EdgePoint Reports 6.43M Shares, 6.59% Ownership in ATS (Schedule 13G/A)

Rhea-AI Filing Summary

EdgePoint Investment Group Inc. filed an amendment to Schedule 13G reporting beneficial ownership in ATS Corporation common shares. EdgePoint owns 6,434,005 shares, representing 6.59% of the class. Of those shares, EdgePoint has sole voting and dispositive power over 5,560,038 shares and shared voting and dispositive power over 873,967 shares. The filing states the shares are held in the ordinary course of business and not for the purpose of changing or influencing control of ATS.

Positive

• Transparent disclosure of a >5% stake in ATS, meeting SEC reporting requirements
• Clear breakdown of sole versus shared voting and dispositive power for investor clarity
• Certification of passive intent indicating shares are not held to change control

Negative

• None.

Insights

Securities Analyst

TL;DR: EdgePoint reports a passive, >5% stake in ATS, disclosed transparently via Schedule 13G/A.

EdgePoint's 6.59% position exceeds the 5% reporting threshold, triggering this Schedule 13G/A disclosure. The breakdown between sole and shared voting and dispositive power indicates primary control over most shares while retaining some co-managed holdings. Because the filer certifies the stake is held in the ordinary course and not to influence control, this is a passive ownership disclosure rather than an activist move. For investors, the filing increases ownership transparency but does not by itself signal strategic change at ATS.

Corporate Governance Expert

TL;DR: The filing is a standard passive ownership disclosure, important for ownership registers but not a control signal.

Reporting a 6.59% ownership meets SEC disclosure norms and informs stakeholders of a substantial institutional holder. The certification that holdings are not intended to influence control is typical for Schedule 13G filers claiming passive status. Governance implications are limited absent any accompanying Schedule 13D or activist communications; however, sizeable passive stakes can still attract attention from management or other investors seeking alliances or votes on governance matters.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

ATS CORPORATION

(Name of Issuer)

Common shares

(Title of Class of Securities)

00217Y104

(CUSIP Number)

06/30/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 00217Y104

1

Names of Reporting Persons

EdgePoint Investment Group Inc.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

ONTARIO, CANADA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 5,560,038.00
6	Shared Voting Power 873,967.00
7	Sole Dispositive Power 5,560,038.00
8	Shared Dispositive Power 873,967.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

6,434,005.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.59 %

12

Type of Reporting Person (See Instructions)

IA, FI

SCHEDULE 13G

Item 1.
(a)	Name of issuer: ATS CORPORATION
(b)	Address of issuer's principal executive offices: 730 Fountain Street North, Building 3, Cambridge, Ontario N3H 4R7
Item 2.
(a)	Name of person filing: This Schedule 13G is being filed on behalf of EdgePoint Investment Group Inc. ("EdgePoint") with respect to the Common Shares, ("Common Stock") of ATS CORPORATION (the "Issuer"). EdgePoint acts as investment manager to, and exercises investment discretion with respect to the Common Stock directly owned by, a number of private investment funds and mutual fund trusts.
(b)	Address or principal business office or, if none, residence: 150 Bloor Street West, Suite 700, Toronto, Ontario M5S 2X9, Canada
(c)	Citizenship: Ontario, Canada
(d)	Title of class of securities: Common shares
(e)	CUSIP No.: 00217Y104
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
	NA
Item 4.	Ownership
(a)	Amount beneficially owned: 6,434,005
(b)	Percent of class: 6.59%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 5,560,038
	(ii) Shared power to vote or to direct the vote: 873,967
	(iii) Sole power to dispose or to direct the disposition of: 5,560,038
	(iv) Shared power to dispose or to direct the disposition of: 873,967
Item 5.	Ownership of 5 Percent or Less of a Class.
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

EdgePoint Investment Group Inc.

Signature:	Sayuri Childs
Name/Title:	Sayuri Childs | Chief Compliance Officer
Date:	08/14/2025

FAQ

How many ATS (ATS) shares does EdgePoint own?

EdgePoint owns 6,434,005 shares of ATS common stock according to this filing.

What percentage of ATS does EdgePoint hold?

The filing reports EdgePoint holds 6.59% of ATS's outstanding common shares.

How much voting power does EdgePoint have over its ATS shares?

EdgePoint has sole voting power over 5,560,038 shares and shared voting power over 873,967 shares.

Is EdgePoint seeking to influence control of ATS?

No. The filing certifies the securities are held in the ordinary course of business and not for the purpose of changing or influencing control of ATS.

What form was filed to report this ownership?

The ownership is reported on an amended Schedule 13G/A under the Securities Exchange Act of 1934.