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Chad Winters

WST
VP, CHIEF ACCOUNTING OFFICER · WEST PHARMACEUTICAL SERVICES INC · CIK 0001811424
FILING MIX · LIFETIME51%/49%
BUYS
23
SELLS
22
TOTAL VALUE
$2.65M
COMPANIES
1
ACTIVE SINCE
May 2020
HOLDINGS NOW
1,523
AVG SELL PX
$336.35
TRADE KIND
SHOWING 45 / 45
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
4 backtested trades · 8 horizons · 4 pending
Forward-return performance of every backtestable P/S trade by Chad Winters, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d4+75.00%+1.34%+0.60%+0.74%-2.01%—
14d4+0.00%+4.66%+2.94%+1.72%+1.23%—
30d4+25.00%+2.54%+2.63%-0.79%-3.86%—
60d4+0.00%+7.20%+5.23%+1.97%-0.18%—
90d4(1 pending)+33.33%-2.10%+9.61%-11.71%-10.32%—
180d4(1 pending)+100.00%-10.18%+12.69%-22.87%-23.22%—
1y4(1 pending)+100.00%-17.01%+25.72%-42.74%-42.24%—
2y4(1 pending)+100.00%-24.77%+46.09%-70.86%-71.67%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
WST · 1,522.81 shares · as of Apr 27, 2026
06051,2091,8142,419202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 23 buys / 22 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASE
VP, Chief Accounting Officer
896$173.22$155.2K2,418.81Apr 27, 2026Apr 29, 2026 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, Chief Accounting Officer
896——0Apr 27, 2026Apr 29, 2026 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, Chief Accounting Officer
896$300.67$269.4K1,522.81Apr 27, 2026Apr 29, 2026 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASEGRANT
Stock grant
808——808Mar 1, 2026Mar 3, 2026 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASEGRANT
Stock grant
340——340Mar 1, 2026Mar 3, 2026 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASE
VP, Chief Accounting Officer
89.328——1,552.994Feb 20, 2026Feb 23, 2026 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, Chief Accounting Officer
30.184$241.12$7.3K1,522.81Feb 20, 2026Feb 23, 2026 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, Chief Accounting Officer
89.328——267.972Feb 20, 2026Feb 23, 2026 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASEGRANT
Stock grant
149.684——1,512.682Feb 17, 2026Feb 19, 2026 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, Chief Accounting Officer
50.579$243.19$12.3K1,462.103Feb 17, 2026Feb 19, 2026 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASEGRANT
Stock grant
356——356Feb 18, 2025Feb 20, 2025 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASEGRANT
Stock grant
822——822Feb 18, 2025Feb 20, 2025 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASE
VP, Chief Accounting Officer
82.054$211.00$17.3K1,390.752Feb 18, 2025Feb 20, 2025 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, Chief Accounting Officer
27.727$211.00$5.9K1,363.025Feb 18, 2025Feb 20, 2025 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASE
VP, Chief Accounting Officer
675$173.22$116.9K2,123.698Mar 11, 2024Mar 12, 2024 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, Chief Accounting Officer
675——896Mar 11, 2024Mar 12, 2024 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, Chief Accounting Officer
815$358.82$292.4K1,308.698Mar 11, 2024Mar 12, 2024 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASEGRANT
Stock grant
179——1,448.698Feb 20, 2024Feb 22, 2024 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASEGRANT
Stock grant
1,020——1,020Feb 20, 2024Feb 22, 2024 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, Chief Accounting Officer
1,013$349.00$353.5K1,269.698Dec 4, 2023Dec 21, 2023 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, Chief Accounting Officer
456——0Dec 4, 2023Dec 21, 2023 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, Chief Accounting Officer
341——1,571Dec 4, 2023Dec 21, 2023 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASE
VP, Chief Accounting Officer
341$173.22$59.1K2,282.698Dec 4, 2023Dec 21, 2023 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASE
VP, Chief Accounting Officer
456$143.43$65.4K1,941.698Dec 4, 2023Dec 21, 2023 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASE
VP, Chief Accounting Officer
456$143.43$65.4K1,941.698Dec 1, 2023Dec 5, 2023 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, Chief Accounting Officer
1,013$349.00$353.5K1,269.698Dec 1, 2023Dec 5, 2023 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASE
VP, Chief Accounting Officer
341$173.22$59.1K2,282.698Dec 1, 2023Dec 5, 2023 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, Chief Accounting Officer
456——0Dec 1, 2023Dec 5, 2023 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, Chief Accounting Officer
341——1,571Dec 1, 2023Dec 5, 2023 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, Chief Accounting Officer
872——456May 30, 2023May 30, 2023 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASE
VP, Chief Accounting Officer
872$143.43$125.1K2,320.711May 30, 2023May 30, 2023 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, Chief Accounting Officer
872$339.51$296.1K1,448.711May 30, 2023May 30, 2023 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, Chief Accounting Officer
10$368.46$3.7K1,448.711May 5, 2023May 8, 2023 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASEGRANT
Stock grant
1,012——1,012Feb 21, 2023Feb 23, 2023 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASEGRANT
Stock grant
476$306.68$146.0K1,458.711Feb 21, 2023Feb 23, 2023 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, CAO & Corporate Controller
47$225.51$10.6K982.711Oct 31, 2022Oct 31, 2022 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, CAO & Corporate Controller
10$314.76$3.1K1,062.777May 5, 2022May 9, 2022 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASEGRANT
Stock grant
414$369.13$152.8K1,072.777Feb 22, 2022Feb 24, 2022 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASEGRANT
Stock grant
1,036——1,036Feb 22, 2022Feb 24, 2022 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, CAO & Corporate Controller
47$429.88$20.2K658.777Oct 29, 2021Nov 1, 2021 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, CAO & Corporate Controller
10$328.60$3.3K705.777May 5, 2021May 7, 2021 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASEGRANT
Stock grant
170$261.62$44.5K714.887Mar 12, 2021Mar 12, 2021 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASEGRANT
Stock grant
1,388——1,388Feb 23, 2021Feb 25, 2021 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
SALE
VP, CAO & Corporate Controller
47$275.23$12.9K544.887Oct 29, 2020Oct 30, 2020 ↗View →
WST
WEST PHARMACEUTICAL SERVICES INC
PURCHASEGRANT
Stock grant
102——591.887May 5, 2020May 7, 2020 ↗View →
Other insiders · WST
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About this filer
CIK 0001811424
ROLE
VP, Chief Accounting Officer
PRIMARY
WST
COMPANIES
1
ACTIVE SINCE
May 2020
MARKETPEEL · /INSIDER/0001811424DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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