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buyWeak

Lynx1 Capital Management LP bought $79k of KRRO

owner at Korro Bio, Inc.. 6,684 shares at an average of $11.79, traded Aug 6, 2026, filed Aug 13, 2026.

Conviction score
24
Value
$79k
6,684 shares
Holdings after
1,544,980
+0% from before
From 52-week low
+130%
low $5.28, close $12.12
From 52-week high
-76%
high $51.36, as of Aug 6, 2026

Score components

  • Role
    10% owner
    +12
  • Trade size
    $79k at market
    +9
  • Relative to holdings
    Under 1% of holdings (0.4%)
    -5
  • Price context
    76% below the 52-week high
    +8
  • Cluster
    No other insider buying within 14 days
    0
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Median 6-month excess return +1% over 12 past buys
    +5
  • Outside holder
    A 10% owner who is not an officer or director
    -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.

KRROOct 9, 2026 · close 10.16
Since filing Aug 13, 2026: -23.6%SPY +0.3% · excess -23.8%

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 0000902664-26-003434, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 6, 2026POpen-market purchase
Common stock, $0.001 par value per shareindirect: See footnote
+5,222$11.40$60k1,543,518Aug 13, 2026
Aug 10, 2026POpen-market purchase
Common stock, $0.001 par value per shareindirect: See footnote
+1,462$13.19$19k1,544,980Aug 13, 2026

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
24Weak
KRROsell 210b5-1
Korro Bio, Inc.
Jean Francois Formela
director
$686k
48,690 shares
-7%
3Weak
KRROsell 210b5-1
Korro Bio, Inc.
Oliver Dolan
Senior Vice President, Finance
$69
5 shares
-0%
23Weak
KRROsell 210b5-1
Korro Bio, Inc.
Oliver Dolan
Senior Vice President, Finance
$99k
7,353 shares
-31%
3Weak
KRROsell 210b5-1
Korro Bio, Inc.
Jean Francois Formela
director
$4,188
300 shares
-0%
11Weak
KRROsell10b5-1
Korro Bio, Inc.
Jean Francois Formela
director
$399k
28,468 shares
-4%
8Weak
KRROsell 210b5-1
Korro Bio, Inc.
Jean Francois Formela
director
$30k
2,143 shares
-0%
41Moderate
KRROsell 2
Korro Bio, Inc.
Ram Aiyar
President and CEO
$63k
5,802 shares
-8%
25Weak
KRROsell10b5-1
Korro Bio, Inc.
Jean Francois Formela
director
$1.5M
110,023 shares
-14%
40Moderate
KRROsell 510b5-1
Korro Bio, Inc.
Jean Francois Formela
director
$2.5M
171,405 shares
-18%
43Moderate
KRROsell 5
Korro Bio, Inc.
Jeffrey Cerio
General Counsel
$72k
6,609 shares
-16%

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.

Lynx1 Capital Management LP bought $79k of KRRO | InsiderTell