First Solar, Inc.
US ˙ NasdaqGS ˙ US3364331070

SecurityFSLR / First Solar, Inc.
InstitutionWolverine Trading, Llc
Latest Disclosed Ownership22,411 shares
Latest Disclosed Value $ 5,009,531
Wolverine Trading, Llc ownership in FSLR / First Solar, Inc.

On November 14, 2025 - Wolverine Trading, Llc filed a 13F-HR form disclosing ownership of 22,411 shares of First Solar, Inc. (US:FSLR) valued at $4,942,298 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 18, 2025 disclosing 5,201 shares of First Solar, Inc.. This represents a change in shares of 330.90% during the quarter. The current value of the position is $7,132,301 USD.

Wolverine Trading, 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 1,444,800 of underlying shares valued at $322,956,144 USD and put options representing 1,204,700 of underlying shares valued at $269,286,591 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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

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)
2025-11-14 2025-09-30 13F FIRST SOLAR COM 336433107 22,411 17,210 330.90 5,010 533.25 0.0036
2025-08-18 2025-06-30 13F FIRST SOLAR COM 336433107 5,201 -57,157 -91.66 791 -90.04 0.0008
2025-05-15 2025-03-31 13F FIRST SOLAR COM 336433107 62,358 9,641 18.29 7,939 -15.43 0.0093
2025-02-14 2024-12-31 13F FIRST SOLAR COM 336433107 52,717 -2,211 -4.03 9,387 -33.17 0.0088
2024-11-14 2024-09-30 13F FIRST SOLAR COM 336433107 54,928 -10,736 -16.35 14,048 -5.11 0.0148
2024-08-14 2024-06-30 13F FIRST SOLAR COM 336433107 65,664 -24,333 -27.04 14,805 -2.55 0.0156
2024-05-15 2024-03-31 13F FIRST SOLAR COM 336433107 89,997 25,316 39.14 15,191 36.33 0.0154
2024-02-14 2023-12-31 13F FIRST SOLAR COM 336433107 64,681 58,203 898.47 11,143 965.30 0.0116
2023-11-15 2023-09-30 13F FIRST SOLAR COM 336433107 6,478 -28,767 -81.62 1,047 -83.87 0.0011
2023-08-23 2023-06-30 13F FIRST SOLAR COM 336433107 35,245 35,245 6,485 0.0079
2022-11-14 2022-09-30 13F FIRST SOLAR COM 336433107 0 -29,301 -100.00 0 -100.00
2022-08-15 2022-06-30 13F FIRST SOLAR COM 336433107 29,301 29,301 1,958 0.0032
2022-05-16 2022-03-31 13F FIRST SOLAR COM 336433107 0 -24,628 -100.00 0 -100.00
2022-02-14 2021-12-31 13F FIRST SOLAR COM 336433107 24,628 9,542 63.25 2,168 52.78 0.0026
2021-11-12 2021-09-30 13F FIRST SOLAR COM 336433107 15,086 9,744 182.40 1,419 186.67 0.0016
2021-08-06 2021-06-30 13F FIRST SOLAR COM 336433107 5,342 -26,177 -83.05 495 -81.85 0.0008
2021-05-14 2021-03-31 13F FIRST SOLAR COM 336433107 31,519 -15,719 -33.28 2,727 -42.47 0.0041
2021-02-12 2020-12-31 13F FIRST SOLAR COM 336433107 47,238 25,292 115.25 4,740 228.48 0.0074
2020-11-13 2020-09-30 13F FIRST SOLAR COM 336433107 21,946 10,932 99.26 1,443 164.29 0.0035
2020-08-13 2020-06-30 13F FIRST SOLAR COM 336433107 11,014 -17,985 -62.02 546 -47.80 0.0015
2020-05-11 2020-03-31 13F FIRST SOLAR COM 336433107 28,999 28,999 1,046 0.0032
2019-08-20 2019-06-30 13F FIRST SOLAR COM 336433107 0 -4,617 -100.00 0 -100.00
2019-05-15 2019-03-31 13F FIRST SOLAR COM 336433107 4,617 -4,969 -51.84 244 -39.90 0.0007
2019-02-13 2018-12-31 13F FIRST SOLAR COM 336433107 9,586 -43,156 -81.82 406 -84.10 0.0011
2018-11-14 2018-09-30 13F FIRST SOLAR COM 336433107 52,742 33,028 167.54 2,554 82.56 0.0056
2018-08-13 2018-06-30 13F FIRST SOLAR COM 336433107 19,714 0 0.00 1,399 0.00 0.0033
2018-05-15 2018-03-31 13F FIRST SOLAR COM 336433107 19,714 -7,448 -27.42 1,399 -23.72 0.0033
2018-02-14 2017-12-31 13F FIRST SOLAR COM 336433107 27,162 -38,977 -58.93 1,834 -39.55 0.0066
2017-11-15 2017-09-30 13F FIRST SOLAR COM 336433107 66,139 29,657 81.29 3,034 107.52 0.0116
2017-08-14 2017-06-30 13F FIRST SOLAR COM 336433107 36,482 19,680 117.13 1,462 216.45 0.0067
2017-05-15 2017-03-31 13F FIRST SOLAR COM 336433107 16,802 16,802 462 0.0025
2016-11-14 2016-09-30 13F FIRST SOLAR COM 336433107 0 -208 -100.00 0 -100.00
2016-08-15 2016-06-30 13F FIRST SOLAR COM 336433107 208 208 10 0.0001
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
(%)
2025-11-14 2025-09-30 13F FIRST SOLAR COM Call 1,444,800 60.23 322,956 135.42 n/a n/a n/a
2025-08-18 2025-06-30 13F FIRST SOLAR COM Call 901,700 135.55 137,185 181.47 n/a n/a n/a
2025-05-15 2025-03-31 13F FIRST SOLAR COM Call 382,800 8.35 48,738 -22.53 n/a n/a n/a
2025-02-14 2024-12-31 13F FIRST SOLAR COM Call 353,300 10.75 62,912 -22.89 n/a n/a n/a
2024-11-14 2024-09-30 13F FIRST SOLAR COM Call 319,000 -17.06 81,584 -5.91 n/a n/a n/a
2024-08-14 2024-06-30 13F FIRST SOLAR COM Call 384,600 71.01 86,712 128.41 n/a n/a n/a
2024-05-15 2024-03-31 13F FIRST SOLAR COM Call 224,900 -27.50 37,963 -28.96 n/a n/a n/a
2024-02-14 2023-12-31 13F FIRST SOLAR COM Call 310,200 0.13 53,441 6.75 n/a n/a n/a
2023-11-15 2023-09-30 13F FIRST SOLAR COM Call 309,800 16.25 50,061 2.08 n/a n/a n/a
2023-08-23 2023-06-30 13F FIRST SOLAR COM Call 266,500 49,039 n/a n/a n/a
2022-11-14 2022-09-30 13F FIRST SOLAR COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-08-15 2022-06-30 13F FIRST SOLAR COM Call 128,800 8,609 n/a n/a n/a
2022-05-16 2022-03-31 13F FIRST SOLAR COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-14 2021-12-31 13F FIRST SOLAR COM Call 228,400 -13.12 20,108 -18.69 n/a n/a n/a
2021-11-12 2021-09-30 13F FIRST SOLAR COM Call 262,900 47.37 24,731 49.59 n/a n/a n/a
2021-08-06 2021-06-30 13F FIRST SOLAR COM Call 178,400 17.68 16,532 26.03 n/a n/a n/a
2021-05-14 2021-03-31 13F FIRST SOLAR COM Call 151,600 -1.81 13,118 -15.32 n/a n/a n/a
2021-02-12 2020-12-31 13F FIRST SOLAR COM Call 154,400 36.40 15,492 108.11 n/a n/a n/a
2020-11-13 2020-09-30 13F FIRST SOLAR COM Call 113,200 172.12 7,444 260.66 n/a n/a n/a
2020-08-13 2020-06-30 13F FIRST SOLAR COM Call 41,600 -42.62 2,064 -21.04 n/a n/a n/a
2020-05-11 2020-03-31 13F FIRST SOLAR COM Call 72,500 2,614 n/a n/a n/a
2019-11-14 2019-09-30 13F FIRST SOLAR COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-08-20 2019-06-30 13F FIRST SOLAR COM Call 151,800 28.64 9,970 59.90 n/a n/a n/a
2019-05-15 2019-03-31 13F FIRST SOLAR COM Call 118,000 25.13 6,235 55.99 n/a n/a n/a
2019-02-13 2018-12-31 13F FIRST SOLAR COM Call 94,300 -24.07 3,997 -33.54 n/a n/a n/a
2018-11-14 2018-09-30 13F FIRST SOLAR COM Call 124,200 -14.76 6,014 -41.85 n/a n/a n/a
2018-08-13 2018-06-30 13F FIRST SOLAR COM Call 145,700 0.00 10,342 0.00 n/a n/a n/a
2018-05-15 2018-03-31 13F FIRST SOLAR COM Call 145,700 -41.53 10,342 -38.54 n/a n/a n/a
2018-02-14 2017-12-31 13F FIRST SOLAR COM Call 249,200 24.60 16,826 83.37 n/a n/a n/a
2017-11-15 2017-09-30 13F FIRST SOLAR COM Call 200,000 -0.70 9,176 13.68 n/a n/a n/a
2017-08-14 2017-06-30 13F FIRST SOLAR COM Call 201,400 10.66 8,072 61.44 n/a n/a n/a
2017-05-15 2017-03-31 13F FIRST SOLAR COM Call 182,000 -42.15 5,000 -59.33 n/a n/a n/a
2016-11-14 2016-09-30 13F FIRST SOLAR COM Call 314,600 29.95 12,295 5.60 n/a n/a n/a
2016-08-17 2016-06-30 13F/A FIRST SOLAR COM Call 242,100 11,643 n/a n/a n/a
2016-08-15 2016-06-30 13F FIRST SOLAR COM Call 2,421 11,643 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
(%)
2025-11-14 2025-09-30 13F FIRST SOLAR COM Put 1,204,700 194.62 269,287 332.87 n/a n/a n/a
2025-08-18 2025-06-30 13F FIRST SOLAR COM Put 408,900 38.24 62,210 65.18 n/a n/a n/a
2025-05-15 2025-03-31 13F FIRST SOLAR COM Put 295,800 -10.58 37,661 -36.06 n/a n/a n/a
2025-02-14 2024-12-31 13F FIRST SOLAR COM Put 330,800 37.72 58,906 -4.11 n/a n/a n/a
2024-11-14 2024-09-30 13F FIRST SOLAR COM Put 240,200 -5.47 61,431 7.23 n/a n/a n/a
2024-08-14 2024-06-30 13F FIRST SOLAR COM Put 254,100 3.80 57,289 38.64 n/a n/a n/a
2024-05-15 2024-03-31 13F FIRST SOLAR COM Put 244,800 3.38 41,322 1.29 n/a n/a n/a
2024-02-14 2023-12-31 13F FIRST SOLAR COM Put 236,800 22.38 40,796 30.47 n/a n/a n/a
2023-11-15 2023-09-30 13F FIRST SOLAR COM Put 193,500 -23.49 31,268 -32.81 n/a n/a n/a
2023-08-23 2023-06-30 13F FIRST SOLAR COM Put 252,900 46,536 n/a n/a n/a
2022-11-14 2022-09-30 13F FIRST SOLAR COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-08-15 2022-06-30 13F FIRST SOLAR COM Put 130,600 8,729 n/a n/a n/a
2022-05-16 2022-03-31 13F FIRST SOLAR COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-14 2021-12-31 13F FIRST SOLAR COM Put 198,400 -11.15 17,467 -16.85 n/a n/a n/a
2021-11-12 2021-09-30 13F FIRST SOLAR COM Put 223,300 23.92 21,006 25.79 n/a n/a n/a
2021-08-06 2021-06-30 13F FIRST SOLAR COM Put 180,200 6.56 16,699 14.13 n/a n/a n/a
2021-05-14 2021-03-31 13F FIRST SOLAR COM Put 169,100 -2.59 14,632 -16.00 n/a n/a n/a
2021-02-12 2020-12-31 13F FIRST SOLAR COM Put 173,600 37.34 17,419 109.56 n/a n/a n/a
2020-11-13 2020-09-30 13F FIRST SOLAR COM Put 126,400 79.29 8,312 137.62 n/a n/a n/a
2020-08-13 2020-06-30 13F FIRST SOLAR COM Put 70,500 -41.40 3,498 -19.36 n/a n/a n/a
2020-05-11 2020-03-31 13F FIRST SOLAR COM Put 120,300 4,338 n/a n/a n/a
2019-11-14 2019-09-30 13F FIRST SOLAR COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-08-20 2019-06-30 13F FIRST SOLAR COM Put 129,200 -6.04 8,486 16.79 n/a n/a n/a
2019-05-15 2019-03-31 13F FIRST SOLAR COM Put 137,500 24.10 7,266 54.69 n/a n/a n/a
2019-02-13 2018-12-31 13F FIRST SOLAR COM Put 110,800 -33.61 4,697 -41.88 n/a n/a n/a
2018-11-14 2018-09-30 13F FIRST SOLAR COM Put 166,900 17.87 8,081 -19.60 n/a n/a n/a
2018-08-13 2018-06-30 13F FIRST SOLAR COM Put 141,600 0.00 10,051 0.00 n/a n/a n/a
2018-05-15 2018-03-31 13F FIRST SOLAR COM Put 141,600 -37.43 10,051 -34.22 n/a n/a n/a
2018-02-14 2017-12-31 13F FIRST SOLAR COM Put 226,300 -15.65 15,280 24.13 n/a n/a n/a
2017-11-15 2017-09-30 13F FIRST SOLAR COM Put 268,300 7.23 12,310 22.76 n/a n/a n/a
2017-08-14 2017-06-30 13F FIRST SOLAR COM Put 250,200 80.91 10,028 163.96 n/a n/a n/a
2017-05-15 2017-03-31 13F FIRST SOLAR COM Put 138,300 -50.52 3,799 -65.22 n/a n/a n/a
2016-11-14 2016-09-30 13F FIRST SOLAR COM Put 279,500 54.68 10,923 25.70 n/a n/a n/a
2016-08-17 2016-06-30 13F/A FIRST SOLAR COM Put 180,700 8,690 n/a n/a n/a
2016-08-15 2016-06-30 13F FIRST SOLAR COM Put 1,807 8,690 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.