Latest filingAug 27, 2026Most recent Form 4
CRL
CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
NYSEConsumer DiscretionaryServices-Commercial Physical & Biological Research
Insider activity for last month from 08/03 to 09/03. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$00 buys
Total selling$1.08B3 sells
Net open-market-$1.08B4 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period12transactions
- M · Option exercise · dominant8 · 67%
- S · Open-market sells3 · 25%
- G · Gifts1 · 8%
Activity by reported role
A joint filing can contribute to multiple roles18transactions
- Director · dominant8 · 44%
- CEVP3 · 17%
- DISC3 · 17%
- SA3 · 17%
- Chief executive officer1 · 6%
Distinct insiders active
Reporting-owner CIKs by month · peak Aug 2026 (4)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeFoster James CCommon Stock · Direct
65,157Aug 25, 2026
Andrews Nancy CCommon Stock · Direct
1,438Aug 18, 2026
Parisotto Shannon MCommon Stock · Direct
6,846Aug 19, 2026
Foster James CStock Options (Right to Buy) · Direct
12,429Aug 25, 2026
Andrews Nancy CStock Options (Right to Buy) · Direct
0Aug 18, 2026
Parisotto Shannon MStock Options (Right to Buy) · Direct
2,039Aug 19, 2026
Girshick BirgitCommon Stock · Direct
35,485Aug 19, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 03 → Sep 03
LessMore
Top insiders
By absolute net value across the selected period- PM-$203.9k
- AC-$69.3k
- GB+$0
Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
CRL transaction history
Filters apply within this company and selected period by default| Ticker | Insider | Role | Type | Shares | Value | Code | Signals | 90d return | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|---|
| CRL | Girshick Birgit | CEO | gift | 528 | $0 | G | −3.1% | 08/20 | 08/19 | |
| CRL | Parisotto Shannon M | CEVPDISCSA | exercise10b5-1 | 2.03k | $0 | M | −3.1% | 08/20 | 08/19 | |
| CRL | Parisotto Shannon M | CEVPDISCSA | sale10b5-1 | 2.03k | -$59.9M | S | −3.1% | 08/20 | 08/19 | |
| CRL | Parisotto Shannon M | CEVPDISCSA | exercise10b5-1 | 2.03k | $39.5M | M | −3.1% | 08/20 | 08/19 | |
| CRL | Andrews Nancy C | DIR | exercise | 573 | $0 | M | −3.1% | 08/20 | 08/18 | |
| CRL | Andrews Nancy C | DIR | sale | 573 | -$16.3M | S | −3.1% | 08/20 | 08/18 | |
| CRL | Andrews Nancy C | DIR | exercise | 573 | $9.41M | M | −3.1% | 08/20 | 08/18 |
CHARLES RIVER LABORATORIES INTERNATIONAL, INC. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at CHARLES RIVER LABORATORIES INTERNATIONAL, INC.?
FOSTER JAMES C, Girshick Birgit, Parisotto Shannon M, Andrews Nancy C.
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
Foster James C reported a sale on Aug 25, 2026 valued at $1.00B. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $10,831,453.20. Sales can occur for many non-investment reasons.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.