Celestica CFO sells 883 shares under trading plan

Celestica Inc Chief Financial Officer Mandeep Chawla reported selling 883 Common Shares of Celestica on July 31, 2026, in nine non-derivative transactions reported as sales in open market or private transactions.

Rhea-AI Filing Summary

Celestica Inc Chief Financial Officer Mandeep Chawla reported selling 883 Common Shares of Celestica on July 31, 2026, in nine non-derivative transactions reported as sales in open market or private transactions. Per‑share prices ranged from $360.0000 to $374.0300. All sales were effected under a Rule 10b5-1 trading plan adopted on March 13, 2026, with several trades reported using weighted average prices over specified intra-day ranges.

Insider Trade Summary 10b5-1

Net Seller: 883 shares

Net Sell 9 txns

Insider Chawla Mandeep

Role Chief Financial Officer

Sold 883 shs ($324K)

Type	Security	Shares	Price	Value
Sale	Common Shares F1	83	$360.00	$30K
Sale	Common Shares F1, F2	160	$362.58	$58K
Sale	Common Shares F1, F3	80	$364.63	$29K
Sale	Common Shares F1, F4	160	$366.01	$59K
Sale	Common Shares F1, F5	120	$367.60	$44K
Sale	Common Shares F1	40	$368.90	$15K
Sale	Common Shares F1, F6	80	$370.00	$30K
Sale	Common Shares F1, F7	120	$371.51	$45K
Sale	Common Shares F1	40	$374.03	$15K

Holdings After Transaction: Common Shares — 81,561 shares (Direct)

Footnotes (7)

1. F1. This transaction was effected pursuant to a Rule 10b5-1 plan adopted by the reporting person on March 13, 2026.
2. F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $362.38-$362.95, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
3. F3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $364.47-$364.80, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
4. F4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $365.77-$366.59, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
5. F5. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $367.39-$368.02, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
6. F6. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $369.92-$370.08, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
7. F7. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $371.06-$372.01, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Key Figures

Common shares sold: 883 shares Number of sale transactions: 9 transactions Lowest reported sale price: $360.0000 per share +3 more

6 metrics

Common shares sold 883 shares Total non-derivative Common Shares sold by the CFO on 2026-07-31

Number of sale transactions 9 transactions Total count of non-derivative sale transactions reported for 2026-07-31

Lowest reported sale price $360.0000 per share Per-share price on one Common Share sale transaction dated 2026-07-31

Highest reported sale price $374.0300 per share Per-share price on one Common Share sale transaction dated 2026-07-31

Rule 10b5-1 plan adoption date March 13, 2026 Adoption date of the trading plan under which the CFO’s sales were effected

Net buy/sell shares -883 shares Net effect of reported non-derivative transactions, all sales, on 2026-07-31

Key Terms

Rule 10b5-1 plan, weighted average price, open market or private transaction

3 terms

Rule 10b5-1 plan regulatory

"This transaction was effected pursuant to a Rule 10b5-1 plan adopted by the reporting person"

A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.

weighted average price financial

"The price reported in Column 4 is a weighted average price. These shares were sold"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

open market or private transaction financial

"transaction_code_description: Sale in open market or private transaction"

FAQ

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

What insider transaction did Celestica (CLS) report for CFO Mandeep Chawla?

Celestica reported that CFO Mandeep Chawla sold 883 Common Shares on July 31, 2026. The sales were non-derivative transactions in Common Shares, reported as sales in open market or private transactions under a pre-arranged Rule 10b5-1 trading plan.

How many Celestica (CLS) shares did the CFO sell and at what prices?

The CFO sold 883 Common Shares of Celestica in nine separate transactions. Reported per-share sale prices ranged from $360.0000 to $374.0300, with several trades disclosed at weighted average prices over specified intraday price ranges in the related footnotes.

Were the Celestica (CLS) CFO’s share sales made under a Rule 10b5-1 plan?

Yes. The filing states each transaction was effected under a Rule 10b5-1 plan adopted by the CFO on March 13, 2026. This indicates the trades were executed according to a pre-established trading schedule rather than at purely discretionary times.

What type of security did the Celestica (CLS) CFO sell on July 31, 2026?

All reported transactions involve Common Shares of Celestica Inc. The Form 4 lists nine non-derivative sale transactions in Common Shares, each coded as a sale ("S") and reported as either open market or private transactions executed on July 31, 2026.

How many individual sale transactions did the Celestica (CLS) CFO execute?

The Form 4 shows nine separate non-derivative sale transactions. These include varying block sizes, such as 160-share, 120-share, 80-share, 83-share, and 40-share sales, all executed on July 31, 2026, and summarized as 883 total shares sold.

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

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Available on EDGAR 08/03/2026 - 06:17 PM Accepted by SEC EDGAR 08/03/2026 - 06:16 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).

X

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^*

Chawla Mandeep

(Last) (First) (Middle)

5140 YONGE STREET

SUITE 1900

(Street)

TORONTO 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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/31/2026

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	07/31/2026		S(1)		83	D	$360	82,361	D
Common Shares	07/31/2026		S(1)		160	D	$362.58(2)	82,201	D
Common Shares	07/31/2026		S(1)		80	D	$364.63(3)	82,121	D
Common Shares	07/31/2026		S(1)		160	D	$366.01(4)	81,961	D
Common Shares	07/31/2026		S(1)		120	D	$367.6(5)	81,841	D
Common Shares	07/31/2026		S(1)		40	D	$368.9	81,801	D
Common Shares	07/31/2026		S(1)		80	D	$370(6)	81,721	D
Common Shares	07/31/2026		S(1)		120	D	$371.51(7)	81,601	D
Common Shares	07/31/2026		S(1)		40	D	$374.03	81,561	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. This transaction was effected pursuant to a Rule 10b5-1 plan adopted by the reporting person on March 13, 2026.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $362.38-$362.95, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $364.47-$364.80, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $365.77-$366.59, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

5. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $367.39-$368.02, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

6. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $369.92-$370.08, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

7. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $371.06-$372.01, inclusive. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

	/s/ Tracy Connelly McGilley, attorney-in-fact	08/03/2026
	** 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)