# EDGAR Filing Document

**Accession Number:** 0000105770
**File Stem:** 0000105770-26-000077
**Filing Date:** 2026-5
**Character Count:** 7780
**Document Hash:** 01adb0e55540785be42f8ed891f2984d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000105770-26-000077.hdr.sgml**: 20260520

**ACCESSION NUMBER**: 0000105770-26-000077

**CONFORMED SUBMISSION TYPE**: 8-K/A

**PUBLIC DOCUMENT COUNT**: 12

**CONFORMED PERIOD OF REPORT**: 20260507

**ITEM INFORMATION**: <ITEMS>1.05

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20260520

**DATE AS OF CHANGE**: 20260520

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** WEST PHARMACEUTICAL SERVICES INC
- **CENTRAL INDEX KEY:** 0000105770
- **STANDARD INDUSTRIAL CLASSIFICATION:** SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 231210010
- **STATE OF INCORPORATION:** PA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-08036
- **FILM NUMBER:** 261003888

**BUSINESS ADDRESS:**
- **STREET 1:** 530 HERMAN O. WEST DRIVE
- **CITY:** EXTON
- **STATE:** PA
- **ZIP:** 19341
- **BUSINESS PHONE:** 6105942900

**MAIL ADDRESS:**
- **STREET 1:** 530 HERMAN O. WEST DRIVE
- **CITY:** EXTON
- **STATE:** PA
- **ZIP:** 19341

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** WEST CO INC
- **DATE OF NAME CHANGE:** 19990405

?xml version='1.0' encoding='ASCII'? wst-20260507

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 8-K/A**

**(Amendment No. 1)**

**CURRENT REPORT**

**Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934**

**Date of Report (Date of earliest event reported) – May 7, 2026**![wstlogoq319.jpg](wst-20260507_g1.jpg)

<u>WEST PHARMACEUTICAL SERVICES, INC.</u>

(Exact name of registrant as specified in its charter)

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| | | |
|:---|:---|:---|
| Pennsylvania | 1-8036 | 23-1210010 |
| (State or other jurisdiction<br>of incorporation) | (Commission File Number) | (IRS Employer<br>Identification No.) |
| 530 Herman O. West Drive, Exton, PA |  | 19341-1147 |
| (Address of principal executive offices) |  | (Zip Code) |

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Registrant's telephone number, including area code: **610-594-2900** 

Not Applicable <br> (Former name or address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

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| | | |
|:---|:---|:---|
| **Title of each class** | **Trading Symbol** | **Name of each exchange on which registered** |
| Common Stock, par value $0.25 per share | WST | New York Stock Exchange |

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Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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**Explanatory Note**

This Amendment No. 1 amends the Current Report on Form 8-K filed by West Pharmaceutical Services, Inc. (the "Company") with the Securities and Exchange Commission (the "SEC") on May 11, 2026 (the "Original Report").

**Item 1.05 Material Cybersecurity Incidents.** 

As previously disclosed in the Original Report, the Company determined on May 7, 2026 that the Company had experienced a material cybersecurity attack, in which certain data was exfiltrated by an unauthorized party and certain systems were encrypted. Upon initial detection of an intrusion on May 4, 2026, the Company promptly activated its incident response protocols, including proactively taking systems offline globally for containment purposes, notifying law enforcement, and engaging external cyber-forensic experts.

Remediation efforts have since progressed, with core enterprise systems restored in addition to critical processes for manufacturing, receiving and shipping restarted at all sites. The Company is now fully operational across its manufacturing, supply chain and commercial sites globally. While the Company's investigation into the nature and scope of the incident is continuing, including with respect to the extent of the data affected, no unauthorized activity or access is ongoing or has been observed since May 5, 2026.

Based on the investigation to date and information currently available, the Company believes that the incident has not had, and is not reasonably likely to have, a material impact on the Company's 2026 second-quarter and full-year financial guidance.

**Forward-Looking Statements**

This Current Report on Form 8-K contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including, but not limited to, statements regarding the Company's expectations regarding future events, financial guidance, actions or performance related to the cybersecurity incident, including the results of the Company's ongoing investigation thereof and the impact of the cybersecurity incident on the Company, and its financial or operational performance. Forward-looking statements may be identified by words such as "believe," "expect," "intend," "estimate," "plan," "anticipate," "project," "forecast," "guidance," "target," "may," "will," "continue" and similar expressions.

These statements are based on current expectations and assumptions and are subject to risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such forward-looking statements. For additional information regarding these risks as well as other risks, uncertainties and factors that could affect our forward-looking statements, please refer to Part I Item 1A, entitled "Risk Factors," of the Company's most recent Annual Report on Form 10-K and any amendments thereto, as well as the Company's most recently filed Quarterly Reports on Form 10-Q and other filings the Company makes with the Securities and Exchange Commission.

Forward-looking statements speak only as of the date of this Current Report on Form 8-K. Except as required by law or regulation, West Pharmaceutical Services, Inc. undertakes no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

**Item 9.01 Financial Statements and Exhibits.**

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| | | |
|:---|:---|:---|
| (d) | <u>Exhibit No.</u> | <u>Description</u> |
| | 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document). |

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**SIGNATURE**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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| | |
|:---|:---|
| Date: May 20, 2026 | WEST PHARMACEUTICAL SERVICES, INC. |
| By: | <u>/s/ Norman D. Finch Jr.</u> |
|  | Norman D. Finch Jr. |
|  | Senior Vice President, General Counsel and Corporate Secretary |

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**EXHIBIT INDEX**

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| | |
|:---|:---|
| <u>Exhibit No.</u> | <u>Description</u> |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document). |

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