Insider at

04

Insider transactions

05
1 buys (P) 0 sells (S) Net: $199,997 + 60 non-open-market transactions below Avg return of open purchases vs close of 2026-10-23: 24.5% 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

60 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Nov. 11, 2025 CERT P 24,096 $8.30 $199,997 2,360,769 Direct +1.03% Acquired 24.5% (price as of )
March 16, 2022 CERT S 10b5-1 62,485 $20.17 $1,260,322 2,178,051 Direct -2.79% Disposed -48.8% (price as of )
March 11, 2022 CERT S 10b5-1 27,515 $20.29 $558,279 2,240,536 Direct -1.21% Disposed -49.1% (price as of )
Feb. 18, 2022 CERT S 10b5-1 70,294 $23.31 $1,638,553 2,272,757 Direct -3.00% Disposed -55.7% (price as of )
Feb. 18, 2022 CERT S 10b5-1 4,706 $23.93 $112,615 2,268,051 Direct -0.21% Disposed -56.8% (price as of )
Feb. 17, 2022 CERT S 10b5-1 53,407 $23.83 $1,272,689 2,379,644 Direct -2.20% Disposed -56.7% (price as of )
Feb. 17, 2022 CERT S 10b5-1 30,075 $24.93 $749,770 2,349,569 Direct -1.26% Disposed -58.6% (price as of )
Feb. 17, 2022 CERT S 10b5-1 6,518 $25.49 $166,144 2,343,051 Direct -0.28% Disposed -59.5% (price as of )
Jan. 26, 2022 CERT S 10b5-1 23,804 $24.72 $588,435 2,484,247 Direct -0.95% Disposed -58.2% (price as of )
Jan. 26, 2022 CERT S 10b5-1 51,196 $25.67 $1,314,201 2,433,051 Direct -2.06% Disposed -59.8% (price as of )
Dec. 22, 2021 CERT S 10b5-1 75,000 $28.58 $2,143,500 2,508,051 Direct -2.90% Disposed -63.9% (price as of )
Dec. 7, 2021 CERT S 10b5-1 15,151 $27.58 $417,865 2,637,900 Direct -0.57% Disposed -62.5% (price as of )
Dec. 7, 2021 CERT S 10b5-1 54,849 $27.82 $1,525,899 2,583,051 Direct -2.08% Disposed -62.9% (price as of )
Dec. 3, 2021 CERT S 10b5-1 66,500 $25.99 $1,728,335 2,656,551 Direct -2.44% Disposed -60.3% (price as of )
Dec. 3, 2021 CERT S 10b5-1 3,500 $26.54 $92,890 2,653,051 Direct -0.13% Disposed -61.1% (price as of )
Nov. 24, 2021 CERT S 10b5-1 127,521 $28.40 $3,621,596 2,740,530 Direct -4.45% Disposed -63.6% (price as of )
Nov. 24, 2021 CERT S 10b5-1 17,479 $28.66 $500,948 2,723,051 Direct -0.64% Disposed -64.0% (price as of )
Nov. 19, 2021 CERT S 10b5-1 70,000 $30.31 $2,121,700 2,868,051 Direct -2.38% Disposed -65.9% (price as of )
Oct. 27, 2021 CERT S 10b5-1 74,800 $39.24 $2,935,152 2,938,251 Direct -2.48% Disposed -73.7% (price as of )
Oct. 27, 2021 CERT S 10b5-1 200 $39.76 $7,952 2,938,051 Direct -0.01% Disposed -74.0% (price as of )
Sept. 22, 2021 CERT S 10b5-1 58,146 $36.24 $2,107,211 3,029,905 Direct -1.88% Disposed -71.5% (price as of )
Sept. 22, 2021 CERT S 10b5-1 16,854 $36.83 $620,733 3,013,051 Direct -0.56% Disposed -72.0% (price as of )
Aug. 25, 2021 CERT S 10b5-1 24,308 $31.08 $755,493 3,138,743 Direct -0.77% Disposed -66.8% (price as of )
Aug. 25, 2021 CERT S 10b5-1 50,692 $31.37 $1,590,208 3,088,051 Direct -1.62% Disposed -67.1% (price as of )
July 28, 2021 CERT S 10b5-1 75,000 $26.16 $1,962,000 3,163,051 Direct -2.32% Disposed -60.5% (price as of )
June 23, 2021 CERT S 10b5-1 74,800 $26.53 $1,984,444 3,238,251 Direct -2.26% Disposed -61.1% (price as of )
June 23, 2021 CERT S 10b5-1 200 $27.17 $5,434 3,238,051 Direct -0.01% Disposed -62.0% (price as of )

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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
May 20, 2025 CERT Performance Stock Units Common Stock (280,716) · · 280,716 Acquired
May 20, 2025 CERT Restricted Stock Units Common Stock (187,144) · April 1, 2028 187,144 Acquired
April 1, 2025 CERT Restricted Stock Units Common Stock (36,580) · April 1, 2025 36,580 Disposed
April 1, 2025 CERT Restricted Stock Units Common Stock (33,220) · April 1, 2026 33,220 Disposed
April 1, 2025 CERT Restricted Stock Units Common Stock (41,593) · April 1, 2027 41,593 Disposed
April 1, 2024 CERT Restricted Stock Units Common Stock (124,779) · April 1, 2027 124,779 Acquired
April 1, 2024 CERT Restricted Stock Units Common Stock (36,580) · April 1, 2025 36,580 Disposed
April 1, 2024 CERT Restricted Stock Units Common Stock (33,219) · April 1, 2026 33,219 Disposed
April 1, 2024 CERT Restricted Stock Units Common Stock (120,981) · April 1, 2027 120,981 Acquired
April 1, 2023 CERT Restricted Stock Units Common Stock (99,659) · April 1, 2026 99,659 Acquired
March 31, 2023 CERT Restricted Stock Units Common Stock (36,580) · April 1, 2025 36,580 Disposed
April 1, 2022 CERT Restricted Stock Units Common Stock (109,740) · April 1, 2025 109,740 Acquired
Dec. 29, 2017 WST Phantom Stock Unit Common Stock (233) · · 233 Acquired
Sept. 29, 2017 WST Phantom Stock Unit Common Stock (234) · · 234 Acquired
June 30, 2017 WST Phantom Stock Unit Common Stock (238) · · 238 Acquired
March 31, 2017 WST Phantom Stock Unit Common Stock (275) · · 275 Acquired
Dec. 30, 2016 WST Phantom Stock Unit Common Stock (264) · · 264 Acquired
Sept. 30, 2013 WST Phantom Stock Unit Common Stock (491) · · 491 Acquired
Sept. 30, 2013 WST Phantom Stock Unit Common Stock (429) · · 429 Acquired
June 28, 2013 WST Phantom Stock Unit Common Stock (272) · · 272 Acquired
June 28, 2013 WST Phantom Stock Unit Common Stock (249) · · 249 Acquired
March 29, 2013 WST Phantom Stock Unit Common Stock (270) · · 270 Acquired
Dec. 31, 2012 WST Phantom Stock Unit Common Stock (323) · · 323 Acquired
Sept. 28, 2012 WST Phantom Stock Unit Common Stock (236) · · 236 Acquired
June 30, 2012 WST Phantom Stock Unit Common Stock · · 229 Acquired

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

Initial ownership (Form 3) 1 holding

07

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

DateTickerSecuritySharesOwnership
Dec. 11, 2020 CERT Common Stock · Direct

Holdings reported on Form 4 5 reported holdings

08

Positions listed on each Form 4 without a transaction in that filing (Table I and II holdings), newest filing first.

DateTickerSecuritySharesExercise priceExpirationOwnership
Aug. 1, 2018 WST Common Stock 18,930 · · Direct
Oct. 3, 2017 WST Common Stock 18,847 · · Direct
July 5, 2017 WST Common Stock 18,819 · · Direct
April 4, 2017 WST Common Stock 17,098 · · Direct
Jan. 4, 2017 WST Common Stock 17,072 · · Direct

Compensation (DEF 14A)

10

Matched by name from proxy statements (DEF 14A) — verify against the filing.

CERT

CEO
Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2020 $772,500 · · · $602,555 · $12,514 $3,626,241
2019 $437,500 · · · $274,838 · $3,022 $3,507,981

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.