Eric Mark Green - 17 Feb 2026 Form 4 Insider Report for WEST PHARMACEUTICAL SERVICES INC (WST)

Role
President, CEO and Board Chair, Director
Signature
/s/ Louis Lalli, as an agent for Eric Green
Issuer symbol
WST
Transactions as of
17 Feb 2026
Net transactions value
-$459,846
Form type
4
Filing time
19 Feb 2026, 19:00:34 UTC
Previous filing
05 Jan 2026
Next filing
03 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Green Eric Mark President, CEO and Board Chair, Director 530 HERMAN O. WEST DRIVE, EXTON /s/ Louis Lalli, as an agent for Eric Green 19 Feb 2026 0001336007

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction WST Common Stock Award $0 +4,419 +2.6% $0.000000 174,200 17 Feb 2026 Direct F1
transaction WST Common Stock Tax liability $317,456 -1,305 -0.75% $243.19 172,895 17 Feb 2026 Direct
transaction WST Common Stock Options Exercise +1,319 +0.76% 175,734 18 Feb 2026 Direct F2
transaction WST Common Stock Tax liability $142,390 -574 -0.33% $248.26 175,161 18 Feb 2026 Direct
holding WST Common Stock 257 17 Feb 2026 Non-Qualified Deferred Compensation Plan

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction WST Rst. Stock Unit Options Exercise $0 -1,319 -25% $0.000000 3,956 18 Feb 2026 Common Stock 1,319 Direct F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 These shares result from performance stock units (PSUs) which vested at the end of the respective 2023-2025 PSU performance period and were payable on the transaction date shown.
F2 Restricted stock units convert into common stock on a one-for-one basis.
F3 On February 18, 2025, the reporting person was granted 5,256 restricted stock units, vesting in four equal annual installments (plus dividend equivalents).