Jeffrey V. Poulton - Feb 27, 2024 Form 4 Insider Report for ALNYLAM PHARMACEUTICALS, INC. (ALNY)

Signature
By: Stephen Hall, Attorney-in-Fact For: Jeffrey V. Poulton
Stock symbol
ALNY
Transactions as of
Feb 27, 2024
Transactions value $
-$89,145
Form type
4
Date filed
2/29/2024, 04:18 PM
Previous filing
Feb 20, 2024
Next filing
Mar 5, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ALNY Common Stock Options Exercise $0 +1.91K +10.52% $0.00 20.1K Feb 27, 2024 Direct
transaction ALNY Common Stock Sale -$38.2K -247 -1.23% $154.54 19.8K Feb 28, 2024 Direct F1, F2
transaction ALNY Common Stock Sale -$30.2K -194 -0.98% $155.45 19.6K Feb 28, 2024 Direct F1, F3
transaction ALNY Common Stock Sale -$18K -115 -0.59% $156.38 19.5K Feb 28, 2024 Direct F1, F4
transaction ALNY Common Stock Sale -$2.67K -17 -0.09% $157.30 19.5K Feb 28, 2024 Direct F1, F5
transaction ALNY Common Stock Sale -$158 -1 -0.01% $158.09 19.5K Feb 28, 2024 Direct F1
holding ALNY Common Stock 57 Feb 27, 2024 by Managed Account F6

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 Restricted Stock Units Options Exercise $0 -1.91K -33.33% $0.00 3.82K Feb 27, 2024 Common Stock 1.91K Direct F7, F8
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 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 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.
F3 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.
F4 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.
F5 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.
F6 Reflects shares of ALNY common stock acquired by the reporting person under the issuer 401(k) plan as a result of the issuer 401(k) matching contribution program.
F7 Each restricted stock unit represents a contingent right to receive one share of ALNY common stock.
F8 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.