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sellWeak10b5-1 plan

Olivier Loeillot sold $977k of RGEN

Chief Executive Officer at REPLIGEN CORP. 5,426 shares at an average of $180.00, traded Aug 20, 2026, filed Aug 21, 2026.

Warning score
15
Value
$977k
5,426 shares
Holdings after
54,246
-9% from before
From 52-week low
+75%
low $102.87, close $180.29
From 52-week high
0%
high $180.29, as of Aug 20, 2026

Score components

  • Role
    CEO
    +25
  • Trade size
    $977k at market
    +25
  • Share of holdings sold
    Sold 9.1% of holdings
    0
  • Cluster
    No other insider selling within 14 days
    0
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15
  • 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 12, 2026 · close 172.51
Since filing Aug 21, 2026: -4.8%SPY +1.9% · excess -6.6%

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 0001628280-26-058417, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 20, 2026MOption exercise
Common Stock10b5-1
+5,426$141.79$769k59,672Aug 21, 2026
Aug 20, 2026SOpen-market sale
Common Stock10b5-1
-5,426$180.00$977k54,246Aug 21, 2026
Aug 20, 2026MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-5,426$0.00$010,852Aug 21, 2026

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%
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%
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%

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 $977k of RGEN | InsiderTell