Proto Labs, Inc. filings document the regulatory record for an NYSE-listed digital manufacturing company that produces custom parts for prototyping, testing, bridge production, short-run production, and end-use applications. Its SEC disclosures cover operating results, revenue by service activity, non-GAAP measures, cash-flow commentary, and business updates related to CNC machining, digital platforms, and manufacturing capacity.
PRLB filings also include Form 8-K material-event reports for earnings releases and executive leadership changes, amendments to previously furnished results information, and proxy materials covering board matters, executive compensation, equity awards, shareholder voting items, and governance. The company’s filings identify its common stock under the PRLB ticker on the New York Stock Exchange.
Proto Labs, Inc. (PRLB) former officer Michael R. Kenison reported an intended sale of 1,143 common shares, with an aggregate market value of $109,493.69, through Morgan Stanley Smith Barney LLC, dated September 25, 2026. The shares are identified as acquired from the issuer through exercise of options under a registered plan, with cash payment. Kenison's reported sales during the prior three months included 1,800 shares for $172,534.50 on September 24, 2026, and 10,753 shares for $947,786.62 on August 4, 2026.
Proto Labs Inc (PRLB) Chief Financial Officer Daniel Schumacher sold 5,000 shares of common stock on September 24, 2026, at a weighted average price of $95.3209 per share across multiple transactions; sale prices ranged from $95.00 to $95.65. The sale was executed under a Rule 10b5-1 trading plan adopted on June 5, 2026. He directly held 35,019 shares after the sale.
Proto Labs, Inc. officer Daniel Schumacher reported an intended sale of 5,000 common shares, with an aggregate market value of $445,650.00, through Morgan Stanley Smith Barney LLC Executive Financial Services. The shares were acquired through the vesting of restricted stock units from February 13, 2023, through May 20, 2025. His reported prior three-month sales, each identified as a 10b5-1 sale, were 4,900 shares on September 17, 2026, and 100 shares on September 16, 2026.
Proto Labs, Inc. (PRLB) former officer Michael Roy Kenison reported a proposed sale of 1,800 common shares, with an approximate sale date of September 24, 2026, and an aggregate market value of $172,534.50. The shares are listed as acquired from the issuer on that date through exercise of options under a registered plan, with cash payment; Morgan Stanley Smith Barney LLC is named as broker. The notice also reports that Kenison sold 10,753 common shares on August 4, 2026, for $947,786.62 during the preceding three months.
Proto Labs Inc (PRLB) reported that Chief Financial Officer Daniel Schumacher sold a total of 5,000 shares of common stock in open-market transactions on September 16–17, 2026 under a Rule 10b5-1 trading plan. The September 17 sale of 4,900 shares used a weighted-average price with trades between $85.00 and $85.50 per share.
Proto Labs, Inc. (PRLB) officer Daniel Schumacher filed a Rule 144 notice to sell up to 4,900 shares of Proto Labs common stock through Morgan Stanley Smith Barney LLC on the NYSE, with an indicated aggregate market value of $407,876.00 as of September 17, 2026.
The shares were acquired upon vesting of restricted stock units granted on May 20, 2020 and vesting through February 13, 2025, and the notice reports prior 10b5-1 plan sales of 100 shares for $8,500.00 on September 16, 2026.
Proto Labs, Inc. (PRLB) received a Rule 144 notice from officer Daniel Schumacher regarding a proposed sale of 100 shares of common stock through Morgan Stanley Smith Barney LLC on the NYSE, dated September 16, 2026. The shares were acquired upon vesting of restricted stock units granted on May 20, 2020 and vesting through February 13, 2025.
Proto Labs Inc (PRLB) reported an initial statement of beneficial ownership for Salam Ramahi, who serves as Chief Operations Officer. The filing does not list any reportable holdings of company securities or any insider transactions at this time and notes an attached Power of Attorney as an exhibit.
Proto Labs Inc (PRLB) announced that it has appointed Sam Ramahi as Chief Operations Officer, effective August 31, 2026. Ramahi will lead global operations, supply chain, quality, sourcing, and continuous improvement, reporting to President and Chief Executive Officer Suresh Krishna, who will retain ultimate oversight of operations.
The company highlights Ramahi’s more than 25 years of executive operational leadership across global industrial and manufacturing businesses, including prior roles at SIG Group, Jacuzzi Group, nVent, Eaton, Cooper Industries, Honeywell, and GE Healthcare. A related press release is furnished as Exhibit 99.1 and treated as non-filed information under the Exchange Act.
Disciplined Growth Investors, Inc. reports its ownership position in Proto Labs Inc common stock. The firm beneficially owns 2,380,514 shares of Proto Labs common stock, representing 10.0% of the class as of June 30, 2026.
Disciplined Growth Investors has sole power to vote 2,244,845 shares and sole power to dispose of 2,380,514 shares, with no shared voting or dispositive power reported. The filing lists Disciplined Growth Investors’ principal business office in Minneapolis, Minnesota.