Filing Details

U.S. SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1) PubMatic Inc. ------------------------------------------------ (Name of Issuer) Common Shares ------------------------------------------------ (Title of Class of Securities) 74467Q103 ------------------------------------------------ (CUSIP Number) December 31, 2021 ------------------------------------------------ (Date of Event Which Requires Filing of this Statement)Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [X] 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 disclosures provided in a prior cover page. 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). CUSIP No. 74467Q103 1) Names of Reporting Persons I.R.S. Identification Nos. of Above Persons (Entities Only) Fiera Capital Corporation 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 Canada Number of Shares Beneficially Owned by Each Reporting Person With: 5) Sole Voting Power 3,018 6) Shared Voting Power 1,420,983 7) Sole Dispositive Power 3,018 8) Shared Dispositive Power 1,420,983 9) Aggregate Amount Beneficially Owned by Each Reporting Person 1,424,001 10) Check If the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] 11) Percent of Class Represented by Amount in Row (9) 5.17% 12) Type of Reporting Person (See Instructions) FI Item 1. (a) Name of Issuer: PubMatic Inc. (b) Address of Issuer's Principal Executive Offices: 3 Lagoon Drive Suite 180 Redwood City, CA 94065 United States Item 2. (a) Name of Person Filing: Fiera Capital Corporation (b) Address of Principal Business Office or, if none, Residence: 1981 McGill College Avenue, Suite 1500 Montreal, Quebec, Canada, H3A 0H5 (c) Citizenship: Canada (d) Title of Class of Securities: Common Shares (e) CUSIP Number: 74467Q103 Item 3. If this statement is being filed pursuant to Rule 13d-1(b), or 13d-2(b) or (c), check whether the person filing is: (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) [X] 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: equivalent to an investment advisor. [ ] If this statement is filed pursuant to 13d 1(c), check this box Item 4. Ownership: (a) Amount Beneficially Owned: 1,424,001 (b) Percent of Class: 5.17% (c) Number of Shares as to which such person has: (i) Sole power to vote or direct the vote: 3,018 (ii) Shared power to vote or direct the vote: 1,420,983 (iii) Sole power to dispose or direct the disposition of: 3,018 (iv) Shared power to dispose or direct the disposition of: 1,420,983 Item 5. Ownership of Five 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 five percent of the class of securities check the following [ ] Item 6. Ownership of More than Five Percent on Behalf of Another Person: Fiera Capital Corporation and its wholly-owned affiliates act as an investment adviser on behalf of clients who are known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the Common Shares of PubMatic Inc. Other than Fiera Capital Corporation and its wholly-owned affiliates, no one other person's interest in the Common Shares of PubMatic Inc. is more than five percent of the total outstanding Common Shares. Item 7. Identification and Classification of the Subsidiary which Acquired the Security Being Reported on By the Parent Holding Company n/a Item 8. Identification and Classification of Members of the Group n/a Item 9. Notice of Dissolution of Group n/a Item 10. Certification By signing below I certify that, to the best of my knowledge and belief, the securities referred to above 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.