X0202 SCHEDULE 13D/A 0000921895-26-000850 0002042077 XXXXXXXX LIVE 3 Common Stock, $0.01 par value 08/03/2026 true 0001227636 64131A105 Neuronetics, Inc.

3222 PHOENIXVILLE PIKE MALVERN PA 19355

Jorey Chernett (248) 469-8811 6222 Indianwood Tr. Bloomfield Hills MI 48301 0002042077 N Chernett Jorey PF N X1 10588988.00 0.00 10588988.00 0.00 10588988.00 N 15.22 IN Common Stock, $0.01 par value Neuronetics, Inc. 3222 PHOENIXVILLE PIKE MALVERN PA 19355 This Amendment No. 3 to Schedule 13D ("Amendment No. 3") amends and supplements the Schedule 13D initially filed by the Reporting Person on March 31, 2026, as subsequently amended (the "Schedule 13D") with respect to the Shares. Except as specifically amended and supplemented hereby, the Schedule 13D remains in full force and effect. Capitalized terms used but not defined herein shall have the meanings ascribed to them in the Schedule 13D. Item 3 is hereby amended and restated as follows: The 10,588,988 Shares held by Mr. Chernett were purchased with personal funds for an aggregate purchase price of approximately $20,682,236. Item 4 is hereby amended to add the following: The information set forth in Item 6 related to the Understanding (as defined and described below) is incorporated by reference herein. Item 5(a) is hereby amended and restated as follows: The aggregate percentage of Shares beneficially owned by the Reporting Person is based upon 69,587,840 Shares outstanding as of May 1, 2026, as disclosed in the Issuer's Quarterly Report on Form 10-Q, filed with the U.S. Securities and Exchange Commission (the "SEC") on May 5, 2026. As of the close of business on the date hereof, the Reporting Person beneficially owned 10,588,988 Shares. Percentage: Approximately 15.22% Item 5(b) is hereby amended and restated as follows: 1. Sole power to vote or direct vote: 10,588,988 2. Shared power to vote or direct vote: 0 3. Sole power to dispose or direct the disposition: 10,588,988 4. Shared power to dispose or direct the disposition: 0 Item 5(c) is hereby amended and restated as follows: The transactions in the Shares by the Reporting Person since the filing of Amendment No. 2 to the Schedule 13D are set forth in more detail in Exhibit 1 attached hereto. Item 6 is hereby amended to add the following: On August 3, 2026, the Reporting Person and the Issuer announced that they had reached a constructive framework for alignment between the Reporting Person and the Board (the "Understanding"). Pursuant to the Understanding, the Reporting Person will have an opportunity to recommend a newly appointed member of the Board, subject to customary Board approvals and governance processes. The foregoing description of the Understanding does not purport to be complete and is qualified in its entirety by reference to the full description of the Understanding contained in the press release published by the Issuer on August 3, 2026, a copy of which is attached as Exhibit 99.1 hereto and which is incorporated by reference herein. Item 7 is hereby amended to add the following exhibits: Exhibit 1 - Transactions in the Securities Exhibit 99.1 - Press Release dated August 3, 2026 Chernett Jorey /s/ Jorey Chernett 08/04/2026