Exhibit 99.1

BiomX Reports Third Quarter 2025 Financial Results and Provides Program Updates

Positive FDA feedback confirms clear clinical pathway for BX011 targeting S. aureus in Diabetic Foot Infections, building on Company’s prior Phase 2 success

BiomX expects FDA feedback on BX004 clinical hold imminently; Enrollment and dosing of patients outside the U.S. are continuing in accordance with protocol

Positive FDA feedback received in October provided guidance for potential Phase 3 development pathways of BX004

BiomX will host a conference call and webcast today at 8:30 AM ET

Ness Ziona, Israel, November 12, 2025 -- BiomX Inc. (NYSE American: PHGE) (“BiomX” or the “Company”), a clinical-stage company advancing novel natural and engineered phage therapies targeting specific pathogenic bacteria, today announced financial results for the third quarter ended September 30, 2025, and provided recent clinical and corporate updates.

“This past quarter was defined by significant advancements in our regulatory discussions with the Food and Drug Administration (FDA) across our pipeline,” said Jonathan Solomon, Chief Executive Officer of BiomX. “For BX004, we anticipate imminent FDA feedback regarding the clinical hold, and we have already received supportive guidance outlining potential Phase 3 development pathways that reflect recognition of the significant unmet need among cystic fibrosis patients treated with CFTR (Cystic Fibrosis Transmembrane Conductance Regulator) modulators. In parallel, we received additional positive FDA feedback confirming a clear clinical development path for BX011, our new fixed multi-phage cocktail targeting Staphylococcus aureus (S. aureus) in diabetic foot infections, building on the success of our prior Phase 2 trial in diabetic foot osteomyelitis.”

Clinical Program Updates

BX004 – Fixed phage cocktail for chronic Pseudomonas aeruginosa (P. aeruginosa) in patients with cystic fibrosis (CF)

BX011 – Fixed phage cocktail for patients with diabetic foot infections (DFI) associated with S. aureus

Third Quarter 2025 Financial Results

Cash balance and restricted cash as of September 30, 2025, were $8.1 million, compared to $18 million as of December 31, 2024. The decrease was primarily due to net cash used in operating activities, partially offset by funds raised in the Company’s February 2025 financing. BiomX estimates its cash, cash equivalents and restricted cash are sufficient to fund its operations into the first quarter of 2026.

Research and development expenses, net were $6.1 million for the third quarter of 2025, compared to $7.3 million for the third quarter of 2024. The decrease was primarily driven by reduced salary expenses due to workforce reductions, lower rent expenses following a right-of-use asset impairment in 2024, and decreased expenses related to the CF product candidate, primarily due to the significantly higher manufacturing costs that were incurred in 2024. Such decrease was partially offset by an increase in depreciation expenses attributable to the accelerated depreciation of leasehold improvements resulting from the modification of our office lease agreement in Ness Ziona, Israel, as well as by decreased grant funding from the Medical Technology Enterprise Consortium (under the DHA) and the Israel Innovation Authority.

General and administrative expenses were $2.4 million for the third quarter of 2025, compared to $3.2 million for the third quarter of 2024. The decrease was primarily driven by reduced salary and share-based compensation expenses and lower legal and other professional service fees. This decrease was partially offset by an increase in depreciation expenses attributable to the accelerated depreciation of leasehold improvements resulting from the modification of our office lease agreement in Ness Ziona, Israel.

Net loss was $9.2 million for the third quarter of 2025, compared to net income of $9.6 million for the third quarter of 2024. The decrease was mainly due to the change in the fair value of warrants issued as part of the Company’s March 2024 financing.

Net cash used in operating activities for the nine months ended September 30, 2025, was $22.0 million, compared to $30.7 million for the same period in 2024.

Conference Call and Webcast Details

BiomX will host a conference call and webcast on November 12, 2025, at 8:30 AM ET to discuss its third quarter 2025 financial results and to provide a corporate update.

Conference Call

https://register-conf.media-server.com/register/BIf7434533b852452a822a8e5f48b669e2

Webcast Link

https://edge.media-server.com/mmc/p/s6tntmgo

About BX004

BiomX is developing BX004, a fixed multi-phage cocktail, for the treatment of CF patients with chronic pulmonary infections caused by P. aeruginosa, a main contributor to morbidity and mortality in patients with CF. In November 2023, BiomX announced positive topline results from Part 2 of the Phase 1b/2a trial where BX004 demonstrated improvement in pulmonary function associated with a reduction in P. aeruginosa burden compared to placebo in a predefined subgroup of patients with reduced lung function (baseline FEV1<70%). Pending resolution of the clinical hold imposed by the FDA, BiomX expects to enroll up to approximately 60 patients in a randomized, double blind, placebo-controlled, multi-center Phase 2b trial of BX004 in CF patients with chronic P. aeruginosa lung infections. The 8-week study will assess lung function, bacterial load, and quality of life metrics. BX004 has received FDA Fast Track and Orphan Drug Designations.

About BX011

BX011 is a fixed multi-phage cocktail designed to treat S. aureus-associated DFI. DFI is a serious bacterial infection which frequently develops from ulcers on the foot and is a leading cause of amputation in patients with diabetes. BX011 incorporates multiple proprietary phages, including phage previously evaluated in the Company’s former DFO trial, to provide broad and potent coverage against this S. aureus in DFI patients. Following the FDA’s supportive feedback, BiomX plans to initiate a Phase 2a trial of BX011 in DFI, subject to available resources.

BiomX’s development of phage therapies for S. aureus has been supported by approximately US $40 million in non-dilutive funding from the DHA and Department of Navy funding under an Other Transaction Authority (OTA) award through the Medical Technology Enterprise Consortium (MTEC) and managed by the Naval Medical Research Command (NMRC) – Naval Advanced Medical Development (NAMD).

About BiomX

BiomX is a clinical-stage company leading the development of natural and engineered phage cocktails and personalized phage treatments designed to target and destroy harmful bacteria for the treatment of chronic diseases with substantial unmet needs. BiomX discovers and validates proprietary bacterial targets and applies its BOLT (“BacteriOphage Lead to Treatment”) platform to customize phage compositions against these targets. For more information, please visit www.biomx.com, the content of which does not form a part of this press release.

Safe Harbor

This press release contains express or implied “forward-looking statements” within the meaning of the “safe harbor” provisions of the U.S. Private Securities Litigation Reform Act of 1995. Forward-looking statements can be identified by words such as: “target,” “believe,” “expect,” “will,” “may,” “anticipate,” “estimate,” “would,” “positioned,” “future,” and other similar expressions that predict or indicate future events or trends or that are not statements of historical matters. For example, when BiomX refers to its anticipated timing for reporting results for its clinical assets as well as the design of clinical trials thereof, timing of lifting FDA clinical hold, if at all, future catalysts, potential timing,outcome and consequences of expected feedback from the FDA and discussions with the U.S. DHA, the potential safety, efficacy and toleration of BX004, BX011 and BX211, the potential benefits of BX004 and BX211, future clinical development of BX004, BX011 and BX211, the potential of its drug candidates to address the substantial unmet needs of patients, and the estimates of the sufficiency of its cash, cash equivalents and short-term deposits, it is using forward-looking statements. Forward-looking statements are neither historical facts nor assurances of future performance. Instead, they are based only on BiomX management’s current beliefs, expectations and assumptions. Because forward-looking statements relate to the future, they are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict and many of which are outside of BiomX’s control. These risks and uncertainties include, but are not limited to, changes in applicable laws or regulations; the possibility that BiomX may be adversely affected by other economic, business, and/or competitive factors, including risks inherent in pharmaceutical research and development, such as: adverse results in BiomX’s drug discovery, preclinical and clinical development activities, the risk that the results of preclinical studies and early clinical trials may not be replicated in later clinical trials, BiomX’s ability to enroll patients in its clinical trials, and the risk that any of its clinical trials may not commence, continue or be completed on time, or at all; decisions made by the FDA, and other regulatory authorities; decisions made by investigational review boards at clinical trial sites and publication review bodies with respect to our development candidates; BiomX’s ability to obtain, maintain and enforce intellectual property rights for its platform and development candidates; its potential dependence on collaboration partners; competition; uncertainties as to the sufficiency of BiomX’s cash resources to fund its planned activities for the periods anticipated and BiomX’s ability to manage unplanned cash requirements; and general economic and market conditions. Therefore, investors should not rely on any of these forward-looking statements and should review the risks and uncertainties described under the caption “Risk Factors” in BiomX’s Annual Report on Form 10-K filed with the Securities and Exchange Commission (the “SEC”) on March 25, 2025, and additional disclosures BiomX makes in its other filings with the SEC, which are available on the SEC’s website at www.sec.gov. Forward-looking statements are made as of the date of this press release, and except as provided by law BiomX expressly disclaims any obligation or undertaking to update forward-looking statements.

Contacts:

BiomX, Inc.
Ben Cohen
Head Corporate Communications
benc@biomx.com

BIOMX INC.

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BIOMX INC.

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