How much would $1,000 invested in RGEN be worth today?

$1,000 invested in RGEN on October 17, 2016 would be worth $6,085 on October 16, 2026, with dividends reinvested — 19.8% a year compounded (CAGR).

How far back does the RGEN calculator go?

RGEN data begins March 26, 1990, with a close every session. Pick any start and end date in that span — 36 years, 7 months of history.

Does this include dividends?

Yes. The default "dividends reinvested" view uses split- and dividend-adjusted closing prices — a standard total-return approximation that excludes taxes and fees. A price-only view (split-adjusted, no dividends) is also available.

If You Invested $1,000 in Repligen (RGEN): What It Would Be Worth Today

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RGEN

$175.42-4.75%

as of close, Oct 16, 2026

☾ AH $175.42 -4.75%

Repligen CorporationStock · HealthcareNasdaq Composite 0.02%Russell 1000 0.01%Russell 3000 0.01%US Stock Market 0.01%

PeersMRNALLYMDTUNHJNJTMO

Your investment#

How much

All at once, on the start date

Pick start & end dates10 years

Start

Key dates

Start at a well-known dateRecentMarket topsMarket bottomsEvents

Bought at that day's close

End

Key dates

End at a well-known dateMarket topsMarket bottomsEvents

Latest close, Oct 16, 2026

Or drag the slider to set start and end dates

1990 to today, log scale

2008 crisisCovidDot-com bust

19952000200520102020Oct 2016Today

Options

Result#

$1,000Oct 17, 2016$6,085Oct 16, 20266.1×your money

$1,000 invested in RGEN on October 17, 2016 was worth $6,085 on October 16, 2026, with dividends reinvested.

That’s 19.8% a year compounded (CAGR) over 10 years: 6.1 times your money.

Over the same dates the same $1,000 would be worth $4,208 in the S&P 500 and $6,511 in the Nasdaq-100: RGEN beat the S&P 500 but trailed the Nasdaq-100.

Price only$6,085if dividends were spent

Biggest fall−68.3%Sep 23, 2021 to May 15, 2026

At a flat 5% a year$1,629a savings account's rate

Gain$5,085on $1,000 put in

How this period ranks#

Better than 60% of all 320 periods of 10 years since 1990.

Your dates

−80%0%190%

Worst: −19.1% a year, Sep 1991 to Sep 2001Best: 56.6% a year, Sep 2011 to Sep 2021

One scale for every length, so longer periods bunch up. Point at a bar.

Growth of $1,000 in RGEN, October 17, 2016 to October 16, 2026#

Your $1,000$Your buySame plan in the S&P 500The highA lowLog scale: equal steps are equal percentage moves

Highest value$11,246 · Sep 2021$3,568 · May 2026$1,072 · Feb 2018$1,674 · Dec 2018$5,753 · May 2021$

$1,000$2,000$10k$6,085

20182020202220242026

How far RGEN was below its previous high. The biggest fall: −68.3% from Sep 23, 2021 to May 15, 2026, not back to the high by the end date.

−68.3% from its high−32.9% from its high−29.9% from its high−26.7% from its high

high−68%

Your one buy. $1,000 on October 17, 2016, worth $6,085 on October 16, 2026. Pick Monthly or Yearly to see a plan's buys.

6.1×paid

What $1,000 would be worth on October 16, 2026, by start date#

Each point is the same amount invested that day and held to October 16, 2026, dividends reinvested. Above the line it made money.

Your start

$1,000$3,000$10k$30k$100k$300k

1995200020052010201520202025

$1,000 invested in RGEN, by year#

Started on each year's first close and held to Oct 16, 2026, dividends reinvested.

Started	Worth Oct 16, 2026	Multiple	A year (CAGR)	Same in the Nasdaq-100
2017	$5,631	5.6×	19.3%	$6,344
2018	$4,733	4.7×	19.4%	$4,742
2019	$3,394	3.4×	17.0%	$4,812
2020	$1,871	1.9×	9.7%	$3,420
2021	$920	0.92×	−1.4%	$2,373
2022	$680	0.68×	−7.7%	$1,818
2023	$1,083	1.1×	2.1%	$2,741
2024	$978	0.98×	−0.8%	$1,789
2025	$1,226	1.2×	12.1%	$1,403
2026	$1,067	1.1×	—	$1,162

Methodology#

A buy is made at the start date's close, or the next session's when the market was closed that day, and valued at the end date's close; a monthly or yearly plan buys on the same day of each month or year. "Dividends reinvested" uses split- and dividend-adjusted closes (a standard total-return approximation; taxes and fees excluded). "Price-only" uses split-adjusted closes. RGEN data begins March 26, 1990; values as of October 16, 2026 and refresh daily. The ranking compares month-end to month-end periods. Past performance does not predict future returns; not investment advice.

See the live RGEN chart and fundamentals on the RGEN quote page or the S&P 500 return calculator.

FAQ#

How much would $1,000 invested in RGEN be worth today?: $1,000 invested in RGEN on October 17, 2016 would be worth $6,085 on October 16, 2026, with dividends reinvested — 19.8% a year compounded (CAGR).
How far back does the RGEN calculator go?: RGEN data begins March 26, 1990, with a close every session. Pick any start and end date in that span — 36 years, 7 months of history.
Does this include dividends?: Yes. The default "dividends reinvested" view uses split- and dividend-adjusted closing prices — a standard total-return approximation that excludes taxes and fees. A price-only view (split-adjusted, no dividends) is also available.

RGEN return calculator