PRLB - SEC Form 4 insider transactions

Director Wehrwein Sven sold $154,550 worth of shares (2,000 units at $77.28), decreasing direct ownership by 6% to 32,505 units (SEC Form 4)

President and CEO Krishna Suresh covered exercise/tax liability with 1,247 shares, decreasing direct ownership by 4% to 30,147 units (SEC Form 4)

Chief Financial Officer Schumacher Daniel covered exercise/tax liability with 255 shares, decreasing direct ownership by 0.56% to 45,019 units (SEC Form 4)

Chief Commercial Officer Parlange Bernardo was granted 2,109 shares (SEC Form 4)

Director Black Archie C. was granted 2,210 shares, increasing direct ownership by 8% to 28,428 units (SEC Form 4)

Director Chand Sujeet was granted 2,210 shares, increasing direct ownership by 9% to 26,863 units (SEC Form 4)

Director Chin Moonhie was granted 2,210 shares, increasing direct ownership by 11% to 22,306 units (SEC Form 4)

Director Gawlick Rainer was granted 2,210 shares, increasing direct ownership by 5% to 46,093 units (SEC Form 4)

Director Wehrwein Sven was granted 2,210 shares, increasing direct ownership by 7% to 34,505 units (SEC Form 4)

Director Krantz Donald G was granted 2,210 shares, increasing direct ownership by 9% to 26,863 units (SEC Form 4)

Chief Operations Officer Kenison Michael R. sold $1,636,166 worth of shares (23,463 units at $69.73) as part of a pre-agreed trading plan and exercised 14,960 shares at a strike of $41.27, decreasing direct ownership by 31% to 18,683 units (SEC Form 4)

Chief Operations Officer Kenison Michael R. exercised 200 shares at a strike of $33.68 and sold $14,000 worth of shares (200 units at $70.00) as part of a pre-agreed trading plan (SEC Form 4)

President and CEO Krishna Suresh was granted 13,373 shares, increasing direct ownership by 74% to 31,394 units (SEC Form 4)

Chief Financial Officer Schumacher Daniel was granted 3,074 shares and covered exercise/tax liability with 504 shares, increasing direct ownership by 6% to 45,274 units (SEC Form 4)

Chief Operations Officer Kenison Michael R. was granted 2,415 shares and covered exercise/tax liability with 531 shares, increasing direct ownership by 7% to 27,186 units (SEC Form 4)

Chief Technology & AI Officer Kermisch Marc was granted 2,795 shares, increasing direct ownership by 75% to 6,513 units (SEC Form 4)

Chief Financial Officer Schumacher Daniel covered exercise/tax liability with 1,267 shares, decreasing direct ownership by 3% to 42,704 units (SEC Form 4)

Chief Operations Officer Kenison Michael R. covered exercise/tax liability with 1,540 shares and sold $332,315 worth of shares (5,000 units at $66.46), decreasing direct ownership by 21% to 25,302 units (SEC Form 4)

Chief Operations Officer Kenison Michael R. covered exercise/tax liability with 2,684 shares, decreasing direct ownership by 8% to 31,842 units (SEC Form 4)

Chief Financial Officer Schumacher Daniel covered exercise/tax liability with 6,809 shares and exercised 3,135 shares at a strike of $33.84, decreasing direct ownership by 8% to 43,971 units (SEC Form 4)

Chief Operations Officer Kenison Michael R. sold $150,000 worth of shares (2,500 units at $60.00), decreasing direct ownership by 7% to 34,526 units (SEC Form 4)

Chief Operations Officer Kenison Michael R. was granted 8,128 shares, increasing direct ownership by 28% to 37,026 units (SEC Form 4)

Chief Financial Officer Schumacher Daniel was granted 20,686 shares, increasing direct ownership by 77% to 47,645 units (SEC Form 4)

Amendment: SEC Form 4/A filed by Proto Labs Inc.

Chief Operations Officer Kenison Michael R. sold $152,931 worth of shares (3,048 units at $50.17) and exercised 3,048 shares at a strike of $33.84 (SEC Form 4)

Chief Technology & AI Officer Kermisch Marc was granted 3,718 shares (SEC Form 4)

Director Black Archie C. was granted 3,939 shares, increasing direct ownership by 18% to 26,218 units (SEC Form 4)

Director Gawlick Rainer was granted 3,939 shares, increasing direct ownership by 10% to 42,168 units (SEC Form 4)

Director Chin Moonhie was granted 3,939 shares, increasing direct ownership by 24% to 20,096 units (SEC Form 4)

Director Chand Sujeet was granted 3,939 shares, increasing direct ownership by 19% to 24,653 units (SEC Form 4)

Director Greiner Stacy was granted 3,939 shares, increasing direct ownership by 25% to 19,644 units (SEC Form 4)

Director Wehrwein Sven was granted 3,939 shares, increasing direct ownership by 14% to 32,295 units (SEC Form 4)

Director Krantz Donald G was granted 3,939 shares, increasing direct ownership by 19% to 24,653 units (SEC Form 4)

President and CEO Krishna Suresh was granted 16,296 shares (SEC Form 4)

Chief Financial Officer Schumacher Daniel covered exercise/tax liability with 305 shares, decreasing direct ownership by 1% to 26,959 units (SEC Form 4)

Chief Operations Officer Kenison Michael R. covered exercise/tax liability with 204 shares, decreasing direct ownership by 0.70% to 28,841 units (SEC Form 4)

Chief Financial Officer Schumacher Daniel was granted 4,419 shares, increasing direct ownership by 19% to 27,264 units (SEC Form 4)

Chief Operations Officer Kenison Michael R. was granted 6,943 shares, increasing direct ownership by 32% to 28,982 units (SEC Form 4)

Chief Technology Officer Ryaboy Oleg was granted 7,574 shares, increasing direct ownership by 27% to 35,305 units (SEC Form 4)

President and CEO Bodor Robert was granted 18,935 shares, increasing direct ownership by 21% to 108,579 units (SEC Form 4)

President and CEO Bodor Robert was granted 23,570 shares and covered exercise/tax liability with 14,804 shares, increasing direct ownership by 11% to 89,644 units (SEC Form 4)

Chief Operations Officer Kenison Michael R. was granted 1,894 shares and covered exercise/tax liability with 2,276 shares, decreasing direct ownership by 2% to 22,039 units (SEC Form 4)

Chief Financial Officer Schumacher Daniel was granted 3,077 shares and covered exercise/tax liability with 2,362 shares, increasing direct ownership by 3% to 22,845 units (SEC Form 4)

Chief Technology Officer Ryaboy Oleg covered exercise/tax liability with 2,461 shares, decreasing direct ownership by 8% to 27,731 units (SEC Form 4)

Black Archie C. was granted 4,701 shares, increasing direct ownership by 29% to 20,714 units (SEC Form 4)

Chand Sujeet was granted 4,701 shares, increasing direct ownership by 29% to 20,714 units (SEC Form 4)

Chin Moonhie was granted 4,701 shares, increasing direct ownership by 41% to 16,157 units (SEC Form 4)

Gawlick Rainer was granted 4,701 shares, increasing direct ownership by 14% to 38,229 units (SEC Form 4)

Greiner Stacy was granted 4,701 shares, increasing direct ownership by 43% to 15,705 units (SEC Form 4)

Krantz Donald G was granted 4,701 shares, increasing direct ownership by 29% to 20,714 units (SEC Form 4)

Wehrwein Sven was granted 4,701 shares, increasing direct ownership by 20% to 28,356 units (SEC Form 4)

Kenison Michael R. covered exercise/tax liability with 336 shares, decreasing direct ownership by 1% to 22,351 units (SEC Form 4)

Schumacher Daniel covered exercise/tax liability with 370 shares, decreasing direct ownership by 2% to 22,130 units (SEC Form 4)

Klaas Bjoern covered exercise/tax liability with 1,741 shares and was granted 6,713 shares, increasing direct ownership by 28% to 23,046 units (SEC Form 4)

Schumacher Daniel was granted 5,221 shares and covered exercise/tax liability with 1,018 shares, increasing direct ownership by 23% to 22,500 units (SEC Form 4)

Kenison Michael R. covered exercise/tax liability with 1,070 shares and was granted 8,205 shares, increasing direct ownership by 47% to 22,405 units (SEC Form 4)

Ryaboy Oleg was granted 10,442 shares and covered exercise/tax liability with 1,702 shares, increasing direct ownership by 42% to 29,497 units (SEC Form 4)

Bodor Robert covered exercise/tax liability with 3,548 shares and was granted 22,375 shares, increasing direct ownership by 33% to 76,703 units (SEC Form 4)

SEC Form 4 filed by Schumacher Daniel

SEC Form 4 filed by Black Archie C.