Item 7.01 Regulation FD Disclosure.
On August 10, 2026, Silence Therapeutics plc (the “Company”) issued a press release announcing positive topline results from the Phase 2 SANRECO trial of divesiran in polycythemia vera (“PV”). A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
As described in the accompanying press release, the Company will host a conference call and live audio webcast today, August 10, 2026 at 8:00 a.m., Eastern Time, to discuss the presentation of data described above.
The live audio webcast may be accessed through the “Events and Presentations” section of the Company’s website at silence-therapeutics.com. A copy of the presentation to be used by the Company during the conference call is furnished as Exhibit 99.2 to this Current Report on Form 8-K and is incorporated herein by reference.
The information contained in Item 7.01 of this Current Report on Form 8-K, including Exhibits 99.1 and 99.2 attached hereto, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, and shall not be deemed incorporated by reference into any of the Company’s filings under the Securities Act of 1933, as amended, or the Exchange Act, whether made before or after the date hereof, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.
The Company’s website and any information contained on the Company’s website are not incorporated into this Current Report on Form 8-K.
Item 8.01 Other Events.
On August 10, 2026, the Company issued a press release announcing positive topline results from the Phase 2 SANRECO trial, a 36-week, randomized, double-blind, placebo-controlled portion of the Phase 2 trial evaluating divesiran (6 mg/kg) administered subcutaneously every six weeks (“Q6W”) or every twelve weeks (“Q12W”) met its primary endpoint and secondary endpoints. Based on the Phase 2 results, the Company expects to initiate a Phase 3 trial evaluating divesiran for Q12W dosing vs. placebo in the first half of 2027.
Key findings from the study include:
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The primary endpoint was met, with a significantly higher proportion of clinical responders among divesiran-treated patients with PV compared to those who received placebo (88% for divesiran versus 19% for placebo; p<0.0001). The primary endpoint was the proportion of patients achieving a response, which was defined as the absence of phlebotomy and maintenance of hematocrit (HCT) below 45% during weeks 18-36. |
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Importantly, both divesiran dose groups showed substantial primary endpoint efficacy with response rates of 93.8% and 81.3% for Q6W and Q12W, respectively. |
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The key secondary endpoint of phlebotomy rate during weeks 0-36 was also met with the mean number of phlebotomies per patient in the divesiran groups significantly reduced compared to placebo (0.2 for divesiran versus 2.1 for placebo; p<0.0001). |
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Divesiran groups also showed improvements in hematocrit control, iron markers including ferritin, and patient reported outcomes using the MPN-SAF Total Symptom Score (MPN-SAF TSS). |
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Divesiran was observed to be well tolerated and safety was in line with previous trials. No new safety findings were observed in the trial. Injection site reactions were infrequent and self-limiting. There were two investigator reported grade 1 anemia adverse event cases. |
Cautionary Regarding Forward-Looking Statements
This Current Report on Form 8-K contains forward-looking statements which are subject to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, as amended. Forward-looking statements are statements that are not historical facts, reflect management’s expectations as of the date of hereof, and involve certain risks and uncertainties. Forward-looking statements include, but are not limited to, statements herein with respect to the timing and the Company’s ability to initiate Phase 3 trial of divesiran in PV. These forward-looking statements are based on our current expectations and may differ materially from actual results due to a variety of factors including, without limitation, the factors that are described under the caption “Risk Factors” in the Company’s filings with the Securities and Exchange Commission, including its Annual Report on Form 10-K for the year ended December 31, 2025, filed with the SEC on March 5, 2026, and its subsequent filings with the SEC. The forward-looking statements herein are based on information available to the Company as of the date hereof, and the Company disclaims any obligation to update any forward looking statements, except as required by law.
Item 9.01 Exhibits.
(d) Exhibits.
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Description |
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| 99.1 |
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Press Release dated August 10, 2026 |
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| 99.2 |
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Conference Call Presentation dated August 10, 2026 |
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Cover Page Interactive Data File (embedded within the Inline XBRL document) |

August 10, 2026 SANRECO Phase 2
Topline Results in Polycythemia Vera Exhibit 99.2

Forward-Looking Statements The
information contained in this presentation is being supplied and communicated to you solely for your information and may not be reproduced, further distributed to any other person or published, in whole or in part, for any purpose. The distribution
of this presentation in certain jurisdictions may be restricted by law, and persons into whose possession this presentation comes should inform themselves about, and observe, any such restrictions. Although reasonable care has been taken to ensure
that the facts stated in this presentation are accurate and that the opinions expressed are fair and reasonable, the contents of this presentation have not been verified by Silence Therapeutics plc (the “Company”) or any other person.
Accordingly no representation or warranty, express or implied, is made as to the fairness, accuracy, completeness or correctness of the information and opinions contained in this presentation and no reliance should be placed on such information or
opinions. None of the Company, or any of its respective members, directors, officers or employees nor any other person accepts any liability whatsoever for any loss howsoever arising from any use of such information or opinions or otherwise arising
in connection with this presentation. No part of this presentation, or the fact of its distribution, should form the basis of or be relied upon in connection with any contract or commitment or investment decision whatsoever. This presentation does
not form part of any offer of securities, or constitute a solicitation of any offer to purchase or subscribe for securities or an inducement to enter into any investment activity. Recipients of this presentation are not to construe its contents, or
any prior or subsequent communications from or with the Company or its representatives as investment, legal or tax advice. In addition, this presentation does not purport to be all-inclusive or to contain all of the information that may be required
to make a full analysis of any transaction. Further, the information in this presentation is not complete and may be changed. Recipients of this presentation should each make their own independent evaluation of the information and of the relevance
and adequacy of the information in this document and should make such other investigations as they deem necessary. This presentation may contain forward-looking statements that reflect the Company’s current views and expectations regarding
future events. In particular certain statements with regard to the potential therapeutic benefits of divesiran; divesiran’s potential to become the first and best-in-class siRNA treatment for PV; and the timing and the Company’s ability
to initiate Phase 3 trail of divesiran and bring divesiran to patients as quickly as possible. Forward-looking statements involve risks and uncertainties that could cause actual results to differ materially from those expressed or implied by the
forward looking statements. Although not exhaustive, the following factors could cause actual results to differ materially from those the Company expects: difficulties inherent in the discovery and development of new products and the design and
implementation of pre-clinical and clinical studies, trials and investigations, delays in and results from such studies, trials and investigations that are inconsistent with previous results and the Company’s expectations, the failure to
obtain and maintain required regulatory approvals, product and pricing initiatives by the Company’s competitors, inability of the Company to market existing products effectively and the failure of the Company to agree beneficial terms with
potential partners for any of its products or the failure of the Company’s existing partners to perform their obligations, the ability of the Company to obtain additional financing for its operations and the market conditions affecting the
availability and terms of such financing. These and other risks are described more fully in the Company's filings with the Securities and Exchange Commission (“SEC”), including the “Risk Factors” section in the Company's
Annual Report on Form 10-K for the year ended December 31, 2025, filed with the SEC on March 5, 2026. All forward-looking statements contained in this presentation speak only as of the date on which they were made. Except to the extent required by
law, we undertake no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made. By participating in this presentation and/or accepting any copies hereof you agree to be bound
by the foregoing restrictions and the other terms of this disclaimer.

Introduction Iain Ross, Chairman and
Interim Principal Executive Officer

Silence – siRNA Platform Company
with Compelling Clinical Data Across Multiple Programs GOLD PLATFORM Proven GalNAc siRNA technology with broad utility Potent, durable and highly specific gene silencing Infrequent dosing enabled by durable pharmacology Strong and growing IP
portfolio CLINICAL RESULTS Four clinical-stage assets targeting large unmet needs in rare and cardiometabolic diseases Compelling clinical data generated across multiple programs FRANCHISE OPPORTUNITY Divesiran: first-in-class siRNA for PV ~150K
U.S. / ~3.5M global PV population1 Potential best-in-class profile Additional pipeline opportunities beyond PV 1. Using 44/100,000 global population: 7,800m, Kattamis, A. et al. Eur J Haematol (2020)

PV: Large Unmet Need and Proven Market
Value Create Significant Upside for a Best-in-Class Therapy Large Underserved Population 2-5 Many PV patients remain phlebotomy-dependent Persistent burden reflects inadequate control Broad addressable population needs better therapy Current Options
are Limited 2-5 Limitations in efficacy, safety and tolerability Chronic treatment burden and poor experience Jakafi generates ~$1B annually in PV despite later-line label limitations and treatment tradeoffs1 Compelling Product Profile Robust
efficacy Favorable safety Infrequent dosing Better patient experience A best-in-class PV therapy could unlock blockbuster potential in a large underserved market 1. According to Incyte financial disclosures and market share data 2. Verstovsek S, et
al. Ann Hematol. 2023 Mar;102(3):571-581; 3. Verstovsek S, et al. Leuk Res. 2017;56:5259.doi:10.1016/j.leukres.2017.01.032.; 4. McMullin MF, et. al. Br J Haematol. 2019 Jan; 184(2): 176-191.; 5. Mesa, R. Clin Adv Hematol Oncol (2017)

SANRECO Results Support Potential
Best-in-Class Treatment for Phlebotomy-Dependent PV Patients Efficacy Endpoints Safety Endpoints Infrequent Dosing

SANRECO Phase 2 Topline Results Steven
Romano, MD, Chief R&D Officer

Preclinical Phase I Phase II Key
Milestones Divesiran (TMPRSS6) Divesiran Clinical Development Program Polycythemia Vera PV is a rare myeloproliferative neoplasm characterized by excessive production of red blood cells Elevated hematocrit (Hct) >45% Primary treatment goal is to
maintain Hct <45% HEMATOLOGY Topline 36-Wk Primary EP Results Completed Completed SANRECO Phase 2, n= 48 SANRECO Phase 1, n= 21 GEMINI HV Study, n= 24 Polycythemia Vera (PV) Divesiran has orphan drug and fast track status in PV

Phase 2 SANRECO Study is a Global
Trial: 9 Countries / 4 Continents

Phase 2 SANRECO Study: Clinical
Study Design

SANRECO Phase 2 Study Overview
Design 36-week, placebo-controlled, double-blind period followed by a 3-year, double-blind and open-label extension period evaluating divesiran in 48 phlebotomy-dependent PV patients Key Inclusion Criteria PV diagnosis At least 3 phlebotomies in the
last 6 months or 5 in the last year prior to screening Stable dose of cytoreductive agents allowed HCT level <45% prior to dosing Dosing & Administration Divesiran 6 mg vs. placebo Administered s.c. at Q6W and Q12W intervals Key Objectives
Primary endpoint: proportion of patients who maintain HCT levels below 45% without phlebotomies between weeks 18 and 36 Secondary endpoints include safety and tolerability, pharmacokinetics, and quality of life changes

SANRECO: Primary Efficacy Endpoint
- Response Rate The primary endpoint was met: Significantly higher proportion of clinical responders among the divesiran treated PV patients (88%) compared to those who received placebo (19%) during weeks 18-36; p<0.0001 Placebo adjusted response
rate = 69% Note: Response is defined as HCT remaining below 45% and no phlebotomies received during weeks (18-36)

SANRECO: Primary Efficacy Endpoint
by Dose Groups Note: Response is defined as HCT remaining below 45% and no phlebotomies received during weeks 18-36 18.8% 81.3% 93.8%

SANRECO: Response Rate Sensitivity
Analysis (n=40)* Significantly higher proportion of clinical responders among the divesiran treated PV patients (89%) compared to those who received placebo (8%) during weeks 18-36; p<0.0001 Placebo adjusted response rate = 81% Note: Response is
defined as HCT remaining below 45% and no phlebotomies received during weeks 18-36 *All patients who met the Phase 1 criterion of a minimum of 3 phlebotomies in the previous 3 months or 5 in the previous 12 months 7.7% 88.9%

SANRECO: Key Secondary Endpoint -
Phlebotomy Rate Mean number of phlebotomies in the divesiran arm was 0.2 compared to 2.1 phlebotomies in the placebo arm during weeks 0-36 (p<0.0001) 12.5% 90.6%

SANRECO: Other Secondary Endpoints
Divesiran groups also showed improvements in: Hematocrit control Iron markers, including ferritin Patient reported outcomes using MPN-SAF Total Symptom Score (MPN-SAF TSS)

Summary of Adverse Events (Weeks
0-36) Divesiran was generally well tolerated Safety profile was in line with previous divesiran trials; no new safety findings Injection site reactions were infrequent and self-limiting There were two investigator reported grade 1 anemia adverse
event cases

Next Steps Phase 2 SANRECO full
results Submitted abstract to ASH Congress (Dec 12-15, New Orleans) End of Phase 2 meeting by year end Initiate Phase 3 study in 1H 2027

SANRECO Results Support Potential
Best-in-Class Treatment for Phlebotomy-Dependent PV Patients Phase 2 profile supports potential best-in-class positioning in phlebotomy-dependent PV

Q&A

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