• Live Feeds
    • Press Releases
    • Insider Trading
    • FDA Approvals
    • Analyst Ratings
    • Insider Trading
    • SEC filings
    • Market insights
  • Analyst Ratings
  • Alerts
  • Subscriptions
  • Settings
  • RSS Feeds
Quantisnow Logo
  • Live Feeds
    • Press Releases
    • Insider Trading
    • FDA Approvals
    • Analyst Ratings
    • Insider Trading
    • SEC filings
    • Market insights
  • Analyst Ratings
  • Alerts
  • Subscriptions
  • Settings
  • RSS Feeds
PublishGo to App
    Quantisnow Logo

    © 2026 quantisnow.com
    Democratizing insights since 2022

    Services
    Live news feedsRSS FeedsAlertsPublish with Us
    Company
    AboutQuantisnow PlusContactJobsAI superconnector for talent & startupsNEWLLM Arena
    Legal
    Terms of usePrivacy policyCookie policy

    SEC Form 10-Q filed by Spero Therapeutics Inc.

    5/13/26 4:05:39 PM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care
    Get the next $SPRO alert in real time by email

    Unavailable

    Get the next $SPRO alert in real time by email

    Crush Q1 2026 with the Best AI Superconnector

    Stay ahead of the competition with Standout.work - your AI-powered talent-to-startup matching platform.

    AI-Powered Inbox
    Context-aware email replies
    Strategic Decision Support
    Get Started with Standout.work

    Recent Analyst Ratings for
    $SPRO

    DatePrice TargetRatingAnalyst
    12/20/2024$5.00Outperform → In-line
    Evercore ISI
    9/23/2022$2.00 → $8.00In-line → Outperform
    Evercore ISI
    10/1/2021Outperform → Perform
    Oppenheimer
    More analyst ratings

    $SPRO
    Insider Trading

    Insider transactions reveal critical sentiment about the company from key stakeholders. See them live in this feed.

    View All

    Officer Rajavelu Esther sold $63,352 worth of shares (25,240 units at $2.51), decreasing direct ownership by 2% to 986,851 units (SEC Form 4) to cover taxes

    4 - Spero Therapeutics, Inc. (0001701108) (Issuer)

    5/6/26 9:53:26 PM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Officer Rajavelu Esther sold $207,484 worth of shares (87,917 units at $2.36), decreasing direct ownership by 8% to 1,012,091 units (SEC Form 4)

    4 - Spero Therapeutics, Inc. (0001701108) (Issuer)

    2/9/26 9:31:37 PM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Chief Operating Officer Keutzer Timothy sold $44,019 worth of shares (18,652 units at $2.36), decreasing direct ownership by 2% to 742,506 units (SEC Form 4)

    4 - Spero Therapeutics, Inc. (0001701108) (Issuer)

    2/9/26 9:09:39 PM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $SPRO
    Press Releases

    Fastest customizable press release news feed in the world

    View All

    Compass Pathways Elects Kathleen Tregoning to Board of Directors

    Compass Pathways plc (NASDAQ:CMPS), a biotechnology company dedicated to accelerating patient access to evidence-based innovation in mental health, today announced the election of Kathleen Tregoning to its Board of Directors at the annual general meeting of shareholders. Ms. Tregoning is expected to serve on the Compensation and Leadership Development Committee and the Nominating and Corporate Governance Committee. She brings extensive experience guiding biopharmaceutical companies through periods of growth and transformation, with expertise spanning corporate strategy, external affairs, public policy and patient access. "With two successful Phase 3 trials meeting the primary endpoint, a

    5/28/26 6:30:00 AM ET
    $CMPS
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Spero Therapeutics Announces First Quarter 2026 Operating Results and Provides Business Update

    New Drug Application (NDA) for tebipenem HBr for complicated urinary tract infections (cUTI), including pyelonephritis, is under review at the FDA, with PDUFA date of June 18, 2026Spero maintains its cash runway guidance into 2028 CAMBRIDGE, Mass., May 13, 2026 (GLOBE NEWSWIRE) -- Spero Therapeutics, Inc. (NASDAQ:SPRO), a clinical-stage biopharmaceutical company focused on identifying and developing novel treatments for rare diseases and diseases with high unmet need, today announced financial results for the first quarter ended March 31, 2026, and provided a business update. "We continue to make solid progress on the tebipenem HBr program alongside our licensing partner, GSK, as we pre

    5/13/26 4:05:00 PM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Spero Therapeutics to Report First Quarter 2026 Financial Results and Provide Business Update on May 13, 2026

    CAMBRIDGE, Mass., May 05, 2026 (GLOBE NEWSWIRE) -- Spero Therapeutics, Inc. (NASDAQ:SPRO), a clinical-stage biopharmaceutical company focused on identifying and developing novel treatments for rare diseases and diseases with high unmet need, today announced that it will report its financial results for the first quarter ended March 31, 2026, and provide a business update on Wednesday, May 13, 2026, after market close. The Company does not intend to host a conference call. 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 diseases w

    5/5/26 4:05:00 PM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $SPRO
    Analyst Ratings

    Analyst ratings in real time. Analyst ratings have a very high impact on the underlying stock. See them live in this feed.

    View All

    $SPRO
    SEC Filings

    View All

    Spero Therapeutics downgraded by Evercore ISI with a new price target

    Evercore ISI downgraded Spero Therapeutics from Outperform to In-line and set a new price target of $5.00

    12/20/24 7:51:16 AM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Spero Therapeutics upgraded by Evercore ISI with a new price target

    Evercore ISI upgraded Spero Therapeutics from In-line to Outperform and set a new price target of $8.00 from $2.00 previously

    9/23/22 7:52:34 AM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Spero Therapeutics downgraded by Oppenheimer

    Oppenheimer downgraded Spero Therapeutics from Outperform to Perform

    10/1/21 6:10:00 AM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form 10-Q filed by Spero Therapeutics Inc.

    10-Q - Spero Therapeutics, Inc. (0001701108) (Filer)

    5/13/26 4:05:39 PM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Spero Therapeutics Inc. filed SEC Form 8-K: Results of Operations and Financial Condition

    8-K - Spero Therapeutics, Inc. (0001701108) (Filer)

    5/13/26 4:02:03 PM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form DEFA14A filed by Spero Therapeutics Inc.

    DEFA14A - Spero Therapeutics, Inc. (0001701108) (Filer)

    4/27/26 4:39:05 PM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $SPRO
    Leadership Updates

    Live Leadership Updates

    View All

    Compass Pathways Elects Kathleen Tregoning to Board of Directors

    Compass Pathways plc (NASDAQ:CMPS), a biotechnology company dedicated to accelerating patient access to evidence-based innovation in mental health, today announced the election of Kathleen Tregoning to its Board of Directors at the annual general meeting of shareholders. Ms. Tregoning is expected to serve on the Compensation and Leadership Development Committee and the Nominating and Corporate Governance Committee. She brings extensive experience guiding biopharmaceutical companies through periods of growth and transformation, with expertise spanning corporate strategy, external affairs, public policy and patient access. "With two successful Phase 3 trials meeting the primary endpoint, a

    5/28/26 6:30:00 AM ET
    $CMPS
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Spero Therapeutics Appoints Esther Rajavelu as President and Chief Executive Officer

    CAMBRIDGE, Mass., April 28, 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 that Esther Rajavelu will serve as its President and Chief Executive Officer, effective May 2, 2025, and will be nominated for election as a member of the Board of Directors at Spero's 2025 annual meeting of stockholders. Since January 2025, Ms. Rajavelu has been serving as Spero's Interim President and Chief Executive Officer, and has served as Chief Financial Officer, Treasurer, and Chief Business Officer since No

    4/28/25 4:01:00 PM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Spero Therapeutics Appoints Esther Rajavelu as Chief Financial Officer and Chief Business Officer

    CAMBRIDGE, Mass., Nov. 01, 2023 (GLOBE NEWSWIRE) -- Spero Therapeutics, Inc. (NASDAQ:SPRO), a multi-asset clinical-stage biopharmaceutical company, focused on identifying, developing, and commercializing treatments in high unmet need areas involving rare diseases and multi-drug resistant (MDR) bacterial infections, today announced the appointment of Esther Rajavelu as Chief Financial Officer and Chief Business Officer. Ms. Rajavelu will succeed Stephen DiPalma, who has served as the company's Interim CFO since August 1, 2023. "We are thrilled to welcome Esther to the executive leadership team as our new CFO and CBO. Esther brings a proven track record in corporate finance, from both indus

    11/1/23 8:05:00 AM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $SPRO
    Large Ownership Changes

    This live feed shows all institutional transactions in real time.

    View All

    Amendment: SEC Form SC 13G/A filed by Spero Therapeutics Inc.

    SC 13G/A - Spero Therapeutics, Inc. (0001701108) (Subject)

    11/14/24 5:37:55 PM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form SC 13G filed by Spero Therapeutics Inc.

    SC 13G - Spero Therapeutics, Inc. (0001701108) (Subject)

    2/14/24 4:25:21 PM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form SC 13G/A filed by Spero Therapeutics Inc. (Amendment)

    SC 13G/A - Spero Therapeutics, Inc. (0001701108) (Subject)

    2/14/23 11:47:54 AM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $SPRO
    Financials

    Live finance-specific insights

    View All

    Spero Therapeutics to Report First Quarter 2026 Financial Results and Provide Business Update on May 13, 2026

    CAMBRIDGE, Mass., May 05, 2026 (GLOBE NEWSWIRE) -- Spero Therapeutics, Inc. (NASDAQ:SPRO), a clinical-stage biopharmaceutical company focused on identifying and developing novel treatments for rare diseases and diseases with high unmet need, today announced that it will report its financial results for the first quarter ended March 31, 2026, and provide a business update on Wednesday, May 13, 2026, after market close. The Company does not intend to host a conference call. 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 diseases w

    5/5/26 4:05:00 PM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Spero Therapeutics to Report Fourth Quarter and Full Year 2025 Financial Results and Provide Business Update on March 26, 2026

    CAMBRIDGE, Mass., March 18, 2026 (GLOBE NEWSWIRE) -- Spero Therapeutics, Inc. (NASDAQ:SPRO), a clinical-stage biopharmaceutical company focused on identifying and developing novel treatments for rare diseases and diseases with high unmet need, today announced that it will report its financial results for the fourth quarter and full year ended December 31, 2025, and provide a business update on Thursday, March 26, 2026, after market close. The Company does not intend to host a conference call. About Spero TherapeuticsSpero Therapeutics, headquartered in Cambridge, Massachusetts, is a clinical-stage biopharmaceutical company focused on identifying and developing novel treatments for rare di

    3/18/26 4:05:00 PM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Spero Therapeutics to Report Third Quarter 2025 Financial Results and Provide Business Update on November 13, 2025

    CAMBRIDGE, Mass., Nov. 04, 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 that it will report its third quarter 2025 financial results and provide a business update on Thursday, November 13, after the market close. The Company does not intend to host a conference call. 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 multi-drug

    11/4/25 4:05:00 PM ET
    $SPRO
    Biotechnology: Pharmaceutical Preparations
    Health Care