Patrick J. Zenner is Director at WEST PHARMACEUTICAL SERVICES INC (WST). They have made 20 open-market trades across 4 companies since 2006, most recently 2026-01-02.
CIK 0001139036
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
14 open-market purchases totalling $387K since 2007, against 6 sales. Across 12 scored buys the stock is up 5.0% at ninety days, and 2.8 points ahead of the S&P over the same stretch.
12 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 25% | 25% | 25% |
| Avg Move | -4.3% | +3.4% | +5.0% |
| Alpha | -0.2% | +3.1% | +2.8% |
| Scored | 12 | 12 | 12 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| WST | BUY | 2018-05-15 | 2018-05-17 | $88.89 | $24K | +5.9% | +14.2% | +29.3% |
| ARQL | BUY | 2018-05-14 | 2018-05-15 | $2.96 | $25K | +57.0% | +61.9% | +73.2% |
| WST | SELL | 2017-11-10 | 2020-10-22 | $106.16 | $47K | -1.6% | -2.0% | +8.4% |
| WST | BUY | 2017-10-17 | 2020-10-22 | $97.42 | $43K | -1.6% | -2.0% | +8.4% |
| WST | BUY | 2016-12-08 | 2016-12-09 | $84.53 | $28K | +1.3% | +3.9% | -2.7% |
| WST | SELL | 2016-02-23 | 2016-02-24 | $59.39 | $760K | +4.9% | +7.5% | +19.8% |
| ARQL | BUY | 2015-12-11 | 2015-12-14 | $2.15 | $5K | -14.3% | -14.3% | -25.8% |
| ARQL | BUY | 2015-03-11 | 2015-03-12 | $2.32 | $25K | -14.3% | -3.2% | -3.2% |
| WST | SELL | 2015-02-23 | 2015-02-24 | $53.69 | $687K | -5.9% | -2.8% | -2.8% |
| ARQL | BUY | 2014-11-14 | 2014-11-17 | $1.20 | $25K | -14.3% | -3.2% | -3.2% |
| ARQL | BUY | 2014-03-17 | 2014-03-19 | $2.12 | $10K | -14.3% | -3.2% | -3.2% |
| WST | SELL | 2014-02-26 | 2014-02-27 | $46.12 | $590K | -5.9% | -2.8% | -2.8% |
| WST | SELL | 2012-11-13 | 2012-11-13 | $53.56 | $174K | -5.9% | -2.8% | -2.8% |
| ARQL | BUY | 2012-06-12 | 2012-06-14 | $6.47 | $26K | -14.3% | -3.2% | -3.2% |
| ARQL | BUY | 2011-12-02 | 2011-12-05 | $5.53 | $24K | -14.3% | -3.2% | -3.2% |
| ARQL | BUY | 2009-11-25 | 2009-11-30 | $3.58 | $25K | -14.3% | -3.2% | -3.2% |
| ARQL | BUY | 2008-11-21 | 2008-11-24 | $2.43 | $49K | -14.3% | -3.2% | -3.2% |
| SCRX | BUY | 2008-03-17 | 2008-03-17 | $18.46 | $50K | N/A | N/A | N/A |
| CRGN | BUY | 2007-05-07 | 2007-05-08 | $2.75 | $28K | N/A | N/A | N/A |
| SCRX | SELL | 2006-11-08 | 2006-11-09 | $21.46 | $99K | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| DRTE |
| 19,000 |
| — |
| SCRX | 15,000 | — |
| CRGN | 10,000 | — |
| Total | $37.1M |
Shares reported on the most recent Form 4, priced at the 2026-01-06 close. 4 holdings could not be priced and are excluded from the total.