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Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Checkbox not checked   Rule 13d-1(b)
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X0202 SCHEDULE 13D/A 0001687639 XXXXXXXX LIVE 1 Common Shares of Beneficial Interest 08/12/2026 false 0001075415 25525P107 DIVERSIFIED HEALTHCARE TRUST Two Newton Place, 255 Washington Street Suite 300 Newton MA 02458 Alyssa Petrenko (203) 569-4000 680 Washington Boulevard Seventh Floor Stamford CT 06901 0001687639 N H/2 Special Opportunities IV L.P. b WC N DE 0.00 12067366.00 0.00 12067366.00 12067366.00 N 4.98 OO 0001885852 N HABER SPENCER B b OO N X1 0.00 12067366.00 0.00 12067366.00 12067366.00 N 4.98 IN Common Shares of Beneficial Interest DIVERSIFIED HEALTHCARE TRUST Two Newton Place, 255 Washington Street Suite 300 Newton MA 02458 This Amendment No. 1 amends the Schedule 13D originally filed by the Reporting Persons with the United States Securities and Exchange Commission ("SEC") on June 30, 2023 ("Schedule 13D") relating to common shares of beneficial interest, $0.01 par value per share (the "Shares") of Diversified Healthcare Trust, a Maryland real estate investment trust (the "Issuer"). As a result of the transactions described herein, the Reporting Person ceased to be the beneficial owner of more than five percent (5%) of the Shares on August 10, 2026. This Amendment No. 1 constitutes the final amendment to the Schedule 13D. Item 4 of the Schedule 13D is hereby supplemented as follows: On June 30, 2023, an affiliate of the Reporting Person delivered a letter to the Chairman of the Board of Trustees of the Issuer (the "Letter") with respect to the Issuer's then-proposed merger with Office Properties Income Trust (the "Proposed Merger"). On September 1, 2023, the Issuer and Office Properties Income Trust publicly announced the mutual termination of the merger agreement relating to the Proposed Merger. The Proposed Merger was abandoned and never consummated, and the matters discussed in the Letter are no longer pending. Accordingly, the Letter does not reflect the Reporting Person's current plans or intentions with respect to the Issuer. In the aggregate, the Reporting Person beneficially owns 12,067,366 Shares, or 4.98% of Shares outstanding as of August 10, 2026, which is the total number of Shares outstanding as reported in the Issuer's Quarterly Report on Form 10-Q, filed with the Securities and Exchange Commission on August 3, 2026. The Reporting Person may be deemed to be controlled by the Other Reporting Person and therefore share beneficial ownership (and voting and dispositive power) of the Shares with the Other Reporting Person. Neither the filing of this Schedule 13D nor any of its contents shall be deemed to constitute an admission that the Other Reporting Person is the beneficial owner of the Shares referred to herein for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose, except to the extent of his pecuniary interest therein. On August 4, 2026, August 5, 2026 and August 10, 2026, the Reporting Person sold, via broker-dealer sales: (i) 200,000 Shares for a price per Share of $8.84; (ii) 100,000 Shares for a price per Share ranging between $9.14 and $9.15; and (iii) 450,000 Shares for a price per Share of $8.40, respectively. Except for the foregoing, the Reporting Person has not effected any transaction in the Shares in the past 60 days. The Other Reporting Person has not effected any transaction in the Shares in the past 60 days. The Reporting Person ceased to be the beneficial owner of more than five percent (5%) of the Shares on August 10, 2026. H/2 Special Opportunities IV L.P. Spencer B. Haber Authorized Signatory 08/12/2026 HABER SPENCER B Spencer B. Haber Authorized Signatory 08/12/2026