Transaction · 0001178670-26-000038

Kellogg Peter N

KELLOGG PETER N, DIR, reported a transaction classified as grant at ALNYLAM PHARMACEUTICALS, INC. involving 1441.000000 shares for an estimated $0.00. Reported holdings after the transaction were 1441.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

grantSEC transaction code ADIR
ALNYALNYLAM PHARMACEUTICALS, INC.
Trade date
May 20, 2026
Filing date
May 22, 2026
View on SEC Insider profile
Disclosed value$0Shares × reported price
Shares traded1.44k$0.00 per share
Holdings after1.44kDirect
% of reported position tradedUnavailableThis security and ownership context
How reported position traded is calculated

Not calculated for derivative securities.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

ALNY price since this filing

Daily closing prices, with the filing date and available return windows
ALNY · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago +4.5%1w ago -2.0%1d ago -1.1%
Returns since7d +1.5%30d -6.5%90d -22.9%180d1y

Transaction facts

Stored Form 4 columns with their raw values

Derivative
Type
grant
Code A
Identifier
0001178670-26-000038
Stock Option (Right to Buy)
Transaction date
May 20, 2026
Filed May 22, 2026, 08:12 PM · 2d delay
Shares
1,441 sh
$0.00 per share
Estimated value
$0
Computed from shares × price
Holdings after
1,441 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Derivative Transaction Direct Ownership Large Holdings Increase
Filing-only score

-6 points

Compact filing score computed from stored Form 4 facts. Version v1.

Mixed or weak signal

This filing has a negative filing-only score. It may be less informative as an insider-activity signal and needs extra context.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
  • timely_filing+4 points

    reporting_delay_days = 2

    Filing reported within two business days of the transaction.
  • derivative_transaction-16 points

    is_derivative = true

    Derivative exercise rows are less discretionary than open-market purchases.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

No officer title

Officer NoDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    These shares are represented by restricted stock units (RSUs) granted under the Second Amended and Restated 2018 Stock Incentive Plan. Each RSU represents a contingent right to receive one share of co…

  2. F2

    The stock option will vest in full upon the earlier of the first anniversary of the grant date and the date of any earlier retirement or resignation of the Reporting Person, provided such date of reti…

Original filing · 0001178670-26-000038
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