Were any open-market share sales by Shannon M. Parisotto reported for CRL?

No open-market purchases or sales were reported. The filing shows tax-withholding dispositions, where shares cover tax obligations, and an exempt gift transfer to a revocable trust. These events do not reflect discretionary buying or selling in the open market.

CRL executive reports tax withholding and trust transfer

Charles River Laboratories executive Shannon M. Parisotto reported routine share dispositions tied to compensation and estate planning, not open‑market trading.

Filing Impact

(Neutral)

Filing Sentiment

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Form Type

Rhea-AI Filing Summary

Charles River Laboratories executive Shannon M. Parisotto reported routine share dispositions tied to compensation and estate planning, not open‑market trading. On May 26 and 27, 2026, 273 shares of common stock were withheld at prices of $160.30 and $156.73 per share to cover tax obligations, leaving 7,742 shares held directly.

On February 6, 2026, 7,169 shares were transferred as a bona fide gift from Parisotto to a revocable trust controlled by her, and are now reported as indirectly owned. Separate from the trust, she also reports indirect ownership of 28,510 shares through Karpathos Investments LLC.

Insider Trade Summary

14,338 shares gifted

Gift 5 txns

Insider Parisotto Shannon M

Role CEVP, Disc & Safety Assessment

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	105	$156.73	$16K
Exercise Price or Tax Liability	Common Stock	168	$160.30	$27K
Gift	Common Stock	7,169	$0.00	$0.00
Gift	Common Stock	7,169	$0.00	$0.00
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 8,151 shares (Indirect, By Trust); Common Stock — 7,742 shares (Direct); Common Stock — 28,510 shares (Indirect, by Karpathos Investments LLC)

Footnotes (1)

F1. Reflects the exempt transfer pursuant to Rule 16a-13 of 7,169 shares held by the reporting person to a revocable trust controlled by the reporting person.

Key Figures

Tax withholding on May 27, 2026: 105 shares at $156.73 Tax withholding on May 26, 2026: 168 shares at $160.30 Direct holdings after latest transaction: 7,742 shares +5 more

8 metrics

Tax withholding on May 27, 2026 105 shares at $156.73 Common stock withheld to cover tax liability

Tax withholding on May 26, 2026 168 shares at $160.30 Common stock withheld to cover tax liability

Direct holdings after latest transaction 7,742 shares Common stock held directly after May 27, 2026

Bona fide gift transfer 7,169 shares Common stock gifted on February 6, 2026

Trust holdings after gift 8,151 shares Common stock held indirectly by trust after February 6, 2026

Indirect holdings via Karpathos 28,510 shares Common stock held indirectly by Karpathos Investments LLC

Total tax-withholding shares 273 shares Combined May 26 and 27, 2026 dispositions

Total gifted shares 14,338 shares Two 7,169-share bona fide gift entries on February 6, 2026

Key Terms

Payment of exercise price or tax liability by delivering securities, bona fide gift, revocable trust, Rule 16a-13, +1 more

5 terms

Payment of exercise price or tax liability by delivering securities financial

"Transaction code F is described as "Payment of exercise price or tax liability by delivering securities" for these entries."

bona fide gift financial

"Transaction code G is explained as a "Bona fide gift" for the 7,169-share transfers."

A bona fide gift is a genuine, voluntary transfer of money, property, or benefits from one party to another made without expectation of repayment, services, or hidden conditions. Investors care because such gifts can affect company disclosures, related‑party transaction rules, tax treatment, and perceived conflicts of interest; think of it like someone giving you a present with no strings attached — but on a corporate scale, auditors and regulators need to verify it really is unconditional.

revocable trust financial

"Shares were transferred to a revocable trust controlled by the reporting person."

A revocable trust is a legal arrangement where the person who creates it keeps control and can change or cancel the trust at any time, while naming who will manage and receive the assets later. Think of it like a flexible folder for your investments and property that can be relabeled or reworked as circumstances change; it matters to investors because it determines how ownership is recorded, how easily assets transfer on incapacity or death, and whether holdings bypass public probate proceedings.

Rule 16a-13 regulatory

"The exempt transfer of 7,169 shares is described as occurring pursuant to Rule 16a-13."

Karpathos Investments LLC financial

"An indirect holding entry lists shares held "by Karpathos Investments LLC.""

FAQ

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

What insider transactions did CRL executive Shannon M. Parisotto report on this Form 4?

Shannon M. Parisotto reported tax-related share dispositions and internal transfers. A total of 273 shares of common stock were withheld to satisfy tax obligations, and 7,169 shares were transferred as a bona fide gift to a revocable trust that she controls.

How many Charles River Laboratories shares does Shannon M. Parisotto hold directly after these transactions?

After the reported tax-withholding dispositions, Shannon M. Parisotto holds 7,742 shares of Charles River Laboratories common stock directly. This figure comes from the post-transaction ownership line associated with the May 27, 2026 tax-withholding entry in the Form 4.

What is the nature of Shannon M. Parisotto’s indirect ownership in CRL shares?

She reports indirect ownership in two ways. One entry lists 28,510 common shares held through Karpathos Investments LLC. Another reflects 8,151 common shares held by a revocable trust, which received a bona fide gift transfer of 7,169 shares on February 6, 2026.

What does the bona fide gift reported by Shannon M. Parisotto involve for CRL stock?

The bona fide gift involves 7,169 common shares transferred from Shannon M. Parisotto to a revocable trust she controls. The filing describes this as an exempt transfer under Rule 16a-13, moving shares from her direct ownership to indirect ownership via the trust.

At what prices were CRL shares withheld to cover Shannon M. Parisotto’s tax obligations?

Two small tax-withholding dispositions are reported. On May 26, 2026, 168 shares were withheld at $160.30 per share. On May 27, 2026, 105 shares were withheld at $156.73 per share. These transactions satisfy tax liabilities rather than representing open-market trading.

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

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Accepted by SEC EDGAR 05/28/2026 - 04:39 PM EDT

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^*

Parisotto Shannon M

(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)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	CEVP, Disc & Safety Assessment

2a. Foreign Trading Symbol

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

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	02/06/2026		G		7,169⁽¹⁾	D	$0	8,015	D
Common Stock	02/06/2026		G		7,169⁽¹⁾	A	$0	8,151	I	By Trust
Common Stock	05/26/2026		F		168	D	$160.3	7,847	D
Common Stock	05/27/2026		F		105	D	$156.73	7,742	D
Common Stock								28,510	I	by Karpathos Investments LLC

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Reflects the exempt transfer pursuant to Rule 16a-13 of 7,169 shares held by the reporting person to a revocable trust controlled by the reporting person.

	/s/ Shannon M. Parisotto	05/27/2026
	** 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)

Source: View Original Filing on SEC EDGAR