John Maraganore - May 13, 2021 Form 4 Insider Report for ALNYLAM PHARMACEUTICALS, INC. (ALNY)

Role
Chief Executive Officer, Director
Signature
By: /s/ Mary Beth DeLena, Attorney-in-Fact For: John M. Maraganore
Stock symbol
ALNY
Transactions as of
May 13, 2021
Transactions value $
-$4,202,474
Form type
4
Date filed
5/17/2021, 07:25 PM
Next filing
May 24, 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ALNY Common Stock Options Exercise $241K +34K +15.82% $7.10* 249K May 13, 2021 Direct F1
transaction ALNY Common Stock Sale -$387K -3.02K -1.21% $128.30 246K May 13, 2021 Direct F1, F2
transaction ALNY Common Stock Sale -$583K -4.51K -1.84% $129.32 241K May 13, 2021 Direct F1, F3
transaction ALNY Common Stock Sale -$1.19M -9.12K -3.78% $130.34 232K May 13, 2021 Direct F1, F4
transaction ALNY Common Stock Sale -$1.47M -11.2K -4.83% $131.18 221K May 13, 2021 Direct F1, F5
transaction ALNY Common Stock Sale -$461K -3.48K -1.58% $132.32 217K May 13, 2021 Direct F1, F6
transaction ALNY Common Stock Sale -$217K -1.62K -0.75% $133.56 216K May 13, 2021 Direct F1, F7
transaction ALNY Common Stock Sale -$137K -1.02K -0.47% $134.37 215K May 13, 2021 Direct F1, F8
holding ALNY Common Stock 3.13K May 13, 2021 by Managed Account F9

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction ALNY Stock Option (right to buy) Options Exercise $0 -34K -33.33% $0.00 68K May 13, 2021 Common Stock 34K $7.10 Direct F1, F10
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 All sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 9, 2020. The 33,979 options exercised and sold by the reporting person were due to expire on November 30, 2021.
F2 Sale prices ranged from $127.73 to $128.73.
F3 Sale prices ranged from $128.80 to $129.77.
F4 Sale prices ranged from $129.81 to $130.81.
F5 Sale prices ranged from $130.82 to $131.81.
F6 Sale prices ranged from $131.84 to $132.78.
F7 Sale prices ranged from $132.97 to $133.77.
F8 Sale prices ranged from $134.11 to $134.40.
F9 Reflects shares of ALNY common stock acquired by the reporting person under the ALNY 401(k) plan as a result of the ALNY 401(k) matching contribution program.
F10 The stock option vested as to 25% of the shares on the 1st anniversary of the date of the stock option grant and as to an additional 6.25% of the shares each successive three month period thereafter.