First Solar CTO Sold 800 Shares in September
Chief Technology Officer Markus Gloeckler completed the stock sale on September 1, 2026, under a planned trading program.
Updated on Sept. 18, 2026 in Public Companies

Live Poll
Do you consider corporate insider stock sales a reliable indicator of a company's financial health?
First Solar Chief Technology Officer Markus Gloeckler sold 800 shares of the company stock on September 1, 2026. The transaction, which occurred at a price of $200 per share, totaled $160,000.
Why it matters
The sale was executed under a Rule 10b5-1 trading plan adopted on May 4, 2026, allowing insiders to schedule stock trades in advance to manage personal equity holdings. This mechanism provides a transparent framework for executives to diversify their positions without triggering market concerns over non-public information.
The transaction was valued at $160,000 based on a share price of $200. Following the sale, Gloeckler retains 5,842 shares of common stock, which were valued at $1.1 million based on the market close on September 1, 2026.
The players
Markus Gloeckler
He serves as the Chief Technology Officer at First Solar and is responsible for overseeing the company's technical strategy and product development.
First Solar
It is a prominent American manufacturer of thin-film solar modules and a provider of utility-scale PV solar energy solutions globally.
The details
Gloeckler maintained his remaining stake in the solar technology company following the pre-arranged transaction. The sale reflects a scheduled reduction of equity as established in the internal trading protocol.
Timeline
May 4, 2026: The insider adopted a Rule 10b5-1 trading plan to schedule future stock sales.
September 1, 2026: Markus Gloeckler sold 800 shares of company stock at $200 per share.
Market Landscape
The use of SEC Rule 10b5-1 to schedule stock sales is a standard practice across the energy and technology sectors to provide a legal safe harbor for executives. This transaction follows the established requirements of the regulation by utilizing a pre-set schedule to conduct the sale.
For the average investor, this transaction indicates an executive's routine management of personal assets rather than a change in the company's operational health. Retail shareholders should focus on broader analyst forecasts, which currently suggest a median one-year price target of $280 for the stock.
The takeaway
Executives frequently utilize pre-arranged trading plans to ensure their personal financial moves remain distinct from internal company strategy. Investors are advised to prioritize long-term corporate performance metrics over individual insider sales when evaluating their positions.
Further reading
For broader trends regarding corporate governance and insider activity, explore the Public Companies section.
Live Poll
Do you consider corporate insider stock sales a reliable indicator of a company's financial health?










