First Solar, Inc.
MX ˙ BMV ˙ US3364331070
SecurityMX:FSLR / First Solar, Inc.
InstitutionOppenheimer & Co Inc
Latest Disclosed Ownership5,217 shares
Latest Disclosed Value $ 1,029,105
Oppenheimer & Co Inc reports 74.91% decrease in ownership of FSLR / First Solar, Inc.

On April 23, 2026 - Oppenheimer & Co Inc filed a 13F-HR form disclosing ownership of 5,217 shares of First Solar, Inc. (MX:FSLR) valued at $1,029,105 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 20,792 shares of First Solar, Inc.. This represents a change in shares of -74.91% during the quarter.

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 .

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)
2026-04-23 2026-03-31 13F FIRST SOLAR COM 336433107 5,217 -15,575 -74.91 1,029 -81.05 0.0125
2026-02-02 2025-12-31 13F FIRST SOLAR COM 336433107 20,792 2,194 11.80 5,431 32.43 0.0771
2025-11-06 2025-09-30 13F FIRST SOLAR COM 336433107 18,598 1,911 11.45 4,101 48.48 0.0500
2025-07-31 2025-06-30 13F FIRST SOLAR COM 336433107 16,687 4,910 41.69 2,762 85.62 0.0365
2025-04-23 2025-03-31 13F FIRST SOLAR COM 336433107 11,777 9,405 396.50 1,489 255.98 0.0225
2025-02-05 2024-12-31 13F FIRST SOLAR COM 336433107 2,372 -781 -24.77 418 -46.82 0.0062
2024-11-05 2024-09-30 13F FIRST SOLAR COM 336433107 3,153 2,225 239.76 786 276.08 0.0120
2024-08-08 2024-06-30 13F FIRST SOLAR COM 336433107 928 -1,603 -63.33 209 -51.05 0.0033
2024-05-07 2024-03-31 13F FIRST SOLAR COM 336433107 2,531 2,531 427 0.0071
2024-02-13 2023-12-31 13F FIRST SOLAR COM 336433107 0 -2,676 -100.00 0 -100.00
2023-11-08 2023-09-30 13F FIRST SOLAR COM 336433107 2,676 -1,490 -35.77 432 -45.39 0.0089
2023-08-03 2023-06-30 13F FIRST SOLAR COM 336433107 4,166 1,090 35.44 792 18.24 0.0158
2023-05-10 2023-03-31 13F FIRST SOLAR COM 336433107 3,076 -1,574 -33.85 669 -3.88 0.0142
2023-02-08 2022-12-31 13F FIRST SOLAR COM 336433107 4,650 1,420 43.96 697 63.00 0.0159
2022-11-14 2022-09-30 13F FIRST SOLAR COM 336433107 3,230 3,230 427 0.0100
2022-08-08 2022-06-30 13F FIRST SOLAR COM 336433107 0 -2,595 -100.00 0 -100.00
2022-05-12 2022-03-31 13F FIRST SOLAR COM 336433107 2,595 2,595 217 0.0039
2022-02-02 2021-12-31 13F FIRST SOLAR COM 336433107 0 -3,449 -100.00 0 -100.00
2021-11-12 2021-09-30 13F FIRST SOLAR COM 336433107 3,449 -800 -18.83 330 -14.06 0.0062
2021-08-03 2021-06-30 13F FIRST SOLAR COM 336433107 4,249 -10,662 -71.50 384 -70.51 0.0069
2021-05-10 2021-03-31 13F FIRST SOLAR COM 336433107 14,911 -2,164 -12.67 1,302 -22.91 0.0260
2021-02-11 2020-12-31 13F FIRST SOLAR COM 336433107 17,075 6,804 66.24 1,689 148.38 0.0356
2020-11-13 2020-09-30 13F FIRST SOLAR COM 336433107 10,271 1,940 23.29 680 65.05 0.0170
2020-08-11 2020-06-30 13F FIRST SOLAR COM 336433107 8,331 500 6.38 412 46.10 0.0107
2020-05-08 2020-03-31 13F FIRST SOLAR COM 336433107 7,831 300 3.98 282 -33.02 0.0086
2020-02-07 2019-12-31 13F FIRST SOLAR COM 336433107 7,531 1,200 18.95 421 14.40 0.0104
2019-10-31 2019-09-30 13F FIRST SOLAR COM 336433107 6,331 0 0.00 368 -11.54 0.0100
2019-08-09 2019-06-30 13F FIRST SOLAR COM 336433107 6,331 6,331 416 0.0113
2015-08-12 2015-06-30 13F FIRST SOLAR COM 336433107 0 -7,449 -100.00 0 -100.00
2015-05-08 2015-03-31 13F FIRST SOLAR COM 336433107 7,449 7,449 0.00 445 0.0121
2014-11-12 2014-09-30 13F FIRST SOLAR COM 336433107 0 -3,753 -100.00 0 -100.00
2014-08-14 2014-06-30 13F FIRST SOLAR COM 336433107 3,753 -1,246 -24.92 267 -2.20 0.0080
2014-02-12 2013-12-31 13F FIRST SOLAR COM 336433107 4,999 -4,580 -47.81 273 -29.27 0.0087
2013-11-01 2013-09-30 13F FIRST SOLAR COM 336433107 9,579 9,579 386 0.0136
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.