First Solar, Inc.
MX ˙ BMV ˙ US3364331070
SecurityMX:FSLR / First Solar, Inc.
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership101,500 shares
Latest Disclosed Value $ 20,021,890
Renaissance Technologies Llc ownership in FSLR / First Solar, Inc.

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 101,500 shares of First Solar, Inc. (MX:FSLR) valued at $20,021,890 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 13, 2024 disclosing 0 shares of First Solar, Inc..

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 FIRST SOLAR COM 336433107 101,500 101,500 20,022 0.0313
2024-11-13 2024-09-30 13F FIRST SOLAR COM 336433107 0 -120,100 -100.00 0 -100.00
2024-08-09 2024-06-30 13F FIRST SOLAR COM 336433107 120,100 120,100 27,078 0.0459
2023-11-14 2023-09-30 13F FIRST SOLAR COM 336433107 0 -164,754 -100.00 0 -100.00
2023-08-11 2023-06-30 13F FIRST SOLAR COM 336433107 164,754 -1,271,296 -88.53 31 -90.06 0.0451
2023-05-12 2023-03-31 13F FIRST SOLAR COM 336433107 1,436,050 -82,351 -5.42 312 37.44 0.4145
2023-02-13 2022-12-31 13F FIRST SOLAR COM 336433107 1,518,401 1,385,912 1,046.06 227 -98.70 0.3112
2022-11-14 2022-09-30 13F FIRST SOLAR COM 336433107 132,489 132,489 17,524 0.0248
2022-08-12 2022-06-30 13F FIRST SOLAR COM 336433107 0 -931,000 -100.00 0 -100.00
2022-05-13 2022-03-31 13F FIRST SOLAR COM 336433107 931,000 397,100 74.38 77,962 67.53 0.0915
2022-02-11 2021-12-31 13F FIRST SOLAR COM 336433107 533,900 533,900 46,535 0.0579
2021-05-13 2021-03-31 13F FIRST SOLAR COM 336433107 0 -313,717 -100.00 0 -100.00
2021-02-10 2020-12-31 13F FIRST SOLAR COM 336433107 313,717 252,296 410.77 31,033 663.23 0.0337
2020-11-13 2020-09-30 13F FIRST SOLAR COM 336433107 61,421 61,421 -80.42 4,066 -86.90 0.0041
2018-11-13 2018-09-30 13F FIRST SOLAR COM 336433107 0 -104,600 -100.00 0 -100.00
2018-08-13 2018-06-30 13F FIRST SOLAR COM 336433107 104,600 0 0.00 7,425 0.00 0.0081
2018-05-14 2018-03-31 13F FIRST SOLAR COM 336433107 104,600 -552,100 -84.07 7,425 -83.25 0.0081
2018-02-13 2017-12-31 13F FIRST SOLAR COM 336433107 656,700 541,100 468.08 44,340 735.97 0.0489
2017-11-13 2017-09-30 13F FIRST SOLAR COM 336433107 115,600 -23,700 -17.01 5,304 -4.52 0.0062
2017-08-11 2017-06-30 13F FIRST SOLAR COM 336433107 139,300 139,300 20.50 5,555 4.73 0.0071
2016-08-12 2016-06-30 13F FIRST SOLAR COM 336433107 0 -472,400 -100.00 0 -100.00
2016-05-13 2016-03-31 13F FIRST SOLAR COM 336433107 472,400 472,400 0.00 32,345 0.0615
2016-02-11 2015-12-31 13F FIRST SOLAR COM 336433107 0 0 0 0.0000
2015-11-12 2015-09-30 13F FIRST SOLAR COM 336433107 0 -260,100 -100.00 0 -100.00
2015-08-14 2015-06-30 13F FIRST SOLAR COM 336433107 260,100 260,100 0.00 12,219 0.0278
2015-05-13 2015-03-31 13F FIRST SOLAR COM 336433107 0 -71,900 -100.00 0 -100.00
2015-02-13 2014-12-31 13F FIRST SOLAR COM 336433107 71,900 3,000 4.35 3,206 -29.29 0.0077
2014-11-12 2014-09-30 13F FIRST SOLAR COM 336433107 68,900 -616,200 -89.94 4,534 -90.69 0.0124
2014-08-13 2014-06-30 13F FIRST SOLAR COM 336433107 685,100 39,087 6.05 48,683 7.98 0.1135
2014-05-14 2014-03-31 13F FIRST SOLAR COM 336433107 646,013 475,513 278.89 45,085 383.95 0.1081
2014-02-14 2013-12-31 13F FIRST SOLAR COM 336433107 170,500 170,500 -73.61 9,316 -79.34 0.0223
2013-11-13 2013-09-30 13F FIRST SOLAR COM 336433107 0 -212,800 -100.00 0 -100.00
2013-08-12 2013-06-30 13F FIRST SOLAR COM 336433107 212,800 212,800 9,536 0.0250
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.