Illumina, Inc.
IT ˙ BIT ˙ US4523271090
141,00 EUR ↓ -0,98 (-0,69%)
2026-06-05
PREȚUL ACȚIUNILOR
SecurityIT:1ILMN / Illumina, Inc.
InstitutionTcw Group Inc
Latest Disclosed Ownership2,522 shares
Latest Disclosed Value $ 310,862
Tcw Group Inc reports 5.08% increase in ownership of 1ILMN / Illumina, Inc.

On May 14, 2026 - Tcw Group Inc filed a 13F-HR form disclosing ownership of 2,522 shares of Illumina, Inc. (IT:1ILMN) valued at $262,187 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,400 shares of Illumina, Inc.. This represents a change in shares of 5.08% during the quarter. The current value of the position is $355,602 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 2,522 122 5.08 311 -1.27 0.0012
2026-02-17 2025-12-31 13F ILLUMINA COM 452327109 2,400 2,400 315 0.0023
2022-04-19 2022-03-31 13F ILLUMINA COM 452327109 0 -127,554 -100.00 0 -100.00
2022-01-26 2021-12-31 13F ILLUMINA COM 452327109 127,554 -1,833 -1.42 48,527 -7.53 0.3991
2021-10-26 2021-09-30 13F ILLUMINA COM 452327109 129,387 -2,162 -1.64 52,481 -15.69 0.1351
2021-07-23 2021-06-30 13F ILLUMINA COM 452327109 131,549 -6,589 -4.77 62,250 17.34 0.5394
2021-05-05 2021-03-31 13F ILLUMINA COM 452327109 138,138 -65,074 -32.02 53,053 -29.44 0.5083
2021-02-02 2020-12-31 13F ILLUMINA COM 452327109 203,212 -80,391 -28.35 75,188 -14.22 0.6545
2020-10-30 2020-09-30 13F ILLUMINA COM 452327109 283,603 -41,368 -12.73 87,656 -27.17 0.9559
2020-08-05 2020-06-30 13F ILLUMINA COM 452327109 324,971 -18,751 -5.46 120,354 28.20 1.4038
2020-05-05 2020-03-31 13F ILLUMINA COM 452327109 343,722 -123 -0.04 93,878 -17.70 1.2981
2020-02-10 2019-12-31 13F ILLUMINA COM 452327109 343,845 -321 -0.09 114,067 8.94 1.2632
2019-11-13 2019-09-30 13F ILLUMINA COM 452327109 344,166 -54,429 -13.66 104,702 -28.65 1.1929
2019-08-07 2019-06-30 13F ILLUMINA COM 452327109 398,595 -4,969 -1.23 146,743 17.04 1.5604
2019-05-13 2019-03-31 13F ILLUMINA COM 452327109 403,564 28,188 7.51 125,383 11.37 1.2008
2019-02-11 2018-12-31 13F ILLUMINA COM 452327109 375,376 -23,246 -5.83 112,586 -23.05 1.1648
2018-10-30 2018-09-30 13F ILLUMINA COM 452327109 398,622 73,117 22.46 146,318 60.95 1.1998
2018-08-01 2018-06-30 13F ILLUMINA COM 452327109 325,505 41,951 14.79 90,911 35.61 0.7373
2018-05-10 2018-03-31 13F ILLUMINA COM 452327109 283,554 -9,645 -3.29 67,038 4.65 0.5452
2018-02-09 2017-12-31 13F ILLUMINA COM 452327109 293,199 -5,664 -1.90 64,061 7.61 0.5159
2017-11-06 2017-09-30 13F ILLUMINA COM 452327109 298,863 -3,768 -1.25 59,533 13.37 0.4732
2017-08-11 2017-06-30 13F ILLUMINA COM 452327109 302,631 -9,797 -3.14 52,513 -1.50 0.4361
2017-05-11 2017-03-31 13F ILLUMINA COM 452327109 312,428 -102,672 -24.73 53,313 0.31 0.4447
2017-02-10 2016-12-31 13F ILLUMINA COM 452327109 415,100 -368,128 -47.00 53,149 -62.65 0.4001
2016-11-14 2016-09-30 13F ILLUMINA COM 452327109 783,228 -167,633 -17.63 142,282 6.59 1.0808
2016-08-12 2016-06-30 13F/A-1 ILLUMINA COM 452327109 950,861 30,900 3.36 133,482 -10.50 1.0086
2016-08-11 2016-06-30 13F ILLUMINA COM 452327109 950,861 133,482
2016-05-16 2016-03-31 13F ILLUMINA COM 452327109 919,961 -67,235 -6.81 149,135 -21.30 1.0939
2016-02-16 2015-12-31 13F ILLUMINA COM 452327109 987,196 51,536 5.51 189,488 15.18 1.3606
2015-11-13 2015-09-30 13F ILLUMINA COM 452327109 935,660 -110,718 -10.58 164,508 -28.00 1.1804
2015-08-12 2015-06-30 13F ILLUMINA COM 452327109 1,046,378 -113,527 -9.79 228,487 6.11 1.4714
2015-05-13 2015-03-31 13F ILLUMINA COM 452327109 1,159,905 -158,197 -12.00 215,325 -11.50 1.0337
2015-02-13 2014-12-31 13F ILLUMINA COM 452327109 1,318,102 252,713 23.72 243,295 39.31 1.0178
2014-11-14 2014-09-30 13F ILLUMINA COM 452327109 1,065,389 107,942 11.27 174,638 2.16 0.7023
2014-08-14 2014-06-30 13F ILLUMINA COM 452327109 957,447 412,294 75.63 170,942 110.93 0.7040
2014-05-13 2014-03-31 13F ILLUMINA COM 452327109 545,153 444,915 443.86 81,043 630.84 0.3365
2014-02-18 2013-12-31 13F/A-1 ILLUMINA COM 452327109 100,238 -6,172 -5.80 11,089 28.93 0.0467
2014-02-14 2013-12-31 13F ILLUMINA COM 452327109 11,089 100,238
2013-11-14 2013-09-30 13F ILLUMINA COM 452327109 106,410 -16,968 -13.75 8,601 -6.86 0.0397
2013-08-14 2013-06-30 13F/A-1 ILLUMINA COM 452327109 123,378 123,378 9,234 0.0455
2013-08-14 2013-06-30 13F ILLUMINA COM 452327109 123,378 9,234
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.