O'Hara Elaine

SEC source: 0001104659-26-023720 · tm268076-2_4seq1.xml · derivative · entry 3

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 112,666

Underlying: Common Stock · 56,334 shares

Expires 2035-03-03

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: One-third (1/3) of the RSUs subject to this grant under the Novavax, Inc. Amended and Restated 2015 Stock Incentive Plan, as amended, vest on each of the first three (3) anniversaries of March 3, 2025, in each case subject to continued employment through such vesting date.

SEC source: 0001104659-26-023720 · tm268076-2_4seq1.xml · nonDerivative · entry 2

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 134,642

F1 · shares: Represents the number of shares of common stock withheld by the Company to satisfy tax withholding requirements in connection with the RSU vesting.

SEC source: 0001104659-26-023720 · tm268076-2_4seq1.xml · nonDerivative · entry 1

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 157,071

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: 0001104659-26-023070 · tm267953-2_4seq1.xml · derivative · entry 8

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 177,500

Underlying: Common Stock · 177,500 shares

Expires 2036-03-02

F5 · derivative.exercise_date: One-quarter (1/4) of the shares subject to this option granted under the Plan vest on the first anniversary of March 2, 2026, and the remaining three-quarters (3/4) of the shares vest in equal monthly installments over the following three (3) years, in each case subject to continued employment with the Company through such vesting date.

SEC source: 0001104659-26-023070 · tm267953-2_4seq1.xml · derivative · entry 7

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,000

Underlying: Common Stock · 118,000 shares

Expires 2036-03-02

F4 · derivative.exercise_date: One-third (1/3) of the RSUs subject to this grant under the Plan vest on each of the first three (3) anniversaries of March 2, 2026, in each case subject to continued employment through such vesting date.

SEC source: 0001104659-26-025361 · tm268290-1_4aseq1.xml · derivative · entry 1

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 177,500

Underlying: Common Stock · 177,500 shares

Expires 2036-03-02

F1 · derivative.exercise_price: This Form 4/A has been filed solely to amend the exercise price as originally reported in Column 2 and price of derivative security as originally reported in Column 8 of Table II of the Reporting Person's Form 4 filed on March 3, 2026. All other information remains unchanged from the March 3, 2026 filing.

F1 · price: This Form 4/A has been filed solely to amend the exercise price as originally reported in Column 2 and price of derivative security as originally reported in Column 8 of Table II of the Reporting Person's Form 4 filed on March 3, 2026. All other information remains unchanged from the March 3, 2026 filing.

F2 · derivative.exercise_date: One-quarter (1/4) of the shares subject to this option granted under the Plan vest on the first anniversary of March 2, 2026, and the remaining three-quarters (3/4) of the shares vest in equal monthly installments over the following three (3) years, in each case subject to continued employment with the Company through such vesting date.

SEC source: 0001104659-26-023070 · tm267953-2_4seq1.xml · derivative · entry 6

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,000

Underlying: Common Stock · 40,000 shares

Expires 2034-03-01

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_date: One-third (1/3) of the RSUs subject to this grant under the Plan vest on each of the first three (3) anniversaries of March 1, 2024, in each case subject to continued employment through such vesting date.

SEC source: 0001104659-26-023070 · tm267953-2_4seq1.xml · derivative · entry 5

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 19,600 shares

Expires 2033-03-01

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: One-third (1/3) of the RSUs subject to this grant under the Novavax, Inc. Amended and Restated 2015 Stock Incentive Plan, as amended, (the "Plan") vest on each of the first three (3) anniversaries of March 1, 2023, in each case subject to continued employment through such vesting date.

SEC source: 0001104659-26-023070 · tm267953-2_4seq1.xml · nonDerivative · entry 4

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,737

F1 · shares: Represents the number of shares of common stock withheld by the Company to satisfy tax withholding requirements in connection with the RSU vesting.

SEC source: 0001104659-26-023070 · tm267953-2_4seq1.xml · nonDerivative · entry 3

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 111,706

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: 0001104659-26-023070 · tm267953-2_4seq1.xml · nonDerivative · entry 2

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,706

F1 · shares: Represents the number of shares of common stock withheld by the Company to satisfy tax withholding requirements in connection with the RSU vesting.

SEC source: 0001104659-26-023070 · tm267953-2_4seq1.xml · nonDerivative · entry 1

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 77,081

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: 0001593968-25-000303 · primary_01.xml · derivative · entry 2

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 169,000

Underlying: Common Stock · 169,000 shares

Expires 2035-03-03

F2 · derivative.exercise_date: One-third (1/3) of the RSUs subject to this grant under the Plan 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: 0001593968-25-000303 · primary_01.xml · derivative · entry 1

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 253,500

Underlying: Common Stock · 253,500 shares

Expires 2035-03-03

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

SEC source: 0001593968-25-000285 · primary_01.xml · derivative · entry 6

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,000

Underlying: Common Stock · 40,000 shares

Expires 2034-03-01

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: One-third (1/3) of the RSUs subject to this grant under the Plan 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: 0001593968-25-000285 · primary_01.xml · derivative · entry 5

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,600

Underlying: Common Stock · 19,600 shares

Expires 2033-03-01

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: One-third (1/3) of the RSUs subject to this grant under the Plan 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: 0001593968-25-000285 · primary_01.xml · nonDerivative · entry 4

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 57,481

SEC source: 0001593968-25-000285 · primary_01.xml · nonDerivative · entry 3

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 68,450

SEC source: 0001593968-25-000285 · primary_01.xml · nonDerivative · entry 2

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,825

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: 0001593968-25-000285 · primary_01.xml · nonDerivative · entry 1

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,825

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: 0001104659-24-031167 · tm248061-1_4seq1.xml · derivative · entry 3

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,200

Underlying: Common Stock · 19,600 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 Company common stock.

F2 · derivative.exercise_date: The RSUs subject to this grant under the Plan will vest 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 employment through such vesting date.

F2 · derivative.expiration_date: The RSUs subject to this grant under the Plan will vest 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 employment through such vesting date.

SEC source: 0001104659-24-031167 · tm248061-1_4seq1.xml · nonDerivative · entry 2

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,225

SEC source: 0001104659-24-031167 · tm248061-1_4seq1.xml · nonDerivative · entry 1

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,600

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: 0001104659-24-039166 · tm249879-5_4seq1.xml · derivative · entry 1

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 120,000

Underlying: Common Stock · 120,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Company's common stock.

F2 · 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 March 1, 2024 grant date, in each case subject to continued employment through such vesting date.

F2 · 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 March 1, 2024 grant date, in each case subject to continued employment through such vesting date.

SEC source: 0001209191-23-015688 · doc4.xml · derivative · entry 2

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,800

Underlying: Common Stock · 58,800 shares

Expires not disclosed

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

F3 · derivative.exercise_date: The RSUs subject to this grant under the Plan will vest 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 employment through such vesting date.

F3 · derivative.expiration_date: The RSUs subject to this grant under the Plan will vest 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 employment through such vesting date.

SEC source: 0001209191-23-015688 · doc4.xml · derivative · entry 1

O'Hara Elaine · CIK 0001968045 · EVP, Chief Strategy Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,900

Underlying: Common Stock · 67,900 shares

Expires 2033-03-01

F1 · derivative.exercise_date: Twenty-five percent (25%) of the shares subject to this option grant under the Novavax, Inc. (the "Company") 2023 Inducement Plan (the "Plan") will vest on the first anniversary of the March 1, 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.