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Repligen Corporation (RGEN) Total Return Calculator with Dividends Reinvested

Repligen Corporation

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The total return for Repligen Corporation (RGEN) stock is -3.56% over the past 12 months. So far it's down 23.48% this year. The 5-year total return is -32.10%, meaning $10,000 invested in RGEN stock 5 years ago would be worth $6,790 today. Total return includes price appreciation plus reinvesting any dividends paid out.

If you invested $10,000 in RGEN 1 year ago, it would be worth $9,644 today — you'd have lost $356.

With Dividends Reinvested$9,644-3.56%

Price Only (No DRIP)$9,644-3.56%

Period2025-05-06 → 2026-05-06

Price

Total Return (DRIP)

S&P 500

If You Invested $10,000 in RGEN

1Y$9,644-$356 (-3.6%)-3.6% CAGR

3Y$8,031-$1,969 (-19.7%)-7.0% CAGR

5Y$6,790-$3,210 (-32.1%)-7.5% CAGR

10Y$47,909+$37,909 (+379.1%)17.0% CAGR

15Y$312,058+$302,058 (+3020.6%)25.8% CAGR

20Y$399,238+$389,238 (+3892.4%)20.2% CAGR

30Y$958,172+$948,172 (+9481.7%)16.4% CAGR

Repligen Corporation did not pay dividends during this period. Total return = price return.

Loading RGEN total return...

As of 2026-05-06

Returns at a Glance

Period	Total Return	CAGR	Price Only	Div. Contrib.	$10K →
YTD	-23.48%	—	-23.48%	—	$7,652
1Y	-3.56%	-3.56%	-3.56%	—	$9,644
3Y	-19.69%	-7.05%	-19.69%	—	$8,031
5Y	-32.10%	-7.45%	-32.10%	—	$6,790
10Y	+379.09%	16.96%	+379.09%	—	$47,909
15Y	+3020.58%	25.78%	+3020.58%	—	$312,058
20Y	+3892.38%	20.24%	+3892.38%	—	$399,238
30Y	+9481.72%	16.43%	+9481.72%	—	$958,172

Risk & Highlights

Best Year+133.93%2007

Worst Year-43.75%1995

Max Drawdown-36.07%2026-01-06 → 2026-03-27

Annual Returns

Year	Total Return	Price Return	Div.	S&P 500	vs S&P
2026YTD	-21.67%	-21.67%	—	+0.41%	-22.1pp
2025	+14.55%	+14.55%	—	+16.64%	-2.1pp
2024	-19.72%	-19.72%	—	+24.00%	-43.7pp
2023	+10.99%	+10.99%	—	+24.81%	-13.8pp
2022	-34.37%	-34.37%	—	-19.95%	-14.4pp

RGEN underperformed the S&P 500 by 34.88pp over the past year (-3.56% vs +31.32%).

Loading summary...

RGEN Peers' Total Return

Accurate peer set · 10 comparable names

Name	Mkt Cap	30D Rtn	YTD Total Rtn	1Y Total Rtn	Div Contrib	3Y Total Rtn	5Y Total Rtn	10Y Total Rtn
RGENRepligen Corporation	$7.1B	+7.5%	-23.5%	-3.6%	—	-19.7%	-32.1%	+379.1%
FTREFortrea Holdings Inc.	$1.5B	+73.6%	-7.0%	+183.8%	—	-51.1%	-51.1%	-51.1%
NTRANatera, Inc.	$29.6B	+5.0%	-6.0%	+38.3%	—	+305.1%	+123.3%	+2147.5%
AZTAAzenta, Inc.	$843M	-18.6%	-45.0%	-27.7%	—	-59.5%	-80.3%	+121.7%
BRKRBruker Corporation	$6.4B	+15.1%	-12.0%	+7.7%	+0.5pp	-44.4%	-36.6%	+59.6%
NVCRNovoCure Limited	$1.9B	+56.4%	+25.7%	+1.0%	—	-76.2%	-91.5%	+31.0%
ACADACADIA Pharmaceuticals Inc.	$3.6B	-3.8%	-17.9%	+47.7%	—	-0.3%	+2.5%	-22.3%
CRLCharles River Laboratories International, Inc.	$9.0B	+8.0%	-10.2%	+57.5%	—	-4.3%	-46.0%	+124.7%
ICLRICON Public Limited Company	$9.5B	+13.2%	-34.2%	-8.1%	—	-34.6%	-44.4%	+93.0%
RVTYRevvity, Inc.	$11.1B	+12.2%	+1.1%	+9.9%	+0.3pp	-21.9%	-26.9%	+87.9%
TECHBio-Techne Corporation	$7.4B	-11.9%	-20.4%	+0.0%	+0.7pp	-41.2%	-52.3%	+100.6%

Compare:RGEN vs FTRE RGEN vs NTRA RGEN vs AZTA RGEN vs FTRE vs NTRA

About RGEN Dividend Returns

Repligen Corporation (RGEN) does not currently pay dividends. Many growth-focused companies reinvest profits back into the business rather than distributing them as dividends.

How We Calculate Total Return

Our total return calculator simulates dividend reinvestment (DRIP) by assuming each dividend payment is used to purchase additional shares at the closing price on the ex-dividend date. This methodology provides an accurate representation of how a dividend reinvestment plan would perform.

Frequently Asked Questions

Q1What is the total return of RGEN over the past year?

Repligen Corporation (RGEN) delivered a return of -3.56% over the past year. Since RGEN does not currently pay dividends, the total return equals the price-only return.

Q2How much would $10,000 invested in RGEN be worth today?

A $10,000 investment in Repligen Corporation one year ago would be worth $9,644 today, representing a loss of $356.

Q3Does RGEN pay dividends?

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.

Q4Did RGEN beat the S&P 500?

No, Repligen Corporation (RGEN) underperformed the S&P 500 by 34.88 percentage points over the past year. RGEN delivered a total return of -3.56%, compared to the S&P 500's 31.32%. This means a passive S&P 500 index fund outperformed RGEN by 34.88pp during this period.

Q5What is RGEN's worst drawdown?

Repligen Corporation (RGEN) experienced a maximum drawdown of -36.07% over the past year, declining from its peak on 2026-01-06 to its trough on 2026-03-27. 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.

Q6What is RGEN's long-term total return over 10, 20, or 30 years?

Here are Repligen Corporation (RGEN)'s long-term returns with dividends reinvested. Over 10 years, the total return is 379.1% (17.0% CAGR) — $10,000 would have grown to $47,909. Over 20 years: 3892.4% total return (20.2% CAGR) — $10,000 → $399,238. Over 30 years: 9481.7% total return (16.4% CAGR) — $10,000 → $958,172. Long-term investors benefit from compounding: dividends buy additional shares, which generate their own dividends, creating an exponential growth effect.

Q7What was RGEN's best and worst year?

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.