SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 6)

Aspen Technology, Inc.

(Name of Issuer)

Common Stock, par value $0.01 per share

(Title of Class of Securities)

29109X106

(CUSIP Number)

Michael Tang
8027 Forsyth Boulevard,
St. Louis, MO, 63105
314-553-2000

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

03/12/2025

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. Checkbox not checked

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

SCHEDULE 13D

CUSIP No.

29109X106

Name of reporting person

EMERSON ELECTRIC CO

Check the appropriate box if a member of a Group (See Instructions)

(a)

(b)

SEC use only

Source of funds (See Instructions)

WC, OO

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

Checkbox not checked

Citizenship or place of organization

MISSOURI

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 100.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 100.00

Aggregate amount beneficially owned by each reporting person

100.00

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in Row (11)

100 %

Type of Reporting Person (See Instructions)

SCHEDULE 13D

CUSIP No.

29109X106

Name of reporting person

EMR HOLDINGS, INC.

Check the appropriate box if a member of a Group (See Instructions)

(a)

(b)

SEC use only

Source of funds (See Instructions)

WC, OO

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

Checkbox not checked

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 100.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 100.00

Aggregate amount beneficially owned by each reporting person

100.00

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in Row (11)

100 %

Type of Reporting Person (See Instructions)

SCHEDULE 13D

CUSIP No.

29109X106

Name of reporting person

EMR WORLDWIDE INC.

Check the appropriate box if a member of a Group (See Instructions)

(a)

(b)

SEC use only

Source of funds (See Instructions)

WC, OO

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

Checkbox not checked

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 100.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 100.00
10	Shared Dispositive Power 0.00

Aggregate amount beneficially owned by each reporting person

100.00

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in Row (11)

100 %

Type of Reporting Person (See Instructions)

SCHEDULE 13D

Item 1.

Security and Issuer

(a)

Title of Class of Securities:

Common Stock, par value $0.01 per share

(b)

Name of Issuer:

Aspen Technology, Inc.

(c)

Address of Issuer's Principal Executive Offices:

20 CROSBY DRIVE, BEDFORD, MASSACHUSETTS , 01730.

Item 1 Comment:

Explanatory Note: This Amendment No. 6 (this "Amendment No. 6") amends the Schedule 13D (the "Original Filing") filed with the U.S. Securities and Exchange Commission (the "Commission") on May 26, 2022, as amended by Amendment No. 1, filed on October 11, 2023 ("Amendment No. 1"), Amendment No. 2, filed on October 13, 2023 ("Amendment No. 2"), Amendment No. 3, filed on November 5, 2024 ("Amendment No. 3"), Amendment No. 4, filed on January 27, 2025 ("Amendment No. 4") and Amendment No. 5, filed on March 5, 2025 ("Amendment No. 5" and, together with the Original Filing, Amendment No. 1, Amendment No. 2, Amendment No. 3 and Amendment No. 4, the "Schedule 13D"), and is made pursuant to Rule 13d-1(a) of the Act. The Schedule 13D is hereby amended and supplemented as detailed below, and, except as amended and supplemented hereby, the Schedule 13D remains in full force and effect. All capitalized terms not otherwise defined herein shall have the meaning ascribed to such terms in the Schedule 13D.

Item 4.

Purpose of Transaction

Item 4 of the Schedule 13D is hereby amended and supplemented by adding the following paragraphs at the end of Item 4: As previously disclosed, on January 26, 2025, Emerson Electric Co., a Missouri corporation ("Parent" or "Emerson") entered into an Agreement and Plan of Merger (the "Merger Agreement"), among Parent, Aspen Technology, Inc., a Delaware corporation ("Issuer") and Emersub CXV, Inc., a Delaware corporation and a wholly owned subsidiary of Parent ("Purchaser"). In accordance with the terms of the Merger Agreement, on March 12, 2025, Parent completed the acquisition of Issuer. Pursuant to the Merger Agreement, and upon the terms and subject to the conditions thereof, on February 10, 2025, Purchaser commenced a tender offer (the "Offer"), to purchase all of the issued and outstanding shares (the "Shares") of common stock, par value $0.0001 per share, of Issuer (other than Shares held by Issuer, Parent, Purchaser or any of their respective wholly owned subsidiaries) at a price of $265 per Share (the "Offer Price"), net to the seller in cash, without interest, and subject to any required withholding of taxes. The Offer expired at 5:00 p.m., Eastern Time, on March 11, 2025. According to Equiniti Trust Company, LLC, the depository for the Offer, 19,479,909 Shares were validly tendered and not validly withdrawn in the Offer (including 1,859,751 Shares tendered in the Offer that have not yet been "received" by the "depository" (as such terms are defined in Section 251(h)(6) of the General Corporation Law of the State of Delaware (the "DGCL"))), representing approximately 72% of the outstanding Shares, excluding, for the purposes of calculating the total number of Shares outstanding, Shares owned by Parent and its subsidiaries, Parent's and its subsidiaries' directors and officers and Issuer's directors and officers. The number of Shares tendered satisfied the condition to the Offer that there be validly tendered and not validly withdrawn Shares (excluding (1) Shares tendered in the Offer that have not yet been "received" by the "depository" (as such terms are defined in Section 251(h)(6) of the DGCL) and (2) Shares owned by Parent and its subsidiaries, Parent's and its subsidiaries' directors and officers and Issuer's directors and officers), that represent at least one more Share than 50% of the total number of Shares outstanding at the time of the expiration of the Offer, excluding, for the purposes of calculating the total number of Shares outstanding, Shares owned by Parent and its subsidiaries, Parent's and its subsidiaries' directors and officers and Issuer's directors and officers. All conditions to the Offer having been satisfied or waived, Parent and Purchaser accepted for payment all Shares validly tendered and not validly withdrawn. Following the consummation of the Offer, the remaining conditions to the Merger set forth in the Merger Agreement were satisfied or waived, and on March 12, 2025, Purchaser merged with and into Issuer pursuant to Section 251(h) of the DGCL, with Issuer being the surviving corporation (the "Merger"). Each Share outstanding immediately prior to the effective time of the Merger (other than (1) the Shares held by Issuer, Parent, Purchaser or any of their respective wholly owned subsidiaries, (2) Shares irrevocably accepted by Purchaser for purchase pursuant to the Offer and (3) Shares held by stockholders who have properly exercised and perfected their demands for appraisal of such Shares in accordance with the DGCL and have neither withdrawn nor lost such rights prior to the effective time of the Merger) was canceled and converted into the right to receive an amount in cash equal to the Offer Price, net to the seller in cash, without interest, and subject to any required withholding of taxes.

Item 5.

Interest in Securities of the Issuer

(a)

Item 5(a) is hereby amended and restated in its entirety as follows: The Reporting Persons beneficially own 100 shares of the common stock, $0.01 par value per share ("Common Stock"), of Issuer, or 100% of Issuer's outstanding Common Stock.

(b)

Item 5(b) is hereby amended and restated in its entirety as follows: Emerson Sub directly holds 100 shares of Common Stock and, as such, is deemed to have sole voting power and sole dispositive power with respect to 100 shares of Common Stock. Emerson Sub is a subsidiary of EMR Holdings and EMR Holdings is a direct, wholly owned subsidiary of Emerson and as such, each of EMR Holdings and Emerson is deemed to have shared voting power and shared dispositive power with respect to the 100 shares of Common Stock held directly by Emerson Sub.

(c)

Item 5(c) is hereby amended and restated in its entirety as follows: The description of the Offer and the Merger set forth in Item 4 is hereby incorporated by reference.

(d)

Item 5(d) is hereby amended and restated in its entirety as follows: Not applicable.

(e)

Not applicable.

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.

EMERSON ELECTRIC CO

Signature:	/s/ John A. Sperino
Name/Title:	John A. Sperino/Vice President and Assistant Secretary
Date:	03/12/2025

EMR HOLDINGS, INC.

Signature:	/s/ John A. Sperino
Name/Title:	John A. Sperino/Vice President and Secretary
Date:	03/12/2025

EMR WORLDWIDE INC.

Signature:	/s/ John A. Sperino
Name/Title:	John A. Sperino/President and Secretary
Date:	03/12/2025

Amendment: SEC Form SCHEDULE 13D/A filed by Aspen Technology Inc.