BAND

SEC source: 0000899243-21-000222 · doc4.xml · nonDerivative · entry 4

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,477

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $159.54 to $160.53. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-21-000222 · doc4.xml · nonDerivative · entry 3

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,406

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $158.50 to $159.49. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-21-000222 · doc4.xml · nonDerivative · entry 2

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,379

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $157.50 to $158.49. The reporting person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-21-000222 · doc4.xml · nonDerivative · entry 1

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,025

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 · price: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

SEC source: 0000899243-20-035503 · doc4.xml · derivative · entry 2

Mullen Scott · CIK 0001807755 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,775

Underlying: Class A Common Stock · 1,100 shares

Expires 2027-08-24

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: Following the transaction reported herein, the stock option is vested with respect to 30,150 shares and vests with respect to the remaining 15,625 shares on August 24, 2021.

SEC source: 0000899243-20-035503 · doc4.xml · nonDerivative · entry 1

Mullen Scott · CIK 0001807755 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,836

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: 0000899243-20-035505 · doc4.xml · derivative · entry 25

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,112,434

Underlying: Class A Common Stock · 44,519 shares

Expires not disclosed

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_price: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

F1 · derivative.exercise_date: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

F1 · derivative.expiration_date: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 23

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 827

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F21 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $164.79 to $165.08. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 22

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,197

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F20 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $163.4744 to $164.34. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 21

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,704

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F19 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.45 to $163.44. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 20

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,504

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F18 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $161.33 to $162.25. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 19

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,522

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F17 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $160.31 to $161.28. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 18

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,531

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F16 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $159.31 to $160.30. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 17

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,346

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 · price: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

SEC source: 0000899243-20-035505 · doc4.xml · derivative · entry 24

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,156,953

Underlying: Class A Common Stock · 45,751 shares

Expires not disclosed

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_price: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

F1 · derivative.exercise_date: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

F1 · derivative.expiration_date: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 16

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 827

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 15

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,027

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 14

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,127

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F15 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $173.00 to $173.30. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 13

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,227

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F14 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.61 to $172.19. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 12

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,327

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F13 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.00 to $170.88. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 11

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,927

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F12 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $168.42 to $168.81. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 10

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,127

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F11 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.00 to $167.85. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 9

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,527

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $165.14 to $166.00. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 8

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,927

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $164.09 to $165.07. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 7

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,415

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $163.09 to $164.07. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 6

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,457

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.07 to $162.96. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 5

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,676

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $161.06 to $162.05. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 4

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,035

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $160.05 to $161.04. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 3

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,871

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $159.05 to $160.04. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 2

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,678

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $157.99 to $158.85. The reporting person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035505 · doc4.xml · nonDerivative · entry 1

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,578

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 · price: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

SEC source: 0000899243-20-035199 · doc4.xml · derivative · entry 14

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,202,704

Underlying: Class A Common Stock · 17,778 shares

Expires not disclosed

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_price: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

F1 · derivative.exercise_date: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

F1 · derivative.expiration_date: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

SEC source: 0000899243-20-035199 · doc4.xml · nonDerivative · entry 11

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 827

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $180.00 to $180.09. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035199 · doc4.xml · nonDerivative · entry 10

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,377

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $179.00 to $179.68. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035199 · doc4.xml · nonDerivative · entry 9

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,297

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $178.00 to $178.87. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035199 · doc4.xml · nonDerivative · entry 8

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,693

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $177.00 to $177.99. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035199 · doc4.xml · nonDerivative · entry 7

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,295

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $176.00 to $176.99. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035199 · doc4.xml · nonDerivative · entry 6

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,959

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $175.00 to $175.94. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035199 · doc4.xml · nonDerivative · entry 5

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,755

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $174.00 to $174.70. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035199 · doc4.xml · nonDerivative · entry 4

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,172

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $173.00 to $173.99. The reporting person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000899243-20-035199 · doc4.xml · nonDerivative · entry 3

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,605

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 · price: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

SEC source: 0000899243-20-035199 · doc4.xml · derivative · entry 13

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,215,482

Underlying: Class A Common Stock · 70,131 shares

Expires not disclosed

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_price: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

F1 · derivative.exercise_date: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

F1 · derivative.expiration_date: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

SEC source: 0000899243-20-035199 · doc4.xml · nonDerivative · entry 2

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 827

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

SEC source: 0000899243-20-035199 · doc4.xml · nonDerivative · entry 1

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,958

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 · price: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

SEC source: 0001514416-20-000284 · wf-form4_160772103375069.xml · nonDerivative · entry 1

Roush Lukas M. · CIK 0001758209 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,966

SEC source: 0000899243-20-035199 · doc4.xml · derivative · entry 12

Morken David A. · CIK 0001721962 · Director · Chairman & CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,285,613

Underlying: Class A Common Stock · 62,370 shares

Expires not disclosed

F1 · derivative.exercise_price: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

F1 · derivative.exercise_date: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

F1 · derivative.expiration_date: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

SEC source: 0001514416-20-000282 · wf-form4_160754799034713.xml · nonDerivative · entry 1

Roush Lukas M. · CIK 0001758209 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,041

SEC source: 0000899243-20-032034 · doc4.xml · nonDerivative · entry 2

Murdock John C. · CIK 0001721985 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 116,965

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $152.00 to $152.615. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote

SEC source: 0000899243-20-032034 · doc4.xml · nonDerivative · entry 1

Murdock John C. · CIK 0001721985 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 126,665

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $154.10 to $154.53. The reporting person undertakes to provide Bandwidth Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001514416-20-000276 · wf-form4_160452495338503.xml · nonDerivative · entry 8

Ross Kade · CIK 0001807759 · Chief Information Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,134

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $161.14 to $161.15. The reporting person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.