Repligen (RGEN)

Healthcare · Medical Instruments & Supplies
$174.86 -7.73% on the day Market cap $10.0B 52-week range $100.99 to $198.87 Prices as of Oct 7, 2026

What the price implies

A reverse DCF: instead of guessing a fair value, it asks what growth today's price already assumes. How it works.

Free cash flow growth the price needs
27% a year for 10 years

At a market value of $10.0B, Repligen's free cash flow of $94M (fiscal 2025) would need to grow about 27% a year for the stock to be worth today's price. That is slower than the company has grown its free cash flow over the last 9 years.

Assumes a 9% discount rate and 3% growth after year 10, on free cash flow (operating cash flow minus capital spending) from Repligen's SEC filings. Change any assumption, or model revenue and margins instead, in the Modeling tab, or try your own numbers in the reverse DCF calculator.

Implied by the price27.2% a year
Free cash flow, last 9 years45.6% a year
Revenue, same period24.3% a year
Price to free cash flow106.5x

Fundamental grade

D

Five factors scored 1 to 9 from RGEN's latest numbers, weighted into one grade. It describes the business, not whether the stock is a buy.

Valuation2
Profitability4
Growth2
Financial health8
Cash efficiency7

Key numbers

P/E (trailing)194.8x
P/E (forward)86.0x
Price / free cash flow106.5x
EV / EBITDA32.8x
Price / sales12.7x
Price / book4.56x
Revenue growth+11.9%
Operating margin8.2%
Net margin5.3%
Return on equity2.0%
Dividend yield—
Debt / equity0.40x

Results from SEC filings

Fiscal years, from Repligen's 10-K filings. The deep dive has 15+ years, quarters and every line.

Fiscal year20212022202320242025
Revenue$671M$802M$632M$634M$738M
Net income$128M$186M$36M-$26M$49M
Free cash flow$52M$87M$78M$150M$94M
EPS (diluted)$2.24$3.24$0.63-$0.46$0.86
Operating margin24.9%28.0%7.5%-5.5%7.5%

Where the revenue comes from

Revenue by products, fiscal 2025.

Product Revenue$738M100%
Royalty and other revenue$296,0000%

Superinvestors who own RGEN

From each investor's latest 13F filing (what a 13F shows). 7 of the investors we track hold it.

InvestorLast quarterValue% of portfolioQuarter
Lee Ainslie
Maverick Capital
Added $271M2.4%Q2 2026
Ron Baron
Baron Capital (BAMCO)
Added $102M0.15%Q2 2026
PRIMECAP Management
PRIMECAP Management Co
Added $44M0.03%Q2 2026
Joel Greenblatt
Gotham Asset Management
Added $19M0.04%Q2 2026
Stanley Druckenmiller
Duquesne Family Office
New position $11M0.20%Q2 2026
Wallace Weitz
Weitz Investment Management
Added $6M0.38%Q2 2026
Cliff Asness
AQR Capital Management
Added $1M0.0%Q2 2026

Insider buying

Open-market purchases by Repligen's executives and directors in the last 12 months, from SEC Form 4 filings. What insider buying tells you.

No open-market insider purchases of RGEN in the last 12 months. Most insider activity is selling and option exercises, which aren't shown here.

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In the full deep dive

DCF fair value per share
Yearly return (IRR) at today's price
Growth implied by revenue and margins
15+ years of statements and quarters

Questions

What growth does Repligen's stock price imply?

At a market value of $10.0B, Repligen would need its free cash flow to grow about 27% a year for 10 years (discounted at 9%, 3% growth after that) to be worth today's price. Over the last 9 years its free cash flow grew 46% a year.

Are Repligen insiders buying the stock?

No open-market insider purchases of RGEN in the last 12 months, according to SEC Form 4 filings.

Which superinvestors own Repligen?

7 of the superinvestors Investingly tracks hold RGEN in their latest 13F, including Lee Ainslie, Ron Baron, PRIMECAP Management.

Prices and ratios as of Oct 7, 2026; statements from SEC filings. Information only, not investment advice. Superinvestor holdings come from 13F filings, which are filed up to 45 days after each quarter ends.