Repligen Corporation (RGEN) Shares Outstanding

Shares Outstanding

56.44M7.51M+15.35%

July 31, 2026

Summary

Current Value: As of today, RGEN has 56.44M outstanding shares, up +15.35% on July 31, 2026
Historical Performance: RGEN shares outstanding is up +0.27% year-over-year, up +1.18% over the past 3 years
All-Time High Comparison: RGEN shares outstanding is currently at its all-time high
3-Year Low Comparison: RGEN shares outstanding is +15.35% above its 3-year low of 48.92M reached on July 29, 2026

Chart

beforeafter

Performance

RGEN Performance
Metric	Date	Value	1Y	3Y	5Y
Shares Outstanding	Jul 31, 26	56.44M	+0.3%	+1.2%	+2.1%
Price	Oct 7, 26	$168.91	+15.8%	+10.0%	-37.9%
Market Cap	Oct 7, 26	$10B	+16.1%	+11.3%	-36.6%
PE Ratio	Oct 7, 26	230.22	-95.9%	+164.9%	+77.5%
TTM Revenue	Jun 30, 26	$785.10M	+16.5%	+10.3%	+54.4%
TTM EPS	Jun 30, 26	$0.73	+393.8%	-66.3%	-58.9%
	Oct 7, 26	$9.41B	+15.4%	+12.7%	-36.1%
TTM Net Income	Jun 30, 26	$41.54M	+400.4%	-66.6%	-58.4%
TTM Dividend	Oct 7, 26	-	–	–	–

Highs

RGEN Shares Outstanding Highs Comparison
Period	High	Date	Current
1Y	56.44M	Jul 31, 26	at high
3Y	56.44M	Jul 31, 26	at high
5Y	56.44M	Jul 31, 26	at high
All	56.44M	Jul 31, 26	at high

Lows

RGEN Shares Outstanding Lows Comparison
Period	Low	Date	Current
1Y	48.92M	Jul 29, 26	+15.3%
3Y	48.92M	Jul 29, 26	+15.3%
5Y	48.92M	Jul 29, 26	+15.3%
All	2.59M	Jun 29, 84	+2078.1%

History

Month	Value	Change
Jul 2026	56.44M	+0.2%
Dec 2025	56.33M	+0.4%
Dec 2024	56.09M	+0.6%
Dec 2023	55.77M	+0.4%
Dec 2022	55.56M	+0.4%
Dec 2021	55.32M	+1.0%
Dec 2020	54.76M	+5.2%
Dec 2019	52.08M	+18.6%
Dec 2018	43.92M	+0.8%
Dec 2017	43.59M	+28.8%
Dec 2016	33.84M	+2.7%
Dec 2015	32.95M	+0.5%
Dec 2014	32.77M	+2.7%
Dec 2013	31.93M	+2.3%
Dec 2012	31.20M	+1.2%
Mar 2011	30.81M	+0.1%
Dec 2010	30.79M	+0.1%
Dec 2009	30.76M	+0.2%
Dec 2008	30.69M	-1.2%
Dec 2007	31.06M	+2.2%
Dec 2006	30.39M	+0.9%
Dec 2005	30.11M	+0.1%

Month	Value	Change
Dec 2004	30.07M	+0.5%
Dec 2003	29.94M	+9.5%
Dec 2002	27.34M	+2.6%
Dec 2001	26.64M	+0.2%
Dec 2000	26.59M	+19.1%
Dec 1999	22.32M	+24.0%
Dec 1998	18.00M	-0.0%
Dec 1997	18.00M	+13.2%
Dec 1996	15.90M	+3.5%
Dec 1995	15.36M	+0.0%
Dec 1994	15.36M	+23.6%
Dec 1993	12.42M	+0.5%
Dec 1992	12.36M	+5.5%
Dec 1991	11.72M	+26.9%
Dec 1990	9.24M	+25.6%
Dec 1989	7.36M	+0.4%
Dec 1988	7.33M	+0.5%
Dec 1987	7.30M	+24.5%
Dec 1986	5.86M	+95.6%
Dec 1985	3.00M	+15.7%
Dec 1984	2.59M	-

FAQ

What is the current shares outstanding of RGEN?: As of today, RGEN shares outstanding is 56.44M
What is 1-year change in RGEN shares outstanding?: RGEN shares outstanding is up +0.27% year-over-year
What is 3-year change in RGEN shares outstanding?: RGEN shares outstanding is up +1.18% over the past 3 years
How far is RGEN shares outstanding from its all-time high?: RGEN shares outstanding is currently at its all-time high

Data Sources & References

RGEN Official Website www.repligen.com
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/730272/000119312526076528/0001193125-26-076528-index.htm
RGEN Profile on Yahoo Finance finance.yahoo.com/quote/RGEN
RGEN Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/rgen