RGEN SEC Form 4 filings
Repligen Corp Latest Insider Trading Activity
Our insider trading activity tracker for Repligen Corp shows 13 total open-market insider transactions for RGEN over the past 1,262 days. The most recent displayed transaction was on October 5, 2026, when Loeillot Olivier (Repligen Corp Chief Executive Officer) reported a sale of 1,333 shares at $178.75 per share. This page shows up to the 10 most recent SEC Form 4 filing records on a 6-hour delay. Sign up for real-time updates and access to 20 years of historic insider trading data.
Insider Trading For RGEN Charted on Daily Candles. Scroll left or zoom out to load earlier candles (up to 2 years).
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| Ticker | Filing Date | Transaction Date | Company | Insider | Title | Transaction | Trade Count | Shares | Avg. Price | Total Value | Position Size Change | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10b5-1: Scheduled Form 4 Transaction RGEN | 2026-10-06 | 2026-10-05 | Repligen Corp | Loeillot Olivier | Chief Executive Officer | Sell | 1 | 1,333 | $178.75 | $238,273.75 | 2.83% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction RGEN | 2026-10-06 | 2026-10-05 | Repligen Corp | Loeillot Olivier | Chief Executive Officer | Sell | 1 | 4,202 | $190.00 | $798,380.00 | 8.41% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction RGEN | 2026-09-08 | 2026-09-04 | Repligen Corp | Loeillot Olivier | Chief Executive Officer | Sell | 1 | 3,035 | $165.90 | $503,506.50 | 5.90% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction RGEN | 2026-06-26 | 2026-06-25 | Repligen Corp | Garland Jason K | CFO | Sell | 1 | 733 | $145.00 | $106,285.00 | 3.65% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction RGEN | 2026-04-22 | 2026-04-21 | Repligen Corp | Loeillot Olivier | Chief Executive Officer | Sell | 1 | 3,832 | $140.00 | $536,480.00 | 6.60% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. RGEN | 2025-03-18 | 2025-03-17 | Repligen Corp | Pax Margaret | Director | Buy | 1 | 250 | $150.69 | $37,672.50 | 23.97% | View Filing |
| Explained M/S: sale activity tied to share conversions or derivative-related share movements. RGEN | 2024-11-22 | 2024-11-21 | Repligen Corp | Hunt Anthony | Director | Sell | 1 | 24,246 | $139.67 | $3,386,438.82 | 14.78% | View Filing |
| Explained M/S: sale activity tied to share conversions or derivative-related share movements. RGEN | 2024-08-05 | 2024-08-02 | Repligen Corp | Kuriyel Ralf | Senior VP, R&D | Sell | 2 | 7,148 | $159.35 | $1,139,016.03 | 22.53% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. RGEN | 2024-06-14 | 2024-06-14 | Repligen Corp | Barthelemy Nicolas | Director | Buy | 1 | 1,200 | $125.45 | $150,540.00 | 25.71% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. RGEN | 2023-05-08 | 2023-05-08 | Repligen Corp | Madaus Martin D | Director | Buy | 3 | 1,500 | $158.84 | $238,260.00 | 45.00% | View Filing |
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Alerts are based on public SEC filings and are provided for informational purposes only; they do not constitute financial advice.