ALNY

SEC source: 0001735276-24-000020 · edgardoc.xml · nonDerivative · entry 6

Tanguler Tolga · CIK 0001849458 · EVP, Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,236

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

SEC source: 0001735276-24-000020 · edgardoc.xml · nonDerivative · entry 5

Tanguler Tolga · CIK 0001849458 · EVP, Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,237

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F5 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $157.01 to $157.99. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000020 · edgardoc.xml · nonDerivative · entry 4

Tanguler Tolga · CIK 0001849458 · EVP, Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,251

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F4 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $155.96 to $156.91. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000020 · edgardoc.xml · nonDerivative · entry 3

Tanguler Tolga · CIK 0001849458 · EVP, Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,351

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F3 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $154.95 to $155.95. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000020 · edgardoc.xml · nonDerivative · entry 2

Tanguler Tolga · CIK 0001849458 · EVP, Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,521

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F2 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $153.94 to $154.94. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000019 · edgardoc.xml · nonDerivative · entry 6

Poulton Jeffrey V. · CIK 0001782962 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,478

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

SEC source: 0001735276-24-000019 · edgardoc.xml · nonDerivative · entry 5

Poulton Jeffrey V. · CIK 0001782962 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,479

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F5 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $157.01 to $157.99. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000019 · edgardoc.xml · nonDerivative · entry 4

Poulton Jeffrey V. · CIK 0001782962 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,496

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F4 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $155.96 to $156.91. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000019 · edgardoc.xml · nonDerivative · entry 3

Poulton Jeffrey V. · CIK 0001782962 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,611

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F3 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $154.95 to $155.95. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000019 · edgardoc.xml · nonDerivative · entry 2

Poulton Jeffrey V. · CIK 0001782962 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,805

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F2 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $153.94 to $154.94. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000018 · edgardoc.xml · nonDerivative · entry 6

Greenstreet Yvonne · CIK 0001446125 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,128

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

SEC source: 0001735276-24-000018 · edgardoc.xml · nonDerivative · entry 5

Greenstreet Yvonne · CIK 0001446125 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,136

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F5 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $157.01 to $157.99. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000018 · edgardoc.xml · nonDerivative · entry 4

Greenstreet Yvonne · CIK 0001446125 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,220

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F4 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $155.96 to $156.91. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000018 · edgardoc.xml · nonDerivative · entry 3

Greenstreet Yvonne · CIK 0001446125 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,808

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F3 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $154.95 to $155.95. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000018 · edgardoc.xml · nonDerivative · entry 2

Greenstreet Yvonne · CIK 0001446125 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,801

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F2 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $153.94 to $154.94. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000017 · edgardoc.xml · nonDerivative · entry 6

Garg Pushkal · CIK 0001829252 · CMO & EVP Dev & Med Affairs

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,666

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

SEC source: 0001735276-24-000017 · edgardoc.xml · nonDerivative · entry 5

Garg Pushkal · CIK 0001829252 · CMO & EVP Dev & Med Affairs

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,667

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F5 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $157.01 to $157.99. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000017 · edgardoc.xml · nonDerivative · entry 4

Garg Pushkal · CIK 0001829252 · CMO & EVP Dev & Med Affairs

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,684

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F4 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $155.96 to $156.91. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000017 · edgardoc.xml · nonDerivative · entry 3

Garg Pushkal · CIK 0001829252 · CMO & EVP Dev & Med Affairs

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,799

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F3 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $154.95 to $155.95. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000017 · edgardoc.xml · nonDerivative · entry 2

Garg Pushkal · CIK 0001829252 · CMO & EVP Dev & Med Affairs

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,993

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F2 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $153.94 to $154.94. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000016 · edgardoc.xml · nonDerivative · entry 6

Franchini Indrani Lall · CIK 0001708764 · EVP, CLO & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,133

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

SEC source: 0001735276-24-000016 · edgardoc.xml · nonDerivative · entry 5

Franchini Indrani Lall · CIK 0001708764 · EVP, CLO & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,134

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F5 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $157.01 to $157.99. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000016 · edgardoc.xml · nonDerivative · entry 4

Franchini Indrani Lall · CIK 0001708764 · EVP, CLO & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,143

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F4 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $155.96 to $156.91. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000016 · edgardoc.xml · nonDerivative · entry 3

Franchini Indrani Lall · CIK 0001708764 · EVP, CLO & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,209

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F3 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $154.95 to $155.95. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000016 · edgardoc.xml · nonDerivative · entry 2

Franchini Indrani Lall · CIK 0001708764 · EVP, CLO & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,320

F1 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F2 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $153.94 to $154.94. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000020 · edgardoc.xml · derivative · entry 7

Tanguler Tolga · CIK 0001849458 · EVP, Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,333

Underlying: Common Stock · 1,667 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.

F6 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of ALNY common stock.

F7 · derivative.exercise_date: On February 27, 2023, the reporting person was granted 5,000 restricted stock units that vest ratably on each of the first, second and third anniversaries of the Grant Date. On February 27, 2024, the first tranche of restricted stock units from the February 27, 2023 grant vested and was released, as reported on this Form 4.

F7 · derivative.expiration_date: On February 27, 2023, the reporting person was granted 5,000 restricted stock units that vest ratably on each of the first, second and third anniversaries of the Grant Date. On February 27, 2024, the first tranche of restricted stock units from the February 27, 2023 grant vested and was released, as reported on this Form 4.

SEC source: 0001735276-24-000020 · edgardoc.xml · nonDerivative · entry 1

Tanguler Tolga · CIK 0001849458 · EVP, Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,737

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: 0001735276-24-000019 · edgardoc.xml · derivative · entry 8

Poulton Jeffrey V. · CIK 0001782962 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,816

Underlying: Common Stock · 1,908 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.

F7 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of ALNY common stock.

F8 · derivative.exercise_date: On February 27, 2023, the reporting person was granted 5,724 restricted stock units that vest ratably on each of the first, second and third anniversaries of the Grant Date. On February 27, 2024, the first tranche of restricted stock units from the February 27, 2023 grant vested and was released, as reported on this Form 4.

F8 · derivative.expiration_date: On February 27, 2023, the reporting person was granted 5,724 restricted stock units that vest ratably on each of the first, second and third anniversaries of the Grant Date. On February 27, 2024, the first tranche of restricted stock units from the February 27, 2023 grant vested and was released, as reported on this Form 4.

SEC source: 0001735276-24-000019 · edgardoc.xml · nonDerivative · entry 1

Poulton Jeffrey V. · CIK 0001782962 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,052

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: 0001735276-24-000018 · edgardoc.xml · derivative · entry 8

Greenstreet Yvonne · CIK 0001446125 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,842

Underlying: Common Stock · 5,921 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.

F7 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of ALNY common stock.

F8 · derivative.exercise_date: On February 27, 2023, the reporting person was granted 17,763 restricted stock units that vest ratably on each of the first, second and third anniversaries of the Grant Date. On February 27, 2024, the first tranche of restricted stock units from the February 27, 2023 grant vested and was released, as reported on this Form 4.

F8 · derivative.expiration_date: On February 27, 2023, the reporting person was granted 17,763 restricted stock units that vest ratably on each of the first, second and third anniversaries of the Grant Date. On February 27, 2024, the first tranche of restricted stock units from the February 27, 2023 grant vested and was released, as reported on this Form 4.

SEC source: 0001735276-24-000018 · edgardoc.xml · nonDerivative · entry 1

Greenstreet Yvonne · CIK 0001446125 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,060

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: 0001735276-24-000017 · edgardoc.xml · derivative · entry 9

Garg Pushkal · CIK 0001829252 · CMO & EVP Dev & Med Affairs

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,816

Underlying: Common Stock · 1,908 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.

F8 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of ALNY common stock.

F9 · derivative.exercise_date: On February 27, 2023, the reporting person was granted 5,724 restricted stock units that vest ratably on each of the first, second and third anniversaries of the Grant Date. On February 27, 2024, the first tranche of restricted stock units from the February 27, 2023 grant vested and was released, as reported on this Form 4.

F9 · derivative.expiration_date: On February 27, 2023, the reporting person was granted 5,724 restricted stock units that vest ratably on each of the first, second and third anniversaries of the Grant Date. On February 27, 2024, the first tranche of restricted stock units from the February 27, 2023 grant vested and was released, as reported on this Form 4.

SEC source: 0001735276-24-000017 · edgardoc.xml · nonDerivative · entry 1

Garg Pushkal · CIK 0001829252 · CMO & EVP Dev & Med Affairs

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,240

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: 0001735276-24-000016 · edgardoc.xml · derivative · entry 7

Franchini Indrani Lall · CIK 0001708764 · EVP, CLO & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,754

Underlying: Common Stock · 878 shares

Expires 2026-02-27

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.

F6 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of ALNY common stock.

F7 · derivative.exercise_date: The restricted stock units vest ratably in three installments, with one third vesting on each of the first, second and third anniversaries of the grant date.

F8 · derivative.expiration_date: On February 27, 2023, the reporting person was granted 2,632 restricted stock units that vest ratably on each of the first, second and third anniversaries of the Grant Date. On February 27, 2024, the first tranche of restricted stock units from the February 27, 2023 grant vested and was released, as reported on this Form 4.

SEC source: 0001735276-24-000016 · edgardoc.xml · nonDerivative · entry 1

Franchini Indrani Lall · CIK 0001708764 · EVP, CLO & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,462

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: 0001735276-24-000010 · edgardoc.xml · nonDerivative · entry 4

Garg Pushkal · CIK 0001829252 · CMO & EVP Dev & Med Affairs

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,332

F2 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F5 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $148.96 to $149.49. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000010 · edgardoc.xml · nonDerivative · entry 3

Garg Pushkal · CIK 0001829252 · CMO & EVP Dev & Med Affairs

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,488

F2 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F4 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $147.88 to $148.83. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000010 · edgardoc.xml · nonDerivative · entry 2

Garg Pushkal · CIK 0001829252 · CMO & EVP Dev & Med Affairs

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,160

F2 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F3 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $146.88 to $147.87. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000009 · edgardoc.xml · nonDerivative · entry 4

Poulton Jeffrey V. · CIK 0001782962 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,144

F2 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F5 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $148.96 to $149.49. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000009 · edgardoc.xml · nonDerivative · entry 3

Poulton Jeffrey V. · CIK 0001782962 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,264

F2 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F4 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $147.88 to $148.83. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000009 · edgardoc.xml · nonDerivative · entry 2

Poulton Jeffrey V. · CIK 0001782962 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,782

F2 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F3 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $146.88 to $147.87. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000008 · edgardoc.xml · nonDerivative · entry 4

Tanguler Tolga · CIK 0001849458 · EVP, Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,070

F2 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F5 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $148.96 to $149.49. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000008 · edgardoc.xml · nonDerivative · entry 3

Tanguler Tolga · CIK 0001849458 · EVP, Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,191

F2 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F4 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $147.88 to $148.83. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000008 · edgardoc.xml · nonDerivative · entry 2

Tanguler Tolga · CIK 0001849458 · EVP, Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,710

F2 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F3 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $146.88 to $147.87. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000007 · edgardoc.xml · nonDerivative · entry 4

Greenstreet Yvonne · CIK 0001446125 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,139

F2 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F5 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $148.96 to $149.49. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000007 · edgardoc.xml · nonDerivative · entry 3

Greenstreet Yvonne · CIK 0001446125 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,979

F2 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F4 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $147.88 to $148.83. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000007 · edgardoc.xml · nonDerivative · entry 2

Greenstreet Yvonne · CIK 0001446125 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,593

F2 · kind: Represents shares automatically sold by the Company on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover minimum statutory tax withholding obligations that became due upon the vesting and settlement of restricted stock units reported in this form.

F3 · price: The price reported represents the weighted average sales price of shares sold in multiple transactions at prices ranging from $146.88 to $147.87. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

SEC source: 0001735276-24-000010 · edgardoc.xml · nonDerivative · entry 1

Garg Pushkal · CIK 0001829252 · CMO & EVP Dev & Med Affairs

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,640

F1 · kind: On February 23, 2022, the reporting person was granted a performance-based stock unit (PSU) under the 2018 Stock Incentive Plan. The shares subject to the PSU vest based on the achievement of three specified performance measures. The shares reported were issued to the reporting person upon vesting of one-third of the shares subject to the PSU based on the issuer publicly reporting $1.5 billion in total annual revenue, as determined by The People, Culture and Compensation Committee of the Issuer Board of Directors on February 15, 2024.

SEC source: 0001735276-24-000009 · edgardoc.xml · nonDerivative · entry 1

Poulton Jeffrey V. · CIK 0001782962 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,151

F1 · kind: On February 23, 2022, the reporting person was granted a performance-based stock unit (PSU) under the 2018 Stock Incentive Plan. The shares subject to the PSU vest based on the achievement of three specified performance measures. The shares reported were issued to the reporting person upon vesting of one-third of the shares subject to the PSU based on the issuer publicly reporting $1.5 billion in total annual revenue, as determined by The People, Culture and Compensation Committee of the Issuer Board of Directors on February 15, 2024.

SEC source: 0001735276-24-000008 · edgardoc.xml · nonDerivative · entry 1

Tanguler Tolga · CIK 0001849458 · EVP, Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,079

F1 · kind: On February 23, 2022, the reporting person was granted a performance-based stock unit (PSU) under the 2018 Stock Incentive Plan. The shares subject to the PSU vest based on the achievement of three specified performance measures. The shares reported were issued to the reporting person upon vesting of one-third of the shares subject to the PSU based on the issuer publicly reporting $1.5 billion in total annual revenue, as determined by The People, Culture and Compensation Committee of the Issuer Board of Directors on February 15, 2024.