WEHRWEIN SVEN

SEC source: 0001209191-21-012680 · doc4.xml · derivative · entry 5

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,752

Underlying: Common Stock · 300 shares

Expires 2024-05-23

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: This option was previously reported as an option for 3,026 shares of Common stock at an exercise price of $58.29 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F2 · shares: This option was previously reported as an option for 3,026 shares of Common stock at an exercise price of $58.29 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F5 · derivative.exercise_date: Fully vested.

F2 · derivative.underlying_shares: This option was previously reported as an option for 3,026 shares of Common stock at an exercise price of $58.29 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F2 · balance_after: This option was previously reported as an option for 3,026 shares of Common stock at an exercise price of $58.29 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

SEC source: 0001209191-21-012680 · doc4.xml · nonDerivative · entry 2

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,910

F3 · price: Reflects the weighted average price of 300 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on February 18, 2021 with sales prices ranging from $110.035 to $110.08 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

SEC source: 0001209191-21-012680 · doc4.xml · nonDerivative · entry 1

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,210

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. Pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 3,026 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 6,052 shares of Common Stock.

F2 · shares: This option was previously reported as an option for 3,026 shares of Common stock at an exercise price of $58.29 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F1 · price: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. Pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 3,026 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 6,052 shares of Common Stock.

F2 · price: This option was previously reported as an option for 3,026 shares of Common stock at an exercise price of $58.29 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

SEC source: 0001209191-20-059678 · doc4.xml · derivative · entry 6

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 792

Underlying: Common Stock · 3,000 shares

Expires 2023-05-18

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: This option was previously reported as an option for 3,396 shares of Common stock at an exercise price of $52.27 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F2 · shares: This option was previously reported as an option for 3,396 shares of Common stock at an exercise price of $52.27 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F5 · derivative.exercise_date: Fully vested.

F2 · derivative.underlying_shares: This option was previously reported as an option for 3,396 shares of Common stock at an exercise price of $52.27 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F2 · balance_after: This option was previously reported as an option for 3,396 shares of Common stock at an exercise price of $52.27 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

SEC source: 0001209191-20-059678 · doc4.xml · nonDerivative · entry 4

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,910

F4 · price: Reflects the weighted average price of 3,000 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on November 19, 2020 with sales prices ranging from $94.00 to $94.66 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

SEC source: 0001209191-20-059678 · doc4.xml · nonDerivative · entry 3

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,910

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 3,396 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 6,792 shares of Common Stock.

F2 · shares: This option was previously reported as an option for 3,396 shares of Common stock at an exercise price of $52.27 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F1 · price: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 3,396 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 6,792 shares of Common Stock.

F2 · price: This option was previously reported as an option for 3,396 shares of Common stock at an exercise price of $52.27 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

SEC source: 0001209191-20-059678 · doc4.xml · derivative · entry 5

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,792

Underlying: Common Stock · 3,000 shares

Expires 2023-05-18

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: This option was previously reported as an option for 3,396 shares of Common stock at an exercise price of $52.27 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F2 · shares: This option was previously reported as an option for 3,396 shares of Common stock at an exercise price of $52.27 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F5 · derivative.exercise_date: Fully vested.

F2 · derivative.underlying_shares: This option was previously reported as an option for 3,396 shares of Common stock at an exercise price of $52.27 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F2 · balance_after: This option was previously reported as an option for 3,396 shares of Common stock at an exercise price of $52.27 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

SEC source: 0001209191-20-059678 · doc4.xml · nonDerivative · entry 2

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,910

F3 · price: Reflects the weighted average price of 3,000 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on November 18, 2020 with sales prices ranging from $94.00 to $94.05 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

SEC source: 0001209191-20-059678 · doc4.xml · nonDerivative · entry 1

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,910

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 3,396 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 6,792 shares of Common Stock.

F2 · shares: This option was previously reported as an option for 3,396 shares of Common stock at an exercise price of $52.27 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F1 · price: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 3,396 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 6,792 shares of Common Stock.

F2 · price: This option was previously reported as an option for 3,396 shares of Common stock at an exercise price of $52.27 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

SEC source: 0001209191-20-056892 · doc4.xml · derivative · entry 3

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,506 shares

Expires 2022-05-13

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: This option was previously reported as an option for 2,253 shares of Common stock at an exercise price of $67.37 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F2 · shares: This option was previously reported as an option for 2,253 shares of Common stock at an exercise price of $67.37 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F4 · derivative.exercise_date: Fully vested.

F2 · derivative.underlying_shares: This option was previously reported as an option for 2,253 shares of Common stock at an exercise price of $67.37 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F2 · balance_after: This option was previously reported as an option for 2,253 shares of Common stock at an exercise price of $67.37 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

SEC source: 0001209191-20-056892 · doc4.xml · nonDerivative · entry 2

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,910

F3 · price: Reflects the weighted average price of 4,506 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on November 2, 2020 with sales prices ranging from $86.005 to $86.20 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

SEC source: 0001209191-20-056892 · doc4.xml · nonDerivative · entry 1

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,416

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 2,253 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 4,506 shares of Common Stock.

F2 · shares: This option was previously reported as an option for 2,253 shares of Common stock at an exercise price of $67.37 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F1 · price: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 2,253 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 4,506 shares of Common Stock.

F2 · price: This option was previously reported as an option for 2,253 shares of Common stock at an exercise price of $67.37 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

SEC source: 0001437749-20-017656 · rdgdoc.xml · derivative · entry 6

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 762 shares

Expires 2022-05-07

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: Fully vested.

SEC source: 0001437749-20-017656 · rdgdoc.xml · nonDerivative · entry 4

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,386

SEC source: 0001437749-20-017656 · rdgdoc.xml · nonDerivative · entry 3

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,148

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001437749-20-017656 · rdgdoc.xml · derivative · entry 5

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 762

Underlying: Common Stock · 4,000 shares

Expires 2022-05-07

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: Fully vested.

SEC source: 0001437749-20-017656 · rdgdoc.xml · nonDerivative · entry 2

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,386

F1 · price: Reflects the weighted average price of 4,000 shares of common stock of Proto Labs, Inc. sold by the reporting person on August 11, 2020 with sale prices ranging from $130.00 to $130.315 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

SEC source: 0001437749-20-017656 · rdgdoc.xml · nonDerivative · entry 1

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,386

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-20-045518 · doc4.xml · derivative · entry 6

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,620 shares

Expires 2021-05-14

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: This option was previously reported as an option for 2,810 shares of Common stock at an exercise price of $51.74 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F2 · shares: This option was previously reported as an option for 2,810 shares of Common stock at an exercise price of $51.74 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F5 · derivative.exercise_date: Fully vested.

F2 · derivative.underlying_shares: This option was previously reported as an option for 2,810 shares of Common stock at an exercise price of $51.74 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F2 · balance_after: This option was previously reported as an option for 2,810 shares of Common stock at an exercise price of $51.74 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

SEC source: 0001209191-20-045518 · doc4.xml · nonDerivative · entry 4

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,910

F4 · price: Reflects the weighted average price of 2,620 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on August 5, 2020 with sales prices ranging from $75.26 to $75.62 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

SEC source: 0001209191-20-045518 · doc4.xml · nonDerivative · entry 3

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,530

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 2,810 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 5,620 shares of Common Stock.

F2 · shares: This option was previously reported as an option for 2,810 shares of Common stock at an exercise price of $51.74 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F1 · price: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 2,810 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 5,620 shares of Common Stock.

F2 · price: This option was previously reported as an option for 2,810 shares of Common stock at an exercise price of $51.74 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

SEC source: 0001209191-20-045518 · doc4.xml · derivative · entry 5

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,620

Underlying: Common Stock · 3,000 shares

Expires 2021-05-14

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: This option was previously reported as an option for 2,810 shares of Common stock at an exercise price of $51.74 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F2 · shares: This option was previously reported as an option for 2,810 shares of Common stock at an exercise price of $51.74 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F5 · derivative.exercise_date: Fully vested.

F2 · derivative.underlying_shares: This option was previously reported as an option for 2,810 shares of Common stock at an exercise price of $51.74 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F2 · balance_after: This option was previously reported as an option for 2,810 shares of Common stock at an exercise price of $51.74 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

SEC source: 0001209191-20-045518 · doc4.xml · nonDerivative · entry 2

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,910

F3 · price: Reflects the weighted average price of 3,000 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on August 4, 2020 with sales prices ranging from $75.005 to $75.50 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

SEC source: 0001209191-20-045518 · doc4.xml · nonDerivative · entry 1

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,910

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 2,810 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 5,620 shares of Common Stock.

F2 · shares: This option was previously reported as an option for 2,810 shares of Common stock at an exercise price of $51.74 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F1 · price: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 2,810 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 5,620 shares of Common Stock.

F2 · price: This option was previously reported as an option for 2,810 shares of Common stock at an exercise price of $51.74 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

SEC source: 0001209191-20-031564 · doc4.xml · nonDerivative · entry 1

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,686

F1 · shares: The Reporting Person acquired these shares pursuant to a Restricted Stock Award under the AtriCure, Inc. 2014 Stock Incentive Plan. The shares will vest upon the one-year anniversary of the grant date.

SEC source: 0001437749-20-011577 · rdgdoc.xml · nonDerivative · entry 1

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,386

F1 · shares: The deferred stock units vest in full on May 19, 2021, but must be retained by the reporting person until the completion of the reporting person's service on the Board of Directors of Proto Labs, Inc.

SEC source: 0001209191-20-030914 · doc4.xml · derivative · entry 2

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,536

Underlying: Common Stock · 4,536 shares

Expires 2027-05-18

F2 · derivative.exercise_date: This option shall vest in four equal installments on the last day of each fiscal quarter with the first vesting occurring on June 30, 2020, provided the reporting person remains a member of the board as of the vesting date.

SEC source: 0001209191-20-030914 · doc4.xml · nonDerivative · entry 1

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,910

F1 · shares: The deferred stock units will vest in four equal installments on the last day of each fiscal quarter with the first vesting occurring on June 30, 2020, provided the reporting person remains a member of the board as of the vesting date. The deferred stock units must be retained until completion of the reporting person's service on the board, and upon completion of such service, convert into an equal number of shares of our common stock. The reporting person may defer receipt of the shares for up to ten years after completion of service.

SEC source: 0001209191-20-028053 · doc4.xml · derivative · entry 6

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 9,680 shares

Expires 2021-05-16

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: This option was previously reported as an option for 5,340 shares of Common stock at an exercise price of $16.65 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F2 · shares: This option was previously reported as an option for 5,340 shares of Common stock at an exercise price of $16.65 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F5 · derivative.exercise_date: Fully vested.

F2 · derivative.underlying_shares: This option was previously reported as an option for 5,340 shares of Common stock at an exercise price of $16.65 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F2 · balance_after: This option was previously reported as an option for 5,340 shares of Common stock at an exercise price of $16.65 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

SEC source: 0001209191-20-028053 · doc4.xml · nonDerivative · entry 4

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,470

F4 · price: Reflects the weighted average price of 9,680 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on May 7, 2020 with sales prices ranging from $59.50 to $60.215 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

SEC source: 0001209191-20-028053 · doc4.xml · nonDerivative · entry 3

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,150

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 5,340 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 10,680 shares of Common Stock.

F2 · shares: This option was previously reported as an option for 5,340 shares of Common stock at an exercise price of $16.65 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F1 · price: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 5,340 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 10,680 shares of Common Stock.

F2 · price: This option was previously reported as an option for 5,340 shares of Common stock at an exercise price of $16.65 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

SEC source: 0001209191-20-028053 · doc4.xml · derivative · entry 5

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,680

Underlying: Common Stock · 1,000 shares

Expires 2021-05-16

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: This option was previously reported as an option for 5,340 shares of Common stock at an exercise price of $16.65 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F2 · shares: This option was previously reported as an option for 5,340 shares of Common stock at an exercise price of $16.65 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F5 · derivative.exercise_date: Fully vested.

F2 · derivative.underlying_shares: This option was previously reported as an option for 5,340 shares of Common stock at an exercise price of $16.65 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F2 · balance_after: This option was previously reported as an option for 5,340 shares of Common stock at an exercise price of $16.65 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

SEC source: 0001209191-20-028053 · doc4.xml · nonDerivative · entry 2

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,470

F3 · price: Reflects the weighted average price of 1,000 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on May 6, 2020 with sales prices ranging from $57.25 to $57.44 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

SEC source: 0001209191-20-028053 · doc4.xml · nonDerivative · entry 1

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,470

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 5,340 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 10,680 shares of Common Stock.

F2 · shares: This option was previously reported as an option for 5,340 shares of Common stock at an exercise price of $16.65 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F1 · price: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 5,340 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 10,680 shares of Common Stock.

F2 · price: This option was previously reported as an option for 5,340 shares of Common stock at an exercise price of $16.65 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

SEC source: 0001209191-20-016740 · doc4.xml · derivative · entry 7

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,000

Underlying: Common Stock · 4,178 shares

Expires 2020-04-26

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: This option was previously reported as an option for 4,755 shares of Common stock at an exercise price of $12.00 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F2 · shares: This option was previously reported as an option for 4,755 shares of Common stock at an exercise price of $12.00 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F5 · derivative.exercise_date: Fully vested.

F2 · derivative.underlying_shares: This option was previously reported as an option for 4,755 shares of Common stock at an exercise price of $12.00 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F2 · balance_after: This option was previously reported as an option for 4,755 shares of Common stock at an exercise price of $12.00 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

SEC source: 0001209191-20-016740 · doc4.xml · nonDerivative · entry 5

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,470

F1 · shares: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time the reporting person received 7,235 shares of Common Stock of the Issuer. At the same time, pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 4,755 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 9,510 shares of Common Stock.

F2 · shares: This option was previously reported as an option for 4,755 shares of Common stock at an exercise price of $12.00 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F4 · price: Reflects the weighted average price of 4,178 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on March 4, 2020 with sales prices ranging from $54.51 to $54.97 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

SEC source: 0001209191-20-016740 · doc4.xml · nonDerivative · entry 4

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,648

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time the reporting person received 7,235 shares of Common Stock of the Issuer. At the same time, pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 4,755 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 9,510 shares of Common Stock.

F2 · shares: This option was previously reported as an option for 4,755 shares of Common stock at an exercise price of $12.00 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F1 · price: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time the reporting person received 7,235 shares of Common Stock of the Issuer. At the same time, pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 4,755 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 9,510 shares of Common Stock.

F2 · price: This option was previously reported as an option for 4,755 shares of Common stock at an exercise price of $12.00 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

SEC source: 0001209191-20-016740 · doc4.xml · derivative · entry 6

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,178

Underlying: Common Stock · 1,332 shares

Expires 2020-04-26

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: This option was previously reported as an option for 4,755 shares of Common stock at an exercise price of $12.00 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F2 · shares: This option was previously reported as an option for 4,755 shares of Common stock at an exercise price of $12.00 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F5 · derivative.exercise_date: Fully vested.

F2 · derivative.underlying_shares: This option was previously reported as an option for 4,755 shares of Common stock at an exercise price of $12.00 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F2 · balance_after: This option was previously reported as an option for 4,755 shares of Common stock at an exercise price of $12.00 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

SEC source: 0001209191-20-016740 · doc4.xml · nonDerivative · entry 3

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,470

SEC source: 0001209191-20-016740 · doc4.xml · nonDerivative · entry 2

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,670

F3 · price: Reflects the weighted average price of 1,132 shares of Common Stock of the Issuer sold by the reporting person in multiple transactions on March 3, 2020 with sales prices ranging from $55.12 to $56.10 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price.

SEC source: 0001209191-20-016740 · doc4.xml · nonDerivative · entry 1

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,802

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time the reporting person received 7,235 shares of Common Stock of the Issuer. At the same time, pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 4,755 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 9,510 shares of Common Stock.

F2 · shares: This option was previously reported as an option for 4,755 shares of Common stock at an exercise price of $12.00 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F1 · price: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time the reporting person received 7,235 shares of Common Stock of the Issuer. At the same time, pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 4,755 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 9,510 shares of Common Stock.

F2 · price: This option was previously reported as an option for 4,755 shares of Common stock at an exercise price of $12.00 per share, but was adjusted to reflect the stock dividend declared by the Issuer on July 25, 2019.

F1 · balance_after: On July 25, 2019, the Issuer announced that its board of directors declared a two-for-one stock split of the Common Stock of the Issuer, effected in the form of a 100 percent stock dividend as of the record date on August 8, 2019. The stock split dividend was distributed on August 22, 2019, and at that time the reporting person received 7,235 shares of Common Stock of the Issuer. At the same time, pursuant to anti-dilution provisions of the Issuer's 2010 Equity Incentive Plan, an option for 4,755 shares of Common Stock held by the reporting person on August 22, 2019 became an option for 9,510 shares of Common Stock.

SEC source: 0001209191-19-035119 · doc4.xml · derivative · entry 6

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 644 shares

Expires 2020-05-14

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: Fully vested.

SEC source: 0001209191-19-035119 · doc4.xml · nonDerivative · entry 4

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,235

SEC source: 0001209191-19-035119 · doc4.xml · nonDerivative · entry 3

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,879

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-19-035119 · doc4.xml · derivative · entry 5

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 644

Underlying: Common Stock · 2,000 shares

Expires 2020-05-14

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: Fully vested.

SEC source: 0001209191-19-035119 · doc4.xml · nonDerivative · entry 2

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,235

SEC source: 0001209191-19-035119 · doc4.xml · nonDerivative · entry 1

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,235

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-19-032554 · doc4.xml · nonDerivative · entry 1

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,234

F1 · shares: The Reporting Person acquired these shares pursuant to a Restricted Stock Award under the AtriCure, Inc. 2014 Stock Incentive Plan. The shares will vest upon the one-year anniversary of the grant date.

SEC source: 0001437749-19-010407 · rdgdoc.xml · nonDerivative · entry 1

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,189

F1 · shares: The deferred stock units vest in full on May 16, 2020, but must be retained by the reporting person until the completion of the reporting person's service on the Board of Directors of Proto Labs, Inc.

SEC source: 0001209191-19-030500 · doc4.xml · derivative · entry 2

WEHRWEIN SVEN · CIK 0001205069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,866

Underlying: Common Stock · 2,866 shares

Expires 2026-05-14

F2 · derivative.exercise_date: This option shall vest in four equal installments on the last day of each fiscal quarter with the first vesting occurring on June 30, 2019, provided the reporting person remains a member of the board as of the vesting date.