289
2016-04-28 2016-03-31 13F Amgen COM 031162100 8,586 385 4.69 1,287 -3.31 0.0350
2016-02-05 2015-12-31 13F Amgen COM 031162100 8,201 -234 -2.77 1,331 14.05 0.0402
2015-10-30 2015-09-30 13F Amgen COM 031162100 8,435 -127 -1.48 1,167 -11.19 0.0348
2015-08-12 2015-06-30 13F Amgen COM 031162100 8,562 228 2.74 1,314 -1.35 0.0379
2015-04-20 2015-03-31 13F Amgen COM 031162100 8,334 8,334 0.00 1,332 0.0400
2015-02-02 2014-12-31 13F Amgen COM 031162100 0 -8,574 -100.00 0 -100.00
2014-10-20 2014-09-30 13F Amgen COM 031162100 8,574 0 0.00 1,204 18.62 0.0397
2014-08-12 2014-06-30 13F Amgen COM 031162100 8,574 -168 -1.92 1,015 -5.84 0.0322
2014-05-13 2014-03-31 13F Amgen COM 031162100 8,742 6 0.07 1,078 8.12 0.0347
2014-02-12 2013-12-31 13F Amgen COM 031162100 8,736 0 0.00 997 1.94 0.0343
2013-10-30 2013-09-30 13F Amgen COM 031162100 8,736 -288 -3.19 978 9.89 0.0367
2013-07-17 2013-06-30 13F Amgen COM 031162100 9,024 9,024 890 0.0349
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.