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sellWeak

Bryan Supran sold $399k of ALNY

EVP, CLO and Secretary at ALNYLAM PHARMACEUTICALS, INC.. 1,758 shares at an average of $226.88, traded Oct 2, 2026, filed Oct 6, 2026.

Warning score
36
Value
$399k
1,758 shares
Holdings after
12,807
-12% from before
From 52-week low
+7%
low $205.48, close $219.72
From 52-week high
-55%
high $491.22, as of Oct 2, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $399k at market
    +16
  • Share of holdings sold
    Sold 12% of holdings
    +5
  • Cluster
    No other insider selling within 14 days
    0

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

ALNYOct 9, 2026 · close 232.68
Since filing Oct 6, 2026: +3.9%SPY -0.1% · excess +4.0%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001178670-26-000068, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Oct 2, 2026SOpen-market sale
Common Stock
-1,758$226.88$399k12,8077 d ago

Related signals

Other insiders at ALNYLAM PHARMACEUTICALS, INC. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
25Weak
ALNYsell10b5-1
ALNYLAM PHARMACEUTICALS, INC.
David E I Pyott
director
$1.1M
3,830 shares
-71%
30Weak
ALNYsell10b5-1
ALNYLAM PHARMACEUTICALS, INC.
Melissa McLaughlin
Chief Human Resources Officer
$1.3M
3,910 shares
-29%
26Weak
ALNYsell 510b5-1
ALNYLAM PHARMACEUTICALS, INC.
Kevin Joseph Fitzgerald
CSO & EVP, Head of Research
$418k
1,291 shares
-6%
51Moderate
ALNYsell 5
ALNYLAM PHARMACEUTICALS, INC.
Tolga Tanguler
EVP, Chief Commercial Officer
$746k
2,309 shares
-6%
59Moderate
ALNYsell 5
ALNYLAM PHARMACEUTICALS, INC.
Jeffrey V. Poulton
EVP, Chief Financial Officer
$797k
2,468 shares
-4%
64Notable
ALNYsell 5
ALNYLAM PHARMACEUTICALS, INC.
Yvonne Greenstreet
Chief Executive Officer
$948k
2,933 shares
-3%
40Moderate
ALNYsell 510b5-1
ALNYLAM PHARMACEUTICALS, INC.
Pushkal Garg
EVP Chief R&D
$1.5M
4,713 shares
-20%
65Notable
ALNYsell 5
ALNYLAM PHARMACEUTICALS, INC.
Yvonne Greenstreet
Chief Executive Officer
$2.2M
6,799 shares
-6%
48Moderate
ALNYsell 5
ALNYLAM PHARMACEUTICALS, INC.
Tolga Tanguler
EVP, Chief Commercial Officer
$524k
1,598 shares
-4%
40Moderate
ALNYsell 510b5-1
ALNYLAM PHARMACEUTICALS, INC.
Kevin Joseph Fitzgerald
CSO & EVP, Head of Research
$1.1M
3,250 shares
-13%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Bryan Supran sold $399k of ALNY | InsiderTell