NASDAQ
13 days, 8 hours ago 
SPRO
Spero Therapeutics, INC
8-K: Spero Therapeutics and GSK Announce Pivotal Phase 3 Trial for Oral cUTI Treatment Stopped Early for Efficacy
Spero Therapeutics and its partner GSK announced that their pivotal Phase 3 PIVOT-PO trial for tebipenem HBr, an investigational oral treatment for complicated urinary tract infections, met its primary endpoint and was stopped early due to efficacy, paving the way for a planned FDA filing in the second half of 2025.
Better than expected
 

NASDAQ
27 days, 23 hours ago 
SPRO
Spero Therapeutics, INC
8-K: Spero Therapeutics Announces Q1 2025 Results and Business Update; Tebipenem HBr Phase 3 Interim Analysis Expected in Q2
Spero Therapeutics reports Q1 2025 financial results and provides a business update, highlighting the upcoming interim analysis of the Phase 3 PIVOT-PO trial for tebipenem HBr.
Worse than expected
 

NASDAQ
27 days, 23 hours ago 
SPRO
Spero Therapeutics, INC
10-Q: Spero Therapeutics Reports Q1 2025 Results, Navigates Financial Uncertainty
Spero Therapeutics announces its Q1 2025 financial results, highlighting ongoing clinical development of tebipenem HBr and addressing concerns about its ability to continue as a going concern.
Capital raise
 
Worse than expected
 

NASDAQ
34 days, 19 hours ago 
SPRO
Spero Therapeutics, INC
Form 4: Spero Therapeutics Executive Esther Rajavelu Reports Acquisition of 185,000 Shares of Common Stock
Esther Rajavelu, a key executive at Spero Therapeutics, has reported acquiring 185,000 shares of common stock through restricted stock units.

NASDAQ
42 days, 19 hours ago 
SPRO
Spero Therapeutics, INC
DEFA14A: Spero Therapeutics Sets Date for 2025 Annual Meeting, Seeks Stockholder Votes on Key Proposals
Spero Therapeutics is holding its annual stockholder meeting on June 12, 2025, and is soliciting votes on the election of directors, ratification of the company's accounting firm, executive compensation, and an amendment to the stock incentive plan.

NASDAQ
42 days, 23 hours ago 
SPRO
Spero Therapeutics, INC
DEF: Spero Therapeutics Seeks Stockholder Approval for Amended Stock Incentive Plan and Elects New Directors at Upcoming Annual Meeting
Spero Therapeutics is holding its 2025 annual meeting virtually on June 12, 2025, to elect directors, ratify the selection of its accounting firm, approve executive compensation, and amend its stock incentive plan.

NASDAQ
42 days, 23 hours ago 
SPRO
Spero Therapeutics, INC
8-K: Spero Therapeutics Appoints Esther Rajavelu as President and CEO, Shukla Steps Down
Spero Therapeutics names Esther Rajavelu as President and CEO, effective May 2, 2025, succeeding Sath Shukla, who departs from the company and the Board of Directors.

NASDAQ
74 days, 22 hours ago 
SPRO
Spero Therapeutics, INC
8-K: Spero Therapeutics Announces Q4 and Full Year 2024 Results, Provides Business Update
Spero Therapeutics reports its Q4 and full year 2024 financial results, highlighting a net loss but anticipating sufficient cash runway into Q2 2026, while also providing updates on its clinical programs.
Worse than expected
 

NASDAQ
74 days, 23 hours ago 
SPRO
Spero Therapeutics, INC
10-K: Spero Therapeutics Navigates Financial Uncertainty, Suspends Key Programs in Strategic Shift
Spero Therapeutics' 10-K filing reveals a company in transition, suspending SPR720 and SPR206 development while focusing on tebipenem HBr amid financial challenges and a SEC investigation.
Worse than expected
 
Capital raise
 

NASDAQ
101 days, 21 hours ago 
SPRO
Spero Therapeutics, INC
8-K: Spero Therapeutics Receives Nasdaq Deficiency Notice for Minimum Bid Price
Spero Therapeutics has been notified by Nasdaq that its common stock price fell below the required $1.00 minimum, potentially leading to delisting if not rectified by August 25, 2025.
Worse than expected
 

SPRO 
Spero Therapeutics, INC 
NASDAQ

10-Q: Spero Therapeutics Reports Q1 2025 Results, Navigates Financial Uncertainty

Sentiment:
 Quarterly Report
 13 May 2025 4:15 PM

Spero Therapeutics announces its Q1 2025 financial results, highlighting ongoing clinical development of tebipenem HBr and addressing concerns about its ability to continue as a going concern.

Capital raise
  The company expects that it will need substantial additional funding.  The company will seek additional funding through public or private financings, debt financing, collaboration agreements, government grants or other sources.  The company has a universal shelf registration statement on Form S-3 with the SEC on March 15, 2024, which became effective on March 22, 2024, and pursuant to which the company registered for sale up to $300.0 million of any combination of its common stock, preferred stock, debt securities, warrants, rights and/or units from time to time and at prices and on terms that the company may determine, including up to $75.0 million of its common stock available for issuance pursuant to a Controlled Equity Offering Sales Agreement (the Sales Agreement) with Cantor Fitzgerald & Co. (Cantor). 

Worse than expected
  The company's net loss increased compared to the same period last year.  There is substantial doubt about the company's ability to continue as a going concern.  The company received a Nasdaq deficiency letter due to its stock price falling below $1.00. 

Summary
  • Spero Therapeutics reported a net loss of $13.9 million for the three months ended March 31, 2025, compared to a net loss of $12.7 million for the same period in 2024.
  • The company's cash and cash equivalents totaled $48.9 million as of March 31, 2025.
  • Spero believes its cash runway will be sufficient to fund operations into the second quarter of 2026, contingent on milestone payments from GSK.
  • The company has suspended development of SPR720 and discontinued development of SPR206 to focus on tebipenem HBr.
  • Spero received a deficiency letter from Nasdaq due to its stock price falling below $1.00 per share, requiring compliance by August 25, 2025.
  • Esther Rajavelu was appointed as President and CEO, succeeding Satyavrat Shukla, effective May 2, 2025.
Sentiment

Score: 4

Explanation: The document presents a mixed sentiment. While there are positive aspects such as the GSK collaboration and ongoing clinical trials, the financial uncertainties, Nasdaq deficiency, and program suspensions weigh heavily, resulting in a slightly negative outlook.

Positives
  • The company believes its current cash runway, combined with GSK milestone payments, will fund operations into the second quarter of 2026.
  • The company is prioritizing the advancement of the Phase 3 clinical trial for tebipenem HBr.
  • Esther Rajavelu's appointment as President and CEO provides stable leadership.
Negatives
  • The company has a history of losses and expects to incur substantial future losses.
  • There is substantial doubt about the company's ability to continue as a going concern within one year.
  • The company received a Nasdaq deficiency letter due to its stock price falling below $1.00.
  • Development of SPR720 has been suspended, and SPR206 has been discontinued, increasing reliance on tebipenem HBr.
Risks
  • The company's ability to realize the value of tebipenem HBr depends on FDA approval and GSK's commercialization efforts.
  • Clinical trials may not produce favorable results, leading to additional costs and delays.
  • The company faces substantial competition from other pharmaceutical and biotechnology companies.
  • The company may not be able to raise additional capital when needed, forcing it to delay or eliminate product development programs.
  • The company is subject to a Wells Notice from the SEC, which could have a material adverse effect on its business and stock price.
Future Outlook

Spero plans to prioritize advancing the Phase 3 clinical trial activities for tebipenem HBr and completing its analysis of the full dataset from the Phase 2a proof-of-concept trial of SPR720. The company will need additional funding beyond Q2 2026, which it expects to raise through equity or debt financings, collaborations, or grant funding.

Management Comments
  • Management has concluded that substantial doubt exists about our ability to continue as a going concern.
  • Management believes that the cash runway will be sufficient to fund operating expenses and required capital expenditures into the second quarter of 2026.
Industry Context

Spero Therapeutics operates in the competitive biopharmaceutical industry, facing competition from major pharmaceutical companies, specialty pharmaceutical companies, and biotechnology companies worldwide. The company's focus on developing novel treatments for multi-drug resistant bacterial infections aligns with the growing global concern about antimicrobial resistance.

Comparison to Industry Standards
  • The company's reliance on government funding and collaborations is a common strategy among smaller biotech firms to offset the high costs of drug development.
  • The decision to suspend SPR720 and discontinue SPR206 reflects a strategic shift to prioritize late-stage assets, a common practice in the industry to maximize resources.
  • Spero's cash runway into Q2 2026 is relatively short compared to some peers, highlighting the need for additional funding.
  • The Nasdaq deficiency letter underscores the financial challenges faced by many small-cap biotech companies.
Stakeholder Impact
  • Shareholders face potential dilution from future capital raises and the risk of stock price decline.
  • Employees experienced workforce reductions as part of the restructuring.
  • Patients may benefit from the continued development of tebipenem HBr, if approved.
  • Suppliers and creditors face potential risks due to the company's financial uncertainties.
Next Steps
  • Complete pre-specified interim analysis of PIVOT-PO in Q2 2025.
  • Continue advancing Phase 3 clinical trial activities for tebipenem HBr.
  • Complete analysis of the full dataset from the Phase 2a proof-of-concept trial of SPR720.
  • Seek additional funding through equity or debt financings, collaborations, or grant funding.
Legal Proceedings
  • Securities class action lawsuits and derivative actions were dismissed.
  • The company responded to a Wells Notice from the SEC regarding certain public disclosures.
Key Dates
  • July 2018: Spero awarded BARDA contract for tebipenem HBr development.
  • January 4, 2019: Spero enters into license agreement with Everest Medicines for SPR206.
  • May 2021: Spero awarded NIAID contract for SPR206 development.
  • June 30, 2021: Spero and Pfizer enter into license and share purchase agreements for SPR206.
  • September 21, 2022: Spero enters into license agreement with GSK for tebipenem HBr.
  • October 29, 2024: Spero implements strategic restructuring and suspends SPR720 development.
  • January 9, 2025: Spero responds to Wells Notice from the SEC.
  • February 25, 2025: Spero receives Nasdaq deficiency letter.
  • March 2025: Spero announces discontinuation of SPR206 development.
  • April 4, 2025: NIAID terminates contract for SPR206.
  • May 2, 2025: Esther Rajavelu appointed President and CEO.
  • August 25, 2025: Deadline for Spero to regain compliance with Nasdaq bid price requirement.
Keywords
Tebipenem HBr, Spero Therapeutics, Financial Results, Clinical Trials, GSK, SPR720, SPR206, Nasdaq, Going Concern, FDA

SPRO 
Spero Therapeutics, INC 
NASDAQ
Sector: TBD
 
Filings with Classifications
Better than expected
28 May 2025 7:12 AM

Clinical Trial Results
  • The Phase 3 PIVOT-PO trial met its primary endpoint of non-inferiority.
  • The trial was stopped early for efficacy, indicating stronger-than-anticipated positive results.
  • No new safety concerns were identified, reinforcing the drug's safety profile.
Worse than expected
13 May 2025 4:49 PM

Earnings Release
  • The company reported a higher net loss compared to the same quarter last year.
  • The company reported lower revenue compared to the same quarter last year.
Worse than expected
13 May 2025 4:15 PM

Quarterly Report
  • The company's net loss increased compared to the same period last year.
  • There is substantial doubt about the company's ability to continue as a going concern.
  • The company received a Nasdaq deficiency letter due to its stock price falling below $1.00.
Capital raise
13 May 2025 4:15 PM

Quarterly Report
  • The company expects that it will need substantial additional funding.
  • The company will seek additional funding through public or private financings, debt financing, collaboration agreements, government grants or other sources.
  • The company has a universal shelf registration statement on Form S-3 with the SEC on March 15, 2024, which became effective on March 22, 2024, and pursuant to which the company registered for sale up to $300.0 million of any combination of its common stock, preferred stock, debt securities, warrants, rights and/or units from time to time and at prices and on terms that the company may determine, including up to $75.0 million of its common stock available for issuance pursuant to a Controlled Equity Offering Sales Agreement (the Sales Agreement) with Cantor Fitzgerald & Co. (Cantor).
Worse than expected
27 March 2025 5:19 PM

Earnings Release and Business Update
  • The company reported a net loss of $(20.9) million for Q4 2024 compared to a net income of $51.2 million for Q4 2023.
  • Total revenue for Q4 2024 was $15.0 million, compared with total revenue of $73.5 million for the fourth quarter of 2023.
  • The company discontinued the SPR206 program following a pipeline review in Q1 2025.
Capital raise
27 March 2025 4:30 PM

Annual Results
  • Spero expects to need additional funding beyond the second quarter of 2026.
  • The company expects that additional funding will primarily consist of raising additional capital through some combination of equity or debt financings, potential new collaborations or additional grant funding.
Worse than expected
27 March 2025 4:30 PM

Annual Results
  • The company's auditor has expressed substantial doubt about its ability to continue as a going concern.
  • The company has suspended development of SPR720 and discontinued SPR206.
  • The company is subject to an SEC investigation regarding certain public disclosures made in 2022.
Worse than expected
28 February 2025 5:11 PM

8-K Filing
  • The company's stock price falling below the Nasdaq minimum bid price requirement is worse than expected.
Worse than expected
10 January 2025 7:00 AM

Corporate Update
  • The company is facing an SEC investigation, which is a negative development.
  • The company has made interim leadership changes, which can create uncertainty.
  • The company has suspended development of SPR720 after a Phase 2a trial did not meet its primary endpoint and showed potential safety issues.
Worse than expected
14 November 2024 4:05 PM

Quarterly Report
  • The company reported a significantly larger net loss in Q3 2024 compared to Q3 2023.
  • The company's revenue decreased substantially in Q3 2024 compared to Q3 2023.
  • The company suspended the development of SPR720 after a Phase 2a trial failed to meet its primary endpoint.
Delay expected
14 November 2024 4:02 PM

Quarterly Report
  • The suspension of the SPR720 program will delay the development of a potential treatment for NTM-PD.
Capital raise
14 November 2024 4:02 PM

Quarterly Report
  • The company expects to need additional funding beyond mid-2026, which will primarily consist of raising additional capital through some combination of equity or debt financings, potential new collaborations, additional grant funding and/or reducing cash expenditures.
  • The company has a universal shelf registration statement on Form S-3, which allows it to sell up to $300 million of securities, including up to $75 million of common stock through an at-the-market offering program.
Worse than expected
14 November 2024 4:02 PM

Quarterly Report
  • The company suspended the development of SPR720 due to the Phase 2a trial not meeting its primary endpoint and potential safety issues.
Worse than expected
29 October 2024 5:01 PM

Business Update
  • The Phase 2a trial of SPR720 failed to meet its primary endpoint, leading to the suspension of the program.
  • The company is undergoing a restructuring and workforce reduction due to the disappointing trial results.
Capital raise
5 August 2024 4:18 PM

Quarterly Report
  • The company expects to need additional funding beyond late 2025, which will primarily consist of raising additional capital through some combination of equity or debt financings, potential new collaborations, or additional grant funding.
  • The company has a universal shelf registration statement on Form S-3, which allows for the sale of up to $300 million of securities, including common stock.
Worse than expected
5 August 2024 4:18 PM

Quarterly Report
  • The company reported a net loss of $30.5 million for the first half of 2024, indicating ongoing financial challenges.
Worse than expected
5 August 2024 4:13 PM

Quarterly Report
  • The company's net loss increased significantly compared to the same quarter last year, indicating worse than expected financial performance.
Capital raise
15 May 2024 4:02 PM

Quarterly Report
  • The company expects to need additional funding beyond late 2025, which they anticipate will primarily consist of raising additional capital through some combination of equity or debt financings, potential new collaborations or additional grant funding.
  • Spero has filed a new universal shelf registration statement on Form S-3 with the SEC, registering for sale up to $300.0 million of any combination of its common stock, preferred stock, debt securities, warrants, rights and/or units.
Worse than expected
15 May 2024 4:02 PM

Quarterly Report
  • The company reported a net loss of $12.7 million, which is a significant loss for the quarter, although slightly better than the $13.3 million loss in the same period last year.
Better than expected
13 March 2024 4:07 PM

Annual Results
  • The company reported a net income of $22.8 million for 2023, a significant improvement from the $46.4 million loss in 2022.
  • Revenue increased substantially to $103.8 million in 2023, compared to $53.5 million in 2022.
  • The company's cash runway is expected to extend into late 2025, providing financial stability.

Disclaimer: This summary was generated by artificial intelligence and its accuracy is not guaranteed. The information provided here is for general informational purposes only and does not constitute financial advice, recommendation, or endorsement of any kind. It may contain errors or omissions. You should not rely on this information to make financial decisions. Always seek the advice of a qualified financial professional before making any investment or financial decisions. Use of this information is at your own risk.