Charles River director granted 422 RSUs

Barg Steven reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Barg Steven reported acquisition or exercise transactions in this Form 4 filing.

Charles River Laboratories director Steven Barg received an equity grant as part of his board compensation. He was awarded 422 shares of Common Stock in the form of restricted stock units at a reference price of $174.79 per share, bringing his direct holdings to 3,287 shares following the grant.

The grant was made in lieu of director service fees for the term beginning on May 5, 2026. These restricted stock units will vest on the earlier of June 2, 2027 or the business day before the company’s next annual meeting of shareholders, making this a routine, compensation-related, non-market transaction.

Insider Trade Summary

Grant/Award: 422 shares

Grant/Award 1 txn

Insider Barg Steven

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	422	$174.79	$74K

Holdings After Transaction: Common Stock — 3,287 shares (Direct)

Footnotes (1)

1. F1. The grant was made in lieu of director service fees for the term commencing May 5, 2026. The restricted stock units vest upon the earlier of 6/2/2027, or the business day prior to the Company's next annual meeting of shareholders.

Key Figures

RSU grant size: 422 shares Reference price: $174.79 per share Post-grant holdings: 3,287 shares +3 more

6 metrics

RSU grant size 422 shares Restricted stock units granted to director Steven Barg

Reference price $174.79 per share Transaction price per share for RSU grant

Post-grant holdings 3,287 shares Total Common Stock directly held after grant

Transaction code A Grant, award, or other acquisition of Common Stock

Grant date June 2, 2026 Transaction date for the RSU award

Vesting date trigger June 2, 2027 Vests earlier of this date or before next annual meeting

Key Terms

restricted stock units, director service fees, annual meeting of shareholders, Common Stock

4 terms

restricted stock units financial

"The restricted stock units vest upon the earlier of 6/2/2027, or the business day prior to the Company's next annual meeting of shareholders."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

director service fees financial

"The grant was made in lieu of director service fees for the term commencing May 5, 2026."

annual meeting of shareholders financial

"The restricted stock units vest upon the earlier of 6/2/2027, or the business day prior to the Company's next annual meeting of shareholders."

A yearly gathering where a company’s owners (shareholders) vote on key items like electing the board, approving executive pay, and ratifying auditors, and receive updates on performance and strategy. Think of it as an annual town hall for owners: it matters to investors because outcomes and disclosures can affect leadership, corporate direction, dividend and governance policies, and therefore the company’s risk and potential return.

Common Stock financial

"security_title: "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

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

What insider transaction did CRL director Steven Barg report on this Form 4?

Director Steven Barg reported receiving 422 restricted stock units of Charles River Laboratories Common Stock. The units were granted as part of his director compensation, rather than as a market purchase, and increase his direct holdings to 3,287 shares after the transaction.

Was the CRL Form 4 transaction a market buy or a compensation grant?

The Form 4 shows a compensation-related grant, not a market purchase. Steven Barg received 422 restricted stock units in lieu of cash director service fees, classified as a grant or award acquisition under transaction code A for Common Stock.

How many CRL shares does Steven Barg hold after this reported grant?

Following the reported equity grant, Steven Barg directly holds 3,287 shares of Charles River Laboratories Common Stock. This figure includes the 422 restricted stock units awarded as director compensation, as disclosed in the Form 4 transaction details.

At what price per share was the CRL restricted stock unit grant valued?

The restricted stock unit grant to Steven Barg was referenced at $174.79 per share. This figure reflects the transaction price per share used in the Form 4 disclosure for the 422 units of Charles River Laboratories Common Stock awarded as compensation.

When do Steven Barg’s CRL restricted stock units vest?

The restricted stock units granted to Steven Barg vest on the earlier of June 2, 2027, or the business day immediately before Charles River Laboratories’ next annual meeting of shareholders, aligning the vesting schedule with his director service term.

Why did CRL grant restricted stock units instead of paying director fees in cash?

The filing states the grant was made in lieu of director service fees for the term beginning May 5, 2026. This means Charles River Laboratories compensated director Steven Barg with equity-based restricted stock units rather than traditional cash fees for that service period.

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

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Accepted by SEC EDGAR 06/03/2026 - 09:45 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Barg Steven

(Last) (First) (Middle)

C/O CHARLES RIVER LABORATORIES

251 BALLARDVALE STREET

(Street)

WILMINGTON MASSACHUSETTS 01887

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
CHARLES RIVER LABORATORIES INTERNATIONAL, INC. [ CRL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/02/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/02/2026		A		422(1)	A	$174.79	3,287	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The grant was made in lieu of director service fees for the term commencing May 5, 2026. The restricted stock units vest upon the earlier of 6/2/2027, or the business day prior to the Company's next annual meeting of shareholders.

	/s/ Steven Barg	06/03/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)