Knell Michael Gunnar sold $1.7M of CRL
Knell Michael Gunnar (SVP, Finance and CAO) sold 6,645 shares of CHARLES RIVER LABORATORIES INTERNATIONAL, INC. (CRL) at an average of $260.38 ($258.53–$265.17, $1.73M total) across 9 trades on 2026-08-06.
How this was made
The 30-second read
Why it matters
It provides a fresh, primary-source datapoint on insider selling size, timing, and average price range, but it does not include any new business, earnings, or regulatory information.
Market read
Traders may monitor insider activity as a sentiment input, but this specific filing lacks fundamental catalysts.
What to watch
No 10b5-1 plan is indicated, so traders may over-interpret intent; also, the sales occurred Aug. 6, so the market impact may already be partially priced.
Background
The article is an SEC Form 4 insider transaction disclosure for Charles River Laboratories International, Inc.
Ticker impact
Charles River Laboratories insider Knell sold about $1.73M of CRL shares in an open-market sale reported on Form 4 filed Aug. 10.
Low likelihood of a sustained price move; any reaction is likely limited to short-term sentiment around insider selling.
This is a routine Form 4 insider transaction with no 10b5-1 plan stated and no accompanying operational or guidance change disclosed in the text.
Market effects
Minimal, as the disclosure is company-specific insider selling without sector-wide regulatory or clinical signals.
None indicated.
None indicated.
Counterpoint
The sale may be driven by personal liquidity needs rather than a negative view, especially since the filing does not provide a fundamental rationale.
Key entities
- issuerCHARLES RIVER LABORATORIES INTERNATIONAL, INC.
CRL, the company whose insider transaction is disclosed.
- insiderKnell Michael Gunnar
SVP, Finance and CAO who sold 6,645 shares in open-market transactions.

