Stephan D. Memmen is Former VP&GGM at AMPHENOL CORP /DE/ (APH). They have made 4 open-market trades across 2 companies since 2007, most recently 2026-10-02.
CIK 0001365553
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.
1 open-market purchase totalling $7K since 2026, against 3 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| APH | 10,000 | $794K |
| AIRG | 56,396 | $231K |
| Total | $1.0M |
Shares reported on the most recent Form 4, priced at the 2026-10-05 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.