First Solar, Inc.
US ˙ NasdaqGS ˙ US3364331070

SecurityFSLR / First Solar, Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership14,026 shares
Latest Disclosed Value $ 2,766,602
Advisor Group Holdings, Inc. ownership in FSLR / First Solar, Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 14,026 shares of First Solar, Inc. (US:FSLR) valued at $2,766,769 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 15,575 shares of First Solar, Inc.. This represents a change in shares of -9.95% during the quarter. The current value of the position is $3,913,394 USD.

Advisor Group Holdings, Inc. 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 10 of underlying shares valued at $43,749 USD and put 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.

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)
2026-05-15 2026-03-31 13F FIRST SOLAR COM 336433107 14,026 -1,549 -9.95 2,767 -32.01 0.0024
2026-02-17 2025-12-31 13F FIRST SOLAR COM 336433107 15,575 -18,433 -54.20 4,069 -39.65 0.0059
2025-11-14 2025-09-30 13F FIRST SOLAR COM 336433107 34,008 837 2.52 6,741 22.90 0.0094
2025-09-04 2025-06-30 13F/A-1 IRST SOLAR COM 336433107 33,171 22,116 200.05 5,486 292.63 0.0098
2025-08-13 2025-06-30 13F IRST SOLAR COM 336433107 9,471 -1,584 1,646 0.0019
2025-05-12 2025-03-31 13F FIRST SOLAR COM 336433107 11,055 243 2.25 1,398 -24.20 0.0031
2025-06-06 2024-12-31 13F/A-1 FIRST SOLAR COM 336433107 10,812 -9,784 -47.50 1,843 -64.12 0.0041
2025-02-07 2024-12-31 13F FIRST SOLAR COM 336433107 21,465 869 5,070 0.0129
2024-11-13 2024-09-30 13F FIRST SOLAR COM 336433107 20,596 567 2.83 5,137 13.78 0.0116
2024-08-13 2024-06-30 13F FIRST SOLAR COM 336433107 20,029 -12,657 -38.72 4,515 -18.16 0.0107
2024-05-10 2024-03-31 13F FIRST SOLAR COM 336433107 32,686 12,584 62.60 5,517 59.36 0.0123
2024-02-12 2023-12-31 13F FIRST SOLAR COM 336433107 20,102 -10,896 -35.15 3,463 -30.87 0.0061
2023-11-13 2023-09-30 13F FIRST SOLAR COM 336433107 30,998 6,770 27.94 5,009 8.75 0.0074
2023-08-21 2023-06-30 13F/A-1 FIRST SOLAR COM 336433107 24,228 -4,244 -14.91 4,606 -25.61 0.0083
2023-08-10 2023-06-30 13F FIRST SOLAR COM 336433107 26,119 -2,353 4,604 0.0012
2023-05-12 2023-03-31 13F FIRST SOLAR COM 336433107 28,472 -6,883 -19.47 6,190 16.90 0.0116
2023-02-10 2022-12-31 13F FIRST SOLAR COM 336433107 35,355 -3,889 -9.91 5,296 2.00 0.0107
2022-11-14 2022-09-30 13F FIRST SOLAR COM 336433107 39,244 16,114 69.67 5,191 229.38 0.0119
2022-08-10 2022-06-30 13F FIRST SOLAR COM 336433107 23,130 -1,158 -4.77 1,576 -21.59 0.0035
2022-05-04 2022-03-31 13F FIRST SOLAR COM 336433107 24,288 -1,571 -6.08 2,010 -10.86 0.0039
2022-02-03 2021-12-31 13F FIRST SOLAR COM 336433107 25,859 -5,593 -17.78 2,255 -24.93 0.0043
2021-11-05 2021-09-30 13F FIRST SOLAR COM 336433107 31,452 -9,270 -22.76 3,004 -18.48 0.0063
2021-08-02 2021-06-30 13F FIRST SOLAR COM 336433107 40,722 16,106 65.43 3,685 71.48 0.0080
2021-05-13 2021-03-31 13F FIRST SOLAR COM 336433107 24,616 2,058 9.12 2,149 -3.68 0.0052
2021-02-10 2020-12-31 13F FIRST SOLAR COM 336433107 22,558 2,359 11.68 2,231 68.25 0.0060
2020-11-12 2020-09-30 13F FIRST SOLAR COM 336433107 20,199 3,826 23.37 1,326 63.70 0.0040
2020-08-14 2020-06-30 13F FIRST SOLAR COM 336433107 16,373 -8,917 -35.26 810 45.16 0.0027
2020-05-18 2020-03-31 13F FIRST SOLAR COM 336433107 25,290 25,290 558 0.0023
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 CALL Call 10 0.00 44 -55.67 n/a n/a n/a
2026-02-17 2025-12-31 13F FIRST SOLAR CALL Call 10 98 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
(%)
2025-05-12 2025-03-31 13F FIRST SOLAR PUT Put 0 -100.00 0 n/a n/a n/a
2025-02-07 2024-12-31 13F FIRST SOLAR PUT Put 1 0.00 0 n/a n/a n/a
2024-11-13 2024-09-30 13F FIRST SOLAR PUT Put 1 0 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.