A Form 4 filed on September 3, 2026 reports that Keith R. Larson, a director at NWPX Infrastructure, Inc. (NASDAQ:NWPX), sold 4 shares of common stock on September 3, 2026 pursuant to a Rule 10b5-1(c) trading plan.

Key Highlights

  • Reporting person: Keith R. Larson, identified as a Director of NWPX Infrastructure, Inc.
  • Shares sold: 4 shares of common stock disposed of (transaction code S) on September 3, 2026.
  • Weighted average price: $110.785 per share, with individual trades ranging from $110.12 to $111.66 per share.
  • Remaining ownership: 18,633 shares of common stock held directly following the transaction.
  • 10b5-1 plan: The sale was made pursuant to a Rule 10b5-1(c) plan adopted on May 18, 2026.

Director Larson's Sale Details and Post-Transaction Ownership at NWPX Infrastructure

According to the filing, Keith R. Larson, a director at NWPX Infrastructure, Inc., sold 4 shares of common stock on September 3, 2026 at a weighted average price of $110.785 per share. The filing notes that the transaction was executed in multiple trades at prices ranging from $110.12 to $111.66 per share, and that Larson "undertakes to provide to the Issuer, any security holder of the Issuer, or to the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."

The filing indicates that the sale was made pursuant to a contract, instruction, or written plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c), with an adoption date of May 18, 2026. Following the reported transaction, Larson is disclosed as directly beneficially owning 18,633 shares of NWPX Infrastructure common stock. No derivative securities transactions were reported in Table II of the filing.

What Was Disclosed

The filing reports a single disposition of 4 shares of NWPX Infrastructure common stock by director Keith R. Larson on September 3, 2026, at a weighted average price of $110.785, executed under a pre-established 10b5-1(c) trading plan adopted May 18, 2026.