First Solar, Inc.
US ˙ NasdaqGS ˙ US3364331070

SecurityFSLR / First Solar, Inc.
InstitutionQube Research & Technologies Ltd
Latest Disclosed Ownership167,952 shares
Latest Disclosed Value $ 33,130,212
Qube Research & Technologies Ltd ownership in FSLR / First Solar, Inc.

On May 15, 2026 - Qube Research & Technologies Ltd filed a 13F-HR form disclosing ownership of 167,952 shares of First Solar, Inc. (US:FSLR) valued at $33,130,212 USD as of March 31, 2026. The entity filed a previous 13F-HR on August 14, 2025 disclosing 0 shares of First Solar, Inc.. The current value of the position is $53,450,724 USD.

Qube Research & Technologies Ltd has a history of taking positions in derivatives of the underlying security (FSLR) in the form of stock options. The firm currently holds call options representing 90,200 of underlying shares valued at $17,792,852 USD and put options representing 83,400 of underlying shares valued at $16,451,484 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

FSLR / First Solar, Inc. Historical Put/Call Ratio
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)
2026-05-15 2026-03-31 13F FIRST SOLAR COM 336433107 167,952 167,952 33,130 0.0368
2025-08-14 2025-06-30 13F FIRST SOLAR COM 336433107 0 -139,755 -100.00 0 -100.00
2025-05-15 2025-03-31 13F FIRST SOLAR COM 336433107 139,755 139,755 17,669 0.0205
2024-11-14 2024-09-30 13F FIRST SOLAR COM 336433107 0 -341,908 -100.00 0 -100.00
2024-08-14 2024-06-30 13F FIRST SOLAR COM 336433107 341,908 340,507 24,304.57 77,087 32,563.56 0.1218
2024-05-14 2024-03-31 13F FIRST SOLAR COM 336433107 1,401 -59,097 -97.68 236 -97.74 0.0004
2024-02-13 2023-12-31 13F FIRST SOLAR COM 336433107 60,498 60,498 10,423 0.0203
2023-11-13 2023-09-30 13F FIRST SOLAR COM 336433107 0 -304,332 -100.00 0 -100.00
2023-08-14 2023-06-30 13F FIRST SOLAR COM 336433107 304,332 304,332 57,850 0.2103
2022-05-09 2022-03-31 13F FIRST SOLAR COM 336433107 0 -72,839 -100.00 0 -100.00
2022-02-10 2021-12-31 13F/A-1 FIRST SOLAR COM 336433107 72,839 72,839 6,349 0.0490
2022-02-01 2021-12-31 13F FIRST SOLAR COM 336433107 72,839 72,839 6,349 0.0491
2021-05-14 2021-03-31 13F FIRST SOLAR COM 336433107 0 -40,486 -100.00 0 -100.00
2021-02-16 2020-12-31 13F FIRST SOLAR COM 336433107 40,486 -17,553 -30.24 4,005 4.24 0.0569
2020-11-12 2020-09-30 13F FIRST SOLAR COM 336433107 58,039 58,039 3,842 0.0548
2020-02-13 2019-12-31 13F FIRST SOLAR COM 336433107 0 -5,005 -100.00 0 -100.00
2019-11-13 2019-09-30 13F FIRST SOLAR COM 336433107 5,005 5,005 290 0.1932
2019-02-14 2018-12-31 13F FIRST SOLAR COM 336433107 0 -2,777 -100.00 0 -100.00
2018-11-14 2018-09-30 13F FIRST SOLAR COM 336433107 2,777 2,184 368.30 134 332.26 0.0178
2018-08-15 2018-06-30 13F/A-1 FIRST SOLAR COM 336433107 593 593 31 0.0196
2018-08-14 2018-06-30 13F FIRST SOLAR COM 336433107 593 31
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F FIRST SOLAR COM Call 90,200 -41.92 17,793 -56.14 n/a n/a n/a
2026-02-17 2025-12-31 13F FIRST SOLAR COM Call 155,300 -44.87 40,569 -34.70 n/a n/a n/a
2025-11-14 2025-09-30 13F FIRST SOLAR COM Call 281,700 54.10 62,123 105.30 n/a n/a n/a
2025-08-14 2025-06-30 13F FIRST SOLAR COM Call 182,800 38.69 30,261 81.60 n/a n/a n/a
2025-05-15 2025-03-31 13F FIRST SOLAR COM Call 131,800 148.68 16,663 78.40 n/a n/a n/a
2025-02-14 2024-12-31 13F FIRST SOLAR COM Call 53,000 3,433.33 9,341 2,397.33 n/a n/a n/a
2024-11-14 2024-09-30 13F FIRST SOLAR COM Call 1,500 374 n/a n/a n/a
2024-08-14 2024-06-30 13F FIRST SOLAR COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-05-14 2024-03-31 13F FIRST SOLAR COM Call 6,600 -88.07 1,114 -88.31 n/a n/a n/a
2024-02-13 2023-12-31 13F FIRST SOLAR COM Call 55,300 81.91 9,527 93.95 n/a n/a n/a
2023-11-13 2023-09-30 13F FIRST SOLAR COM Call 30,400 4,912 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F FIRST SOLAR COM Put 83,400 -44.95 16,451 -58.43 n/a n/a n/a
2026-02-17 2025-12-31 13F FIRST SOLAR COM Put 151,500 -47.87 39,576 -38.25 n/a n/a n/a
2025-11-14 2025-09-30 13F FIRST SOLAR COM Put 290,600 -5.16 64,086 26.35 n/a n/a n/a
2025-08-14 2025-06-30 13F FIRST SOLAR COM Put 306,400 159.00 50,721 239.13 n/a n/a n/a
2025-05-15 2025-03-31 13F FIRST SOLAR COM Put 118,300 50.13 14,957 7.70 n/a n/a n/a
2025-02-14 2024-12-31 13F FIRST SOLAR COM Put 78,800 923.38 13,888 623.28 n/a n/a n/a
2024-11-14 2024-09-30 13F FIRST SOLAR COM Put 7,700 305.26 1,921 348.60 n/a n/a n/a
2024-08-14 2024-06-30 13F FIRST SOLAR COM Put 1,900 -85.93 428 -81.21 n/a n/a n/a
2024-05-14 2024-03-31 13F FIRST SOLAR COM Put 13,500 -71.15 2,279 -71.74 n/a n/a n/a
2024-02-13 2023-12-31 13F FIRST SOLAR COM Put 46,800 70.80 8,063 82.11 n/a n/a n/a
2023-11-13 2023-09-30 13F FIRST SOLAR COM Put 27,400 4,428 n/a n/a n/a
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.