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sellWeak cluster of 210b5-1 plan

Colleen F Reitan sold $8.4M of ALNY

director at ALNYLAM PHARMACEUTICALS, INC.. 18,000 shares at an average of $467.60, traded Sep 9, 2025, filed Sep 11, 2025.

Warning score
33
Value
$8.4M
18,000 shares
Holdings after
775
-96% from before
From 52-week low
+115%
low $224.32, close $482.13
From 52-week high
0%
high $482.13, as of Sep 9, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $8.4M at market
    +25
  • Share of holdings sold
    Sold 96% of holdings
    +20
  • Cluster
    2 insiders selling within 14 days
    +8
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

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 Sep 11, 2025: -50.3%SPY +20.0% · excess -70.3%

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 0001735276-25-000097, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 9, 2025MOption exercise
Common Stock10b5-1
+18,000$100.65$1.8M18,775Sep 11, 2025
Sep 9, 2025SOpen-market sale
Common Stock10b5-1
-1,645$457.44$752k17,130Sep 11, 2025
Sep 9, 2025SOpen-market sale
Common Stock10b5-1
-1,888$458.86$866k15,242Sep 11, 2025
Sep 9, 2025SOpen-market sale
Common Stock10b5-1
-1,403$459.73$645k13,839Sep 11, 2025
Sep 9, 2025SOpen-market sale
Common Stock10b5-1
-473$460.71$218k13,366Sep 11, 2025
Sep 9, 2025SOpen-market sale
Common Stock10b5-1
-2,290$461.92$1.1M11,076Sep 11, 2025
Sep 9, 2025SOpen-market sale
Common Stock10b5-1
-1,652$463.00$765k9,424Sep 11, 2025
Sep 9, 2025SOpen-market sale
Common Stock10b5-1
-799$464.36$371k8,625Sep 11, 2025
Sep 9, 2025SOpen-market sale
Common Stock10b5-1
-222$471.25$105k8,403Sep 11, 2025
Sep 9, 2025SOpen-market sale
Common Stock10b5-1
-823$472.82$389k7,580Sep 11, 2025
Sep 9, 2025SOpen-market sale
Common Stock10b5-1
-838$474.22$397k6,742Sep 11, 2025
Sep 9, 2025SOpen-market sale
Common Stock10b5-1
-951$474.85$452k5,791Sep 11, 2025
Sep 9, 2025SOpen-market sale
Common Stock10b5-1
-972$476.31$463k4,819Sep 11, 2025
Sep 9, 2025SOpen-market sale
Common Stock10b5-1
-1,183$477.47$565k3,636Sep 11, 2025
Sep 9, 2025SOpen-market sale
Common Stock10b5-1
-1,450$478.67$694k2,186Sep 11, 2025
Sep 9, 2025SOpen-market sale
Common Stock10b5-1
-1,386$479.55$665k800Sep 11, 2025
Sep 9, 2025SOpen-market sale
Common Stock10b5-1
-25$480.98$12k775Sep 11, 2025
Sep 9, 2025MOption exercise
Stock Option (right to buy)derivative10b5-1
-18,000$0.00$00Sep 11, 2025

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
36Weak
ALNYsell
ALNYLAM PHARMACEUTICALS, INC.
Bryan Supran
EVP, CLO and Secretary
$399k
1,758 shares
-12%
40Moderate
ALNYsell 710b5-1
ALNYLAM PHARMACEUTICALS, INC.
Tolga Tanguler
EVP, Chief Commercial Officer
$1.6M
3,474 shares
-12%
30Weak
ALNYsell 710b5-1
ALNYLAM PHARMACEUTICALS, INC.
Michael W Bonney
director
$5.1M
11,250 shares
-40%
50Moderate
ALNYsell 7
ALNYLAM PHARMACEUTICALS, INC.
Kevin Joseph Fitzgerald
CSO & EVP, Head of Research
$633k
1,396 shares
-6%
70Notable
ALNYsell 7
ALNYLAM PHARMACEUTICALS, INC.
Yvonne Greenstreet
Chief Executive Officer
$3.2M
6,979 shares
-11%
62Notable
ALNYsell 7
ALNYLAM PHARMACEUTICALS, INC.
Jeffrey V. Poulton
EVP, Chief Financial Officer
$1.0M
2,274 shares
-4%
50Moderate
ALNYsell 7
ALNYLAM PHARMACEUTICALS, INC.
Tolga Tanguler
EVP, Chief Commercial Officer
$633k
1,396 shares
-5%
40Moderate
ALNYsell 710b5-1
ALNYLAM PHARMACEUTICALS, INC.
Pushkal Garg
EVP Chief R&D
$1.3M
2,851 shares
-12%
40Moderate
ALNYsell 710b5-1
ALNYLAM PHARMACEUTICALS, INC.
Dennis A Ausiello
director
$14M
31,448 shares
-97%
35Weak
ALNYsell10b5-1
ALNYLAM PHARMACEUTICALS, INC.
Yvonne Greenstreet
Chief Executive Officer
$16M
50,937 shares
-63%

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.

Colleen F Reitan sold $8.4M of ALNY | InsiderTell