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Charles River Laboratories International, Inc. insider trading

In twelve months insiders at Charles River Laboratories International bought $4.4K and sold $52.1M on the open market; 10 of the 22 sales were under plans set months before.

Bought on the open market$4.4K1 purchase
Sold on the open market$52.1M22 sales
Sales set in advance10 of 22under Rule 10b5-1 plans
Pay taken in stockNone
New to this? How to read this page
  1. Insiders are the people who run the company: officers, directors and owners of 10% or more. They must report a trade on Form 4 within two business days.
  2. A purchase on the open market is the strongest sign: the insider spent their own money.
  3. A sale under a trading plan (Rule 10b5-1) says little: its dates were fixed months before. Sales outside a plan say more, but insiders sell for many reasons, such as taxes or a house.
  4. Grants, option exercises and shares held back for tax are left out.
  5. What is a Form 4? · Form 4 codes

What kind of trades

1 purchase worth $4.4K against 22 sales worth $52.1M; 10 of the sales were under plans set months before.

Purchasebought with their own money
Pay in stock, own choiceowed cash, chose shares
Sale outside a planthe insider picked the day
Sale under a plandates fixed months before
Says littlecompany plans, board pay, cash units
Bought
1 open market1 says little
Sold
12 outside a plan10 under a plan

Every Form 4 line of the last twelve months, counted by kind. The grades come from the filing itself: whether the insider paid cash, whether a plan set the date, whether pay was taken in stock by choice.

Insider trades on the share price

last twelve months

15 marks over twelve months, each in its grade: solid for the stronger signs, hollow or grey for the ones that say little.

PurchasePay in stock, own choiceSale outside a planSale under a planSays little

The blue line is the daily close over twelve months. Each mark is one insider's trades on one day, on that day's price, sized by dollar value. Solid marks are the stronger signs; hollow and grey marks say little. Hover or tap a mark for who, how much and why.

Trades worth a closer look

A purchase stands out when two or more of these hold: a senior insider, several insiders buying within 90 days, a fall of 10% or more in the three months before, or over $1 million. A sale outside a plan is judged the same way. These are the Feed's rules.

Who traded

dollars, twelve months

8 insiders traded. The most: Foster James C, sale under a plan $43.3M.

One row per insider, sold to the left and bought to the right, split by grade: the paler part of a bar is the part that says little.

How it compares

every company on the site

Open-market sales, twelve months

Open-market purchases, twelve months

    The bar ranks every company on the site from the lowest on the left to the highest on the right, in three equal thirds; the small figures under it are the values where each third starts, and the black tick is the middle company. The orange dot is this company; the grey ticks are the other companies in its industry (hover or tap for names). A hatched block is companies tied at none.

    Every Form 4 line

    Purchase: bought on the open market with their own moneyTook pay in stock, own choice: owed cash, chose shares instead; a softer signSale: sold on the open market, not under a plan set in advanceSale, trading plan: under a Rule 10b5-1 plan set up months before, so the date was fixed in advanceGrey lines: plan purchases, pay in stock taken by the whole board or under a company plan, and units paid in cash; they say little about the insider's own view
    TradedInsiderRoleTypeSharesPriceValueFiling
    22 October 2026Foster James CDirectorSaletrading plan set in advance · Form 144 notice 22 October 202624,042$350.00$8.4 millionForm 4
    21 October 2026Parisotto Shannon MCEVP, Disc & Safety AssessmentSaletrading plan set in advance · Form 144 notice 21 October 20262,156$344.41$742,548Form 4
    5 October 2026Parisotto Shannon MCEVP, Disc & Safety AssessmentSaletrading plan set in advance · Form 144 notice 5 October 2026981$308.44$302,580Form 4
    30 September 2026Coleman GlennEVP & Chief Financial OfficerPlan purchaseemployee stock purchase plan10$297.43$2,974Form 4
    25 August 2026Foster James CDirectorSaletrading plan set in advance · Form 144 notice 25 August 202633,561$300.00$10.1 millionForm 4
    19 August 2026Parisotto Shannon MCEVP, Disc & Safety AssessmentSaletrading plan set in advance · Form 144 notice 19 August 20262,039$294.12$599,711Form 4
    18 August 2026Andrews Nancy CDirectorSaleafter a 83% rise over three months · 3% below its one-year high · Form 144 notice 18 August 2026573$285.24$163,443Form 4
    11 August 2026Girshick BirgitChief Executive OfficerSaletrading plan set in advance · Form 144 notice 11 August 20266,500$279.90$1.8 millionForm 4
    11 August 2026Parisotto Shannon MCEVP, Disc & Safety AssessmentSaletrading plan set in advance · Form 144 notice 11 August 20263,714$279.66$1.0 millionForm 4
    10 August 2026Foster James CDirectorSaletrading plan set in advance · Form 144 notice 10 August 202628,733$275.00$7.9 millionForm 4
    6 August 2026Knell Michael GunnarSVP, Finance and CAOSaleafter a 46% rise over three months · at its one-year high · Form 144 notice 6 August 20261,274$259.07$330,055Form 4
    6 August 2026Knell Michael GunnarSVP, Finance and CAOSaleafter a 46% rise over three months · at its one-year high · Form 144 notice 6 August 2026901$260.63$234,828Form 4
    6 August 2026Knell Michael GunnarSVP, Finance and CAOSaleafter a 46% rise over three months · at its one-year high · Form 144 notice 6 August 2026810$261.45$211,774Form 4
    6 August 2026Knell Michael GunnarSVP, Finance and CAOSaleafter a 46% rise over three months · at its one-year high · Form 144 notice 6 August 2026213$262.37$55,885Form 4
    6 August 2026Knell Michael GunnarSVP, Finance and CAOSaleafter a 46% rise over three months · at its one-year high · Form 144 notice 6 August 2026620$263.94$163,643Form 4
    6 August 2026Knell Michael GunnarSVP, Finance and CAOSaleafter a 46% rise over three months · at its one-year high · Form 144 notice 6 August 2026482$265.17$127,812Form 4
    6 August 2026Knell Michael GunnarSVP, Finance and CAOSaleafter a 46% rise over three months · at its one-year high · Form 144 notice 6 August 2026404$258.53$104,446Form 4
    6 August 2026Knell Michael GunnarSVP, Finance and CAOSaleafter a 46% rise over three months · at its one-year high · Form 144 notice 6 August 20261,205$258.53$311,529Form 4
    6 August 2026Knell Michael GunnarSVP, Finance and CAOSaleafter a 46% rise over three months · at its one-year high · Form 144 notice 6 August 2026736$258.53$190,278Form 4
    6 August 2026Creamer Victoria LEVP & Chief People OfficerSaleafter a 46% rise over three months · at its one-year high · Form 144 notice 6 August 20264,179$259.16$1.1 millionForm 4
    5 August 2026Parisotto Shannon MCEVP, Disc & Safety AssessmentSaletrading plan set in advance · Form 144 notice 5 August 20265,046$263.00$1.3 millionForm 4
    29 June 2026Foster James CDirectorSaletrading plan set in advance · Form 144 notice 29 June 202675,000$225.00$16.9 millionForm 4
    3 March 2026Laplume Joseph WEVP, Corp Strategy & DevelopPurchaseafter a 1% rise over three months · 23% below its one-year high25$174.54$4,364Form 4
    22 August 2025Laplume Joseph WEVP, Corp Strategy & DevelopSaleafter a 18% rise over three months · 27% below its one-year high400$163.72$65,488Form 4
    A filing with several lines appears once per line.
    Read morePay taken in stock by the insider's own choice has the filing's footnote, word for word, in the note under it; for the others, hold the pointer on the type. An award filed at no price shows n/a.