
Spero Therapeutics, Inc. (SPRO) Q2 2026 Earnings Call Transcript
Spero Therapeutics, Inc., a clinical-stage biopharmaceutical company, focuses on identifying, developing, and commercializing novel treatments for multidrug resistant (MDR) bacterial infections and rare diseases in the United States. The company is headquartered in Cambridge, Massachusetts.
| Revenue (TTM) | $47.00M |
| Gross Profit (TTM) | $26.46M |
| EBITDA | $7.16M |
| Operating Margin | 14.10% |
| Return on Equity | 19.20% |
| Return on Assets | 7.19% |
| Revenue/Share (TTM) | $0.82 |
| Book Value | $0.91 |
| Price-to-Book | 1.62 |
| Price-to-Sales (TTM) | 1.52 |
| EV/Revenue | 0.533 |
| EV/EBITDA | 3.46 |
| Quarterly Earnings Growth (YoY) | 75.30% |
| Quarterly Revenue Growth (YoY) | -95.60% |
| Shares Outstanding | $58.23M |
| Float | $46.20M |
| % Insiders | 22.61% |
| % Institutions | 17.55% |
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Spero Therapeutics, Inc. (SPRO) Q2 2026 Earnings Call Transcript

Spero Therapeutics NASDAQ: SPRO used its second-quarter update to outline a strategic shift toward immune-mediated diseases, supported by the FDA approval of Utebzi and a new licensing agreement for SP001, an antibody candidate the company plans to develop initially for IgG4-related disease.

CAMBRIDGE, Mass., Aug. 12, 2026 (GLOBE NEWSWIRE) -- Spero Therapeutics, Inc. (Nasdaq: SPRO), a clinical-stage biopharmaceutical company focused on advancing next-generation medicines in immunology and inflammation, today announced financial results for the second quarter ended June 30, 2026, and provided a corporate update.

CAMBRIDGE, Mass., Aug. 05, 2026 (GLOBE NEWSWIRE) -- Spero Therapeutics, Inc. (Nasdaq: SPRO), a clinical-stage biopharmaceutical company focused on advancing next-generation medicines in immunology and inflammation, today announced that on July 22, 2026, the Compensation Committee of Spero's Board of Directors approved a grant, to be made on August 3rd, of an aggregate of 324,622 stock options and 162,311 restricted stock unit awards (RSUs) to a new employee under the Spero Therapeutics, Inc. 2019 Inducement Equity Incentive Plan, as amended (2019 Inducement Plan).

CAMBRIDGE, Mass., Aug. 04, 2026 (GLOBE NEWSWIRE) -- Spero Therapeutics, Inc. (Nasdaq: SPRO), a clinical-stage biopharmaceutical company focused on advancing next-generation medicines in immunology and inflammation, today announced that announced that it will report its financial results for the second quarter ended June 30, 2026 on Wednesday, August 12, 2026, after market close.

Dr. Zack brings more than 25 years of leadership in developing therapeutics for immune-mediated diseases Appointment strengthens Spero's clinical leadership team as the Company advances SP001, a Phase 2-ready third-generation anti-CD40L antibody for IgG4-related disease (IgG4-RD) and other immune-mediated conditions CAMBRIDGE, Mass., July 27, 2026 (GLOBE NEWSWIRE) -- Spero Therapeutics, Inc. (Nasdaq: SPRO), a clinical-stage biopharmaceutical company focused on advancing next-generation medicines in immunology and inflammation, today announced the appointment of Debra Jeske Zack, M.D.

Spero Therapeutics is initiated with a "Buy" rating, driven by its strategic pivot to immunology and strong non-dilutive financing. SPRO secured FDA approval for Utebzi and a $105M royalty deal, enabling funding for SP001 development without shareholder dilution. SP001, a third-generation anti-CD40L antibody, targets IgG4-RD and Sjögren's disease, with phase 2 trials planned for 2027 and a differentiated, B-cell-sparing MOA.

CAMBRIDGE, Mass., July 14, 2026 (GLOBE NEWSWIRE) -- Spero Therapeutics, Inc. (Nasdaq: SPRO), a clinical-stage biopharmaceutical company focused on advancing next-generation medicines in immunology and inflammation, today announced a $105 million non-recourse non-dilutive royalty financing transaction with affiliates of Healthcare Royalty, a business of KKR (HCRx). Under the agreement, HCRx will receive a portion of future milestone and royalty payments associated with sales of Utebzi™ (tebipenem pivoxil). The proceeds will primarily be used to support advancement of Spero's lead immunology drug candidate, SP001, a Phase 2-ready, Fc-silent, third-generation anti-CD40L monoclonal antibody with potential for development across a range of immune-mediated diseases.

Under the terms of the agreement, Spero will receive exclusive global rights, excluding Greater China, to develop, research, manufacture, and commercialize IBI355 (Spero R&D code: SP001) Innovent will receive an upfront payment, and is eligible to receive development, regulatory and commercial milestone payments, totaling approximately US$1.1 billion, as well as tiered royalties on net sales Spero plans to initiate a Phase 2 trial for IBI355 in Q2 2027 in IgG4-related disease (IgG4-RD), a serious, chronic fibroinflammatory condition with significant treatment burden and limited therapeutic options Innovent plans to initiate a Phase 2 trial in China by early 2027 for Sjögren's disease (SjD), a chronic autoimmune disorder with limited therapeutic options SAN FRANCISCO, CAMBRIDGE, Mass., and SUZHOU, China, July 14, 2026 /PRNewswire/ -- Innovent Biologics, Inc. (01801.HK) and Spero Therapeutics, Inc. (Nasdaq: SPRO) today announced an exclusive license agreement for IBI355 (Spero R&D code: SP001), a third-generation Fc-silent anti-CD40L antibody.

CAMBRIDGE, Mass. and SAN FRANCISCO and SUZHOU, China, July 14, 2026 (GLOBE NEWSWIRE) -- Spero Therapeutics, Inc. (Nasdaq: SPRO) and Innovent Biologics, Inc. (01801.HK) today announced an exclusive license agreement for SP001 (Innovent R&D code: IBI355), a third-generation Fc-silent anti-CD40L antibody. Spero will receive exclusive rights to develop, research, manufacture, and commercialize SP001 worldwide, excluding Greater China, where Innovent retains rights. Spero currently expects to advance SP001 into a Phase 2 study in IgG4-RD patients in Q2 2027; Innovent expects to initiate a Phase 2 trial in China for SjD by early 2027.
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