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buyModerate cluster of 2

Orbimed Advisors LLC bought $15M of QTTB

director, owner at Q32 Bio Inc.. 1,875,000 shares at an average of $8.00, traded May 28, 2026, filed Jun 1, 2026.

Conviction score
57
Value
$15M
1,875,000 shares
Holdings after
625,000
+83% from before
From 52-week low
+658%
low $1.36, close $10.31
From 52-week high
-20%
high $12.85, as of May 28, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $15.0M at market
    +25
  • Relative to holdings
    Holdings up 83%
    +10
  • Price context
    20% below the 52-week high
    +4
  • Cluster
    2 insiders buying within 14 days
    +8
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Median 6-month excess return -26% over 4 past buys
    -5

What happened after comparable buys

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.

QTTBOct 9, 2026 · close 8.34
Since filing Jun 1, 2026: -28.5%SPY +3.1% · excess -31.6%

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 0000947871-26-000593, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 28, 2026POpen-market purchase
Common Stockindirect: See footnotes
+1,250,000$8.00$10M3,502,987Jun 1, 2026
May 28, 2026POpen-market purchase
Common Stockindirect: See footnotes
+625,000$8.00$5.0M625,000Jun 1, 2026

Related signals

Other insiders at Q32 Bio Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
45Moderate
QTTBsell 3
Q32 Bio Inc.
Lee Kalowski
CFO and President
$66k
3,972 shares
-3%
51Moderate
QTTBsell 3
Q32 Bio Inc.
Jodie Pope Morrison
CEO
$163k
9,845 shares
-3%
36Weak
QTTBsell 3
Q32 Bio Inc.
Shelia M. Violette
Chief Scientific Officer
$46k
2,798 shares
-2%
62Notable
QTTBbuy 2
Q32 Bio Inc.
Diyong Xu
director, owner
$15M
1,875,000 shares
+83%
42Moderate
QTTBsell 3
Q32 Bio Inc.
Lee Kalowski
CFO and President
$18k
3,995 shares
-10%
46Moderate
QTTBsell 3
Q32 Bio Inc.
Jodie Pope Morrison
CEO
$45k
9,896 shares
-10%
30Weak
QTTBsell 3
Q32 Bio Inc.
Shelia M. Violette
Chief Scientific Officer
$13k
2,815 shares
-5%
40Moderate
QTTBsell 2
Q32 Bio Inc.
Lee Kalowski
CFO and President
$31k
9,072 shares
-19%
47Moderate
QTTBsell 2
Q32 Bio Inc.
Jodie Pope Morrison
CEO
$78k
22,506 shares
-19%
37Weak
QTTBsell 3
Q32 Bio Inc.
Lee Kalowski
CFO and President
$7,636
4,240 shares
-8%

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.