First Solar, Inc.
GB ˙ LSE ˙ US3364331070
317,89 $ ↑2,71 (0,86%)
2026-06-04
DEL PRIS
SecurityGB:0R06 / First Solar, Inc.
InstitutionRobeco Schweiz AG
Latest Disclosed Ownership645,692 shares
Latest Disclosed Value $ 127,369,204
Robeco Schweiz AG reports 19.78% increase in ownership of 0R06 / First Solar, Inc.

On May 7, 2026 - Robeco Schweiz AG filed a 13F-HR form disclosing ownership of 645,692 shares of First Solar, Inc. (GB:0R06) valued at $126,432,951 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 539,078 shares of First Solar, Inc.. This represents a change in shares of 19.78% during the quarter. The current value of the position is $205,259,030 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)
2026-05-07 2026-03-31 13F FIRST SOLAR COM 336433107 645,692 106,614 19.78 127,369 -9.55 2.6936
2026-02-03 2025-12-31 13F FIRST SOLAR COM 336433107 539,078 -73,201 -11.96 140,823 4.29 3.1553
2025-10-27 2025-09-30 13F FIRST SOLAR COM 336433107 612,279 -19,411 -3.07 135,026 29.13 3.0355
2025-08-07 2025-06-30 13F FIRST SOLAR COM 336433107 631,690 27,679 4.58 104,570 36.93 2.4133
2025-04-30 2025-03-31 13F FIRST SOLAR COM 336433107 604,011 134,616 28.68 76,365 -7.69 1.8787
2025-02-05 2024-12-31 13F FIRST SOLAR COM 336433107 469,395 -26,805 -5.40 82,726 -33.16 1.7676
2024-11-04 2024-09-30 13F FIRST SOLAR COM 336433107 496,200 -9,500 -1.88 123,772 8.56 2.3190
2024-08-08 2024-06-30 13F FIRST SOLAR COM 336433107 505,700 -63,300 -11.12 114,015 18.71 2.1895
2024-04-25 2024-03-31 13F FIRST SOLAR COM 336433107 569,000 -75,000 -11.65 96,047 -13.43 1.6761
2024-02-14 2023-12-31 13F FIRST SOLAR COM 336433107 644,000 -159,000 -19.80 110,948 -14.49 1.8638
2023-11-08 2023-09-30 13F FIRST SOLAR COM 336433107 803,000 0 0.00 129,757 -14.99 2.1935
2023-08-14 2023-06-30 13F FIRST SOLAR COM 336433107 803,000 13,000 1.65 152,642 -11.16 2.2738
2023-05-08 2023-03-31 13F FIRST SOLAR COM 336433107 790,000 -163,500 -17.15 171,825 20.31 2.7765
2023-02-07 2022-12-31 13F FIRST SOLAR COM 336433107 953,500 -136,500 -12.52 142,825 -0.94 2.6088
2022-11-10 2022-09-30 13F FIRST SOLAR COM 336433107 1,090,000 -84,000 -7.16 144,174 80.25 2.8036
2022-08-03 2022-06-30 13F FIRST SOLAR COM 336433107 1,174,000 0 0.00 79,985 -18.64 1.4263
2022-05-13 2022-03-31 13F FIRST SOLAR COM 336433107 1,174,000 0 0.00 98,311 -3.92 1.3852
2022-02-08 2021-12-31 13F FIRST SOLAR COM 336433107 1,174,000 -29,000 -2.41 102,326 -10.90 1.3263
2021-10-13 2021-09-30 13F FIRST SOLAR COM 336433107 1,203,000 1,203,000 114,838 1.3393
2020-10-13 2020-09-30 13F FIRST SOLAR COM 336433107 0 -110,000 -100.00 0 -100.00
2020-07-07 2020-06-30 13F FIRST SOLAR COM 336433107 110,000 -640,000 -85.33 5,445 -79.87 0.1955
2020-04-10 2020-03-31 13F FIRST SOLAR COM 336433107 750,000 200,000 36.36 27,045 -12.60 1.1584
2020-02-19 2019-12-31 13F/A-1 FIRST SOLAR COM 336433107 550,000 335,000 155.81 30,943 146.19 1.1536
2020-02-13 2019-12-31 13F FIRST SOLAR COM 336433107 550,000 335,000 56 321,635.7475
2019-10-18 2019-09-30 13F FIRST SOLAR COM 336433107 215,000 -185,000 -46.25 12,569 -52.00 0.5397
2019-07-31 2019-06-30 13F FIRST SOLAR COM 336433107 400,000 -40,000 -9.09 26,188 12.64 1.1104
2019-05-14 2019-03-31 13F FIRST SOLAR COM 336433107 440,000 -50,000 -10.20 23,250 11.93 0.9617
2019-02-01 2018-12-31 13F FIRST SOLAR COM 336433107 490,000 410,000 512.50 20,771 435.06 0.9606
2018-10-30 2018-09-30 13F FIRST SOLAR COM 336433107 80,000 78,000 3,900.00 3,882 5,872.31 0.1515
2017-01-10 2016-12-31 13F/A-1 FIRST SOLAR COM 336433107 2,000 0 0.00 65 -16.67 0.0060
2016-11-15 2016-09-30 13F FIRST SOLAR COM 336433107 2,000 -84,400 -97.69 78 -98.12 0.0068
2016-08-12 2016-06-30 13F FIRST SOLAR COM 336433107 86,400 -73,700 -46.03 4,155 -62.37 0.3808
2016-05-18 2016-03-31 13F FIRST SOLAR COM 336433107 160,100 26,700 20.01 11,042 23.57 1.0600
2016-02-16 2015-12-31 13F FIRST SOLAR COM 336433107 133,400 123,550 1,254.31 8,936 2,111.88 0.7655
2015-10-27 2015-09-30 13F FIRST SOLAR COM 336433107 9,850 9,850 0.00 404 0.0377
2015-01-26 2014-12-31 13F FIRST SOLAR COM 336433107 0 -212,000 -100.00 0 -100.00
2014-10-22 2014-09-30 13F FIRST SOLAR COM 336433107 212,000 8,500 4.18 14,313 -1.49 1.1436
2014-08-08 2014-06-30 13F FIRST SOLAR COM 336433107 203,500 -55,500 -21.43 14,530 -18.27 1.1841
2014-05-05 2014-03-31 13F FIRST SOLAR COM 336433107 259,000 127,000 96.21 17,778 142.24 1.5417
2014-01-22 2013-12-31 13F FIRST SOLAR COM 336433107 132,000 132,000 7,339 0.6488
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.