First Solar, Inc.
US ˙ NasdaqGS ˙ US3364331070

SecurityFSLR / First Solar, Inc.
InstitutionMan Group plc
Latest Disclosed Ownership483,068 shares
Latest Disclosed Value $ 95,289,993
Man Group plc ownership in FSLR / First Solar, Inc.

On May 15, 2026 - Man Group plc filed a 13F-HR form disclosing ownership of 483,068 shares of First Solar, Inc. (US:FSLR) valued at $95,289,994 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 56,645 shares of First Solar, Inc.. This represents a change in shares of 752.80% during the quarter. The current value of the position is $153,736,391 USD.

Man Group plc 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 9,600 of underlying shares valued at $1,893,696 USD and put options representing 9,600 of underlying shares valued at $1,893,696 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 483,068 426,423 752.80 95,290 543.98 0.1064
2026-02-17 2025-12-31 13F FIRST SOLAR COM 336433107 56,645 8,675 18.08 14,797 39.88 0.0252
2025-11-14 2025-09-30 13F FIRST SOLAR COM 336433107 47,970 26,471 123.13 10,579 197.30 0.0184
2025-08-14 2025-06-30 13F FIRST SOLAR COM 336433107 21,499 -48,801 -69.42 3,559 -59.97 0.0068
2025-05-15 2025-03-31 13F FIRST SOLAR COM 336433107 70,300 26,495 60.48 8,888 15.13 0.0225
2025-02-14 2024-12-31 13F FIRST SOLAR COM 336433107 43,805 14,406 49.00 7,720 5.28 0.0203
2024-11-14 2024-09-30 13F FIRST SOLAR COM 336433107 29,399 1,036 3.65 7,333 14.69 0.0191
2024-08-14 2024-06-30 13F FIRST SOLAR COM 336433107 28,363 -86,821 -75.38 6,395 -67.11 0.0161
2024-05-15 2024-03-31 13F FIRST SOLAR COM 336433107 115,184 -63,306 -35.47 19,443 -36.77 0.0490
2024-02-14 2023-12-31 13F FIRST SOLAR COM 336433107 178,490 30,750 17.58 0.0856
2023-11-14 2023-09-30 13F FIRST SOLAR COM 336433107 26,152 -45.55 0.0810
2023-08-14 2023-06-30 13F FIRST SOLAR COM 336433107 252,654 48,027 90.15 0.1481
2023-05-15 2023-03-31 13F FIRST SOLAR COM 336433107 25,257 73.22 0.0898
2023-02-14 2022-12-31 13F FIRST SOLAR COM 336433107 97,348 62,635 180.44 14,582 217.60 0.0523
2022-11-14 2022-09-30 13F FIRST SOLAR COM 336433107 34,713 4,591 -35.39 0.0213
2022-08-15 2022-06-30 13F FIRST SOLAR COM 336433107 7,106 31.30 0.0301
2022-05-16 2022-03-31 13F FIRST SOLAR COM 336433107 64,628 -3,874 -5.66 5,412 -9.36 0.0188
2022-02-14 2021-12-31 13F FIRST SOLAR COM 336433107 68,502 68,502 5,971 0.0192
2021-11-15 2021-09-30 13F FIRST SOLAR COM 336433107 0 -25,874 -100.00 0 -100.00
2021-08-16 2021-06-30 13F FIRST SOLAR COM 336433107 25,874 -18,640 -41.87 2,342 -39.75 0.0082
2021-05-17 2021-03-31 13F FIRST SOLAR COM 336433107 44,514 -11,117 -19.98 3,887 -29.37 0.0171
2021-02-16 2020-12-31 13F FIRST SOLAR COM 336433107 55,631 33,775 154.53 5,503 280.30 0.0242
2020-11-16 2020-09-30 13F FIRST SOLAR COM 336433107 21,856 21,856 1,447 0.0057
2019-08-14 2019-06-30 13F FIRST SOLAR COM 336433107 0 -4,705 -100.00 0 -100.00
2019-05-15 2019-03-31 13F FIRST SOLAR COM 336433107 4,705 -2,295 -32.79 248 -16.50 0.0009
2019-02-14 2018-12-31 13F FIRST SOLAR COM 336433107 7,000 7,000 297 0.0013
2018-11-14 2018-09-30 13F FIRST SOLAR COM 336433107 0 -539,978 -100.00 0 -100.00
2018-08-14 2018-06-30 13F FIRST SOLAR COM 336433107 539,978 -376,511 -41.08 28,435 -56.29 0.1170
2018-05-15 2018-03-31 13F FIRST SOLAR COM 336433107 916,489 916,489 65,053 0.2977
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 9,600 -67.01 1,894 -75.10 n/a n/a n/a
2026-02-17 2025-12-31 13F FIRST SOLAR COM Call 29,100 -40.12 7,602 -29.08 n/a n/a n/a
2025-11-14 2025-09-30 13F FIRST SOLAR COM Call 48,600 -47.00 10,718 -29.40 n/a n/a n/a
2025-08-14 2025-06-30 13F FIRST SOLAR COM Call 91,700 52.07 15,180 99.13 n/a n/a n/a
2025-05-15 2025-03-31 13F FIRST SOLAR COM Call 60,300 7,624 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 9,600 -67.01 1,894 -75.10 n/a n/a n/a
2026-02-17 2025-12-31 13F FIRST SOLAR COM Put 29,100 -18.26 7,602 -3.17 n/a n/a n/a
2025-11-14 2025-09-30 13F FIRST SOLAR COM Put 35,600 -28.08 7,851 -4.20 n/a n/a n/a
2025-08-14 2025-06-30 13F FIRST SOLAR COM Put 49,500 -17.91 8,194 7.49 n/a n/a n/a
2025-05-15 2025-03-31 13F FIRST SOLAR COM Put 60,300 7,624 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.