Celestica director reports RSU vesting and grant

Celestica Inc. director Robert Cascella reported routine equity compensation activity tied to restricted share units (RSUs).

Rhea-AI Filing Summary

Celestica Inc. director Robert Cascella reported routine equity compensation activity tied to restricted share units (RSUs). On March 31, 2026, he exercised 156 RSUs into the same number of common shares and received a new grant of 150 RSUs that vest in three annual installments starting on the grant anniversary. To cover tax obligations from the RSU vesting, 9 common shares were withheld at $257.27 per share, leaving him with 147 common shares directly held. After the transactions, he continues to hold 312 RSUs from a prior 468-unit grant in addition to the new 150-unit RSU award.

Insider Trade Summary

156 shares exercised/converted

Exercise 4 txns

Insider CASCELLA ROBERT

Role Director

Type	Security	Shares	Price	Value
Exercise	Restricted Share Units	156	$0.00	$0.00
Grant/Award	Restricted Share Units	150	$0.00	$0.00
Exercise	Common Shares	156	$0.00	$0.00
Exercise Price or Tax Liability	Common Shares	9	$257.27	$2K

Holdings After Transaction: Restricted Share Units — 462 contracts (Direct); Common Shares — 147 shares (Direct)

Footnotes (4)

1. F1. Shares withheld to satisfy tax withholding obligations arising out of the vesting of restricted share units ("RSUs").
2. F2. Each RSU represents a contingent right to receive one common share or an equivalent value in cash at the holder's election.
3. F3. On March 31, 2025, the reporting person was granted 468 RSUs, 1/3 of which vest annually over 3 years on the anniversary of the grant date.
4. F4. On March 31, 2026, the reporting person was granted 150 RSUs, 1/3 of which vest annually over 3 years on the anniversary of the grant date.

Key Figures

RSUs exercised: 156 units New RSU grant: 150 units Tax withholding shares: 9 shares at $257.27 +3 more

6 metrics

RSUs exercised 156 units Exercised into 156 common shares on March 31, 2026

New RSU grant 150 units Granted on March 31, 2026; vests one-third annually over 3 years

Tax withholding shares 9 shares at $257.27 Common shares withheld to satisfy RSU-related tax obligations

Common shares held 147 shares Direct common share holdings after tax-withholding disposition

Unvested RSUs from prior grant 312 units Remaining from 468-unit March 31, 2025 RSU grant after 156 vested

Original 2025 RSU grant 468 units Granted March 31, 2025; vests one-third annually over 3 years

Key Terms

Restricted Share Units, tax withholding obligations, contingent right, vest annually, +1 more

5 terms

Restricted Share Units financial

"Shares withheld to satisfy tax withholding obligations arising out of the vesting of restricted share units ("RSUs")."

Restricted share units (RSUs) are a promise from a company to give an employee or service provider actual shares or cash equal to the shares after certain conditions are met, typically staying with the company for a set time or hitting performance targets. Think of them like a time-locked gift card that becomes usable only after you’ve earned it. For investors, RSUs matter because they align employee incentives with company performance and can increase the number of shares outstanding over time, diluting existing ownership and affecting earnings per share.

tax withholding obligations financial

"Shares withheld to satisfy tax withholding obligations arising out of the vesting of restricted share units"

contingent right financial

"Each RSU represents a contingent right to receive one common share or an equivalent value in cash"

vest annually financial

"1/3 of which vest annually over 3 years on the anniversary of the grant date."

grant, award, or other acquisition financial

"Grant, award, or other acquisition"

FAQ

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

What equity transactions did Celestica (CLS) director Robert Cascella report?

Robert Cascella reported RSU-related equity activity. He exercised 156 restricted share units into common shares, received a new grant of 150 RSUs, and had 9 common shares withheld to satisfy tax obligations arising from the RSU vesting.

How many Celestica (CLS) restricted share units did Cascella exercise and what did he receive?

He exercised 156 restricted share units, receiving 156 Celestica common shares. Each RSU represents a contingent right to receive one common share or cash of equal value at the holder’s election, so the vesting converted those RSUs into regular equity.

What new RSU grant did Celestica (CLS) award to director Robert Cascella?

On March 31, 2026, Cascella was granted 150 new restricted share units. One-third of this 150-unit award vests annually over three years on each anniversary of the grant date, aligning his compensation with longer-term company performance.

Why were some Celestica (CLS) shares disposed of in Cascella’s Form 4 filing?

Nine common shares were disposed of solely to satisfy tax withholding obligations from RSU vesting. This disposition, reported with transaction code F, represents shares delivered for taxes rather than an open-market sale or discretionary reduction of his investment.

What are Cascella’s Celestica (CLS) holdings after these RSU transactions?

After the transactions, Cascella directly holds 147 Celestica common shares. He also continues to hold 312 RSUs from a prior 468-unit grant and has a new 150-unit RSU award, which will vest in three equal annual installments over time.

How do Celestica (CLS) restricted share units work for Robert Cascella?

Each restricted share unit represents a contingent right to receive one common share or an equivalent cash amount. Units vest over time, such as one-third annually, and upon vesting can convert into common shares or cash, subject to tax withholding obligations.

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

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Accepted by SEC EDGAR 04/02/2026 - 04:20 PM 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^*

CASCELLA ROBERT

(Last) (First) (Middle)

5140 YONGE STREET

SUITE 1900

(Street)

TORONTO ONTARIO, CANADA M2N 6L7

(City) (State) (Zip)

ONTARIO, CANADA

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/31/2026

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 Shares	03/31/2026		M		156	A	$0	156	D
Common Shares	03/31/2026		F		9(1)	D	$257.27	147	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
Restricted Share Units	(2)	03/31/2026		M			156	(3)	(3)	Common Shares	156	$0	312	D
Restricted Share Units	(2)	03/31/2026		A		150		(4)	(4)	Common Shares	150	$0	150	D

Explanation of Responses:

1. Shares withheld to satisfy tax withholding obligations arising out of the vesting of restricted share units ("RSUs").

2. Each RSU represents a contingent right to receive one common share or an equivalent value in cash at the holder's election.

3. On March 31, 2025, the reporting person was granted 468 RSUs, 1/3 of which vest annually over 3 years on the anniversary of the grant date.

4. On March 31, 2026, the reporting person was granted 150 RSUs, 1/3 of which vest annually over 3 years on the anniversary of the grant date.

	/s/ Tracy Connelly McGilley, attorney-in-fact	04/02/2026
	** 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)