Charles River director Foster proposes $8.41M share sale

The notice separately reports 47,738,872 common shares outstanding, distinct from the 24,042 shares proposed for sale.

Rhea-AI Filing Summary

Charles River Laboratories International, Inc. (CRL) director James C. Foster reported a proposed sale of 24,042 common shares through UBS Financial Services, with an aggregate market value of $8,414,700 and an approximate sale date of October 22, 2026. The notice’s securities table lists an exercise of stock options for cash in connection with the proposed shares.

The notice also reports two sales during the prior three months: 33,561 shares for $10,068,300 on August 25, 2026, and 28,733 shares for $7,901,575 on August 10, 2026.

Key Figures

Proposed sale: 24,042 shares Aggregate market value: $8,414,700 Shares outstanding: 47,738,872 shares +4 more

7 metrics

Proposed sale 24,042 shares Common shares; approximate sale date October 22, 2026

Aggregate market value $8,414,700 Proposed sale

Shares outstanding 47,738,872 shares Common shares

Prior-period sale 33,561 shares August 25, 2026

Prior-period sale aggregate market value $10,068,300 August 25, 2026

Prior-period sale 28,733 shares August 10, 2026

Prior-period sale aggregate market value $7,901,575 August 10, 2026

Key Terms

Rule 144, exercise of stock options, attorney-in-fact

3 terms

Rule 144 regulatory

"paragraph (a) of Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

exercise of stock options financial

"Exercise of stock options"

attorney-in-fact regulatory

"as attorney-in-fact for James Foster"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many CRL shares did James C. Foster propose to sell?

James C. Foster, a director of CRL, reported a proposed sale of 24,042 common shares through UBS Financial Services. The notice gives an aggregate market value of $8,414,700 and an approximate sale date of October 22, 2026.

What prior sales does the CRL Form 144 report for James C. Foster?

The notice reports two sales during the prior three months: 33,561 shares for $10,068,300 on August 25, 2026, and 28,733 shares for $7,901,575 on August 10, 2026.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/22/2026 - 04:03 PM EDT Accepted by SEC EDGAR 10/22/2026 - 04:03 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001141722
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
SEC File Number	001-15943
Address of Issuer	251 BALLARDVALE ST WILMINGTON MASSACHUSETTS 01887
Phone	781-222-6000
Name of Person for Whose Account the Securities are To Be Sold	FOSTER JAMES C
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	UBS Financial Services, Inc. Eleven Madison Avenue 4th Floor New York NY 10010	24042	8414700.00	47738872	10/22/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	10/22/2026	Exercise of stock options	Issuer			24042	10/22/2026	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
James Foster 251 BALLARDVALE ST WILMINGTON MA 01887	Common	08/25/2026	33561	10068300.00
James Foster 251 BALLARDVALE ST WILMINGTON MA 01887	Common	08/10/2026	28733	7901575.00

144: Remarks and Signature

Remarks
Date of Notice	10/22/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/06/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ UBS Financial Services Inc, as attorney-in-fact for James Foster
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)