First Solar, Inc.
US ˙ NasdaqGS ˙ US3364331070

SecurityFSLR / First Solar, Inc.
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Parallel Advisors, LLC ownership in FSLR / First Solar, Inc.

On June 2, 2026 - Parallel Advisors, LLC filed a 13F-HR/A form disclosing ownership of 0 shares of First Solar, Inc. (US:FSLR) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 6,630 shares of First Solar, Inc.. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 USD.

Parallel Advisors, 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)
2026-06-02 2026-03-31 13F/A-1 FIRST SOLAR Stock 336433107 0 -6,630 -100.00 0 -100.00
2026-02-11 2025-12-31 13F FIRST SOLAR Stock 336433107 6,630 -37 -0.55 1,732 17.76 0.0317
2025-11-13 2025-09-30 13F FIRST SOLAR Stock 336433107 6,667 -161 -2.36 1,470 30.09 0.0269
2025-07-08 2025-06-30 13F FIRST SOLAR Stock 336433107 6,828 -165 -2.36 1,130 27.83 0.0226
2025-04-08 2025-03-31 13F FIRST SOLAR Stock 336433107 6,993 -261 -3.60 884 -30.83 0.0199
2025-02-10 2024-12-31 13F FIRST SOLAR Stock 336433107 7,254 -474 -6.13 1,278 -33.68 0.0288
2024-11-13 2024-09-30 13F FIRST SOLAR Stock 336433107 7,728 150 1.98 1,928 12.82 0.0453
2024-08-08 2024-06-30 13F FIRST SOLAR Stock 336433107 7,578 -130 -1.69 1,709 31.28 0.0438
2024-05-06 2024-03-31 13F FIRST SOLAR Stock 336433107 7,708 -42 -0.54 1,301 -2.55 0.0353
2024-02-12 2023-12-31 13F FIRST SOLAR Stock 336433107 7,750 430 5.87 1,335 12.94 0.0396
2024-05-20 2023-09-30 13F/A-1 FIRST SOLAR Stock 336433107 7,320 37 0.51 1,183 -14.60 0.0394
2023-11-14 2023-09-30 13F FIRST SOLAR Stock 336433107 7,320 37 1,183 0.0394
2024-05-20 2023-06-30 13F/A-1 FIRST SOLAR Stock 336433107 7,283 -298 -3.93 1,384 -16.02 0.0446
2023-08-04 2023-06-30 13F FIRST SOLAR Stock 336433107 7,283 -298 1,384 0.0446
2024-05-20 2023-03-31 13F/A-1 FIRST SOLAR Stock 336433107 7,581 6,086 407.09 1,649 639.01 0.0556
2023-04-25 2023-03-31 13F FIRST SOLAR Stock 336433107 7,581 6,086 1,649 0.0556
2023-02-06 2022-12-31 13F FIRST SOLAR Stock 336433107 1,495 140 10.33 224 24.58 0.0097
2022-11-10 2022-09-30 13F FIRST SOLAR Stock 336433107 1,355 225 19.91 179 132.47 0.0082
2022-08-01 2022-06-30 13F FIRST SOLAR Stock 336433107 1,130 91 8.76 77 -9.41 0.0035
2022-04-28 2022-03-31 13F FIRST SOLAR Stock 336433107 1,039 -2 -0.19 85 -6.59 0.0034
2022-01-20 2021-12-31 13F FIRST SOLAR Stock 336433107 1,041 26 2.56 91 -6.19 0.0034
2021-11-02 2021-09-30 13F/A-1 FIRST SOLAR Stock 336433107 1,015 -82 -7.47 97 -2.02 0.0039
2021-08-06 2021-06-30 13F FIRST SOLAR Stock 336433107 1,097 -53 -4.61 99 -1.00 0.0042
2021-04-23 2021-03-31 13F FIRST SOLAR Stock 336433107 1,150 -20 -1.71 100 -13.79 0.0047
2021-02-02 2020-12-31 13F FIRST SOLAR Stock 336433107 1,170 43 3.82 116 54.67 0.0063
2020-10-27 2020-09-30 13F FIRST SOLAR Stock 336433107 1,127 213 23.30 75 66.67 0.0046
2020-07-16 2020-06-30 13F FIRST SOLAR Stock 336433107 914 -231 -20.17 45 9.76 0.0029
2020-04-27 2020-03-31 13F FIRST SOLAR Stock 336433107 1,145 758 195.87 41 86.36 0.0033
2020-01-30 2019-12-31 13F FIRST SOLAR Stock 336433107 387 -71 -15.50 22 -18.52 0.0017
2019-11-01 2019-09-30 13F FIRST SOLAR Stock 336433107 458 71 18.35 27 8.00 0.0023
2019-08-05 2019-06-30 13F FIRST SOLAR Stock 336433107 387 0 0.00 25 25.00 0.0024
2019-05-01 2019-03-31 13F FIRST SOLAR Stock 336433107 387 0 0.00 20 25.00 0.0022
2019-02-05 2018-12-31 13F FIRST SOLAR Stock 336433107 387 -334 -46.32 16 -54.29 0.0022
2018-11-01 2018-09-30 13F FIRST SOLAR Stock 336433107 721 345 91.76 35 84.21 0.0043
2018-07-30 2018-06-30 13F FIRST SOLAR Stock 336433107 376 0 0.00 19 -29.63 0.0027
2018-05-08 2018-03-31 13F FIRST SOLAR Stock 336433107 376 0 0.00 27 8.00 0.0042
2018-02-13 2017-12-31 13F FIRST SOLAR INC COM Stock 336433107 376 0 0.00 25 8.70 0.0041
2017-11-15 2017-09-30 13F/A-1 FIRST SOLAR INC COM Stock 336433107 376 0 0.00 23 21.05 0.0040
2017-08-07 2017-06-30 13F FIRST SOLAR INC COM Stock 336433107 376 60 18.99 19 72.73 0.0036
2017-05-12 2017-03-31 13F/A-1 FIRST SOLAR INC COM Stock 336433107 316 209 195.33 11 266.67 0.0022
2017-05-12 2017-03-31 13F FIRST SOLAR INC COM Stock 336433107 316 11
2017-02-14 2016-12-31 13F FIRST SOLAR INC COM Stock 336433107 107 107 3 0.0007
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
(%)
2022-01-19 2021-12-31 13F FIRST SOLAR Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-10-22 2021-09-30 13F FIRST SOLAR Stock Call 1,097 99 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.