Director Luis Muller receives 37 RSUs at Celestica (NYSE: CLS)

Rhea-AI Filing Summary

Celestica director Luis A. Muller reported an equity award of 37 restricted share units (RSUs) on January 28, 2026. Each RSU represents a right to receive one common share or an equivalent cash amount, and these RSUs vest upon his retirement on that same date.

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

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X

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^*

Muller Luis A

(Last) (First) (Middle)

5140 YONGE STREET

SUITE 1900

(Street)

TORONTO A6 M2N 6L7

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
CELESTICA INC [ CLS ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
01/28/2026

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

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

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

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

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
Restricted Share Units	(1)	01/28/2026		A		37		(2)	(2)	Common Shares	37	$0	37	D

Explanation of Responses:

1. Each restricted share unit ("RSU") represents a contingent right to receive one common share or an equivalent value in cash.

2. On January 28, 2026, the reporting person was granted 37 RSUs, which vest upon the reporting person's retirement on January 28, 2026.

	/s/ Tracy Connelly McGilley, attorney-in-fact	01/28/2026
	** 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.

FAQ

What insider transaction did Celestica (CLS) director Luis A. Muller report?

Luis A. Muller reported receiving an equity award of 37 restricted share units (RSUs) from Celestica. The Form 4 shows these as a direct beneficial holding, reflecting a compensation-related grant rather than an open-market purchase or sale of the company’s common shares.

When were the 37 RSUs granted to Celestica (CLS) director Luis A. Muller?

The 37 restricted share units were granted to Luis A. Muller on January 28, 2026. This grant date matches the earliest transaction date disclosed and marks when the compensation award was formally made and recorded for reporting purposes under insider trading rules.

How do the RSUs reported by Luis A. Muller in Celestica (CLS) work?

Each reported RSU represents a contingent right to receive one Celestica common share or an equivalent cash value. This means the award does not immediately deliver shares, but can settle in stock or cash once the vesting conditions set by the company are satisfied.

What is the vesting condition for Luis A. Muller’s 37 RSUs at Celestica (CLS)?

The 37 RSUs granted to Luis A. Muller vest upon his retirement on January 28, 2026. Vesting upon retirement ties the award directly to his continued board service up to that date, aligning compensation with his tenure as a director.

How many derivative securities does Luis A. Muller hold after this Celestica (CLS) transaction?

Following the reported transaction, Luis A. Muller beneficially owns 37 derivative securities in the form of RSUs. The filing indicates these are held with direct ownership, reflecting his personal entitlement under Celestica’s equity compensation arrangements for directors.

Did Celestica (CLS) director Luis A. Muller buy or sell common shares in this Form 4?

The Form 4 reports an award of restricted share units, not a purchase or sale of common shares on the open market. It records a compensation grant of 37 RSUs that may later settle in shares or cash upon the specified vesting condition.