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Compare · ATR vs WST

ATR vs WST

Side-by-side comparison of AptarGroup Inc. (ATR) and West Pharmaceutical Services Inc. (WST): market cap, price performance, sector, and recent activity on the wire.

Summary

  • ATR operates in Industrials, while WST operates in Health Care - the two are in different parts of the market.
  • WST is the larger of the two at $23.72B, about 2.7x ATR ($8.80B).
  • Over the past year, ATR is down 13.1% and WST is up 31.0% - WST leads by 44.1 points.
  • ATR has been more active in the news (13 items in the past 4 weeks vs 6 for WST).
  • WST has more recent analyst coverage (18 ratings vs 17 for ATR).
PerformanceATR-13.12%WST+30.99%
2025-07-28+0.00%2026-07-28
MetricATRWST
Company
AptarGroup Inc.
West Pharmaceutical Services Inc.
Price
$137.94+3.35%
$337.08+1.79%
Market cap
$8.80B
$23.72B
1M return
+9.48%
-3.86%
1Y return
-13.12%
+30.99%
Industry
Plastic Products
Medical/Dental Instruments
Exchange
NYSE
NYSE
IPO
News (4w)
13
6
Recent ratings
17
18
ATR

AptarGroup Inc.

AptarGroup, Inc. provides a range of packaging, dispensing, and sealing solutions primarily for the beauty, personal care, home care, prescription drug, consumer health care, injectable, and food and beverage markets. The company operates through three segments: Pharma, Beauty + Home, and Food + Beverage. The Pharma segment provides pumps for nasal allergy treatments; and metered dose inhaler valves for respiratory ailments, such as asthma and chronic obstructive pulmonary diseases in pharmaceutical market; elastomer for injectable primary packaging components; and active packaging products. The Beauty + Home segment primarily sells pumps, closures, aerosol valves, accessories, and sealing solutions to the personal care and home care markets; and pumps and decorative components to the beauty market. The Food + Beverage segment offers dispensing and non-dispensing closures, elastomeric flow control components, spray pumps, and aerosol valves to the food and beverage markets. The company sells its products through own sales force, as well as independent representatives and distributors in Asia, Europe, Latin America, and North America. AptarGroup, Inc. has a strategic partnership with PureCycle Technologies LLC to develop ultra-pure recycled polypropylene into dispensing applications; and a collaboration with Sonmol for developing a digital therapies and services platform targeting respiratory and other diseases. The company was incorporated in 1992 and is headquartered in Crystal Lake, Illinois.

WST

West Pharmaceutical Services Inc.

West Pharmaceutical Services, Inc. designs and produces containment and delivery systems for injectable drugs and healthcare products in the Americas, Europe, the Middle East, Africa, and the Asia Pacific. The company operates in two segments, Proprietary Products and Contract-Manufactured Products. The Proprietary Products segment offers stoppers and seals for injectable packaging systems; syringe and cartridge components, including custom solutions for the needs of injectable drug applications, as well as administration systems that enhance the safe delivery of drugs through advanced reconstitution, mixing, and transfer technologies; and films, coatings, washing, and vision inspection and sterilization processes and services to enhance the quality of packaging components. It also provides drug containment solutions, including Crystal Zenith, a cyclic olefin polymer in the form of vials, syringes, and cartridges; and self-injection devices, as well as a range of integrated solutions, including analytical lab services, pre-approval primary packaging support and engineering development, regulatory expertise, and after-sales technical support. This segment serves biologic, generic, and pharmaceutical drug companies. The Contract-Manufactured Products segment is involved in the design, manufacture, and automated assembly of devices used in surgical, diagnostic, ophthalmic, injectable, and other drug delivery systems, as well as consumer products. It serves pharmaceutical, diagnostic, and medical device companies. The company distributes its products through its sales force and distribution network, as well as contract sales agents and regional distributors. West Pharmaceutical Services, Inc. was incorporated in 1923 and is headquartered in Exton, Pennsylvania.

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