Skip to content
sellWeak cluster of 4

Jennifer Michaelson sold $32k of CGEM

Chief Scientific Officer at Cullinan Therapeutics, Inc.. 3,756 shares at an average of $8.53, traded Feb 25, 2025, filed Feb 27, 2025.

Warning score
35
Value
$32k
3,756 shares
Holdings after
142,004
-3% from before
From 52-week low
0%
low $8.56, close $8.56
From 52-week high
-53%
high $18.15, as of Feb 25, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $32k at market
    +5
  • Share of holdings sold
    Sold 2.6% of holdings
    0
  • Cluster
    4 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.

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 27, 2025: +80.4%SPY +35.7% · excess +44.7%

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 0000950170-25-029200, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Feb 25, 2025SOpen-market sale
Common Stock
-3,756$8.53$32k142,004Feb 27, 2025

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
0Weak
CGEMsell10b5-1
Cullinan Therapeutics, Inc.
Jennifer Michaelson
Chief Scientific Officer
$173k
8,000 shares
-5%
6Weak
CGEMsell 510b5-1
Cullinan Therapeutics, Inc.
Jennifer Michaelson
Chief Scientific Officer
$125k
8,000 shares
-4%
15Weak
CGEMsell 510b5-1
Cullinan Therapeutics, Inc.
Jennifer Michaelson
Chief Scientific Officer
$25k
1,780 shares
-1%
52Moderate
CGEMsell 5
Cullinan Therapeutics, Inc.
Nadim Ahmed
President and CEO
$196k
13,515 shares
-3%
37Weak
CGEMsell 5
Cullinan Therapeutics, Inc.
Jacquelyn L Sumer
Chief Legal Officer
$52k
3,601 shares
-3%
38Weak
CGEMsell 5
Cullinan Therapeutics, Inc.
Jeffrey Alan Jones
Chief Medical Officer
$66k
4,582 shares
-3%
18Weak
CGEMsell 510b5-1
Cullinan Therapeutics, Inc.
Jennifer Michaelson
Chief Scientific Officer
$77k
5,353 shares
-3%
52Moderate
CGEMsell 5
Cullinan Therapeutics, Inc.
Nadim Ahmed
President and CEO
$223k
16,381 shares
-4%
37Weak
CGEMsell 5
Cullinan Therapeutics, Inc.
Jacquelyn L Sumer
Chief Legal Officer
$51k
3,742 shares
-3%
6Weak
CGEMsell 510b5-1
Cullinan Therapeutics, Inc.
Jennifer Michaelson
Chief Scientific Officer
$165k
11,742 shares
-6%

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.

Jennifer Michaelson sold $32k of CGEM | InsiderTell