First Solar, Inc.
US ˙ NasdaqGS ˙ US3364331070

SecurityFSLR / First Solar, Inc.
InstitutionSignaturefd, Llc
Latest Disclosed Ownership1,882 shares
Latest Disclosed Value $ 371,241
Signaturefd, Llc ownership in FSLR / First Solar, Inc.

On April 7, 2026 - Signaturefd, Llc filed a 13F-HR form disclosing ownership of 1,882 shares of First Solar, Inc. (US:FSLR) valued at $371,243 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 1,949 shares of First Solar, Inc.. This represents a change in shares of -3.44% during the quarter. The current value of the position is $525,097 USD.

Signaturefd, Llc 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 0 of underlying shares valued at $0 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)
2026-04-07 2026-03-31 13F FIRST SOLAR COM 336433107 1,882 -67 -3.44 371 -27.11 0.0057
2026-01-20 2025-12-31 13F FIRST SOLAR COM 336433107 1,949 70 3.73 509 22.95 0.0078
2025-10-21 2025-09-30 13F FIRST SOLAR COM 336433107 1,879 47 2.57 414 36.63 0.0065
2025-07-16 2025-06-30 13F FIRST SOLAR COM 336433107 1,832 847 85.99 303 144.35 0.0052
2025-05-02 2025-03-31 13F FIRST SOLAR COM 336433107 985 102 11.55 125 -20.00 0.0024
2025-02-10 2024-12-31 13F FIRST SOLAR COM 336433107 883 -2,312 -72.36 156 -80.53 0.0029
2024-10-21 2024-09-30 13F FIRST SOLAR COM 336433107 3,195 218 7.32 797 18.63 0.0152
2024-07-29 2024-06-30 13F FIRST SOLAR COM 336433107 2,977 239 8.73 671 45.24 0.0136
2024-05-03 2024-03-31 13F FIRST SOLAR COM 336433107 2,738 -54 -1.93 462 -3.95 0.0098
2024-02-01 2023-12-31 13F FIRST SOLAR COM 336433107 2,792 -97 -3.36 481 3.22 0.0111
2023-11-03 2023-09-30 13F FIRST SOLAR COM 336433107 2,889 -97 -3.25 467 -17.81 0.0122
2023-08-01 2023-06-30 13F FIRST SOLAR COM 336433107 2,986 187 6.68 568 -6.74 0.0145
2023-04-28 2023-03-31 13F FIRST SOLAR COM 336433107 2,799 -156 -5.28 609 37.56 0.0166
2023-01-30 2022-12-31 13F FIRST SOLAR COM 336433107 2,955 102 3.58 443 17.24 0.0129
2022-11-08 2022-09-30 13F FIRST SOLAR COM 336433107 2,853 201 7.58 377 108.29 0.0129
2022-08-10 2022-06-30 13F FIRST SOLAR COM 336433107 2,652 52 2.00 181 -16.97 0.0062
2022-05-02 2022-03-31 13F FIRST SOLAR COM 336433107 2,600 2,246 634.46 218 603.23 0.0066
2022-01-25 2021-12-31 13F FIRST SOLAR COM 336433107 354 -68 -16.11 31 -22.50 0.0010
2021-10-28 2021-09-30 13F FIRST SOLAR COM 336433107 422 35 9.04 40 14.29 0.0014
2021-07-26 2021-06-30 13F FIRST SOLAR COM 336433107 387 42 12.17 35 16.67 0.0014
2021-04-30 2021-03-31 13F FIRST SOLAR COM 336433107 345 22 6.81 30 -6.25 0.0013
2021-02-11 2020-12-31 13F FIRST SOLAR COM 336433107 323 0 0.00 32 52.38 0.0015
2020-11-03 2020-09-30 13F FIRST SOLAR COM 336433107 323 0 0.00 21 31.25 0.0011
2020-07-30 2020-06-30 13F FIRST SOLAR COM 336433107 323 -95 -22.73 16 6.67 0.0010
2020-04-23 2020-03-31 13F FIRST SOLAR COM 336433107 418 132 46.15 15 -6.25 0.0013
2020-02-05 2019-12-31 13F FIRST SOLAR COM 336433107 286 0 0.00 16 -5.88 0.0012
2019-10-16 2019-09-30 13F FIRST SOLAR COM 336433107 286 0 0.00 17 -10.53 0.0014
2019-07-31 2019-06-30 13F FIRST SOLAR COM 336433107 286 0 0.00 19 26.67 0.0016
2019-05-09 2019-03-31 13F FIRST SOLAR COM 336433107 286 0 0.00 15 25.00 0.0013
2019-02-13 2018-12-31 13F FIRST SOLAR COM 336433107 286 0 0.00 12 -14.29 0.0011
2018-11-14 2018-09-30 13F FIRST SOLAR COM 336433107 286 0 0.00 14 -6.67 0.0014
2018-08-14 2018-06-30 13F FIRST SOLAR COM 336433107 286 0 0.00 15 -25.00 0.0017
2018-05-08 2018-03-31 13F FIRST SOLAR COM 336433107 286 -247 -46.34 20 -4.76 0.0023
2016-11-14 2016-09-30 13F FIRST SOLAR COM 336433107 533 515 2,861.11 21 2,000.00 0.0031
2016-07-29 2016-06-30 13F FIRST SOLAR COM 336433107 18 2 12.50 1 0.00 0.0001
2016-05-12 2016-03-31 13F FIRST SOLAR COM 336433107 16 16 0.00 1 0.0002
2015-10-23 2015-09-30 13F FIRST SOLAR COM 336433107 0 -210 -100.00 0 -100.00
2015-07-15 2015-06-30 13F FIRST SOLAR COM 336433107 210 210 10 0.0022
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
(%)
2020-04-23 2020-03-31 13F FIRST SOLAR COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-05 2019-12-31 13F FIRST SOLAR COM Call 3,000 1 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.