HOOPP reports 2.8% stake in Siddhi Acquisition

Healthcare of Ontario Pension Plan Trust Fund (HOOPP) reported beneficial ownership of 775,000 Class A ordinary shares of Siddhi Acquisition Corp, representing 2.8% of the class.

Rhea-AI Filing Summary

Healthcare of Ontario Pension Plan Trust Fund (HOOPP) reported beneficial ownership of 775,000 Class A ordinary shares of Siddhi Acquisition Corp, representing 2.8% of the class. HOOPP has sole voting and dispositive power over these shares, which are ordinary shares with a $0.0001 par value.

The ownership percentage is based on 27,938,000 Class A shares outstanding as of October 31, 2025, as disclosed in Siddhi Acquisition Corp’s Form 10-Q for the quarter ended September 30, 2025. HOOPP states the shares were acquired and are held in the ordinary course of business and not for the purpose of influencing control of the company.

FAQ

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

What stake does Healthcare of Ontario Pension Plan hold in Siddhi Acquisition Corp (SDHI)?

Healthcare of Ontario Pension Plan Trust Fund reports beneficial ownership of 775,000 Class A ordinary shares of Siddhi Acquisition Corp. This position represents 2.8% of the outstanding Class A shares, based on 27,938,000 shares outstanding as of October 31, 2025.

How much of Siddhi Acquisition Corp’s Class A share class is outstanding for SDHI?

The filing cites 27,938,000 Class A ordinary shares of Siddhi Acquisition Corp as issued and outstanding. This figure comes from the company’s Form 10-Q for the quarter ended September 30, 2025, which was filed on October 31, 2025.

Does Healthcare of Ontario Pension Plan control voting for its SDHI shares?

Yes. The filing shows HOOPP has sole voting power over 775,000 shares and no shared voting power. It also has sole dispositive power over the same number of shares, indicating exclusive authority to vote and dispose of this holding.

Is Healthcare of Ontario Pension Plan seeking control of Siddhi Acquisition Corp (SDHI)?

According to the certification, HOOPP states the securities were acquired and are held in the ordinary course of business. It explicitly notes they were not acquired and are not held for the purpose of changing or influencing control of Siddhi Acquisition Corp.

What type of investor is Healthcare of Ontario Pension Plan in relation to SDHI?

Healthcare of Ontario Pension Plan Trust Fund is described as a pension plan formed as a trust under the laws of Ontario, Canada. It is registered with the Financial Services Regulatory Authority of Ontario, and files this report as a non-U.S. institutional investor.

Why was this Schedule 13G/A amendment filed for Siddhi Acquisition Corp?

This amendment updates HOOPP’s beneficial ownership disclosure in Siddhi Acquisition Corp. The filing notes that its original Schedule 13G was inadvertently filed under another company’s EDGAR profile, and this amendment corrects the record for Siddhi Acquisition Corp.

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Accepted by SEC EDGAR 02/13/2026 - 04:00 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Siddhi Acquisition Corp

(Name of Issuer)

Class A ordinary shares, $0.0001 par value

(Title of Class of Securities)

G8118C124

(CUSIP Number)

12/31/2025

(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. G8118C124

1

Names of Reporting Persons

Healthcare of Ontario Pension Plan Trust Fund

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 775,000.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 775,000.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

775,000.00

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)

2.8 %

12

Type of Reporting Person (See Instructions)

FI

Comment for Type of Reporting Person: In reference to Rows 5, 7 and 9 above, amount consists of Class A ordinary shares, $0.0001 par value ("Class A Shares"), of Siddhi Acquisition Corp, a blank check company formed under the laws of the Cayman Islands (the "Issuer"). In reference to Row 11 above, percentage ownership is based on 27,938,000 Class A Shares issued and outstanding as of October 31, 2025, as reported on the Issuer's quarterly report on Form 10-Q for the quarter ended September 30, 2025, filed with the Securities and Exchange Commission on October 31, 2025. The original Schedule 13G reflecting Healthcare of Ontario Pension Plan Trust Fund's ("HOOPP") position in the Issuer was inadvertently filed on Inflection Point Acquisition Corp. III's EDGAR profile on August 13, 2025. This Schedule 13G is intended to amend HOOPP's original Schedule 13G filing made on Inflection Point Acquisition Corp. III's EDGAR profile.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Siddhi Acquisition Corp
(b)	Address of issuer's principal executive offices: 100 Wall Street, 20th Floor, New York, NY 10005
Item 2.
(a)	Name of person filing: Healthcare of Ontario Pension Plan Trust Fund
(b)	Address or principal business office or, if none, residence: 1 York Street, Suite 1900, Toronto, Ontario, Canada, M5J 0B6
(c)	Citizenship: Ontario, Canada
(d)	Title of class of securities: Class A ordinary shares, $0.0001 par value
(e)	CUSIP No.: G8118C124
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).
	A pension plan formed as a trust under the laws of Ontario, Canada and registered with the Financial Services Regulatory Authority of Ontario.
Item 4.	Ownership
(a)	Amount beneficially owned: See Item 9 on page 2.
(b)	Percent of class: See Item 11 on page 2.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: See Item 5 on page 2.
	(ii) Shared power to vote or to direct the vote: See Item 6 on page 2.
	(iii) Sole power to dispose or to direct the disposition of: See Item 7 on page 2.
	(iv) Shared power to dispose or to direct the disposition of: See Item 8 on page 2.
Item 5.	Ownership of 5 Percent or Less of a Class.
	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. By signing below I certify that, to the best of my knowledge and belief, the regulatory scheme applicable to a pension plan formed as a trust under the laws of Ontario, Canada and registered with the Financial Services Regulatory Authority of Ontario is substantially comparable to the regulatory scheme applicable to the functionally equivalent U.S. institution(s). I also undertake to furnish to the Securities and Exchange Commission staff, upon request, information that would otherwise be disclosed in a Schedule 13D.

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.

Healthcare of Ontario Pension Plan Trust Fund

Signature:	/s/ Abas Kanu
Name/Title:	Abas Kanu, VP, HOOPP Compliance Officer
Date:	02/13/2026