West Pharmaceutical Services (WST)
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.
At a market value of $26.5B, West Pharmaceutical Services's free cash flow of $469M (fiscal 2025) would need to grow about 19% 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 West Pharmaceutical Services'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.
Fundamental grade
Five factors scored 1 to 9 from WST's latest numbers, weighted into one grade. It describes the business, not whether the stock is a buy.
Key numbers
Results from SEC filings
Fiscal years, from West Pharmaceutical Services's 10-K filings. The deep dive has 15+ years, quarters and every line.
| Fiscal year | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Revenue | $2.8B | $2.9B | $2.9B | $2.9B | $3.1B |
| Net income | $662M | $586M | $593M | $493M | $494M |
| Free cash flow | $331M | $439M | $414M | $276M | $469M |
| EPS (diluted) | $8.67 | $7.73 | $7.88 | $6.69 | $6.79 |
| Operating margin | 26.6% | 25.4% | 22.9% | 19.7% | 19.0% |
Where the revenue comes from
Revenue by segments, fiscal 2025.
Superinvestors who own WST
From each investor's latest 13F filing (what a 13F shows). 3 of the investors we track hold it.
| Investor | Last quarter | Value | % of portfolio | Quarter |
|---|---|---|---|---|
| Ron Baron Baron Capital (BAMCO) |
Trimmed | $59M | 0.09% | Q2 2026 |
| Cliff Asness AQR Capital Management |
Trimmed | $20M | 0.01% | Q2 2026 |
| Joel Greenblatt Gotham Asset Management |
Added | $4M | 0.01% | Q2 2026 |
Insider buying
Open-market purchases by West Pharmaceutical Services's executives and directors in the last 12 months, from SEC Form 4 filings. What insider buying tells you.
| Date | Insider | Shares | Price | Value |
|---|---|---|---|---|
| Jan 29, 2026 | Ro Khanna |
0 | $232.20 | — |
| Jan 29, 2026 | Ro Khanna |
0 | $232.20 | — |
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In the full deep dive
Questions
What growth does West Pharmaceutical Services's stock price imply?
At a market value of $26.5B, West Pharmaceutical Services would need its free cash flow to grow about 19% 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 28% a year.
Are West Pharmaceutical Services insiders buying the stock?
2 open-market insider purchases of WST in the last 12 months, from SEC Form 4 filings.
Which superinvestors own West Pharmaceutical Services?
3 of the superinvestors Investingly tracks hold WST in their latest 13F, including Ron Baron, Cliff Asness, Joel Greenblatt.
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.