First Solar, Inc.
US ˙ NasdaqGS ˙ US3364331070

SecurityFSLR / First Solar, Inc.
InstitutionMarex Group plc
Latest Disclosed Ownership13,807 shares
Latest Disclosed Value $ 2,723,569
Marex Group plc reports 383.44% increase in ownership of FSLR / First Solar, Inc.

On May 13, 2026 - Marex Group plc filed a 13F-HR form disclosing ownership of 13,807 shares of First Solar, Inc. (US:FSLR) valued at $2,723,569 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 2,856 shares of First Solar, Inc.. This represents a change in shares of 383.44% during the quarter. The current value of the position is $3,852,291 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)
2026-05-13 2026-03-31 13F FIRST SOLAR COM 336433107 13,807 10,951 383.44 2,724 265.01 0.0172
2026-02-12 2025-12-31 13F FIRST SOLAR COM 336433107 2,856 -13,144 -82.15 746 -78.85 0.0047
2025-11-14 2025-09-30 13F FIRST SOLAR COM 336433107 16,000 -19,993 -55.55 3,528 -40.79 0.0249
2025-08-19 2025-06-30 13F FIRST SOLAR COM 336433107 35,993 3,930 12.26 5,958 47.00 0.0517
2026-04-02 2025-03-31 13F FIRST SOLAR COM 336433107 32,063 14,137 78.86 4,054 28.30 0.0777
2026-04-02 2024-12-31 13F FIRST SOLAR COM 336433107 17,926 16,314 1,012.03 3,159 685.82 0.0538
2026-04-07 2024-09-30 13F FIRST SOLAR COM 336433107 1,612 158 10.87 402 22.94 0.0092
2026-04-02 2024-06-30 13F FIRST SOLAR COM 336433107 1,454 99 7.31 328 43.42 0.0088
2026-04-02 2024-03-31 13F FIRST SOLAR COM 336433107 1,355 -64,582 -97.95 229 -97.99 0.0074
2026-04-02 2023-12-31 13F FIRST SOLAR COM 336433107 65,937 65,937 11,360 0.4465
2026-04-02 2023-03-31 13F FIRST SOLAR COM 336433107 0 -10,093 -100.00 0 -100.00
2026-04-02 2022-12-31 13F FIRST SOLAR COM 336433107 10,093 10,093 1,512 0.2148
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.