Ernst 02494 Teunissen is CFO at TripAdvisor, Inc. (TRIP). They have made 11 open-market trades across 2 companies since 2018, most recently 2026-07-29.
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 $200K since 2025, against 10 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| TRIP | 36,268 | $338K |
| CRTO | 12,471 | $191K |
| Total | $530K |
Shares reported on the most recent Form 4, priced at the 2026-07-29 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CRTO | BUY | 2025-11-03 | 2025-11-04 | $22.71 | $200K | -7.5% | -12.8% | -15.3% |
| TRIP | SELL | 2022-08-16 | 2022-08-17 | $27.50 | $413K | -10.0% | -10.7% | -21.9% |
| TRIP | SELL | 2021-08-13 | 2021-08-17 | $35.44 | $108K | +9.1% | +7.8% | -5.0% |
| TRIP | SELL | 2021-06-15 | 2021-06-17 | $40.96 | $747K | -1.3% | -15.4% | -11.6% |
| TRIP | SELL | 2021-05-17 | 2021-05-18 | $41.00 | $63K | +8.6% | +2.5% | -16.1% |
| TRIP | SELL | 2021-01-08 | 2021-01-11 | $34.00 | $1.1M | -7.0% | +2.6% | +43.3% |
| TRIP | SELL | 2020-05-27 | 2020-05-28 | $22.75 | $1.0M | +13.6% | -9.3% | +9.2% |
| TRIP | SELL | 2019-06-17 | 2019-06-18 | $45.60 | $740K | -2.2% | -3.1% | -13.1% |
| TRIP | SELL | 2019-03-01 | 2019-03-04 | $53.08 | $1.6M | -1.9% | +1.5% | -19.1% |
| TRIP | SELL | 2018-06-15 | 2018-06-19 | $57.46 | $955K | -6.1% | +2.3% | -16.9% |
| TRIP | SELL | 2018-02-06 | 2018-02-08 | $40.00 | $378K | +8.7% | +10.8% | +22.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.