Insiders who reported open-market trades in the last 12 months at the companies Michael Gunnar Knell files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
James C. Foster - $34.84M in CRL purchases and sales in the last 12 months
Michael Gunnar Knell is a corporate insider, tracked as SVP, Finance and CAO of CHARLES RIVER LABORATORIES INTERNATIONAL, INC. (CRL). InsiderAlpha holds 7 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Michael Gunnar Knell submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Michael Gunnar Knell been buying or selling stock?
Recorded transactions: 0 open-market purchases and 9 open-market sales ($1.73M) across all tracked filings.
Michael Gunnar Knell is SVP, Finance and CAO of CHARLES RIVER LABORATORIES INTERNATIONAL, INC. (CRL). 7 SEC Form 4 filings on record going back to 2025, most recently on 10 August 2026. Most recent open-market trade: sold $190K of CRL on 10 August 2026. Lifetime open-market sales: $1.73M.
Recent transactions
20
The latest 20 SEC Form 4 transactions reported by Michael Gunnar Knell.
All20Sells9Awards3Exercises3Withholding5
S
CRL$CRL CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
S - Open-market sale
736 shares @ $258.53$190K
S
CRL$CRL CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
S - Open-market sale
1.2K shares @ $258.53$312K
S
Trading pattern
InsiderAlpha's records for Michael Gunnar Knell go back to 2025: 7 primary Form 4 filings, an average of 3.5 per year. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
CRL$CRL CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
S - Open-market sale
404 shares @ $258.53$104K
M
CRL$CRL CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
M - Option exercise
736 shares @ $208.44$153K
M
CRL$CRL CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
M - Option exercise
1.2K shares @ $194.12$234K
M
CRL$CRL CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
M - Option exercise
404 shares @ $179.66$73K
S
CRL$CRL CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
S - Open-market sale
482 shares @ $265.17$128K
S
CRL$CRL CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
S - Open-market sale
620 shares @ $263.94$164K
S
CRL$CRL CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
S - Open-market sale
213 shares @ $262.37$56K
S
CRL$CRL CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
S - Open-market sale
810 shares @ $261.45$212K
S
CRL$CRL CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
S - Open-market sale
901 shares @ $260.63$235K
S
CRL$CRL CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
S - Open-market sale
1.3K shares @ $259.07$330K
F
CRL$CRL CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
F - Tax withholding / forfeiture
48 shares @ $180.71$9K
F
CRL$CRL CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
F - Tax withholding / forfeiture
152 shares @ $180.71$27K
A
CRL$CRL CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
A - Grant or award
1.8K shares @ $180.71$332K
F
CRL$CRL CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
F - Tax withholding / forfeiture
37 shares @ $156.73$6K
F
CRL$CRL CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
F - Tax withholding / forfeiture
50 shares @ $160.30$8K
F
CRL$CRL CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
F - Tax withholding / forfeiture
526 shares @ $211.68$111K
A
CRL$CRL CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
A - Grant or award
1.7K shares
A
CRL$CRL CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
