(NASDAQ:PUBM) NEW YORK, Sept. 2, 2025 /PRNewswire/ -- Why: Rosen Law Firm, a global investor rights law firm, announces the filing of a class action lawsuit on behalf of purchasers of securities of PubMatic, Inc. (NASDAQ: PUBM) between February 27, 2025 and August 11, 2025, both dates inclusive (the...