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sellWeak cluster of 210b5-1 plan

Spencer R Berthelsen sold $588k of IONS

director at IONIS PHARMACEUTICALS INC. 8,000 shares at an average of $73.49, traded Jun 15, 2026, filed Jun 16, 2026.

Warning score
7
Value
$588k
8,000 shares
Holdings after
156,013
-5% from before
From 52-week low
+110%
low $35.24, close $73.96
From 52-week high
-14%
high $86.50, as of Jun 15, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $588k at market
    +19
  • Share of holdings sold
    Sold 4.9% of holdings
    0
  • 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.

IONSOct 9, 2026 · close 45.28
Since filing Jun 16, 2026: -38.0%SPY +4.3% · excess -42.3%

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 0000874015-26-000207, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jun 15, 2026MOption exercise
Common Stock10b5-1
+8,000$24.42$195k164,013Jun 16, 2026
Jun 15, 2026SOpen-market sale
Common Stock10b5-1
-8,000$73.49$588k156,013Jun 16, 2026
Jun 15, 2026MOption exercise
Non-Qualified Stock Option (right to buy)derivative10b5-1
-8,000$0.00$00Jun 16, 2026

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
25Weak
IONSsell 210b5-1
IONIS PHARMACEUTICALS INC
Joseph Baroldi
EVP, Chief Business Officer
$452k
5,635 shares
-55%
0Weak
IONSsell10b5-1
IONIS PHARMACEUTICALS INC
Spencer R Berthelsen
director
$605k
8,000 shares
-5%
13Weak
IONSsell 210b5-1
IONIS PHARMACEUTICALS INC
Joseph Baroldi
EVP, Chief Business Officer
$117k
1,626 shares
-3%
29Weak
IONSsell 2
IONIS PHARMACEUTICALS INC
Joseph Baroldi
EVP, Chief Business Officer
$419k
5,619 shares
-11%
16Weak
IONSsell 2
IONIS PHARMACEUTICALS INC
Brian Birchler
EVP, Corp and Development Ops
$73k
973 shares
-1%
26Weak
IONSsell 510b5-1
IONIS PHARMACEUTICALS INC
Eugene Schneider
EVP, Chf Clinical Develop Ofcr
$412k
5,812 shares
-8%
47Moderate
IONSsell 1110b5-1
IONIS PHARMACEUTICALS INC
Elizabeth L Hougen
EVP, Finance & CFO
$16M
225,220 shares
-73%
40Moderate
IONSsell 1110b5-1
IONIS PHARMACEUTICALS INC
Kyle Jenne
EVP, Chf GL Pdt Str Ofcr
$2.8M
37,277 shares
-76%
40Moderate
IONSsell 1110b5-1
IONIS PHARMACEUTICALS INC
Brett P Monia
Chief Executive Officer
$12M
160,773 shares
-44%
37Weak
IONSsell 1110b5-1
IONIS PHARMACEUTICALS INC
Patrick R. O'Neil
EVP CLO & General Counsel
$764k
10,148 shares
-14%

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.