X0609 4 2026-06-01 true 0001489096 Thermon Group Holdings, Inc. THR 0001163373 FIX ROGER L false 7171 SOUTHWEST PARKWAY BUILDING 300, SUITE 200 AUSTIN TX 78735 true false false false false Common Stock 2026-06-01 4 D false 35375 D 0 D Pursuant to the terms of the Agreement and Plan of Merger dated February 23, 2026 (the "Merger Agreement") by and among the Issuer, CECO Environmental Corp ("CECO"), and two wholly-owned merger subsidiaries of CECO (the "Merger Subs"), the Issuer merged with the two Merger Subs to become a wholly-owned subsidiary of CECO (the "Merger"). Pursuant to the terms of the Merger Agreement, each share of Issuer common stock (other than excluded and dissenting shares) was converted into the right to receive, at the election of the holder, one of the following forms of merger consideration, subject to proration as described in the Merger Agreement: (i) 0.6840 shares of CECO common stock and $10.00 in cash, without interest (the "mixed consideration"), which is the default election; (ii) $63.89 in cash, without interest (the "cash consideration"); or (iii) 0.8110 shares of CECO common stock (the "stock consideration"). The reporting person elected the mixed consideration for their shares of Issuer common stock. /s/ Ryan Tarkington, Attorney-in-Fact 2026-06-03