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sellWeak cluster of 210b5-1 plan

Nello Mainolfi sold $1.8M of KYMR

Chief Executive Officer at Kymera Therapeutics, Inc.. 30,000 shares at an average of $60.99, traded Oct 29, 2025, filed Oct 29, 2025.

Warning score
23
Value
$1.8M
30,000 shares
Holdings after
660,482
-4% from before
From 52-week low
+185%
low $21.05, close $60.03
From 52-week high
-5%
high $62.89, as of Oct 29, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $1.8M at market
    +25
  • Share of holdings sold
    Sold 4.3% 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.

KYMROct 9, 2026 · close 112.40
Since filing Oct 29, 2025: +87.2%SPY +14.5% · excess +72.8%

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 0001193125-25-256673, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Oct 29, 2025MOption exercise
Common Stock10b5-1
+30,000$2.08$62k690,482Oct 29, 2025
Oct 29, 2025SOpen-market sale
Common Stock10b5-1
-1,862$59.72$111k688,620Oct 29, 2025
Oct 29, 2025SOpen-market sale
Common Stock10b5-1
-24,511$61.02$1.5M664,109Oct 29, 2025
Oct 29, 2025SOpen-market sale
Common Stock10b5-1
-3,627$61.46$223k660,482Oct 29, 2025
Oct 29, 2025MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-30,000$0.00$0405,559Oct 29, 2025

Related signals

Other insiders at Kymera Therapeutics, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
15Weak
KYMRsell10b5-1
Kymera Therapeutics, Inc.
Nello Mainolfi
Chief Executive Officer
$3.4M
30,000 shares
-4%
41Moderate
KYMRsell
Kymera Therapeutics, Inc.
Brian Adams
Chief Legal Officer
$744k
6,371 shares
-11%
20Weak
KYMRsell10b5-1
Kymera Therapeutics, Inc.
Bruce Booth
director
$7.4M
81,866 shares
-2%
23Weak
KYMRsell 210b5-1
Kymera Therapeutics, Inc.
Nello Mainolfi
Chief Executive Officer
$2.3M
30,000 shares
-4%
40Moderate
KYMRsell 510b5-1
Kymera Therapeutics, Inc.
Pamela Esposito
director
$2.3M
27,563 shares
-100%
55Moderate
KYMRsell 5
Kymera Therapeutics, Inc.
Bruce Booth
director
$22M
236,588 shares
-6%
50Moderate
KYMRbuy
Kymera Therapeutics, Inc.
Baker Bros. Advisors LP
director, owner
$172M
2,005,813 shares
+376%
32Weak
KYMRsell 510b5-1
Kymera Therapeutics, Inc.
Jeffrey W. Albers
director
$449k
5,000 shares
-100%
30Weak
KYMRsell 510b5-1
Kymera Therapeutics, Inc.
Jared Gollob
Chief Medical Officer
$4.4M
49,307 shares
-31%
35Weak
KYMRsell 510b5-1
Kymera Therapeutics, Inc.
Nello Mainolfi
Chief Executive Officer
$8.9M
100,000 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.

Nello Mainolfi sold $1.8M of KYMR | InsiderTell