X0202 SCHEDULE 13D/A 0000779335-26-000006 0000779335 XXXXXXXX LIVE 1 Common Stock, par value $0.01 per share 10/19/2026 false 0000014846 055645303 BRT Apartments Corp.

60 CUTTER MILL RD 60 CUTTER MILL RD GREAT NECK NY 11021-3190

Isaac Kalish 516-466-3100 60 Cutter Mill Road Suite 303 Great Neck NY 11021 0000779335 N GOULD INVESTORS L P b WC N DE 4375144.00 0.00 4375144.00 0.00 4375144.00 N 23.8 PN (1) The managing general partner of Gould Investors L.P. (the "Partnership") is Georgetown Partners LLC ("Georgetown"). Matthew J. Gould and Jeffrey A. Gould control Georgetown. Messrs. M. Gould and J. Gould and the Partnership may be deemed to share voting and dispositive power with respect to the Shares owned by the Partnership. (2) The percentage in Row 13 is based on 18,402,111 shares of common stock outstanding as of November 6, 2026. 0001187903 N GOULD JEFFREY b AF PF OO N X1 540828.00 4434475.00 540828.00 4434475.00 4975303.00 N 27.0 IN (1) The amounts in Rows 8, 10 and 11 include 26,267 shares owned by the Gould Shenfeld Family Foundation, 33,063 shares owned by 130 Store Company LLC, 1 share owned by the Gould Family Trust and 4,375,144 shares owned by the Partnership. (2) The percentage in Row 13 is based on 18,402,111 shares of common stock outstanding as of November 6, 2026. 0001187904 N GOULD MATTHEW J b AF PF OO N X1 544796.00 4455349.00 544796.00 4455349.00 5000145.00 N 27.2 (1) The amounts in Rows 8, 10 and 11 include 20,874 shares owned by the BRT Apartments Corp. Pension Trust, 26,267 shares owned by the Gould Shenfeld Family Foundation, 33,063 shares owned by 130 Store Company LLC, 1 share owned by the Gould Family Trust and 4,375,144 shares owned by the Partnership. (2) The percentage in Row 13 is based on 18,402,111 shares of common stock outstanding as of November 6, 2026. Common Stock, par value $0.01 per share BRT Apartments Corp. 60 CUTTER MILL RD 60 CUTTER MILL RD GREAT NECK NY 11021-3190 October 19, 2026 represents the Reporting Persons' estimate, based on currently available information, of the date of the event requiring this Amendment. This Amendment No. 1 (this "Amendment") amends and supplements the Schedule 13D filed with the Securities and Exchange Commission on July 2, 2026 (SEC accession number 0000779335-26-000006) (the "Original Schedule 13D"), by Gould Investors L.P., Matthew J. Gould and Jeffrey A. Gould (the "Reporting Persons"), relating to the common stock, par value $0.01 per share (the "Shares"), of BRT Apartments Corp. (the "Issuer"). Capitalized terms not defined herein have the meanings assigned in the Original Schedule 13D. Except as expressly amended below, all information in the Original Schedule 13D, including Items 1, 2, 4 and 6 and Items 5(d) and 5(e), remains unchanged and is incorporated herein by reference. This Amendment reports updated beneficial ownership reflecting acquisitions pursuant to the Issuer's dividend reinvestment plan (the "DRIP") and increases in percentage ownership resulting from the Issuer's repurchases of Shares, which reduced the number of Shares outstanding. Those repurchases were transactions by the Issuer, not acquisitions by the Reporting Persons. Item 3 is supplemented as follows with respect to the acquisitions reported in this Amendment: The Shares reported in Item 5(c) as acquired by entities were acquired using their respective working capital, and those reported as acquired by individuals were acquired using personal funds, in each case through reinvestment of cash dividends. The information in Item 5(c) concerning the number of Shares acquired and the price per Share is incorporated herein by reference. The information in Rows 7 through 13 of each Reporting Person's cover page, including the footnotes, is incorporated herein by reference. The percentages are based on 18,402,111 Shares outstanding as of November 6, 2026. The 23,625 Shares previously included in the beneficial ownership of each of Matthew J. Gould and Jeffrey A. Gould as potentially issuable pursuant to restricted stock units are no longer included because the conditions to vesting of those awards were not met. The information in Rows 7 through 13 of each Reporting Person's cover page, including the footnotes, is incorporated herein by reference. The percentages are based on 18,402,111 Shares outstanding as of November 6, 2026. The 23,625 Shares previously included in the beneficial ownership of each of Matthew J. Gould and Jeffrey A. Gould as potentially issuable pursuant to restricted stock units are no longer included because the conditions to vesting of those awards were not met. On October 6, 2026, the following purchasers acquired, through their reinvestment of cash dividends pursuant to the DRIP at a price of $14.58 per share, the number of Shares indicated: (a) the Partnership acquired 66,342 Shares-such shares are deemed to be beneficially owned by all of the Reporting Persons; (b) Matthew J Gould acquired 10,020 Shares; and (c) 130 Store Company LLC acquired 613 Shares-such Shares are deemed to be beneficially owned by Matthew J Gould and Jeffrey A. Gould. During the 60 days ending November 6, 2026, none of the Reporting Persons effected any other transactions in shares of the Company's common stock. GOULD INVESTORS L P /s/ Isaac Kalish 11/06/2026 GOULD JEFFREY /s/ Isaac Kalish 11/06/2026 GOULD MATTHEW J /s/ Isaac Kalish 11/06/2026