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Biggest News-Driven Stock Movers — Aug 17, 2026

Finvera Editorial Team··roundup

News-driven movers were led by a corporate filing and several legal-investigation headlines.

  • SM (+4.5%; +5.0% vs SPY): SM Investments Corporation filed a 2026 Amended General Information Sheet (as of Aug. 14, 2026).
  • IRON (+1.9%; +2.4% vs SPY): Rosen Law Firm encouraged Disc Medicine investors to inquire about a securities class action investigation.
  • COHN (-2.7%; -2.3% vs SPY): Cochlear Ltd. published its 2026 Annual / Sustainability Report.
  • HHS (-2.3%; -1.9% vs SPY): Shareholder-deal fairness question circulated: “Are MITT, ARX, HHS, FULC Obtaining Fair Deals for their Shareholders?”
  • MANH (+1.2%; +1.6% vs SPY): Rosen Law Firm announced an investigation into alleged breaches of fiduciary duties by Manhattan Associates directors and officers.
  • HLX (+1.2%; +1.6% vs SPY): Shareholder-deal fairness question circulated: “Are DSGR, HLX, ATAI, CRNX Obtaining Fair Deals for their Shareholders?”
  • FULC (+0.8%; +1.2% vs SPY): Shareholder-deal fairness question circulated: “Are MITT, ARX, HHS, FULC Obtaining Fair Deals for their Shareholders?”
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