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sellWeak cluster of 510b5-1 plan

Patrick O'Brien sold $736k of ARWR

COO and General Counsel at ARROWHEAD PHARMACEUTICALS, INC.. 37,184 shares at an average of $19.80, traded Jan 6, 2025, filed Jan 7, 2025.

Warning score
36
Value
$736k
37,184 shares
Holdings after
527,201
-7% from before
From 52-week low
+10%
low $17.70, close $19.50
From 52-week high
-26%
high $26.34, as of Jan 6, 2025

Score components

  • Role
    COO
    +20
  • Trade size
    $736k at market
    +21
  • Share of holdings sold
    Sold 6.6% of holdings
    0
  • Cluster
    5 insiders selling within 14 days
    +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.

This signal so far: 1m +4.1%, 3m -49.2%, 6m -10.8%.

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.

ARWROct 9, 2026 · close 62.75
Since filing Jan 7, 2025: +219.0%SPY +34.8% · excess +184.2%

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 0001628280-25-000806, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jan 4, 2025AGrant or award
Common Stock10b5-1
+100,000$0.00$0564,385Jan 7, 2025
Jan 6, 2025SOpen-market sale
Common Stock10b5-1
-19,658$19.69$387k544,727Jan 7, 2025
Jan 6, 2025SOpen-market sale
Common Stock10b5-1
-9,526$20.10$191k535,201Jan 7, 2025
Jan 7, 2025SOpen-market sale
Common Stock10b5-1
-8,000$19.69$158k527,201Jan 7, 2025

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
34Weak
ARWRsell 2
ARROWHEAD PHARMACEUTICALS, INC.
Adeoye Y Olukotun
director
$174k
2,000 shares
-6%
48Moderate
ARWRsell 2
ARROWHEAD PHARMACEUTICALS, INC.
Michael S Perry
director
$1.0M
11,600 shares
-9%
8Weak
ARWRsell10b5-1
ARROWHEAD PHARMACEUTICALS, INC.
Hongbo Lu
director
$228k
2,970 shares
-5%
34Weak
ARWRsell 210b5-1
ARROWHEAD PHARMACEUTICALS, INC.
Daniel Joseph Apel
Chief Financial Officer
$934k
13,095 shares
-7%
25Weak
ARWRsell 210b5-1
ARROWHEAD PHARMACEUTICALS, INC.
James C Hamilton
Chief Medical Officer
$750k
10,000 shares
-4%
15Weak
ARWRsell10b5-1
ARROWHEAD PHARMACEUTICALS, INC.
James C Hamilton
Chief Medical Officer
$642k
10,000 shares
-4%
43Moderate
ARWRsell 710b5-1
ARROWHEAD PHARMACEUTICALS, INC.
Christopher Richard Anzalone
Chief Executive Officer
$872k
13,187 shares
-0%
40Moderate
ARWRsell 410b5-1
ARROWHEAD PHARMACEUTICALS, INC.
Patrick O'Brien
COO
$3.1M
49,493 shares
-9%
40Moderate
ARWRsell 410b5-1
ARROWHEAD PHARMACEUTICALS, INC.
James C Hamilton
Chief Medical Officer
$2.5M
40,164 shares
-19%
30Weak
ARWRsell 710b5-1
ARROWHEAD PHARMACEUTICALS, INC.
Christopher Richard Anzalone
Chief Executive Officer
$3.6M
51,726 shares
-1%

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.

Patrick O'Brien sold $736k of ARWR | InsiderTell