Repligen Corporation (RGEN) delivered a return of 12.32% over the past year. Since RGEN does not currently pay dividends, the total return equals the price-only return.

A $10,000 investment in Repligen Corporation one year ago would be worth $11,232 today, representing a gain of $1,232.

Repligen Corporation (RGEN) does not currently pay dividends. Many growth-focused companies reinvest profits back into the business rather than distributing them as dividends. For RGEN, the total return equals the price-only return.

No, Repligen Corporation (RGEN) underperformed the S&P 500 by 12.67 percentage points over the past year. RGEN delivered a total return of 12.32%, compared to the S&P 500's 24.99%. This means a passive S&P 500 index fund outperformed RGEN by 12.67pp during this period.

Repligen Corporation (RGEN) experienced a maximum drawdown of -40.28% over the past year, declining from its peak on 2026-01-06 to its trough on 2026-05-15. The stock has not yet fully recovered to its prior peak. Maximum drawdown measures the worst peak-to-trough decline and is an important risk metric for investors.

Here are Repligen Corporation (RGEN)'s long-term returns with dividends reinvested. Over 10 years, the total return is 487.5% (19.4% CAGR) — $10,000 would have grown to $58,754. Over 20 years: 4598.2% total return (21.2% CAGR) — $10,000 → $469,818. Over 30 years: 12325.5% total return (17.4% CAGR) — $10,000 → $1.24M. Long-term investors benefit from compounding: dividends buy additional shares, which generate their own dividends, creating an exponential growth effect.

Repligen Corporation's best calendar year was 2007 with a total return of 133.9%. Its worst year was 1995 with a total return of -43.8%. This range shows the volatility investors should expect — the difference between the best and worst year is 177.7 percentage points.