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sellWeak cluster of 710b5-1 plan

Adam Lee Soroca sold $1.1M of MGNI

CHIEF PRODUCT OFFICER at MAGNITE, INC.. 42,584 shares at an average of $25.00, traded Jul 3, 2025, filed Jul 8, 2025.

Warning score
25
Value
$1.1M
42,584 shares
Holdings after
366,672
-10% from before
From 52-week low
+173%
low $9.00, close $24.53
From 52-week high
-1%
high $24.67, as of Jul 3, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $1.1M at market
    +25
  • Share of holdings sold
    Sold 10% of holdings
    +5
  • Cluster
    7 insiders selling within 14 days
    +15
  • 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.

This signal so far: 1m -7.6%, 3m -18.8%, 6m -28.3%.

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.

MGNIOct 9, 2026 · close 25.40
Since filing Jul 8, 2025: +7.9%SPY +27.2% · excess -19.3%

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 0001415889-25-019534, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jul 3, 2025MOption exercise
Common Stock10b5-1
+2$1.97$4400,929Jul 8, 2025
Jul 3, 2025MOption exercise
Common Stock10b5-1
+8,327$4.92$41k409,256Jul 8, 2025
Jul 3, 2025SOpen-market sale
Common Stock10b5-1
-42,584$25.00$1.1M366,672Jul 8, 2025
Jul 3, 2025MOption exercise
Employee Stock Option (Right to Buy)derivative10b5-1
-2$0.00$00Jul 8, 2025
Jul 3, 2025MOption exercise
Employee Stock Option (Right to Buy)derivative10b5-1
-8,327$0.00$0121,643Jul 8, 2025

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
22Weak
MGNIsell 610b5-1
MAGNITE, INC.
Paul Caine
director
$199k
7,500 shares
-5%
45Moderate
MGNIsell 610b5-1
MAGNITE, INC.
Douglas S Knopper
director
$981k
37,337 shares
-42%
15Weak
MGNIsell 610b5-1
MAGNITE, INC.
David Buonasera
CHIEF TECHNOLOGY OFFICER
$28k
1,165 shares
-0%
33Weak
MGNIsell 6
MAGNITE, INC.
Robert F Spillane
director
$246k
10,363 shares
-15%
20Weak
MGNIsell 610b5-1
MAGNITE, INC.
Paul Caine
director
$118k
5,000 shares
-3%
25Weak
MGNIsell 610b5-1
MAGNITE, INC.
Katie Seitz Evans
See Remarks
$336k
13,997 shares
-3%
39Weak
MGNIsell 610b5-1
MAGNITE, INC.
Aaron Saltz
CHIEF LEGAL OFFICER
$936k
40,000 shares
-15%
20Weak
MGNIsell 610b5-1
MAGNITE, INC.
Katie Seitz Evans
See Remarks
$1.0M
43,385 shares
-9%
21Weak
MGNIsell 510b5-1
MAGNITE, INC.
David Buonasera
CHIEF TECHNOLOGY OFFICER
$152k
6,414 shares
-3%
23Weak
MGNIsell 310b5-1
MAGNITE, INC.
Sean Patrick Buckley
See Remarks
$270k
11,030 shares
-4%

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.

Adam Lee Soroca sold $1.1M of MGNI | InsiderTell