West Pharmaceutical Services Inc (WST) · Insider trading
What West Pharmaceutical Services's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.
Bought, 12 months
$0
0 insiders, 0 trades
Sold, 12 months
$6.57M
2 insiders, 41% under a plan
Net, 12 months
−$6.57M
bought less sold
Latest filing
2026-09-15
filings read to 2026-10-19
Who traded, two years
| Insider | Bought | Sold | Trades | Last trade | Holds after |
|---|---|---|---|---|---|
| Favorite Annette FSr. VP & Chief HR Officer | – | $6.30M | 7 | 2026-09-15 | 21,818 |
| Winters ChadVP, Chief Accounting Officer | – | $269,400 | 1 | 2026-04-27 | 1,523 |
| Witherspoon CharlesVP & Treasurer | – | $218,211 | 2 | 2024-10-29 | 1,478 |
Open-market purchases and sales
Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.
| Date | Insider | Trade | Shares | Price | Value | Holds after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-15 | Favorite Annette FSr. VP & Chief HR Officer | Saleplan | 2,524 | 365.00 | $921,260 | 21,818 | Form 4 |
| 2026-09-14 | Favorite Annette FSr. VP & Chief HR Officer | Saleplan | 2,500 | 355.00 | $887,500 | 21,818 | Form 4 |
| 2026-09-11 | Favorite Annette FSr. VP & Chief HR Officer | Saleplan | 2,500 | 345.00 | $862,500 | 21,818 | Form 4 |
| 2026-09-08 | Favorite Annette FSr. VP & Chief HR Officer | Sale | 2,817 | 340.81 | $960,062 | 16,845 | Form 4 |
| 2026-09-08 | Favorite Annette FSr. VP & Chief HR Officer | Sale | 2,818 | 340.81 | $960,403 | 16,845 | Form 4 |
| 2026-09-08 | Favorite Annette FSr. VP & Chief HR Officer | Sale | 2,500 | 340.81 | $852,025 | 16,845 | Form 4 |
| 2026-04-27 | Winters ChadVP, Chief Accounting Officer | Sale | 896 | 300.67 | $269,400 | 1,523 | Form 4 |
| 2026-04-27 | Favorite Annette FSr. VP & Chief HR Officer | Sale | 2,817 | 305.20 | $859,748 | 16,828 | Form 4 |
| 2024-10-29 | Witherspoon CharlesVP & Treasurer | Sale | 478 | 310.40 | $148,371 | 1,478 | Form 4 |
| 2024-10-29 | Witherspoon CharlesVP & Treasurer | Sale | 225 | 310.40 | $69,840 | 1,253 | Form 4 |
Grants, exercises and other transactions
Pay, tax and paperwork rather than a choice to trade at the market price. Two years.
29 × option exercise26 × grant or award24 × shares withheld for tax
Show them
| Date | Insider | What | Shares | Price | Holds after | Filing |
|---|---|---|---|---|---|---|
| 2026-09-15 | Favorite Annette FSr. VP & Chief HR Officer | Option exercise M | +2,524 | 89.64 | 24,342 | Form 4 |
| 2026-09-14 | Favorite Annette FSr. VP & Chief HR Officer | Option exercise M | +2,500 | 89.64 | 24,318 | Form 4 |
| 2026-09-11 | Favorite Annette FSr. VP & Chief HR Officer | Option exercise M | +2,500 | 89.64 | 24,318 | Form 4 |
| 2026-09-08 | Favorite Annette FSr. VP & Chief HR Officer | Option exercise M | +2,817 | 83.47 | 19,662 | Form 4 |
| 2026-09-08 | Favorite Annette FSr. VP & Chief HR Officer | Option exercise M | +2,818 | 83.47 | 19,663 | Form 4 |
| 2026-09-08 | Favorite Annette FSr. VP & Chief HR Officer | Option exercise M | +2,500 | 89.64 | 19,345 | Form 4 |
| 2026-08-11 | McMahon Robert W.SVP & Chief Financial Officer | Option exercise M | +794 | – | 3,775 | Form 4 |
| 2026-08-11 | McMahon Robert W.SVP & Chief Financial Officer | Shares withheld for tax F | −346 | 351.37 | 3,429 | Form 4 |
| 2026-08-11 | McMahon Robert W.SVP & Chief Financial Officer | Option exercise M | +6,355 | – | 9,784 | Form 4 |
| 2026-08-11 | McMahon Robert W.SVP & Chief Financial Officer | Shares withheld for tax F | −2,764 | 351.37 | 7,021 | Form 4 |
| 2026-05-12 | Campbell Shane AldenSVP, Proprietary Segment | Option exercise M | +296 | – | 358 | Form 4 |
| 2026-05-12 | Campbell Shane AldenSVP, Proprietary Segment | Shares withheld for tax F | −84 | 312.07 | 274 | Form 4 |
| 2026-05-12 | Campbell Shane AldenSVP, Proprietary Segment | Option exercise M | +474 | – | 748 | Form 4 |
| 2026-05-12 | Campbell Shane AldenSVP, Proprietary Segment | Shares withheld for tax F | −135 | 312.07 | 613 | Form 4 |
| 2026-05-04 | Buthman Mark ADirector | Grant or award A | +791 | – | 44,309 | Form 4 |
| 2026-05-04 | Feehery William FDirector | Grant or award A | +791 | – | 32,519 | Form 4 |
| 2026-05-04 | Friel Robert FDirector | Grant or award A | +791 | – | 5,513 | Form 4 |
| 2026-05-04 | Haugen Janet BrutscheaDirector | Grant or award A | +791 | – | 2,373 | Form 4 |
| 2026-05-04 | Joseph MollyDirector | Grant or award A | +791 | – | 4,398 | Form 4 |
| 2026-05-04 | Keller Deborah LDirector | Grant or award A | +791 | – | 11,560 | Form 4 |
| 2026-05-04 | Lai Goldman MylaDirector | Grant or award A | +791 | – | 20,435 | Form 4 |
| 2026-05-04 | Lockhart Stephen HDirector | Grant or award A | +791 | – | 3,523 | Form 4 |
| 2026-05-04 | Michels Douglas ADirector | Grant or award A | +791 | – | 46,496 | Form 4 |
| 2026-05-04 | Pucci PaoloDirector | Grant or award A | +791 | – | 11,854 | Form 4 |
| 2026-04-27 | Winters ChadVP, Chief Accounting Officer | Option exercise M | +896 | 173.22 | 2,419 | Form 4 |
| 2026-04-27 | Favorite Annette FSr. VP & Chief HR Officer | Option exercise M | +2,817 | 83.47 | 19,645 | Form 4 |
| 2026-02-20 | Winters ChadVP, Chief Accounting Officer | Option exercise M | +89 | – | 1,553 | Form 4 |
| 2026-02-20 | Winters ChadVP, Chief Accounting Officer | Shares withheld for tax F | −30 | 241.12 | 1,523 | Form 4 |
| 2026-02-20 | Witherspoon CharlesVP & Treasurer | Option exercise M | +60 | – | 1,430 | Form 4 |
| 2026-02-20 | Witherspoon CharlesVP & Treasurer | Shares withheld for tax F | −22 | 241.12 | 1,408 | Form 4 |
| 2026-02-20 | Poussot Rodolphe JeanSVP, Strategy & Corporate Dev | Option exercise M | +383 | – | 691 | Form 4 |
| 2026-02-20 | Poussot Rodolphe JeanSVP, Strategy & Corporate Dev | Shares withheld for tax F | −130 | 241.12 | 561 | Form 4 |
| 2026-02-18 | Favorite Annette FSr. VP & Chief HR Officer | Option exercise M | +135 | – | 17,410 | Form 4 |
| 2026-02-18 | Favorite Annette FSr. VP & Chief HR Officer | Shares withheld for tax F | −36 | 248.26 | 17,374 | Form 4 |
| 2026-02-18 | Green Eric MarkDirector, President, CEO and Board Chair | Option exercise M | +1,319 | – | 175,734 | Form 4 |
| 2026-02-18 | Green Eric MarkDirector, President, CEO and Board Chair | Shares withheld for tax F | −574 | 248.26 | 175,161 | Form 4 |
| 2026-02-18 | Poussot Rodolphe JeanSVP, Strategy & Corporate Dev | Option exercise M | +82 | – | 335 | Form 4 |
| 2026-02-18 | Poussot Rodolphe JeanSVP, Strategy & Corporate Dev | Shares withheld for tax F | −28 | 248.26 | 307 | Form 4 |
| 2026-02-17 | Favorite Annette FSr. VP & Chief HR Officer | Grant or award A | +442 | – | 17,425 | Form 4 |
| 2026-02-17 | Favorite Annette FSr. VP & Chief HR Officer | Shares withheld for tax F | −150 | 243.19 | 17,275 | Form 4 |
| 2026-02-17 | Green Eric MarkDirector, President, CEO and Board Chair | Grant or award A | +4,419 | – | 174,200 | Form 4 |
| 2026-02-17 | Green Eric MarkDirector, President, CEO and Board Chair | Shares withheld for tax F | −1,305 | 243.19 | 172,895 | Form 4 |
| 2026-02-17 | Winters ChadVP, Chief Accounting Officer | Grant or award A | +150 | – | 1,513 | Form 4 |
| 2026-02-17 | Winters ChadVP, Chief Accounting Officer | Shares withheld for tax F | −51 | 243.19 | 1,462 | Form 4 |
| 2026-02-17 | Witherspoon CharlesVP & Treasurer | Grant or award A | +116 | – | 1,411 | Form 4 |
| 2026-02-17 | Witherspoon CharlesVP & Treasurer | Shares withheld for tax F | −42 | 243.19 | 1,370 | Form 4 |
| 2026-02-11 | McMahon Robert W.SVP & Chief Financial Officer | Option exercise M | +4,231 | – | 4,231 | Form 4 |
| 2026-02-11 | McMahon Robert W.SVP & Chief Financial Officer | Shares withheld for tax F | −1,250 | 246.16 | 2,980 | Form 4 |
| 2025-05-06 | Buthman Mark ADirector | Grant or award A | +1,071 | – | 42,861 | Form 4 |
| 2025-05-06 | Lockhart Stephen HDirector | Grant or award A | +1,071 | – | 2,708 | Form 4 |
| 2025-05-06 | Feehery William FDirector | Grant or award A | +1,071 | – | 31,363 | Form 4 |
| 2025-05-06 | Keller Deborah LDirector | Grant or award A | +1,071 | – | 10,657 | Form 4 |
| 2025-05-06 | Hofmann Thomas WDirector | Grant or award A | +1,071 | – | 44,637 | Form 4 |
| 2025-05-06 | Joseph MollyDirector | Grant or award A | +1,071 | – | 2,884 | Form 4 |
| 2025-05-06 | Lai Goldman MylaDirector | Grant or award A | +1,071 | – | 19,424 | Form 4 |
| 2025-05-06 | Friel Robert FDirector | Grant or award A | +1,071 | – | 4,682 | Form 4 |
| 2025-05-06 | Haugen Janet BrutscheaDirector | Grant or award A | +1,071 | – | 1,318 | Form 4 |
| 2025-05-06 | Pucci PaoloDirector | Grant or award A | +1,071 | – | 10,947 | Form 4 |
| 2025-05-06 | Michels Douglas ADirector | Grant or award A | +1,071 | – | 45,171 | Form 4 |
| 2025-02-18 | Green Eric MarkDirector, President, CEO and Board Chair | Option exercise M | +2,461 | 211.00 | 170,369 | Form 4 |
| 2025-02-18 | Green Eric MarkDirector, President, CEO and Board Chair | Shares withheld for tax F | −700 | 211.00 | 169,669 | Form 4 |
| 2025-02-18 | Witherspoon CharlesVP & Treasurer | Option exercise M | +66 | 211.00 | 1,319 | Form 4 |
| 2025-02-18 | Witherspoon CharlesVP & Treasurer | Shares withheld for tax F | −23 | 211.00 | 1,295 | Form 4 |
| 2025-02-18 | Winters ChadVP, Chief Accounting Officer | Option exercise M | +82 | 211.00 | 1,391 | Form 4 |
| 2025-02-18 | Winters ChadVP, Chief Accounting Officer | Shares withheld for tax F | −28 | 211.00 | 1,363 | Form 4 |
| 2025-02-18 | Favorite Annette FSr. VP & Chief HR Officer | Option exercise M | +246 | 211.00 | 6,823 | Form 4 |
| 2025-02-18 | Favorite Annette FSr. VP & Chief HR Officer | Shares withheld for tax F | −84 | 211.00 | 6,739 | Form 4 |
| 2025-02-18 | MacKay Kimberly BanksSVP, GC & Corporate Secretary | Option exercise M | +246 | 211.00 | 1,605 | Form 4 |
| 2025-02-18 | MacKay Kimberly BanksSVP, GC & Corporate Secretary | Shares withheld for tax F | −93 | 211.00 | 1,512 | Form 4 |
| 2025-02-18 | Reiss-Clark CindyChief Commercial Officer | Option exercise M | +246 | 211.00 | 5,131 | Form 4 |
| 2025-02-18 | Reiss-Clark CindyChief Commercial Officer | Shares withheld for tax F | −83 | 211.00 | 5,047 | Form 4 |
| 2025-02-18 | Birkett BernardSr VP, Chief Financial Officer | Option exercise M | +779 | 211.00 | 7,669 | Form 4 |
| 2025-02-18 | Birkett BernardSr VP, Chief Financial Officer | Shares withheld for tax F | −238 | 211.00 | 7,431 | Form 4 |
| 2025-02-18 | Birkett BernardSr VP, Chief Financial Officer | Option exercise M | +125 | 211.00 | 7,556 | Form 4 |
| 2025-02-18 | Birkett BernardSr VP, Chief Financial Officer | Shares withheld for tax F | −36 | 211.00 | 7,520 | Form 4 |
| 2024-12-16 | Haugen Janet BrutscheaDirector | Grant or award A | +247 | – | 247 | Form 4/A |
| 2024-10-29 | Abraham SiljiSVP, Chief Technology Officer | Option exercise M | +458 | – | 3,318 | Form 4 |
| 2024-10-29 | Abraham SiljiSVP, Chief Technology Officer | Shares withheld for tax F | −180 | 318.41 | 3,138 | Form 4 |
| 2024-10-29 | Witherspoon CharlesVP & Treasurer | Option exercise M | +478 | 173.22 | 1,956 | Form 4 |
How to read it
- Buy, sale
- Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
- Plan
- A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
- Holds after
- The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
- Value
- Shares times the price the form reports, which is often an average over several fills on the day.
Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.