Michael Gunnar Knell is CAO & VP at CHARLES RIVER LABORATORIES INTERNATIONAL, INC. (CRL). They have made 9 open-market trades across 1 company since 2020, most recently 2026-08-06.
CIK 0001543779
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.
0 open-market purchases, against 9 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CRL | 11,852 | $3.6M |
| BRKR | 1,839 | $101K |
| Total | $3.7M |
Shares reported on the most recent Form 4, priced at the 2026-08-10 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 |
|---|---|---|---|---|---|---|---|---|
| CRL | SELL | 2026-08-06 | 2026-08-10 | $260.38 | $1.7M | +6.0% | +1.3% | — |
| CRL | SELL | 2024-03-08 | 2024-03-11 | $267.52 | $432K | +4.0% | -5.8% | -18.4% |
| CRL | SELL | 2024-03-04 | 2024-03-05 | $261.13 | $979K | -1.5% | -4.7% | -20.9% |
| CRL | SELL | 2023-08-10 | 2023-08-14 | $216.54 | $637K | -7.8% | -5.5% | -21.1% |
| CRL | SELL | 2022-11-16 | 2022-11-17 | $248.59 | $425K | -5.7% | -10.7% | +3.8% |
| CRL | SELL | 2021-06-04 | 2021-06-07 | $335.24 | $1.0M | +4.5% | +12.0% | +31.3% |
| CRL | SELL | 2021-06-03 | 2021-06-04 | $329.76 | $264K | +4.7% | +11.9% | +33.2% |
| CRL | SELL | 2021-02-19 | 2021-02-23 | $290.99 | $239K | -3.0% | -0.2% | +17.3% |
| CRL | SELL | 2020-08-07 | 2020-08-10 | $216.60 | $1.5M | -1.9% | -4.1% | +8.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.