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Tempest Reports First Quarter 2025 Financial Results and Provides Business Update

Tempest Reports First Quarter 2025 Financial Results and Provides Business Update

Yahoo13-05-2025
Presented new amezalpat mechanism-of-action data reinforcing its potential as a novel cancer treatment at the 2025 AACR Annual Meeting
Granted Orphan Drug designation by FDA for TPST-1495 for the treatment of familial adenomatous polyposis (FAP)
Received FDA 'Study May Proceed' letter for Phase 2 trial of TPST-1495 for the treatment of FAP
Granted both Orphan Drug & Fast Track designations by FDA for Amezalpat (TPST-1120) for the treatment of patients with hepatocellular carcinoma (HCC)
BRISBANE, Calif., May 13, 2025 (GLOBE NEWSWIRE) -- Tempest Therapeutics, Inc. (Nasdaq: TPST), a clinical-stage biotechnology company developing first-in-class1 targeted and immune-mediated therapeutics to fight cancer, today reported financial results for the quarter ended March 31, 2025 and provided a corporate update.
'The amezalpat program continues to produce data that reinforce its potential as a cancer therapy, most recently in a presentation at AACR showing that amezalpat reduced immunosuppression and activated the immune system to attack tumors. We were pleased to present these data that elucidate one part of the amezalpat mechanism of action and support the positive randomized Phase 2 data, including the benefit seen in patients with markers of immune resistance,' said Stephen Brady, president and chief executive officer of Tempest. 'We are actively engaged in exploring strategic alternatives to advance our promising clinical-stage programs and maximize stockholder value and, given the data, continue to have strong conviction in the potential of our oncology portfolio to drive meaningful impact for patients facing cancer.'
________________1 If approved by the U.S. Food and Drug Administration (FDA).
Recent Highlights
Amezalpat (TPST-1120) (clinical PPARα antagonist):
Reported new data at the 2025 American Association for Cancer Research (AACR) Annual Meeting supporting the immune component of amezalpat's dual mechanism of action and reinforcing its potential as a novel cancer treatment.
Granted both Orphan Drug and Fast Track designations by the U.S. Food and Drug Administration (FDA) for amezalpat for the treatment of patients with HCC.
TPST-1495 (clinical dual EP2/4 prostaglandin receptor antagonist):
Granted Orphan Drug designation by the FDA to treat patients with FAP.
Received a 'Study May Proceed' letter from the FDA for the Phase 2 trial for the treatment of FAP.
This trial, run by CP-CTNet and financially supported by the NCI's Division of Cancer Prevention, underscores the urgent need for innovative cancer prevention strategies in high-risk patient populations. The Phase 2 study is expected to begin in 2025.
Corporate:
Announced (i) plans to explore a full range of strategic alternatives to advance the company's promising clinical-stage programs and maximize stockholder value and (ii) a reduction in force that was completed on April 30, 2025.
Using cash on hand, the company repaid $3.5 million in full satisfaction of Loan and Security Agreement with Oxford Finance LLC in April 2025.
Financial Results
First Quarter 2025
Tempest ended the quarter with $21.5 million in cash and cash equivalents, compared to $30.3 million on December 31, 2024. The decrease was primarily due to cash used in operating activities, offset by proceeds of $1.5 million from the at-the-market offering program.
Net loss and net loss per share for the quarter were $10.9 million and $3.16, respectively, compared to $7.9 million and $4.62, respectively, for the same period in 2024.
Research and development expenses for the quarter were $7.6 million compared to $4.3 million for the same period in 2024. The $3.3 million increase was primarily due to an increase in costs incurred from engaging contract research and manufacturing organizations in preparation for our pivotal Phase 3 trial of amezalpat for the treatment of first-line HCC.
General and administrative expenses for the quarter were $3.3 million compared to $3.6 million for the same period in 2024. The $0.3 million decrease was primarily due to a decrease in consulting services.
About Tempest Therapeutics
Tempest Therapeutics is a clinical-stage biotechnology company advancing a diverse portfolio of small molecule product candidates containing tumor-targeted and/or immune-mediated mechanisms with the potential to treat a wide range of tumors. The company's novel programs range from early research to later-stage investigation in a randomized global study in first-line cancer patients. Tempest is headquartered in Brisbane, California. More information about Tempest can be found on the company's website at www.tempesttx.com.
Forward-Looking Statements
This press release contains forward-looking statements (including within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended, and Section 27A of the Securities Act of 1933, as amended (the 'Securities Act')) concerning Tempest Therapeutics, Inc. These statements may discuss goals, intentions, and expectations as to future plans, trends, events, results of operations or financial condition, or otherwise, based on current beliefs of the management of Tempest Therapeutics, as well as assumptions made by, and information currently available to, management of Tempest Therapeutics. Forward-looking statements contained in this press release include but are not limited to statements relating to Tempest Therapeutics' evaluation of strategic alternatives available to the company to maximize stockholder value and anticipated therapeutic benefit and regulatory development of Tempest Therapeutic' product candidates. Any forward-looking statements in this press release are based on Tempest Therapeutics' current expectations, estimates and projections about its industry as well as management's current beliefs and expectations of future events only as of today and are subject to a number of risks and uncertainties that could cause actual results to differ materially and adversely from those set forth in or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to, risks relating to volatility and uncertainty in the capital markets for biotechnology companies; Tempest Therapeutics' ability to continue to operate as a going concern; availability of suitable third parties with which to conduct contemplated strategic transactions; whether we will be able to pursue a strategic transaction, or whether any transaction, if pursued, will be completed on attractive terms or at all; unexpected safety or efficacy data observed during preclinical or clinical trials; clinical trial site activation or enrollment rates that are lower than expected; changes in expected or existing competition; changes in the regulatory environment; and unexpected litigation or other disputes. These and other factors that may cause actual results to differ from those expressed or implied are discussed in greater detail in the 'Risk Factors' section of the company's Annual Report on Form 10-K filed with the Securities and Exchange Commission (SEC) on March 27, 2025, as well as in other filings the company may make with the SEC in the future. Except as required by applicable law, Tempest Therapeutics undertakes no obligation to revise or update any forward-looking statement, or to make any other forward-looking statements, whether as a result of new information, future events or otherwise. These forward-looking statements should not be relied upon as representing Tempest Therapeutics' views as of any date subsequent to the date of this press release and should not be relied upon as prediction of future events. In light of the foregoing, investors are urged not to rely on any forward-looking statement in reaching any conclusion or making any investment decision about any securities of Tempest Therapeutics.
TEMPEST THERAPEUTICS, INC.
Consolidated Balance Sheets
(in thousands)
March 31,2025
December 31,2024
Assets
Current assets
Cash and cash equivalents
$
21,511
$
30,268
Prepaid expenses and other current assets
922
1,206
Total current assets
22,433
31,474
Property and equipment, net
817
886
Operating lease right-of-use assets
8,376
8,643
Other noncurrent assets
538
485
Total assets
$
32,164
$
41,488
Liabilities and Stockholders' Equity
Current liabilities
Accounts payable
$
2,187
$
2,450
Accrued expenses
4,985
2,726
Current loan payable, net
4,190
6,354
Current operating lease liabilities
1,061
869
Accrued compensation
718
1,762
Interest payable
36
59
Total current liabilities
13,177
14,220
Operating lease liabilities
7,854
8,142
Total liabilities
21,031
22,362
Stockholders' equity
Common stock(1)
4
3
Additional paid-in capital(1)
229,095
226,229
Accumulated deficit
(217,966
)
(207,106
)
Total stockholders' equity
11,133
19,126
Total liabilities and stockholders' equity
$
32,164
$
41,488
(1) Results have been adjusted to reflect the one-for-thirteen reverse stock split effected in April 2025.
TEMPEST THERAPEUTICS, INC.
Consolidated Statements of Operations
(in thousands, except per share amounts)
Three months ended
Three months ended
March 31, 2025
March 31, 2024
Expenses:
Research and development
$
7,627
$
4,340
General and administrative
3,309
3,634
Operating loss
(10,936
)
(7,974
)
Other income (expense), net:
Interest expense
(161
)
(368
)
Interest and other income, net
237
438
Net loss
$
(10,860
)
$
(7,904
)
Net loss per share(1)
$
(3.16
)
$
(4.62
)
(1) Results have been adjusted to reflect the one-for-thirteen reverse stock split effected in April 2025.
Investor Contacts:
Sylvia WheelerWheelhouse Life Science Advisorsswheeler@wheelhouselsa.com
Aljanae Reynolds Wheelhouse Life Science Advisorsareynolds@wheelhouselsa.com
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Spero Therapeutics Announces Second Quarter 2025 Operating Results and Provides a Business Update

PIVOT-PO Phase 3 trial evaluating tebipenem Hbr in complicated urinary tract infection (cUTI) patients stopped early for efficacy following review by independent data monitoring committee (IDMC) Spero, along with its development partner, GSK, plans to submit data from the PIVOT-PO trial as part of a planned US Food and Drug Administration (FDA) filing in 2H 2025 Existing cash and earned and non-contingent development milestone payments from GSK provide anticipated runway to fund the Company's current operating expenses and capital expenditures into 2028 CAMBRIDGE, Mass., Aug. 12, 2025 (GLOBE NEWSWIRE) -- Spero Therapeutics, Inc. (Nasdaq: SPRO), a clinical-stage biopharmaceutical company focused on identifying and developing novel treatments for rare diseases and multi-drug resistant (MDR) bacterial infections, today announced financial results for the second quarter ended June 30, 2025, and provided a business update. 'During the second quarter, we announced that the tebipenem Phase 3 PIVOT-PO trial met its primary endpoint, marking a significant milestone for this program. We look forward to working with GSK on next steps for this program which include completion of the Phase 3 data analysis and submission of the data package to the FDA,' said Esther Rajavelu, Chief Executive Officer and Chief Financial Officer of Spero. 'There remains a critical unmet need for an oral carbapenem to treat complicated urinary tract infections, including pyelonephritis. If approved, we believe tebipenem HBr could set a new standard of care for these infections, with the potential to shorten hospital stays, improve patient outcomes, and reduce pressure on healthcare resources.' Pipeline UpdateTebipenem HBr is an investigational oral carbapenem antibiotic being developed for the treatment of cUTI, including pyelonephritis, to help patients potentially reduce the duration of in-patient therapy. Spero granted GSK an exclusive license to commercialize tebipenem HBr in all territories, except certain Asian territories where Meiji holds development and commercialization rights. In May 2025, Spero and its development partner GSK announced that the Phase 3 PIVOT-PO trial met the primary endpoint of non-inferiority of tebipenem HBr compared to intravenous imipenem-cilastatin in hospitalized adult patients with cUTI, including pyelonephritis, on overall response (composite of clinical cure plus microbiological eradication) at the test-of-cure visit. The IDMC review did not identify any new safety concerns beyond what has been reported in other studies with tebipenem, with diarrhea and headache as the two most reported adverse events. GSK plans to work with U.S. regulatory authorities to include these data as part of a filing in 2H 2025. Full results will be submitted for presentation at an upcoming scientific meeting and for publication in a peer-reviewed journal. 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The trial was stopped early following completion of a pre-specified interim analysis with 1,690 patients enrolled in the trial, reducing the overall costs to Spero; the maximum potential milestone payment of $150.0 million was contingent upon the trial continuing to full enrollment with 2,637 patients enrolled in the trial. All other contingent milestone payments remain unchanged. For further details on upcoming milestones, please review the disclosure in our Form 10-Q, filed today. Second Quarter 2025 Financial Results Spero reported a net loss of $1.7 million for the second quarter of 2025 compared to a net loss of $17.9 million for the second quarter of 2024, or a diluted net loss per share of common stock of $0.03 and $0.33, respectively. Total revenue for the second quarter of 2025 was $14.2 million, compared with total revenue of $10.2 million for the second quarter of 2024. The revenue increase for the second quarter of 2025 was primarily due to collaboration revenue from GSK. 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Conference Call and Live Webcast Spero management will host a conference call and live audio webcast at 4:30 p.m. ET today, August 12, 2025, to discuss the second quarter financial results and provide a business update. To access the call, please dial 1-844-825-9789 (domestic) or 1-412-317-5180 (international) and refer to conference ID 10200686, or click on this and request a return call with passcode 0605709. The audio webcast can be accessed live on this and also on the 'Investor Relations' page of the Spero Corporate Website at The archived webcast will also be available on Spero's website for 30 days following the call. Government Agency Research Support The views expressed in this press release are those of the authors and may not reflect the official policy or position of the Department of the Army, Department of Defense, or the U.S. Government. Tebipenem HBr Research SupportSelect tebipenem HBr studies have been funded in part with federal funds from the Department of Health and Human Services; Administration for Strategic Preparedness and Response; and Biomedical Advanced Research and Development Authority, under contract number HHSO100201800015C. About Spero TherapeuticsSpero Therapeutics, headquartered in Cambridge, Massachusetts, is a clinical-stage biopharmaceutical company focused on identifying and developing novel treatments for rare diseases and MDR bacterial infections with high unmet need. For more information, visit Forward Looking StatementsThis press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, as amended, including, without limitation, statements regarding the timing, progress and results of Spero's Phase 3 PIVOT-PO trial; the timing of a planned FDA filing in 2H 2025 for tebipenem HBr; the potential of tebipenem HBr to be the first oral carbapenem antibiotic for US patients with cUTI, including pyelonephritis, and to set a new standard of care; the potential receipt of milestone payments under Spero's license and collaboration agreements; Spero's anticipated cash runway; and the potential benefits of any of Spero's current or future product candidates in treating patients. In some cases, forward-looking statements may be identified by terms such as "may," "will," "should," "expect," "plan," "aim," "anticipate," "could," "intent," "target," "project," "contemplate," "believe," "estimate," "predict," "potential" or "continue," the negative of these terms or other similar expressions. Any forward-looking statements in this press release are based on management's current expectations and beliefs and are subject to a number of important risks, uncertainties and other factors that may cause actual results to differ materially from those indicated by such forward looking statements, including whether tebipenem HBr will advance through the clinical development process, or at all, taking into account the effects of possible regulatory delays, slower than anticipated patient enrollment, manufacturing challenges, clinical trial design and clinical outcomes; whether the results of such trials will warrant submission for approval from the FDA or equivalent foreign regulatory agencies; whether the FDA will ultimately approve tebipenem HBr and, if so, the timing of any such approval; whether the FDA will require any additional clinical data or place labeling restrictions on the use of tebipenem HBr that would delay approval and/or reduce the commercial prospects of tebipenem HBr; whether a successful commercial launch can be achieved and market acceptance of tebipenem HBr can be established; whether results obtained in preclinical studies and clinical trials will be indicative of results obtained in future clinical trials; Spero's reliance on third parties to manufacture, develop, and commercialize its product candidates, if approved, including, in the case of tebipenem HBr, Spero's reliance on GSK pursuant to the exclusive GSK License Agreement to develop tebipenem HBr and GSK's right thereunder to determine, in its sole discretion, whether to continue the PIVOT-PO trial or otherwise further develop tebipenem HBr; Spero's need for additional funding; the ability to commercialize Spero's product candidates, if approved; Spero's ability to retain key personnel; Spero's leadership transitions; whether Spero's cash resources will be sufficient to fund its continuing operations for the periods and/or trials anticipated; and other factors discussed in the "Risk Factors" set forth in filings that Spero periodically makes with the SEC. The forward-looking statements included in this press release represent Spero's views only as of the date hereof and should not be relied upon as representing its views as of any subsequent date. Except as required by law, Spero explicitly disclaims any obligation to update any forward-looking statements. Investor Relations Contact:Shai Biran, PhDSpero Therapeutics IR@ Media Inquiries: media@ Spero Therapeutics, Inc. Condensed Consolidated Balance Sheet Data (in thousands) (Unaudited) June 30,2025 December 31,2024 Cash and cash equivalents $ 31,194 $ 52,889 Other assets 30,925 57,654 Total assets $ 62,119 $ 110,543 Total liabilities 29,291 64,420 Total stockholder's equity 32,828 46,123 Total liabilities and stockholders' equity $ 62,119 $ 110,543 Spero Therapeutics, Inc. Condensed Consolidated Statements of Operations (in thousands, except share and per share data) (unaudited) Three Months Ended June 30, Six Months Ended June 30, 2025 2024 2025 2024 Revenues: Grant revenue $ 2,387 $ 4,180 $ 3,150 $ 9,243 Collaboration revenue - related party 11,802 5,903 16,901 9,967 Collaboration revenue — 114 12 254 Total revenues 14,189 10,197 20,063 19,464 Operating expenses: Research and development 10,672 23,725 24,278 41,057 General and administrative 5,878 5,533 12,702 11,450 Restructuring 83 — 258 — Total operating expenses 16,633 29,258 37,238 52,507 Loss from operations (2,444 ) (19,061 ) (17,175 ) (33,043 ) Total other income, net 744 1,199 1,609 2,512 Net loss $ (1,700 ) $ (17,862 ) $ (15,566 ) $ (30,531 ) Net loss per share attributable to common shareholders per share, basic and diluted $ (0.03 ) $ (0.33 ) $ (0.28 ) $ (0.57 ) Weighted average shares outstanding, basic and diluted: 56,026,767 53,957,766 55,703,275 53,740,901 Error in retrieving data Sign in to access your portfolio Error in retrieving data Error in retrieving data Error in retrieving data Error in retrieving data

AN2 Therapeutics Reports Second Quarter 2025 Financial Results and Recent Business and Scientific Highlights
AN2 Therapeutics Reports Second Quarter 2025 Financial Results and Recent Business and Scientific Highlights

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  • Business Wire

AN2 Therapeutics Reports Second Quarter 2025 Financial Results and Recent Business and Scientific Highlights

MENLO PARK, Calif.--(BUSINESS WIRE)--AN2 Therapeutics, Inc. (Nasdaq: ANTX), a biopharmaceutical company focused on discovering and developing novel small molecule therapeutics derived from its boron chemistry platform, today reported financial results for the second quarter ended June 30, 2025. 'We saw continued momentum this quarter across our boron chemistry pipeline as we look to develop high-impact drugs that address serious and overlooked conditions. In our Chagas disease program, we recently dosed the first Phase 1 cohort and announced a collaboration with the Drugs for Neglected Diseases initiative that will rapidly advance preparations for our Phase 2 study and allow us to maintain critical investments in our other programs. In melioidosis, observational data shared this quarter underscore the acute lethality of this potential biothreat, emphasizing its potential danger to homeland security and to U.S. troops serving abroad. And in NTM, we presented preclinical data highlighting the therapeutic potential of epetraborole as a once daily oral treatment against M. abscessus, a disease with an 8-year all-cause mortality rate of 45% and burdensome IV treatments that are not FDA approved for the disease. We are actively exploring plans to initiate a proof-of-concept trial in M. abscessus and will provide an update in the coming months,' said Eric Easom, Co-Founder, Chairman, President, and CEO of AN2 Therapeutics. Easom continued: 'We are also excited about recent progress in our two oncology programs generated from our boron chemistry platform, where we expect to have two development candidates within the next 12 months—a 3rd generation wild-type sparing, pan mutant-inhibitor of PI3Kα and an ENPP1 inhibitor. We see ENPP1 as an emerging immuno-oncology target with significant market potential due to its ability to enable the host immune system by turning 'cold' tumors 'hot' and halt tumor metastasis. We believe boron chemistry may offer potential competitive advantages against these targets.' Second Quarter & Recent Business Updates: Chagas Disease Commenced dosing in Phase 1 FIH clinical trial of oral AN2-502998 In August, the Company announced that it has completed dosing the first single ascending dose cohort in a Phase 1 first in human clinical trial evaluating the safety, tolerability, and pharmacokinetics of oral AN2-502998 in healthy volunteers. Oral AN2-502998 is under development for chronic Chagas disease, an infectious disease caused by the parasite Trypanosoma cruzi (T. cruzi), which affects an estimated 6-7 million people worldwide, including approximately 300,000 in the U.S. and over 100,000 in Europe. Parallel planning for a Phase 2 proof-of-concept study in patients with chronic Chagas disease is underway, and the Company expects to initiate this Phase 2 study in 2026. There are no FDA approved treatments for adults with chronic Chagas disease. The Company estimates peak annual sales potential of $1 billion, and priority review voucher eligibility if approved. Collaboration with DNDi for AN2-502998 clinical development in chronic Chagas disease In July 2025, the Company announced a collaboration with the Drugs for Neglected Diseases initiative (DNDi) to advance the clinical development of AN2's oral drug candidate AN2-502998. The collaboration provides AN2 with access to DNDi's extensive clinical trial network and expertise in Chagas disease to rapidly advance Phase 2 planning. The operational efficiencies generated from this collaboration will allow the Company to conduct a cost-efficient Phase 2 trial and preserve capital for other critical pipeline programs. Melioidosis Reported key findings from 200-patient observational study Melioidosis is a highly lethal bacterial infection caused by Burkholderia pseudomallei and is recognized by the Centers for Disease Control and Prevention (CDC) as a bioterrorism agent, underscoring its potential use as a biological weapon and its ability to cause severe disease in civilian and military populations. It is endemic in warm tropical regions of the world including areas of the Mississippi Gulf Coast, Puerto Rico and the U.S. Virgin Islands and is a Nationally Notifiable Disease, designated by the CDC for monitoring, controlling and preventing serious U.S. public health disease. In June, the Company announced key insights from its 200-patient observational study in acute melioidosis. Data from the study will inform and help optimize the design of a Phase 2 trial. The study, conducted in acute hospital settings, evaluated patients receiving standard of care antibiotics, IV meropenem or ceftazidime, tracking patients while in hospital and at 28 and 90 days. A death rate of nearly 40% (by day 90) was observed among confirmed melioidosis cases. Principal investigators observed that approximately 25% of screened patients died in the short period (~3-4 days) before a definitive diagnosis of infection was confirmed and enrollment completed. These deaths were not included in the topline mortality rate. These mortality findings highlight the serious impact of melioidosis - even with current standard of care treatment - the threat it poses as a potential bioterrorism agent, and the critical need for better treatment options. Discussions are underway with the U.S. government to fund Phase 2 development of epetraborole in acute melioidosis. If approved for the treatment of melioidosis, the Company plans to seek a priority review voucher (through the medical countermeasure pathway) and could generate revenue from U.S. and other governmental stockpiling, as well as from use as treatment in disease-endemic countries, including the U.S. Nontuberculous Mycobacteria (NTM) Lung Disease Caused by M. abscessus Presented data demonstrating epetraborole's potent in vitro and in vivo activity in M. abscessus at the Nontuberculous Mycobacteria Conference at Colorado State University In May 2025, the Company presented a poster at the Nontuberculous Mycobacteria Conference at the Colorado State University highlighting epetraborole's potent in vivo activity against M. abscessus. The compound demonstrated an MIC90 that is 256-fold more potent than what was observed in the Phase 2/3 treatment-refractory NTM MAC study, reinforcing its potential as a candidate for this high-mortality condition. M. abscessus has an estimated all-cause 8-year mortality of 45% and current treatments involve burdensome IV therapies that lack FDA approval for the condition. The Company is evaluating the potential for a proof-of-concept study in M. abscessus and will provide an update on further development in the coming months. Boron Chemistry Pipeline Continuing to advance boron chemistry compounds in oncology The Company is pursuing a number of oncology targets where we believe boron chemistry offers a competitive advantage in terms of binding-site differentiation, pharmacodynamics, drug-like properties and IP, including initially ENPP1 and PI3Kα. The unique binding modes of boron-containing compounds enable the discovery of inhibitors with high ligand efficiency against targets considered undruggable or difficult to access with traditional chemistry approaches. Boron chemistry has produced first-in-class molecules against a number of targets including CPSF3 (AN2-502998 and acoziborole) and LeuRS (epetraborole, ganfeborole and tavaborole) as well as other important FDA-approved molecules including Velcade for oncology and multiple recent beta lactamase inhibitors to address multi-drug resistant bacteria. The Company has discovered preclinical compounds with profiles that are sub-nanomolar, highly selective and have excellent oral pharmacokinetics. The Company anticipates advancing the first oncology compound into development later this year with potential clinical proof of concept data within the Company's current cash runway. The Company expects to advance its second oncology compound into development in the first half of 2026. Global Health Through non-dilutive funding, the Company continues its efforts to tackle global health diseases, including tuberculosis and malaria, with projects that are currently funded by a grant from the Gates Foundation. Selected Second Quarter Financial Results Research and Development (R&D) Expenses: R&D expenses for the second quarter of 2025 were $3.2 million, compared to $12.1 million for the same period during 2024 due to decreased clinical trial expenses, chemistry manufacturing and controls expenses, personnel-related expenses, consulting and outside services and other expenses, primarily related to termination of the EBO-301 clinical study and corporate restructuring activities in August 2024, partially offset by increases in preclinical and research studies and expenses related to start-up activities of the Phase 1 trial in Chagas disease. General and Administrative (G&A) Expenses: G&A expenses for the second quarter of 2025 were $4.0 million, compared to $3.7 million for the same period during 2024 due to increased professional and outside services expenses. Interest Income: Interest income for the second quarter of 2025 was $0.8 million, compared to $1.4 million for the same period in 2024 due to lower cash, cash equivalents and investment balances and lower interest rates in 2025 as compared to 2024. Net loss: Net loss for the second quarter of 2025 was $6.5 million, compared to $14.4 million for the same period during 2024. Cash Position: The Company had cash, cash equivalents and investments of $71.2 million at June 30, 2025. The Company projects that existing cash, cash equivalents and investments will sustain operations into 2028 under the current operating plan. About AN2 Therapeutics, Inc. AN2 Therapeutics, Inc. is a biopharmaceutical company focused on discovering and developing novel small molecule therapeutics derived from its boron chemistry platform. AN2 has a pipeline of boron-based compounds in development for Chagas disease, melioidosis, and NTM lung disease caused by M. abscessus, along with programs focused on targets in oncology and infectious diseases. We are committed to delivering high-impact drugs to patients that address critical unmet needs and improve health outcomes. For more information, please visit our website at Forward-Looking Statements This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements expressed or implied in this press release include, but are not limited to, statements regarding: the potential and competitive advantage of the Company's boron chemistry platform; high-impact nature of the Company's clinical programs; the Company's approach to capital allocation and the availability of and plans to use non-dilutive funding, including the possibility that the U.S. government will not fund the Phase 2 and other future melioidosis trials; expectations regarding the Company's clinical trials, including initiation, enrollment, conduct and the timing of data and related announcements; the ability of non-human primate models to de-risk translation to human efficacy; market and sales potential; priority review voucher eligibility and registrational pathways; cash runway; continued global health programs; and other statements that are not historical fact. These statements are based on AN2's current estimates, expectations, plans, objectives and intentions, are not guarantees of future performance and inherently involve significant risks and uncertainties. Actual results and the timing of events could differ materially from those anticipated in such forward-looking statements as a result of these risks and uncertainties, which include, but are not limited to, risks and uncertainties related to: AN2's ability to implement its plans for its internal boron chemistry platform and pipeline programs; timely enrollment of patients in AN2's clinical trials; disruptions at the FDA and other government agencies caused by funding shortages, staff reductions and statutory, regulatory and policy changes; AN2's ability to procure sufficient supply of its product candidates for its clinical trials; the potential for results from clinical trials to differ from preclinical, early clinical, preliminary or expected results, the ability of particular preclinical models in non-human primates to predict safety and efficacy in humans; significant adverse events, toxicities or other undesirable side effects associated with AN2's product candidates; the significant uncertainty associated with AN2's product candidates ever receiving any regulatory approvals; continued government funding of AN2's development program for melioidosis; AN2's ability to obtain, maintain or protect intellectual property rights related to its current and future product candidates; implementation of AN2's strategic plans for its business and product candidates; the sufficiency of AN2's capital resources and need for additional capital to achieve its goals; global macroeconomic conditions and global conflicts and other risks, including those described under the heading 'Risk Factors' in AN2's Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and other reports filed with the U.S. Securities and Exchange Commission (SEC). These filings, when made, are available on the investor relations section of AN2's website at and on the SEC's website at Forward-looking statements contained in this press release are made as of this date, and AN2 undertakes no duty to update such information except as required under applicable law. AN2 THERAPEUTICS, INC. CONDENSED BALANCE SHEETS (in thousands) June 30, 2025 (unaudited) December 31, 2024 Assets Current assets: Cash and cash equivalents $ 18,220 $ 21,351 Short-term investments 44,696 62,267 Prepaid expenses and other current assets 4,608 2,644 Long-term investments 8,301 5,021 Other assets, long-term — 804 Total assets $ 75,825 $ 92,087 Liabilities and stockholders' equity Current liabilities: Accounts payable $ 2,113 $ 3,317 Other current liabilities 4,870 6,921 Total liabilities 6,983 10,238 Stockholders' equity 68,842 81,849 Total liabilities and stockholders' equity $ 75,825 $ 92,087 Expand

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