Illumina, Inc.
US ˙ NasdaqGS ˙ US4523271090

SecurityILMN / Illumina, Inc.
InstitutionCwm, Llc
Latest Disclosed Ownership125,189 shares
Latest Disclosed Value $ 15,430,832
Cwm, Llc reports 7.63% decrease in ownership of ILMN / Illumina, Inc.

On May 14, 2026 - Cwm, Llc filed a 13F-HR form disclosing ownership of 125,189 shares of Illumina, Inc. (US:ILMN) valued at $15,430,796 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 135,535 shares of Illumina, Inc.. This represents a change in shares of -7.63% during the quarter. The current value of the position is $21,398,556 USD.

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)
2026-05-14 2026-03-31 13F ILLUMINA COM 452327109 125,189 -10,346 -7.63 15,431 90,664.71 0.0401
2026-01-26 2025-12-31 13F ILLUMINA COM 452327109 135,535 25,160 22.80 18 70.00 0.0482
2025-10-15 2025-09-30 13F ILLUMINA COM 452327109 110,375 33,664 43.88 10 42.86 0.0315
2025-07-25 2025-06-30 13F ILLUMINA COM 452327109 76,711 40,676 112.88 7 250.00 0.0258
2025-05-01 2025-03-31 13F ILLUMINA COM 452327109 36,035 17,967 99.44 3 0.00 0.0114
2025-02-04 2024-12-31 13F ILLUMINA COM 452327109 18,068 1,861 11.48 2 0.00 0.0100
2024-10-08 2024-09-30 13F ILLUMINA COM 452327109 16,207 10,414 179.77 2 0.0091
2024-07-10 2024-06-30 13F ILLUMINA COM 452327109 5,793 -58,520 -90.99 1 -100.00 0.0029
2024-04-05 2024-03-31 13F ILLUMINA COM 452327109 64,313 96 0.15 9 0.00 0.0429
2024-02-01 2023-12-31 13F ILLUMINA COM 452327109 64,217 -2,158 -3.25 9 -11.11 0.0481
2023-10-11 2023-09-30 13F ILLUMINA COM 452327109 66,375 -1,510 -2.22 9 -25.00 0.0558
2023-08-03 2023-06-30 13F ILLUMINA COM 452327109 67,885 22,751 50.41 13 20.00 0.0787
2023-05-01 2023-03-31 13F ILLUMINA COM 452327109 45,134 270 0.60 10 11.11 0.0709
2023-02-01 2022-12-31 13F ILLUMINA COM 452327109 44,864 -6,437 -12.55 9 -99.91 0.0668
2022-10-27 2022-09-30 13F ILLUMINA COM 452327109 51,301 49,340 2,516.06 9,788 2,603.87 0.0778
2022-07-28 2022-06-30 13F ILLUMINA COM 452327109 1,961 682 53.32 362 -19.02 0.0028
2022-04-21 2022-03-31 13F ILLUMINA COM 452327109 1,279 166 14.91 447 5.67 0.0032
2022-01-31 2021-12-31 13F ILLUMINA COM 452327109 1,113 -16,404 -93.65 423 -94.90 0.0030
2021-09-15 2021-06-30 13F/A-1 ILLUMINA COM 452327109 17,517 0 0.00 8,289 0.00 0.0661
2021-07-29 2021-06-30 13F ILLUMINA COM 452327109 17,517 0 8,289 0.0661
2021-09-15 2021-03-31 13F/A-1 ILLUMINA COM 452327109 17,517 0 0.00 8,289 0.00 0.0661
2021-04-27 2021-03-31 13F ILLUMINA COM 452327109 16,674 -843 6,404 0.0563
2021-09-15 2020-12-31 13F/A-1 ILLUMINA COM 452327109 17,517 0 0.00 8,289 0.00 0.0661
2021-01-27 2020-12-31 13F ILLUMINA COM 452327109 39,166 21,649 14,491 0.1358
2021-09-15 2020-09-30 13F/A-1 ILLUMINA COM 452327109 17,517 0 0.00 8,289 0.00 0.0661
2020-10-19 2020-09-30 13F ILLUMINA COM 452327109 29,916 12,399 9,246 0.1028
2021-09-15 2020-06-30 13F/A-1 ILLUMINA COM 452327109 17,517 0 0.00 8,289 0.00 0.0661
2020-07-22 2020-06-30 13F ILLUMINA COM 452327109 21,620 4,103 8,007 0.0950
2021-09-15 2020-03-31 13F/A-1 ILLUMINA COM 452327109 17,517 0 0.00 8,289 0.00 0.0661
2020-04-28 2020-03-31 13F ILLUMINA COM 452327109 586 -16,931 160 0.0024
2021-09-14 2019-12-31 13F/A-1 ILLUMINA COM 452327109 17,517 0 0.00 8,289 0.00 0.0661
2020-01-27 2019-12-31 13F ILLUMINA COM 452327109 498 -17,019 165 0.0021
2021-09-14 2019-09-30 13F/A-1 ILLUMINA COM 452327109 17,517 0 0.00 8,289 0.00 0.0661
2019-10-22 2019-09-30 13F ILLUMINA COM 452327109 498 -17,019 152 0.0022
2021-09-14 2019-06-30 13F/A-1 ILLUMINA COM 452327109 17,517 0 0.00 8,289 0.00 0.0661
2019-07-31 2019-06-30 13F ILLUMINA COM 452327109 483 -17,034 178 0.0029
2021-09-02 2019-03-31 13F/A-1 ILLUMINA COM 452327109 17,517 17,224 5,878.50 8,289 9,319.32 0.0661
2019-04-22 2019-03-31 13F ILLUMINA COM 452327109 276 -17 86 0.0017
2019-01-25 2018-12-31 13F ILLUMINA COM 452327109 293 275 1,527.78 88 1,157.14 0.0022
2018-10-29 2018-09-30 13F ILLUMINA COM 452327109 18 0 0.00 7 40.00 0.0002
2018-07-31 2018-06-30 13F ILLUMINA COM 452327109 18 -3 -14.29 5 0.00 0.0002
2018-04-26 2018-03-31 13F ILLUMINA COM 452327109 21 3 16.67 5 25.00 0.0002
2018-01-16 2017-12-31 13F ILLUMINA COM 452327109 18 18 4 0.0002
2016-04-18 2016-03-31 13F ILLUMINA COM 452327109 0 0 0 0.0000
2016-02-01 2015-12-31 13F ILLUMINA COM 452327109 0 -72 -100.00 0 -100.00
2015-10-30 2015-09-30 13F ILLUMINA COM 452327109 72 72 13 0.0013
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.