InsidersTradesSigma
Proto Labs Inc Stock: price and insider trades · United States · SEC (Form 4)
Track the Proto Labs Inc stock price and the full insider trade history of the company, a listed equity based in United States. Shares are quoted on US US, under the supervision of SEC (Form 4). Operating in the Industry sector, Proto Labs Inc has logged 102 reports. Market capitalisation: €1.8bn. The latest transaction was disclosed on 21 May 2026 (Attribution). Among the most active insiders: Schumacher Daniel. Every trade is free.
102
Insider Decl.
0
Thresholds
€1m
5 ops.
Buy Volume
·
0 ops.
Sell Volume
Analyst consensus: bullish or bearish?
Analysts rate Proto Labs Inc Buy (bullish), based on 3 analysts. Average price target: US$88.00.
42Σ signal
Informational score on this market. Our backtest validates the signal only on 8 EU venues; elsewhere (notably US markets) insider buys historically invert or do not hold. Not a recommendation.
Fundamental score
Ranked 14,450 of 25,821 companies
48.6
score / 100
Value37
Quality61
FCF yld3.4%
Earn yld1.2%
EV/EBITDA29.0x
ROE3.8%
Gross mgn44%
Net mgn4.0%
Debt/EBITDA0.1x
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Sigma AI Analysis
Fundamental view, insider signal, bull and bear case, synthesis.
AI-generated analysis. Opinion, not investment advice. Not backtested. Built from public filings and financials. No price target, no buy or sell recommendation.
Last declaration on 21 May 2026
Declarations102 total
2,210 shares0Common StockSEC:0001628280-26-037251:0
2,210 shares0Common StockSEC:0001628280-26-037247:0
2,210 shares0Common StockSEC:0001628280-26-037245:0
2,210 shares0Common StockSEC:0001628280-26-037243:0
3,048 shares@ US$33.8442.2% of flowCommon StockSEC:0001870293-25-000007
3,048 shares@ US$33.840.0075% mcap42.2% of flowCommon StockSEC:0001870293-25-000007:0
305 shares@ US$40.879.0% of flowCommon StockSEC:0001628280-25-027303:0
204 shares@ US$40.872.7% of flowCommon StockSEC:0001628280-25-027300:0
18,935 shares0Common StockSEC:0001628280-25-008699:0
4,419 shares0Common StockSEC:0001628280-25-008706:0
7,574 shares0Common StockSEC:0001628280-25-008701:0
6,943 shares0Common StockSEC:0001628280-25-008704:0
3,077 shares0Common StockSEC:0001628280-25-006144:0
23,570 shares0Common StockSEC:0001628280-25-006147:0
1,894 shares0Common StockSEC:0001628280-25-006145:0
2,461 shares@ US$45.0357.2% of flowCommon StockSEC:0001628280-25-006142:0
3,480 shares@ US$28.678316.9% of flowCommon StockSEC:0001628280-24-039901:0
Ideal exit: 3 Jun 2025 (T+270)
4,701 shares0Common StockSEC:0001437749-24-018340:0
4,701 shares0Common StockSEC:0001437749-24-018337:0
4,701 shares0Common StockSEC:0001437749-24-018335:0
4,701 shares0Common StockSEC:0001437749-24-018339:0
4,701 shares0Common StockSEC:0001437749-24-018336:0
4,701 shares0Common StockSEC:0001437749-24-018342:0
4,701 shares0Common StockSEC:0001437749-24-018334:0
370 shares@ US$31.818.8% of flowCommon StockSEC:0001437749-24-018007:0
25 of 102 declarations
About Proto Labs Inc
Proto Labs, Inc. (NYSE: PRLB) is a U.S.-based digital manufacturing company focused on the fast production of custom parts for product developers, engineers, and supply chain teams. Headquartered in Maple Plain, Minnesota, United States, the company was founded in 1999 by Larry Lukis with a mission to dramatically shorten the time required to produce injection-molded prototypes through software-driven automation of the manufacturing process. Over time, Protolabs has expanded well beyond prototyping and now serves customers across the full product lifecycle, including low-volume and production use cases where speed, flexibility, and repeatability matter. Its core manufacturing lines include injection molding, CNC machining, 3D printing, and sheet metal fabrication. In addition, the company operates Protolabs Network, a global partner-manufacturing platform that broadens capacity, adds specialized capabilities, and supports higher-volume orders. This combination of in-house digital factories and a partner ecosystem gives Protolabs a differentiated “single source” proposition for customers that want to move quickly from design to finished part. From a competitive standpoint, the company stands out for short lead times, an automated quoting and ordering workflow, and a geographic footprint that spans the United States and Europe. Protolabs serves a broad set of end markets, including industrial, electronics, medical, and other technical segments where precision and turnaround time are critical. Recent developments suggest a clear strategic push toward production and operational scale. In the first quarter of 2026, Protolabs reported record revenue of $139.3 million, up 10.4% year over year. The fourth quarter and full year 2025 also delivered record results, including quarterly revenue of $136.5 million. Management has also been reshaping the organization, including the appointment of a new CEO in May 2025 and the announcement of a new Chief Commercial Officer in May 2026, underscoring a focus on growth execution, commercial discipline, and operating efficiency. For investors, Protolabs remains an industrial technology name listed on the NYSE in the United States, levered to digital manufacturing adoption and on-demand supply chain transformation.
