Herrmann John A III

SEC source: 0001209191-23-058988 · doc4.xml · derivative · entry 3

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,100 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Novavax common stock.

F3 · derivative.exercise_date: The RSUs subject to this grant under the Company's Amended and Restated 2015 Stock Incentive Plan, as amended, vested with respect to one-third (1/3) of the RSUs on each of the first three (3) anniversaries of the December 14, 2020 grant date, in each case subject to continued employment with the Company through such vesting date.

F3 · derivative.expiration_date: The RSUs subject to this grant under the Company's Amended and Restated 2015 Stock Incentive Plan, as amended, vested with respect to one-third (1/3) of the RSUs on each of the first three (3) anniversaries of the December 14, 2020 grant date, in each case subject to continued employment with the Company through such vesting date.

SEC source: 0001209191-23-058988 · doc4.xml · nonDerivative · entry 2

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,233

F2 · kind: The shares were withheld by the Company to satisfy tax withholding obligations in connection with the vesting of RSUs.

SEC source: 0001209191-23-058988 · doc4.xml · nonDerivative · entry 1

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,933

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Novavax common stock.

SEC source: 0001209191-23-039890 · doc4.xml · derivative · entry 4

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 833 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Novavax, Inc. (the "Company") common stock.

F3 · derivative.exercise_date: The RSUs subject to this grant under the Company's Amended and Restated 2015 Stock Incentive Plan, as amended, vested with respect to one-third (1/3) of the RSUs on each of the first three (3) anniversaries of the June 25, 2020 grant date, in each case subject to continued employment with the Company through such vesting date.

F3 · derivative.expiration_date: The RSUs subject to this grant under the Company's Amended and Restated 2015 Stock Incentive Plan, as amended, vested with respect to one-third (1/3) of the RSUs on each of the first three (3) anniversaries of the June 25, 2020 grant date, in each case subject to continued employment with the Company through such vesting date.

SEC source: 0001209191-23-039890 · doc4.xml · nonDerivative · entry 2

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,833

SEC source: 0001209191-23-039890 · doc4.xml · nonDerivative · entry 1

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,111

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Novavax, Inc. (the "Company") common stock.

SEC source: 0001209191-23-018547 · doc4.xml · derivative · entry 4

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,216

Underlying: Common Stock · 4,609 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.

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Novavax, Inc. (the "Company") common stock.

F4 · derivative.exercise_date: The RSUs subject to this grant under the Company's Amended and Restated 2015 Stock Incentive Plan, as amended, vested or will vest with respect to one-third (1/3) of the RSUs on each of the first three (3) anniversaries of the March 10, 2022 grant date, in each case subject to continued employment through such vesting date.

F4 · derivative.expiration_date: The RSUs subject to this grant under the Company's Amended and Restated 2015 Stock Incentive Plan, as amended, vested or will vest with respect to one-third (1/3) of the RSUs on each of the first three (3) anniversaries of the March 10, 2022 grant date, in each case subject to continued employment through such vesting date.

SEC source: 0001209191-23-018547 · doc4.xml · nonDerivative · entry 2

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,278

SEC source: 0001209191-23-018547 · doc4.xml · nonDerivative · entry 1

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,058

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 · kind: The shares were received by the reporting person in connection with vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-017583 · doc4.xml · derivative · entry 2

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,330

Underlying: Common Stock · 38,330 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Company's common stock.

F3 · derivative.exercise_date: One-third (1/3) of the RSUs subject to this grant under the Plan will vest on each of the first three (3) anniversaries of the Grant Date, in each case subject to continued employment through such vesting date.

F3 · derivative.expiration_date: One-third (1/3) of the RSUs subject to this grant under the Plan will vest on each of the first three (3) anniversaries of the Grant Date, in each case subject to continued employment through such vesting date.

SEC source: 0001209191-23-017583 · doc4.xml · derivative · entry 1

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,280

Underlying: Common Stock · 44,280 shares

Expires 2033-03-07

F1 · derivative.exercise_date: Twenty-five percent (25%) of the shares subject to this option grant under the Novavax, Inc. (the "Company") Amended and Restated 2015 Stock Incentive Plan, as amended (the "Plan"), will vest on the first anniversary of the March 7, 2023 grant date (the "Grant Date"), and the remaining seventy-five percent (75%) of the shares will vest in equal monthly installments over the following three (3) years, in each case subject to continued employment through such vesting date.

SEC source: 0001209191-22-061705 · doc4.xml · derivative · entry 4

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,100

Underlying: Common Stock · 2,100 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.

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Novavax, Inc. (the "Company") common stock.

F6 · derivative.exercise_date: The RSUs subject to this grant under the Company's Amended and Restated 2015 Stock Incentive Plan, as amended, vested or will vest with respect to one-third (1/3) of the RSUs on each of the first three (3) anniversaries of the December 14, 2020 grant date, in each case subject to continued employment through such vesting date.

F6 · derivative.expiration_date: The RSUs subject to this grant under the Company's Amended and Restated 2015 Stock Incentive Plan, as amended, vested or will vest with respect to one-third (1/3) of the RSUs on each of the first three (3) anniversaries of the December 14, 2020 grant date, in each case subject to continued employment through such vesting date.

SEC source: 0001209191-22-061705 · doc4.xml · nonDerivative · entry 2

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,449

F3 · kind: The shares were withheld by the Company to satisfy tax withholding obligations in connection with the vesting of RSUs.

F4 · balance_after: The shares reported on this Form 4 are subject to a lock-up agreement between the Reporting Person, J.P. Morgan Securities LLC and Jefferies LLC, dated December 14, 2022.

SEC source: 0001209191-22-061705 · doc4.xml · nonDerivative · entry 1

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,149

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 · kind: The shares were received by the Reporting Person in connection with vesting of restricted stock units ("RSUs").

F2 · price: Each RSU represents a contingent right to receive one share of Novavax, Inc. (the "Company") common stock.

SEC source: 0001209191-22-051471 · doc4.xml · derivative · entry 6

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By spouse

Disclosed balance after: 0

Underlying: Common Stock · 667 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Novavax, Inc. (the "Company") common stock.

F4 · derivative.exercise_date: The RSUs subject to this grant under the Company's Amended and Restated 2015 Stock Incentive Plan, as amended, vested with respect to one-third (1/3) of the RSUs on each of the first three (3) anniversaries of the Grant Date, in each case subject to continued service with the Company through such vesting date.

F4 · derivative.expiration_date: The RSUs subject to this grant under the Company's Amended and Restated 2015 Stock Incentive Plan, as amended, vested with respect to one-third (1/3) of the RSUs on each of the first three (3) anniversaries of the Grant Date, in each case subject to continued service with the Company through such vesting date.

SEC source: 0001209191-22-051471 · doc4.xml · derivative · entry 5

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,973 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Novavax, Inc. (the "Company") common stock.

F3 · derivative.exercise_date: The RSUs subject to this grant under the Company's Amended and Restated 2015 Stock Incentive Plan, as amended, vested with respect to one-third (1/3) of the RSUs on each of the first three (3) anniversaries of the September 26, 2019 grant date (the "Grant Date"), in each case subject to continued employment through such vesting date.

F3 · derivative.expiration_date: The RSUs subject to this grant under the Company's Amended and Restated 2015 Stock Incentive Plan, as amended, vested with respect to one-third (1/3) of the RSUs on each of the first three (3) anniversaries of the September 26, 2019 grant date (the "Grant Date"), in each case subject to continued employment through such vesting date.

SEC source: 0001209191-22-051471 · doc4.xml · nonDerivative · entry 4

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By spouse

Disclosed balance after: 3,384

F2 · balance_after: The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.

SEC source: 0001209191-22-051471 · doc4.xml · nonDerivative · entry 3

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By spouse

Disclosed balance after: 3,642

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Novavax, Inc. (the "Company") common stock.

F2 · balance_after: The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.

SEC source: 0001209191-22-051471 · doc4.xml · nonDerivative · entry 2

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,049

SEC source: 0001209191-22-051471 · doc4.xml · nonDerivative · entry 1

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,373

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Novavax, Inc. (the "Company") common stock.

SEC source: 0001209191-22-047756 · doc4.xml · derivative · entry 4

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By spouse

Disclosed balance after: 0

Underlying: Common Stock · 2,000 shares

Expires 2030-04-17

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Novavax, Inc. (the "Company") common stock.

F3 · derivative.exercise_date: On April 17, 2020, the reporting person's spouse, who is a consultant for the Company, was granted 4,000 RSUs pursuant to the Company's Amended and Restated 2015 Stock Incentive Plan, as amended. The vesting of the RSUs subject to this grant is subject to the satisfaction of a performance-based vesting requirement, followed by time-based vesting. The performance metric required that the Company initiate a COVID-19 Phase 2 clinical trial within twelve (12) months of the grant date, which occurred when the Company initiated its Phase 2 clinical trial of NVX-CoV2373 in the U.S. on August 24, 2020. Following that event, fifty percent (50%) of the RSUs vested on August 24, 2021, the first anniversary of the initiation date, and the remaining fifty percent (50%) of the RSUs vested on August 24, 2022, the second anniversary of the initiation date subject to continued service with the Company through such vesting date.

SEC source: 0001209191-22-047756 · doc4.xml · nonDerivative · entry 2

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By spouse

Disclosed balance after: 2,975

F2 · balance_after: The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.

SEC source: 0001209191-22-047756 · doc4.xml · nonDerivative · entry 1

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By spouse

Disclosed balance after: 3,747

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Novavax, Inc. (the "Company") common stock.

F2 · balance_after: The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.

SEC source: 0001209191-22-039638 · doc4.xml · derivative · entry 4

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 833

Underlying: Common Stock · 833 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Novavax, Inc. (the "Company") common stock.

F3 · derivative.exercise_date: The RSUs subject to this grant under the Company's Amended and Restated 2015 Stock Incentive Plan, as amended, vested or will vest with respect to one-third (1/3) of the RSUs on each of the first three (3) anniversaries of the June 25, 2020 grant date, in each case subject to continued employment through such vesting date.

F3 · derivative.expiration_date: The RSUs subject to this grant under the Company's Amended and Restated 2015 Stock Incentive Plan, as amended, vested or will vest with respect to one-third (1/3) of the RSUs on each of the first three (3) anniversaries of the June 25, 2020 grant date, in each case subject to continued employment through such vesting date.

SEC source: 0001209191-22-039638 · doc4.xml · nonDerivative · entry 2

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,400

SEC source: 0001209191-22-039638 · doc4.xml · nonDerivative · entry 1

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,678

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Novavax, Inc. (the "Company") common stock.

SEC source: 0001209191-22-018658 · doc4.xml · derivative · entry 2

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,825

Underlying: Common Stock · 13,825 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Company's common stock.

F3 · derivative.exercise_date: One-third (1/3) of the RSUs subject to this grant under the Plan will vest on each of the first three (3) anniversaries of the Grant Date, in each case subject to continued employment through such vesting date.

F3 · derivative.expiration_date: One-third (1/3) of the RSUs subject to this grant under the Plan will vest on each of the first three (3) anniversaries of the Grant Date, in each case subject to continued employment through such vesting date.

SEC source: 0001209191-22-018658 · doc4.xml · derivative · entry 1

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,737

Underlying: Common Stock · 20,737 shares

Expires 2032-03-10

F1 · derivative.exercise_date: Twenty-five percent (25%) of the shares subject to this option grant under the Novavax, Inc. (the "Company") Amended and Restated 2015 Stock Incentive Plan, as amended (the "Plan"), will vest on the first anniversary of the March 10, 2022 grant date (the "Grant Date"), and the remaining seventy-five percent (75%) of the shares will vest in equal monthly installments over the following three (3) years, in each case subject to continued employment through such vesting date.

SEC source: 0001209191-22-001815 · doc4.xml · derivative · entry 11

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 80,000

Underlying: Common Stock · 5,000 shares

Expires 2030-04-17

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 · kind: The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F10 · derivative.exercise_date: On April 17, 2020, the reporting person was granted an option to purchase 125,000 shares of common stock of the Company pursuant to the Company's Amended and Restated 2015 Stock Incentive Plan, as amended. The vesting of the shares subject to this option grant is subject to the satisfaction of a performance-based vesting requirement, followed by time-based vesting. The performance metric required that the Company initiate a COVID-19 Phase 2 clinical trial within twelve (12) months of the grant date, which occurred when the Company initiated its Phase 2 clinical trial of NVX-CoV2373 in the U.S. on August 24, 2020. Following that event, fifty percent (50%) of the shares vested on August 24, 2021, the first anniversary of the initiation date, and the remaining fifty percent (50%) of the shares will vest on August 24, 2022, the second anniversary of the initiation date subject to continued employment through such vesting date.

SEC source: 0001209191-22-001815 · doc4.xml · nonDerivative · entry 9

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,845

F1 · kind: The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001209191-22-001815 · doc4.xml · nonDerivative · entry 8

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,945

F1 · kind: The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F8 · price: The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $143.38 to $143.96, inclusive. The reporting person undertakes to provide to the Company, any security holder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each price within the range set forth in this footnote.

SEC source: 0001209191-22-001815 · doc4.xml · nonDerivative · entry 7

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,948

F1 · kind: The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F7 · price: The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $142.25 to $142.96, inclusive. The reporting person undertakes to provide to the Company, any security holder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each price within the range set forth in this footnote.

SEC source: 0001209191-22-001815 · doc4.xml · nonDerivative · entry 6

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,748

F1 · kind: The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F6 · price: The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $141.22 to $142.04, inclusive. The reporting person undertakes to provide to the Company, any security holder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each price within the range set forth in this footnote.

SEC source: 0001209191-22-001815 · doc4.xml · nonDerivative · entry 5

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,548

F1 · kind: The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F5 · price: The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $139.68 to $140.31, inclusive. The reporting person undertakes to provide to the Company, any security holder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each price within the range set forth in this footnote.

SEC source: 0001209191-22-001815 · doc4.xml · nonDerivative · entry 4

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,048

F1 · kind: The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F4 · price: The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $138.63 to $139.41, inclusive. The reporting person undertakes to provide to the Company, any security holder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each price within the range set forth in this footnote.

SEC source: 0001209191-22-001815 · doc4.xml · nonDerivative · entry 3

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,045

F1 · kind: The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F3 · price: The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $137.60 to $138.55, inclusive. The reporting person undertakes to provide to the Company, any security holder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each price within the range set forth in this footnote.

SEC source: 0001209191-22-001815 · doc4.xml · nonDerivative · entry 2

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,445

F1 · kind: The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F2 · price: The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $136.29 to $137.26, inclusive. The reporting person undertakes to provide to Novavax, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each price within the range set forth in this footnote.

SEC source: 0001209191-22-001815 · doc4.xml · nonDerivative · entry 1

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,845

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 · kind: The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001209191-21-070957 · doc4.xml · derivative · entry 4

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 85,000

Underlying: Common Stock · 5,000 shares

Expires 2030-04-17

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 · kind: The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F3 · derivative.exercise_date: On April 17, 2020, the reporting person was granted an option to purchase 125,000 shares of common stock of Novavax, Inc. (the "Company") pursuant to the Company's Amended and Restated 2015 Stock Incentive Plan, as amended. The vesting of the shares subject to this option grant is subject to the satisfaction of a performance-based vesting requirement, followed by time-based vesting. The performance metric required that the Company initiate a COVID-19 Phase 2 clinical trial within twelve (12) months of the grant date, which occurred when the Company initiated its Phase 2 clinical trial of NVX-CoV2373 in the U.S. on August 24, 2020. Following that event, fifty percent (50%) of the shares vested on August 24, 2021, the first anniversary of the initiation date, and the remaining fifty percent (50%) of the shares will vest on August 24, 2022, the second anniversary of the initiation date subject to continued employment through such vesting date.

SEC source: 0001209191-21-070957 · doc4.xml · nonDerivative · entry 2

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,845

F1 · kind: The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001209191-21-070957 · doc4.xml · nonDerivative · entry 1

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,845

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 · kind: The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001209191-21-070017 · doc4.xml · derivative · entry 4

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,200

Underlying: Common Stock · 2,100 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Novavax, Inc. (the "Company") common stock.

F3 · derivative.exercise_date: The RSUs subject to this grant under the Company's Amended and Restated 2015 Stock Incentive Plan, as amended, vested or will vest with respect to one-third (1/3) of the RSUs on each of the first three (3) anniversaries of the December 14, 2020 grant date, in each case subject to continued employment through such vesting date.

F3 · derivative.expiration_date: The RSUs subject to this grant under the Company's Amended and Restated 2015 Stock Incentive Plan, as amended, vested or will vest with respect to one-third (1/3) of the RSUs on each of the first three (3) anniversaries of the December 14, 2020 grant date, in each case subject to continued employment through such vesting date.

SEC source: 0001209191-21-070017 · doc4.xml · nonDerivative · entry 2

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,845

SEC source: 0001209191-21-070017 · doc4.xml · nonDerivative · entry 1

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,860

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Novavax, Inc. (the "Company") common stock.

SEC source: 0001209191-21-067969 · doc4.xml · derivative · entry 12

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 90,000

Underlying: Common Stock · 5,000 shares

Expires 2030-04-17

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 · kind: The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F12 · derivative.exercise_date: On April 17, 2020, the reporting person was granted an option to purchase 125,000 shares of common stock of the Company pursuant to the Company's Amended and Restated 2015 Stock Incentive Plan, as amended. The vesting of the shares subject to this option grant is subject to the satisfaction of a performance-based vesting requirement, followed by time-based vesting. The performance metric required that the Company initiate a COVID-19 Phase 2 clinical trial within twelve (12) months of the grant date, which occurred when the Company initiated its Phase 2 clinical trial of NVX-CoV2373 in the U.S. on August 24, 2020. Following that event, fifty percent (50%) of the shares vested on August 24, 2021, the first anniversary of the initiation date, and the remaining fifty percent (50%) of the shares will vest on August 24, 2022, the second anniversary of the initiation date subject to continued employment through such vesting date.

SEC source: 0001209191-21-067969 · doc4.xml · nonDerivative · entry 10

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,760

F1 · kind: The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F10 · price: The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $202.23 to $202.50, inclusive. The reporting person undertakes to provide to the Company, any security holder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each price within the range set forth in this footnote.

SEC source: 0001209191-21-067969 · doc4.xml · nonDerivative · entry 9

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,126

F1 · kind: The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F9 · price: The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $200.75 to $201.12, inclusive. The reporting person undertakes to provide to the Company, any security holder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each price within the range set forth in this footnote.

SEC source: 0001209191-21-067969 · doc4.xml · nonDerivative · entry 8

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,426

F1 · kind: The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F8 · price: The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $199.62 to $200.00, inclusive. The reporting person undertakes to provide to the Company, any security holder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each price within the range set forth in this footnote.

SEC source: 0001209191-21-067969 · doc4.xml · nonDerivative · entry 7

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,726

F1 · kind: The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F7 · price: The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $197.90 to $198.76, inclusive. The reporting person undertakes to provide to the Company, any security holder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each price within the range set forth in this footnote.

SEC source: 0001209191-21-067969 · doc4.xml · nonDerivative · entry 6

Herrmann John A III · CIK 0001610928 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,126

F1 · kind: The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F6 · price: The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $196.73 to $197.51, inclusive. The reporting person undertakes to provide to the Company, any security holder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each price within the range set forth in this footnote.