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sellWeak10b5-1 plan

Olivier Loeillot sold $504k of RGEN

Chief Executive Officer at REPLIGEN CORP. 3,035 shares at an average of $165.90, traded Sep 4, 2026, filed Sep 8, 2026.

Warning score
23
Value
$504k
3,035 shares
Holdings after
48,369
-6% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    CEO
    +25
  • Trade size
    $504k at market
    +18
  • Share of holdings sold
    Sold 5.9% of holdings
    0
  • Cluster
    No other insider selling within 14 days
    0
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

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.

RGENOct 9, 2026 · close 173.88
Since filing Sep 8, 2026: +3.2%SPY +1.9% · excess +1.3%

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 0001628280-26-060911, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 3, 2026FTax withholding
Common Stock10b5-1
-2,842$169.61$482k51,40434 d ago
Sep 4, 2026SOpen-market sale
Common Stock10b5-1
-3,035$165.90$504k48,36934 d ago

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%
21Weak
RGENsell
REPLIGEN CORP
Karen A Dawes
director
$44k
275 shares
-0%
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%
45Moderate
RGENsell 3
REPLIGEN CORP
Anthony Hunt
director
$3.1M
20,000 shares
-20%
25Weak
RGENsell 310b5-1
REPLIGEN CORP
Anthony Hunt
director
$3.9M
25,000 shares
-20%
30Weak
RGENsell
REPLIGEN CORP
Anthony Hunt
director
$3.5M
29,111 shares
-22%
53Moderate
RGENbuy
REPLIGEN CORP
Martin D Madaus
director
$202k
1,800 shares
-

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.

Olivier Loeillot sold $504k of RGEN | InsiderTell