What is the current annual operating margin of WST?

As of today, WST annual operating margin is 19.19%

What is 1-year change in WST annual operating margin?

WST annual operating margin is down -6.66% year-over-year

What is 3-year change in WST annual operating margin?

WST annual operating margin is down -27.48% over the past 3 years

How far is WST annual operating margin from its all-time high?

WST annual operating margin is currently -28.40% below its historical high of 26.80% set on December 31, 2021

How does WST annual operating margin rank versus sector peers?

WST annual operating margin is higher than 89.25% of companies in Healthcare sector

When is WST next annual earnings release?

As of today, the next annual earnings release for WST has not been scheduled

What is the current quarterly operating margin of WST?

As of today, WST quarterly operating margin is 21.63%

What is WST quarterly operating margin most recent change?

WST quarterly operating margin was down -1.10% on March 31, 2026

What is 1-year change in WST quarterly operating margin?

WST quarterly operating margin is up +17.62% year-over-year

How far is WST quarterly operating margin from its all-time high?

WST quarterly operating margin is currently -43.82% below its historical high of 38.50% set on December 31, 1998

How does WST quarterly operating margin rank versus sector peers?

WST quarterly operating margin is higher than 89.07% of companies in Healthcare sector

When is WST next earnings release?

The next earnings release for WST is on July 23, 2026

WST Operating Margin History & Chart Since 1980

Annual Operating Margin

19.19%1.37%-6.66%

December 31, 2025

Summary

Current Value: As of today, WST annual operating margin is 19.19%, down -6.66% on December 31, 2025
Historical Performance: WST annual operating margin is down -27.48% over the past 3 years, down -1.69% over the past 5 years
All-Time High Comparison: WST annual operating margin is currently -28.40% below its historical high of 26.80% set on December 31, 2021
3-Year Low Comparison: WST annual operating margin is at its 3-year low
Sector Comparison: WST annual operating margin is higher than 89.25% of companies in Healthcare sector

Operating Margin Chart

Performance

WST Performance
Metric	Date	Value	1Y	3Y	5Y	15Y
Annual Operating Margin	Dec 31, 25	19.19%	-6.7%	-27.5%	-1.7%	+99.9%
Quarterly Operating Margin	Mar 31, 26	21.63%	+17.6%	-7.6%	-19.5%	+109.4%
Price	May 8, 26	$325.92	+53.0%	-9.5%	-2.8%	+1281.3%
PE Ratio	May 8, 26	43.57	+30.2%	-11.8%	-27.5%	+72.6%
Annual Revenue	Dec 31, 25	$3.07B	+6.3%	+6.6%	+43.2%	+178.3%
Annual Operating Profit	Dec 31, 25	$589.80M	-0.8%	-22.8%	+40.8%	+456.4%
Annual Gross Margin	Dec 31, 25	35.91%	+3.6%	-9.0%	+0.4%	+24.9%
Annual Net Margin	Dec 31, 25	16.06%	-5.7%	-20.9%	-0.4%	+171.7%

Operating Margin Highs

WST Annual Operating Margin Highs Comparison
Period	High	Date	Current
3Y	26.46%	N/A	-27.5%
5Y	26.80%	Dec 31, 21	-28.4%
All	26.80%	Dec 31, 21	-28.4%

Operating Margin Lows

WST Annual Operating Margin Lows Comparison
Period	Low	Date	Current
3Y	19.19%	Dec 31, 25	at low
5Y	19.19%	Dec 31, 25	at low
All	6.56%	Dec 31, 90	+192.5%

Operating Margin History

Year	Value	Change
2025	19.19%	-6.7%
2024	20.56%	-14.7%
2023	24.09%	-9.0%
2022	26.46%	-1.3%
2021	26.80%	+37.3%
2020	19.52%	+21.1%
2019	16.12%	+8.7%
2018	14.83%	+3.3%
2017	14.35%	+0.5%
2016	14.28%	+58.8%
2015	8.99%	-29.7%
2014	12.79%	+11.7%
2013	11.45%	+6.2%
2012	10.78%	+10.9%
2011	9.72%	+1.3%
2010	9.60%	-4.4%
2009	10.04%	-15.3%
2008	11.85%	+6.9%
2007	11.08%	-4.2%
2006	11.57%	+10.6%
2005	10.46%	-11.4%
2004	11.80%	+28.4%
2003	9.19%	+10.5%

Year	Value	Change
2002	8.32%	-22.7%
2001	10.76%	+29.6%
2000	8.30%	-41.3%
1999	14.15%	-1.7%
1998	14.39%	+5.2%
1997	13.68%	+17.7%
1996	11.62%	-0.7%
1995	11.70%	-9.3%
1994	12.90%	+9.4%
1993	11.79%	+0.5%
1992	11.73%	+36.6%
1991	8.59%	+30.9%
1990	6.56%	-43.9%
1989	11.70%	+21.0%
1988	9.67%	-18.3%
1987	11.84%	-9.3%
1986	13.06%	+5.7%
1985	12.36%	+9.2%
1984	11.32%	-28.4%
1983	15.80%	+32.0%
1982	11.97%	-9.7%
1981	13.25%	+12.1%
1980	11.82%	-

FAQ

What is the current annual operating margin of WST?
As of today, WST annual operating margin is 19.19%
What is 1-year change in WST annual operating margin?
WST annual operating margin is down -6.66% year-over-year
What is 3-year change in WST annual operating margin?
WST annual operating margin is down -27.48% over the past 3 years
How far is WST annual operating margin from its all-time high?
WST annual operating margin is currently -28.40% below its historical high of 26.80% set on December 31, 2021
How does WST annual operating margin rank versus sector peers?
WST annual operating margin is higher than 89.25% of companies in Healthcare sector
When is WST next annual earnings release?
As of today, the next annual earnings release for WST has not been scheduled

Quarterly Operating Margin

21.63%0.24%-1.10%

March 31, 2026

Summary

Current Value: As of today, WST quarterly operating margin is 21.63%, down -1.10% on March 31, 2026
Historical Performance: WST quarterly operating margin is up +17.62% year-over-year, down -7.56% over the past 3 years
All-Time High Comparison: WST quarterly operating margin is currently -43.82% below its historical high of 38.50% set on December 31, 1998
3-Year Low Comparison: WST quarterly operating margin is +18.39% above its 3-year low of 18.27% reached on March 31, 2024
Sector Comparison: WST quarterly operating margin is higher than 89.07% of companies in Healthcare sector

Performance

WST Performance
Metric	Date	Value	3M	1Y	3Y	5Y
Quarterly Operating Margin	Mar 31, 26	21.63%	-1.1%	+17.6%	-7.6%	-19.5%
Annual Operating Margin	Dec 31, 25	19.19%	–	-6.7%	-27.5%	-1.7%
Price	May 8, 26	$325.92	+32.4%	+53.0%	-9.5%	-2.8%
PE Ratio	May 8, 26	43.57	+20.3%	+30.2%	-11.8%	-27.5%
Quarterly Revenue	Mar 31, 26	$844.60M	+4.8%	+21.0%	+18.0%	+25.9%
Quarterly Operating Profit	Mar 31, 26	$177.60M	+0.7%	+38.3%	+6.0%	-1.5%
Quarterly Gross Margin	Mar 31, 26	35.11%	-7.2%	+5.3%	-7.1%	-13.6%
Quarterly Net Margin	Mar 31, 26	16.43%	+0.2%	+27.8%	-16.0%	-27.1%

Quarterly Operating Margin Highs

WST Quarterly Operating Margin Highs Comparison
Period	High	Date	Current
1Y	21.87%	Dec 31, 25	-1.1%
3Y	25.57%	Sep 30, 23	-15.4%
5Y	29.02%	Jun 30, 22	-25.5%
All	38.50%	Dec 31, 98	-43.8%

Quarterly Operating Margin Lows

WST Quarterly Operating Margin Lows Comparison
Period	Low	Date	Current
1Y	18.39%	N/A	+17.6%
3Y	18.27%	Mar 31, 24	+18.4%
5Y	18.27%	Mar 31, 24	+18.4%
All	-269.79%	Dec 1, 84	+108.0%

Quarterly Operating Margin History

Month	Value	Change
Mar 2026	21.63%	-1.1%
Dec 2025	21.87%	+1.3%
Sep 2025	21.60%	+4.6%
Jun 2025	20.65%	+12.3%
Mar 2025	18.39%	-19.3%
Dec 2024	22.79%	+1.4%
Sep 2024	22.47%	+20.6%
Jun 2024	18.63%	+2.0%
Mar 2024	18.27%	-21.6%
Dec 2023	23.30%	-8.9%
Sep 2023	25.57%	+3.0%
Jun 2023	24.83%	+6.1%
Mar 2023	23.40%	+2.5%
Dec 2022	22.84%	-16.4%
Sep 2022	27.33%	-5.8%
Jun 2022	29.02%	+11.8%
Mar 2022	25.96%	+4.6%
Dec 2021	24.81%	-4.5%
Sep 2021	25.97%	-10.4%
Jun 2021	28.99%	+7.9%
Mar 2021	26.87%	+27.5%
Dec 2020	21.08%	+8.3%
Sep 2020	19.46%	-5.3%
Jun 2020	20.54%	+19.4%
Mar 2020	17.20%	+4.2%
Dec 2019	16.50%	+2.7%
Sep 2019	16.06%	-2.8%
Jun 2019	16.53%	+7.6%
Mar 2019	15.36%	-25.4%
Dec 2018	20.60%	+64.4%
Sep 2018	12.53%	+2.8%
Jun 2018	12.19%	+3.3%
Mar 2018	11.80%	-18.3%
Dec 2017	14.45%	+27.4%
Sep 2017	11.34%	-16.4%
Jun 2017	13.57%	-14.3%
Mar 2017	15.83%	+12.0%
Dec 2016	14.13%	+0.1%
Sep 2016	14.12%	-9.9%
Jun 2016	15.67%	+1.5%
Mar 2016	15.44%	+24.5%
Dec 2015	12.40%	+1,046.6%
Sep 2015	-1.31%	-112.5%
Jun 2015	10.44%	-24.3%
Mar 2015	13.80%	+11.0%
Dec 2014	12.43%	+0.3%
Sep 2014	12.39%	-16.0%
Jun 2014	14.75%	+27.9%
Mar 2014	11.53%	+11.5%
Dec 2013	10.34%	-8.2%
Sep 2013	11.26%	-4.0%
Jun 2013	11.73%	-6.3%
Mar 2013	12.52%	+32.9%
Dec 2012	9.42%	+0.4%
Sep 2012	9.38%	-15.9%
Jun 2012	11.15%	-16.9%
Mar 2012	13.41%	+37.7%
Dec 2011	9.74%	+2.4%
Sep 2011	9.51%	+1.7%
Jun 2011	9.35%	-9.5%
Mar 2011	10.33%	+38.8%
Dec 2010	7.44%	-15.6%
Sep 2010	8.81%	-21.7%
Jun 2010	11.25%	+2.4%
Mar 2010	10.99%	+0.7%
Dec 2009	10.91%	+27.3%
Sep 2009	8.57%	-22.6%
Jun 2009	11.07%	+22.6%
Mar 2009	9.03%	-21.0%
Dec 2008	11.43%	+47.1%
Sep 2008	7.77%	-42.6%
Jun 2008	13.53%	-3.6%
Mar 2008	14.04%	+41.5%
Dec 2007	9.92%	+7.9%
Sep 2007	9.19%	-30.2%
Jun 2007	13.16%	-14.4%

Month	Value	Change
Mar 2007	15.37%	+70.6%
Dec 2006	9.01%	-7.6%
Sep 2006	9.75%	-27.9%
Jun 2006	13.53%	+4.6%
Mar 2006	12.93%	+30.3%
Dec 2005	9.92%	+37.6%
Sep 2005	7.21%	-32.6%
Jun 2005	10.69%	-22.4%
Mar 2005	13.78%	+101.8%
Dec 2004	6.83%	-9.1%
Sep 2004	7.51%	-35.3%
Jun 2004	11.61%	+8.1%
Mar 2004	10.74%	+33.1%
Dec 2003	8.07%	+21.2%
Sep 2003	6.66%	-42.3%
Jun 2003	11.55%	+14.4%
Mar 2003	10.10%	+100.8%
Dec 2002	5.03%	-24.6%
Sep 2002	6.67%	-21.9%
Jun 2002	8.54%	-18.7%
Mar 2002	10.51%	+14.9%
Dec 2001	9.15%	+20.1%
Sep 2001	7.62%	-29.1%
Jun 2001	10.75%	+9.6%
Mar 2001	9.81%	+73.3%
Dec 2000	5.66%	-28.7%
Sep 2000	7.94%	-20.1%
Jun 2000	9.94%	+2.9%
Mar 2000	9.66%	-19.2%
Dec 1999	11.96%	-12.3%
Sep 1999	13.64%	-14.3%
Jun 1999	15.92%	+4.5%
Mar 1999	15.24%	-60.4%
Dec 1998	38.50%	+167.4%
Sep 1998	14.40%	-3.0%
Jun 1998	14.85%	+219.3%
Mar 1998	-12.45%	-179.7%
Dec 1997	15.62%	+29.1%
Sep 1997	12.10%	-13.4%
Jun 1997	13.97%	+9.0%
Mar 1997	12.82%	-7.0%
Dec 1996	13.79%	+33.5%
Sep 1996	10.33%	-10.9%
Jun 1996	11.60%	+8.3%
Mar 1996	10.71%	+3.8%
Dec 1995	10.32%	+28.8%
Sep 1995	8.01%	-36.7%
Jun 1995	12.66%	-21.2%
Mar 1995	16.07%	+44.8%
Dec 1994	11.10%	-1.0%
Sep 1994	11.21%	-20.5%
Jun 1994	14.10%	-8.3%
Mar 1994	15.38%	+20.9%
Dec 1993	12.72%	+15.7%
Sep 1993	10.99%	-13.7%
Jun 1993	12.74%	+20.3%
Mar 1993	10.59%	+14.1%
Dec 1992	9.28%	-4.5%
Sep 1992	9.72%	-29.2%
Jun 1992	13.73%	-1.5%
Mar 1992	13.94%	+145.3%
Dec 1991	-30.78%	-426.8%
Sep 1991	9.42%	+0.1%
Jun 1991	9.41%	-9.0%
Mar 1991	10.34%	+1,567.7%
Dec 1990	0.62%	-91.6%
Sep 1990	7.41%	+5.0%
Jun 1990	7.06%	-37.7%
Mar 1990	11.34%	+104.7%
Dec 1989	-242.03%	-0.0%
Dec 1988	-241.91%	-2.5%
Dec 1987	-235.94%	-0.3%
Dec 1986	-235.19%	+5.6%
Dec 1985	-249.27%	+7.6%
Dec 1984	-269.79%	-

FAQ

What is the current quarterly operating margin of WST?
As of today, WST quarterly operating margin is 21.63%
What is WST quarterly operating margin most recent change?
WST quarterly operating margin was down -1.10% on March 31, 2026
What is 1-year change in WST quarterly operating margin?
WST quarterly operating margin is up +17.62% year-over-year
How far is WST quarterly operating margin from its all-time high?
WST quarterly operating margin is currently -43.82% below its historical high of 38.50% set on December 31, 1998
How does WST quarterly operating margin rank versus sector peers?
WST quarterly operating margin is higher than 89.07% of companies in Healthcare sector
When is WST next earnings release?
The next earnings release for WST is on July 23, 2026

Operating Margin Formula

Operating Profit Margin = Operating Profit

Revenue × 100%

Data Sources & References

WST Official Website www.westpharma.com
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/105770/000010577026000010/0000105770-26-000010-index.htm
WST Profile on Yahoo Finance finance.yahoo.com/quote/WST
WST Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/wst