Skip to content
sellWeak

Karen A Dawes sold $44k of RGEN

director at REPLIGEN CORP. 275 shares at an average of $161.00, traded Dec 17, 2025, filed Dec 18, 2025.

Warning score
21
Value
$44k
275 shares
Holdings after
91,821
-0% from before
From 52-week low
+44%
low $108.89, close $156.92
From 52-week high
-10%
high $174.24, as of Dec 17, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $44k at market
    +6
  • Share of holdings sold
    Sold 0.3% of holdings
    0
  • Cluster
    No other insider selling within 14 days
    0

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 +2.7%, 3m -25.4%, 6m -16.3%.

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.

RGENOct 12, 2026 · close 172.51
Since filing Dec 18, 2025: +9.4%SPY +16.3% · excess -6.9%

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 0001193125-25-324912, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 17, 2025SOpen-market sale
Common Stock
-275$161.00$44k91,821Dec 18, 2025

Related signals

Other insiders at REPLIGEN CORP and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
20Weak
RGENsell10b5-1
REPLIGEN CORP
Olivier Loeillot
Chief Executive Officer
$1.0M
5,535 shares
-12%
20Weak
RGENsell10b5-1
REPLIGEN CORP
Olivier Loeillot
Chief Executive Officer
$2.5M
12,946 shares
-23%
20Weak
RGENsell10b5-1
REPLIGEN CORP
Olivier Loeillot
Chief Executive Officer
$977k
5,426 shares
-10%
23Weak
RGENsell10b5-1
REPLIGEN CORP
Olivier Loeillot
Chief Executive Officer
$504k
3,035 shares
-6%
15Weak
RGENsell10b5-1
REPLIGEN CORP
Olivier Loeillot
Chief Executive Officer
$977k
5,426 shares
-9%
11Weak
RGENsell10b5-1
REPLIGEN CORP
Jason K Garland
CFO
$80k
530 shares
-3%
12Weak
RGENsell10b5-1
REPLIGEN CORP
Jason K Garland
CFO
$106k
733 shares
-4%
24Weak
RGENsell10b5-1
REPLIGEN CORP
Olivier Loeillot
Chief Executive Officer
$536k
3,832 shares
-7%
50Moderate
RGENsell 310b5-1
REPLIGEN CORP
Olivier Loeillot
Chief Executive Officer
$1.2M
7,041 shares
-16%
50Moderate
RGENsell 3
REPLIGEN CORP
James Bylund
Chief Operating Officer
$331k
2,191 shares
-9%

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.