Joseph A. Tautges is CFO & VP at CDK Global, Inc. (CDK). They have made 2 open-market trades across 2 companies since 2018, most recently 2026-06-08.
CIK 0001482249
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 $400K since 2018, against 1 sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CDK | 231,834 | $12.7M |
| AMBQ | 53,703 | $2.7M |
| HEW | 26,831 | — |
| Total | $15.4M |
Shares reported on the most recent Form 4, priced at the 2026-06-10 close. 1 holding could not be priced and is excluded from the total.
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.