퍼스트솔라(주)
MX ˙ BMV ˙ US3364331070
SecurityMX:FSLR / First Solar, Inc.
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership18,404 shares
Latest Disclosed Value $ 3,629,453
Janus Henderson Group Plc reports 19.68% increase in ownership of FSLR / First Solar, Inc.

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 18,404 shares of First Solar, Inc. (MX:FSLR) valued at $3,629,453 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 15,378 shares of First Solar, Inc.. This represents a change in shares of 19.68% 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)
2026-05-18 2026-03-31 13F/A-1 FIRST SOLAR COM 336433107 18,404 3,026 19.68 3,629 -9.68 0.0006
2026-05-15 2026-03-31 13F FIRST SOLAR COM 336433107 18,404 3,026 19.68 3,629 -9.68 0.0007
2026-02-17 2025-12-31 13F FIRST SOLAR COM 336433107 15,378 -3,256 -17.47 4,019 -2.19 0.0018
2025-11-14 2025-09-30 13F FIRST SOLAR COM 336433107 18,634 3,232 20.98 4,108 61.22 0.0019
2025-08-14 2025-06-30 13F FIRST SOLAR COM 336433107 15,402 194 1.28 2,549 31.68 0.0012
2025-05-15 2025-03-31 13F FIRST SOLAR COM 336433107 15,208 -379 -2.43 1,935 -29.56 0.0011
2025-02-14 2024-12-31 13F FIRST SOLAR COM 336433107 15,587 -355 -2.23 2,748 -30.89 0.0014
2024-11-14 2024-09-30 13F FIRST SOLAR COM 336433107 15,942 -1,265 -7.35 3,975 2.50 0.0020
2024-08-14 2024-06-30 13F FIRST SOLAR COM 336433107 17,207 -680 -3.80 3,879 28.50 0.0021
2024-05-15 2024-03-31 13F FIRST SOLAR COM 336433107 17,887 1,161 6.94 3,019 4.72 0.0016
2024-02-14 2023-12-31 13F FIRST SOLAR COM 336433107 16,726 3,671 28.12 2,883 36.65 0.0017
2023-11-14 2023-09-30 13F FIRST SOLAR COM 336433107 13,055 244 1.90 2,110 -13.35 0.0014
2023-08-14 2023-06-30 13F FIRST SOLAR COM 336433107 12,811 -870 -6.36 2,435 -18.16 0.0015
2023-05-15 2023-03-31 13F FIRST SOLAR COM 336433107 13,681 7,290 114.07 2,975 210.76 0.0020
2023-02-14 2022-12-31 13F FIRST SOLAR COM 336433107 6,391 -11,287 -63.85 957 -59.09 0.0007
2023-01-13 2022-09-30 13F/A-1 FIRST SOLAR COM 336433107 17,678 -1,723 -8.88 2,339 76.93 0.0018
2022-11-14 2022-09-30 13F FIRST SOLAR COM 336433107 17,678 -1,723 2,339 0.0018
2022-08-15 2022-06-30 13F FIRST SOLAR COM 336433107 19,401 -741 -3.68 1,322 -21.64 0.0009
2022-05-16 2022-03-31 13F FIRST SOLAR COM 336433107 20,142 -862 -4.10 1,687 -7.86 0.0008
2022-02-14 2021-12-31 13F FIRST SOLAR COM 336433107 21,004 -24,328 -53.67 1,831 -57.68 0.0008
2021-11-16 2021-09-30 13F FIRST SOLAR COM 336433107 45,332 42,105 1,304.77 4,327 1,381.85 0.0019
2021-08-16 2021-06-30 13F FIRST SOLAR COM 336433107 3,227 -386 -10.68 292 -7.30 0.0001
2021-05-17 2021-03-31 13F FIRST SOLAR COM 336433107 3,613 -635 -14.95 315 -25.00 0.0001
2021-02-16 2020-12-31 13F FIRST SOLAR COM 336433107 4,248 266 6.68 420 59.09 0.0002
2020-11-16 2020-09-30 13F FIRST SOLAR COM 336433107 3,982 3,982 264 0.0001
2020-05-14 2020-03-31 13F FIRST SOLAR COM 336433107 0 -21,102 -100.00 0 -100.00
2020-02-18 2019-12-31 13F FIRST SOLAR COM 336433107 21,102 -30,201 -58.87 1,181 -60.32 0.0006
2019-11-14 2019-09-30 13F FIRST SOLAR COM 336433107 51,303 0 0.00 2,976 -11.69 0.0016
2019-07-31 2019-06-30 13F FIRST SOLAR COM 336433107 51,303 51,303 3,370 0.0018
2019-02-06 2018-12-31 13F FIRST SOLAR COM 336433107 0 -47,300 -100.00 0 -100.00
2018-11-09 2018-09-30 13F FIRST SOLAR COM 336433107 47,300 -42,400 -47.27 2,290 -51.52 0.0012
2018-08-10 2018-06-30 13F FIRST SOLAR COM 336433107 89,700 24,200 36.95 4,724 1.61 0.0027
2018-05-14 2018-03-31 13F FIRST SOLAR COM 336433107 65,500 -25,700 -28.18 4,649 -24.50 0.0027
2018-03-12 2017-12-31 13F/A-1 FIRST SOLAR COM 336433107 91,200 58,100 175.53 6,158 305.40 0.0038
2018-02-09 2017-12-31 13F FIRST SOLAR COM 336433107 91,200 58,100 6,158
2017-11-14 2017-09-30 13F FIRST SOLAR COM 336433107 33,100 33,100 1,519 0.0010
2016-10-24 2016-09-30 13F FIRST SOLAR COM 336433107 0 -4,912 -100.00 0 -100.00
2016-07-29 2016-06-30 13F FIRST SOLAR COM 336433107 4,912 0 0.00 238 -29.17 0.0020
2016-05-12 2016-03-31 13F FIRST SOLAR COM 336433107 4,912 4,912 336 0.0027
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.