Illumina, Inc.
MX ˙ BMV ˙ US4523271090
SecurityMX:ILMN / Illumina, Inc.
InstitutionSectoral Asset Management Inc
Latest Disclosed Ownership2,132 shares
Latest Disclosed Value $ 296,071
Sectoral Asset Management Inc reports 13.75% decrease in ownership of ILMN / Illumina, Inc.

On May 15, 2026 - Sectoral Asset Management Inc filed a 13F-HR form disclosing ownership of 2,132 shares of Illumina, Inc. (MX:ILMN) valued at $296,071 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 2,472 shares of Illumina, Inc.. This represents a change in shares of -13.75% 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)
2026-05-15 2026-03-31 13F ILLUMINA COM 452327109 2,132 -340 -13.75 296 -8.64 0.2452
2026-02-09 2025-12-31 13F ILLUMINA COM 452327109 2,472 -255 -9.35 324 25.58 0.2599
2025-11-14 2025-09-30 13F ILLUMINA COM 452327109 2,727 -55 -1.98 259 -2.64 0.1599
2025-08-14 2025-06-30 13F ILLUMINA COM 452327109 2,782 -900 -24.44 265 -9.25 0.1752
2025-05-15 2025-03-31 13F ILLUMINA COM 452327109 3,682 -688 -15.74 292 -49.91 0.2274
2025-02-14 2024-12-31 13F ILLUMINA COM 452327109 4,370 -1,375 -23.93 584 -22.16 0.3898
2024-11-14 2024-09-30 13F ILLUMINA COM 452327109 5,745 -65 -1.12 749 23.60 0.4425
2024-08-13 2024-06-30 13F ILLUMINA COM 452327109 5,810 -470 -7.48 606 -29.70 0.2465
2024-05-14 2024-03-31 13F ILLUMINA COM 452327109 6,280 -320 -4.85 862 -6.10 0.3390
2024-02-14 2023-12-31 13F ILLUMINA COM 452327109 6,600 300 4.76 919 6.25 0.3957
2023-11-14 2023-09-30 13F ILLUMINA COMMON 452327109 6,300 868 15.98 865 -15.13 0.1684
2023-08-11 2023-06-30 13F ILLUMINA COM 452327109 5,432 912 20.18 1,018 -3.14 0.1698
2023-05-12 2023-03-31 13F ILLUMINA COM 452327109 4,520 -100 -2.16 1,051 12.53 0.2020
2023-02-10 2022-12-31 13F ILLUMINA COM 452327109 4,620 0 0.00 934 6.02 0.1808
2022-11-10 2022-09-30 13F ILLUMINA COM 452327109 4,620 1,200 35.09 881 39.62 0.1736
2022-08-15 2022-06-30 13F ILLUMINA COM 452327109 3,420 1,460 74.49 631 -7.88 0.1271
2022-05-10 2022-03-31 13F ILLUMINA COM 452327109 1,960 -2,000 -50.51 685 -54.55 0.1216
2022-02-11 2021-12-31 13F ILLUMINA COM 452327109 3,960 0 0.00 1,507 -6.16 0.2268
2021-11-15 2021-09-30 13F ILLUMINA COM 452327109 3,960 0 0.00 1,606 -14.30 0.1336
2021-08-16 2021-06-30 13F ILLUMINA COM 452327109 3,960 -200 -4.81 1,874 17.27 0.1516
2021-05-14 2021-03-31 13F ILLUMINA COM 452327109 4,160 90 2.21 1,598 6.11 0.1211
2021-02-12 2020-12-31 13F ILLUMINA COM 452327109 4,070 -775 -16.00 1,506 0.60 0.1061
2020-11-13 2020-09-30 13F ILLUMINA COM 452327109 4,845 2,115 77.47 1,497 48.07 0.1287
2020-08-13 2020-06-30 13F ILLUMINA COM 452327109 2,730 -6,200 -69.43 1,011 -58.55 0.0928
2020-05-13 2020-03-31 13F ILLUMINA COM 452327109 8,930 -820 -8.41 2,439 -24.58 0.4682
2020-02-12 2019-12-31 13F ILLUMINA COM 452327109 9,750 9,750 3,234 0.4825
2018-02-13 2017-12-31 13F ILLUMINA COMMON 452327109 0 -9,350 -100.00 0 -100.00
2017-11-14 2017-09-30 13F ILLUMINA COMMON 452327109 9,350 -7,500 -44.51 1,863 -36.29 0.2400
2017-08-14 2017-06-30 13F ILLUMINA COMMON 452327109 16,850 5,500 48.46 2,924 50.96 0.3198
2017-05-15 2017-03-31 13F ILLUMINA COMMON 452327109 11,350 11,350 1,937 0.2262
2014-11-13 2014-09-30 13F ILLUMINA COMMON 452327109 0 -246,789 -100.00 0 -100.00
2014-08-14 2014-06-30 13F ILLUMINA COMMON 452327109 246,789 1,800 0.73 44,062 20.98 1.8670
2014-05-14 2014-03-31 13F ILLUMINA COMMON 452327109 244,989 34,300 16.28 36,420 56.31 1.4981
2014-02-12 2013-12-31 13F ILLUMINA COMMON 452327109 210,689 -139,700 -39.87 23,300 -17.73 1.0048
2013-11-13 2013-09-30 13F ILLUMINA COMMON 452327109 350,389 -988,000 -73.82 28,322 -71.72 1.3627
2013-08-12 2013-06-30 13F ILLUMINA COMMON 452327109 1,338,389 1,338,389 100,165 2.9619
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.