Valentin Gapontsev Trust I, a 10% owner of IPG Photonics Corp (NASDAQ:IPGP), filed a Form 4 on September 3, 2026, disclosing the sale of 27,397 shares of common stock across three transactions on September 1 and September 2, 2026.

Key Highlights

  • Three sales reported: 18,091 shares sold on September 1, 2026, and two separate lots of 4,591 and 4,715 shares sold on September 2, 2026.
  • Weighted average prices: $75.14 per share on September 1; $75.65 and $76.25 per share for the two September 2 transactions, respectively.
  • Rule 10b5-1 plan: All sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 17, 2026.
  • Remaining ownership: Following the transactions, the trust directly beneficially owns 6,642,886 shares of common stock.
  • Reporting person: Valentin Gapontsev Trust I is identified as a 10% owner of IPG Photonics Corp.

Valentin Gapontsev Trust I Reduces IPG Photonics Position Under Pre-Set Plan

According to the filing, Valentin Gapontsev Trust I sold a total of 27,397 shares of IPG Photonics Corp common stock over two trading days. On September 1, 2026, the trust disposed of 18,091 shares at a weighted average price of $75.14, with individual transaction prices ranging from $75.00 to $75.73 per share. Following that sale, beneficial ownership stood at 6,652,192 shares, the filing states.

On September 2, 2026, the trust completed two additional sales. The first involved 4,591 shares at a weighted average price of $75.65, with prices ranging from $75.00 to $75.89 per share. The second involved 4,715 shares at a weighted average price of $76.25, with prices ranging from $76.00 to $76.81 per share. After both September 2 transactions, beneficial ownership was reported as 6,642,886 shares held directly, according to the filing.

The filing notes that all three sales "were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 17, 2026." The filing also states that the reporting person will provide, upon request, details on the number of shares sold at each separate price within each reported transaction. The Form 4 was signed by Adam N. King as Attorney-in-Fact for Valentin Gapontsev Trust I and filed on September 3, 2026.

What Was Disclosed

The Form 4 filed September 3, 2026, discloses three open-market sales of IPG Photonics common stock by Valentin Gapontsev Trust I, a 10% owner, totaling 27,397 shares between September 1 and September 2, 2026, all under a pre-established Rule 10b5-1 plan.