Insider at

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Insider transactions

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0 buys (P) 0 sells (S) Net: $0 + 8 non-open-market transactions below 12 months to the week close of 2026-10-23

Price change vs the latest weekly close (updated to the current quote in your browser when available), split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

No open-market trades on record; showing all filings.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
March 1, 2026 WST A 437 · · 437 Direct · Acquired
March 1, 2026 WST A 1,040 · · 1,040 Direct · Acquired
Feb. 20, 2026 WST M 383 · · 691 Direct +124.35% Acquired
Feb. 20, 2026 WST F 130 $241.12 $31,346 561 Direct -18.81% Disposed 62.6% (price as of )
Feb. 20, 2026 WST M 383 · · 383 Direct -50.00% Disposed
Feb. 18, 2026 WST M 82 · · 335 Direct +32.41% Acquired
Feb. 18, 2026 WST F 28 $248.26 $6,951 307 Direct -8.36% Disposed 58.0% (price as of )
Feb. 18, 2026 WST M 82 · · 248 Direct -24.85% Disposed

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

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DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
March 1, 2026 WST Rst. Stock Unit Common Stock (437) · · 437 Acquired
March 1, 2026 WST Stock Option (Right to Buy) Common Stock (1,040) $254.34 March 1, 2036 1,040 Acquired
Feb. 20, 2026 WST Rst. Stock Unit Common Stock (383) · · 383 Disposed
Feb. 18, 2026 WST Rst. Stock Unit Common Stock (82) · · 82 Disposed

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 5 holdings

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Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
Aug. 1, 2025 WST Common Stock 252 Direct
Aug. 1, 2025 WST Rst. Stock Unit→ Common Stock (765) 765 Direct
Aug. 1, 2025 WST Rst. Stock Unit→ Common Stock (329) 329 Direct
Aug. 1, 2025 WST Stock Option (Right to Buy)→ Common Stock (1,577) 1,577 Direct
Aug. 1, 2025 WST Stock Option (Right to Buy)→ Common Stock (760) 760 Direct