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sellModerate cluster of 5

Mary Kay Fenton sold $60k of CGEM

Chief Financial Officer at Cullinan Oncology, Inc.. 4,398 shares at an average of $13.62, traded Feb 20, 2026, filed Feb 23, 2026.

Warning score
44
Value
$60k
4,398 shares
Holdings after
126,380
-3% from before
From 52-week low
+137%
low $5.75, close $13.65
From 52-week high
-2%
high $13.88, as of Feb 20, 2026

Score components

  • Role
    CFO
    +22
  • Trade size
    $60k at market
    +7
  • Share of holdings sold
    Sold 3.4% of holdings
    0
  • Cluster
    5 insiders selling within 14 days
    +15

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 +0.5%, 3m -1.1%, 6m +56.0%.

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.

CGEMOct 9, 2026 · close 15.53
Since filing Feb 23, 2026: +11.0%SPY +14.9% · excess -3.9%

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 0001193125-26-064261, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Feb 20, 2026SOpen-market sale
Common Stock
-4,398$13.62$60k126,380Feb 23, 2026

Related signals

Other insiders at Cullinan Oncology, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
0Weak
CGEMsell10b5-1
Cullinan Oncology, Inc.
Jennifer Michaelson
Chief Scientific Officer
$173k
8,000 shares
-5%
5Weak
CGEMsell10b5-1
Cullinan Oncology, Inc.
Jennifer Michaelson
Chief Scientific Officer
$608k
30,000 shares
-16%
0Weak
CGEMsell10b5-1
Cullinan Oncology, Inc.
Jennifer Michaelson
Chief Scientific Officer
$143k
8,000 shares
-5%
0Weak
CGEMsell10b5-1
Cullinan Oncology, Inc.
Jennifer Michaelson
Chief Scientific Officer
$117k
8,000 shares
-5%
6Weak
CGEMsell 510b5-1
Cullinan Oncology, Inc.
Jennifer Michaelson
Chief Scientific Officer
$125k
8,000 shares
-4%
15Weak
CGEMsell 510b5-1
Cullinan Oncology, Inc.
Jennifer Michaelson
Chief Scientific Officer
$25k
1,780 shares
-1%
52Moderate
CGEMsell 5
Cullinan Oncology, Inc.
Nadim Ahmed
President and CEO
$196k
13,515 shares
-3%
37Weak
CGEMsell 5
Cullinan Oncology, Inc.
Jacquelyn L Sumer
Chief Legal Officer
$52k
3,601 shares
-3%
38Weak
CGEMsell 5
Cullinan Oncology, Inc.
Jeffrey Alan Jones
Chief Medical Officer
$66k
4,582 shares
-3%
18Weak
CGEMsell 510b5-1
Cullinan Oncology, Inc.
Jennifer Michaelson
Chief Scientific Officer
$77k
5,353 shares
-3%

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.

Mary Kay Fenton sold $60k of CGEM | InsiderTell