Tom Frohlich is COO at CHINOOK THERAPEUTICS, INC. (KDNY). They have made 10 open-market trades across 2 companies since 2021, most recently 2026-02-12.
CIK 0001823925
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 $44K since 2025, against 9 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| JBIO | BUY | 2025-05-16 | 2025-05-19 | $7.40 | $44K | N/A | N/A | N/A |
| KDNY | SELL | 2023-02-10 | 2023-02-15 | $23.75 | $88K | -0.5% | +1.3% | +1.9% |
| KDNY | SELL | 2023-01-31 | 2023-02-02 | $24.68 | $225K | -5.1% | -6.7% | -23.0% |
| KDNY | SELL | 2022-12-13 | 2022-12-15 | $25.00 | $250K | +3.2% | +7.0% | -9.9% |
| KDNY | SELL | 2022-11-07 | 2022-11-09 | $22.16 | $222K | -11.1% | -0.5% | +8.2% |
| KDNY | SELL | 2022-10-06 | 2022-10-11 | $19.69 | $290K | +8.1% | +18.3% | +30.9% |
| KDNY | SELL | 2022-02-11 | 2022-02-14 | $12.74 | $48K | +0.6% | +6.6% | +6.6% |
| KDNY | SELL | 2021-11-10 | 2021-11-12 | $15.48 | $193K | +0.2% | -5.3% | -20.2% |
| KDNY | SELL | 2021-11-05 | 2021-11-09 | $14.68 | $698K | +4.0% | +1.2% | -15.8% |
| KDNY | SELL | 2021-09-24 | 2021-09-24 | $13.00 | $260K | -4.0% | -16.7% | +28.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.