Robert W. McMahon - 11 Feb 2026 Form 4 Insider Report for WEST PHARMACEUTICAL SERVICES INC (WST)

Signature
/s/ Louis Lalli, as an agent for Robert W. McMahon
Issuer symbol
WST
Transactions as of
11 Feb 2026
Net transactions value
-$307,708
Form type
4
Filing time
12 Feb 2026, 21:37:44 UTC
Previous filing
12 Aug 2025
Next filing
03 Mar 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
McMahon Robert W. SVP & Chief Financial Officer 530 HERMAN O. WEST DRIVE, EXTON /s/ Louis Lalli, as an agent for Robert W. McMahon 12 Feb 2026 0001608730

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction WST Common Stock Options Exercise +4,231 4,231 11 Feb 2026 Direct F1
transaction WST Common Stock Tax liability $307,708 -1,250 -30% $246.16 2,980 11 Feb 2026 Direct

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 -4,231 -33% $0.000000 8,462 11 Feb 2026 Common Stock 4,231 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Restricted stock units convert into common stock on a one-for-one basis.
F2 On August 11, 2025, the reporting person was granted 12,670 restricted stock units, vesting in three installments - 4,223 shares (plus dividend equivalents) to vest six months from the grant date, 6,335 shares (plus dividend equivalents) to vest 12 months from the grant date and 2,112 shares (plus dividend equivalents) to vest 24 months from the grant date.