X0202 SCHEDULE 13G 0001167212 XXXXXXXX LIVE Common Stock, par value $0.001 per share 04/27/2026 0002101698 Elmet Group Co. 289395105 2 PORTLAND FISH PIER SUITE 214 PORTLAND ME 04101 Rule 13d-1(c) NEEDHAM INVESTMENT MANAGEMENT LLC b DE 0.00 2208016.00 0.00 2208016.00 2208016.00 N 7.3 IA OO NEEDHAM ASSET MANAGEMENT, LLC b DE 0.00 2208016.00 0.00 2208016.00 2208016.00 N 7.3 HC OO NEEDHAM AGGRESSIVE GROWTH FUND b DE 0.00 1684800.00 0.00 1684800.00 1684800.00 N 5.6 IV OO Elmet Group Co. 2 PORTLAND FISH PIER, SUITE 214, PORTLAND, ME 04101 Needham Investment Management L.L.C. Needham Asset Management, LLC Needham Aggressive Growth Fund Needham Investment Management L.L.C. 250 Park Avenue, 10th Floor New York, New York 10117-1099 United States of America Needham Asset Management, LLC c/o Needham Investment Management L.L.C. 250 Park Avenue, 10th Floor New York, New York 10117-1099 United States of America Needham Aggressive Growth Fund c/o Needham Investment Management L.L.C. 250 Park Avenue, 10th Floor New York, New York 10117-1099 United States of America Needham Investment Management L.L.C. - Delaware Needham Asset Management, LLC - Delaware Needham Aggressive Growth Fund - Delaware Y Needham Investment Management L.L.C. - 2,208,016 Needham Asset Management, LLC - 2,208,016 Needham Aggressive Growth Fund - 1,684,800 Needham Investment Management L.L.C. - 7.3% Needham Asset Management, LLC - 7.3% Needham Aggressive Growth Fund - 5.6% Needham Investment Management L.L.C. - 0 Needham Asset Management, LLC - 0 Needham Aggressive Growth Fund - 0 Needham Investment Management L.L.C. - 2,208,016 Needham Asset Management, LLC - 2,208,016 Needham Aggressive Growth Fund - 1,684,800 Needham Investment Management L.L.C. - 0 Needham Asset Management, LLC - 0 Needham Aggressive Growth Fund - 0 Needham Investment Management L.L.C. - 2,208,016 Needham Asset Management, LLC - 2,208,016 Needham Aggressive Growth Fund - 1,684,800 Y N All of the securities reported in this Schedule 13G are directly owned by advisory clients of Needham Investment Management L.L.C. None of those advisory clients, other than Needham Aggressive Growth Fund, may be deemed to beneficially own more than 5% of the Common Stock, par value $0.001 per share. N Please see Exhibit B attached hereto. Y Y N 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, other than activities solely in connection with a nomination under ?? 240.14a-11. Exhibit A - Joint Filing Agreement Exhibit B - Control Person Identification NEEDHAM INVESTMENT MANAGEMENT LLC By: /s/ James W. Giangrasso 05/04/2026 NEEDHAM ASSET MANAGEMENT, LLC By: /s/ James W. Giangrasso 05/04/2026 NEEDHAM AGGRESSIVE GROWTH FUND By: /s/ James W. Giangrasso 05/04/2026