SC 13G 1 AltairEngineering2023.txt UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. __)* Altair Engineering Inc (Name of Issuer) CLASS A (Title of Class of Securities) 021369103 (CUSIP Number) 12/29/2023 (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) * The remainder of this cover page shall be filled out for a* reporting person?s initial filing on this form with respect to the subject class of securities, and* for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in 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). CUSIP No. 021369103 1 NAMES OF REPORTING PERSONS Pictet Asset Management SA The reporting person disclaim beneficial ownership of the shares reported, which are owned of record and beneficially by Pictet Asset Management SA. 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 Switzerland 5 SOLE VOTING POWER NUMBER OF 2'900'970.00 SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY 0 EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 2'900'970.00 WITH: 8 SHARED DISPOSITIVE POWER 0 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2'900'970.00 10 CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) ? 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 5.3% 12 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) Investment Advisor Item 1(a) Name of issuer: Altair Engineering Inc Item 1(b) Address of issuer's principal executive offices: 1820 East Big Beaver Road, Troy, MI, 48083, United States 2(a) Name of person filing: Pictet Asset Management SA 2(b) Address or principal business office or, if none, residence: 60 Route des Acacias 1211 Geneva 73 Switzerland 2(c) Citizenship: Switzerland 2(d) Title of class of securities: Class A 2(e) CUSIP No.: 021369103 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) [X] 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); (k) [ ] Group, in accordance with 240.13d?1(b)(1)(ii)(K). If filing as a non-U.S. institution in accordance with 240.13d?1(b)(1)(ii)(J), please specify the type of institution: ____ Item 4. Ownership Provide the following information regarding the aggregate* number and percentage of the class of securities of the issuer identified in Item 1. (a) Amount beneficially owned: 2,900,970.00 (b) Percent of class: 5.3% (c) Number of shares as to which the person has: (i) Sole power to vote or to direct the vote : 2,900,970.00 (ii) Shared power to vote or to direct the vote : 0 (iii) Sole power to dispose or to direct the disposition of : 2,900,970.00 (iv) Shared power to dispose or to direct the disposition of: 0 Instruction. For computations regarding securities which* represent a right to acquire an underlying security see 240.13d?3(d)(1). Item 5. Ownership of 5 Percent or Less of a Class. If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be* the beneficial owner of more than 5 percent of the class of securities, check the following [X]. Instruction. Dissolution of a group requires a response to this item. Item 6. Ownership of More than 5 Percent on Behalf of* Another Person. If any other person is known to have the right to receive or the power to direct the* receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be* included in response to this item and, if such interest relates to more than 5 percent of the class, such person* should be identified. A listing of the shareholders of an investment company registered under the Investment* Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. Item 7. Identification and Classification of the Subsidiary* Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.* If a parent holding company or control person has filed this schedule pursuant to Rule 13d?1(b)(1)(ii)(G),* so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant* subsidiary. If a parent holding company or control person has filed this schedule pursuant to Rule 13d?1(c)* or Rule 13d?1(d), attach an exhibit stating the identification of the relevant subsidiary. Item 8. Identification and Classification of Members of the Group If a group has filed this schedule pursuant to 240.13d?1(b)(1)(ii)(J),* so indicate under Item 3(j) and attach an exhibit stating the identity and Item 3 classification* of each member of the group. If a group has filed this schedule pursuant to Rule 13d?1(c) or Rule 13d?1(d),* attach an exhibit stating the identity of each member of the group. Item 9. Notice of Dissolution of Group. Notice of dissolution* of a group may be furnished as an exhibit stating the date of the dissolution and that all further* filings with respect to transactions in the security reported on will be filed, if required, by members of the* group, in their individual capacity. See Item 5. Item 10. Certifications (a) The following certification shall be included if the* statement is filed pursuant to 240.13d?1(b): 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. (b) The following certification shall be included if the* statement is filed pursuant to 240.13d? 1(b)(1)(ii)(J), or if the statement is filed pursuant to* 240.13d?1(b)(1)(ii)(K) and a member of the group is a non-U.S. institution eligible to file pursuant to 240.13d?1(b)(1)(ii)(J): By signing below I certify that, to the best of my knowledge* and belief, the foreign regulatory scheme applicable to [insert particular category of institutional investor]* is substantially comparable to the regulatory scheme applicable to the functionally equivalent* U.S. institution(s). I also undertake to furnish to the Commission staff, upon request, information that would* otherwise be disclosed in a Schedule 13D. (c) The following certification shall be included if the* statement is filed pursuant to 240.13d?1(c): 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. Date: 26th January 2024 By: /s/ Mathieu CORNU Name: Mathieu CORNU Title: Head of Business Controlling By: /s/ Youssef SAADI Name: Youssef SAADI Title: Head of Investment Compliance

SEC Form SC 13G filed by Altair Engineering Inc.