Market Recap — August 19, 2026
Recap of insider activity, SEC filings, and market-moving news for August 19, 2026.
Last generated Oct 23, 2026, 12:58 PM ET
Top Importance Today
Filings and news with the highest AI-ranked importance score.
Amylyx Upsizes Offering to $500M After Avexitide Win, Pricing at $35.50
Edesa Biotech Prices $25M Public Offering at $5.50, Deep Discount to Market
Backblaze Prices Upsized $175M Convertible Notes at 30% Premium
GBT Technologies Q2 10-Q: Going Concern Warning, $10.9M Working Capital Deficit, and Massive Dilution
CEO Huang Feng Buys $248,700 of Class B Shares at $3.40
Exyn Fires CEO for Cause After $286K Expense Fraud; New Material Weakness and Going Concern Doubts Persist
Datavault AI to Acquire BankWyse for $22M, Commits $35M in Funding
Virtuix Discloses Material Weakness, Going Concern Doubt, and $7.2M Quarterly Loss
Specificity Reports Q2 Loss, Multiple Debt Defaults, and Going Concern Warning
FDA Approves Ultragenyx Gene Therapy for Rare Metabolic Disorder
FDA Clears Ultragenyx's GENGLYCOS Gene Therapy for GSDIa
Madison Technologies Q2 10-Q: Going Concern, Material Weaknesses, and Debt Default
Largest Open-Market Insider Buys
Form 4 open-market purchases ranked by dollar amount.
Walters Group Buys $15.2M in Zentalis Offering, Stake Rises to 17.8M Shares
Director Michael Alfred Adds $2.1M to Bakkt Stake at $7.12
CEO Bought $1.44M in Private Placement, Then Sold 93% of It Two Weeks Later
Director Hong Zhiwang Buys $1.05M of ATXG Stock at $4.80
Co-CEO Anthony Cappell Buys $468K of REFI Stock at $10.40
CEO Jesse Correll Buys $283,672 of UTG Stock at $59
CEO Huang Feng Buys $248,700 of Class B Shares at $3.40
Director Ng Yah Ling Buys $129,716 of CCH Holdings Shares in Private Sale
Red Oak Partners Adds $119K in Motorsport Games Stock
Director Li Funa Buys $51K of Class B Shares at $3.40
Largest Open-Market Insider Sells
Form 4 open-market sales ranked by dollar amount.
Uber Sells $471.6M of Aurora Innovation Stock in Block Sale
Director Thomas Nimbley Sells $25.4M in PBF Energy Stock
Director Michelangelo Volpi Sells $19.9M in Aurora Stock
CEO Chad Robins Sells $14.9M in Stock After Exercising Options
CEO Bought $1.44M in Private Placement, Then Sold 93% of It Two Weeks Later
Notable 8-Ks and News
Material events and breaking news with importance score 6 or higher.
Amylyx Upsizes Offering to $500M After Avexitide Win, Pricing at $35.50
Edesa Biotech Prices $25M Public Offering at $5.50, Deep Discount to Market
Backblaze Prices Upsized $175M Convertible Notes at 30% Premium
Datavault AI to Acquire BankWyse for $22M, Commits $35M in Funding
FDA Approves Ultragenyx Gene Therapy for Rare Metabolic Disorder
FDA Clears Ultragenyx's GENGLYCOS Gene Therapy for GSDIa
OSR Health Faces Nasdaq Delisting; Trading Suspension Set for August 26
Moderna Surges 177% as mRNA Cancer Vaccine Succeeds in Late-Stage Trial
Harte Hanks to Be Acquired by Star Equity for $5.00/Share — 100% Premium, 30-Day Go-Shop
Cavitation Technologies Signs $35M Tender Offer Agreement with European Guarantee Services
Form 144 Notices
Notices that restricted shares may be sold soon — often a precursor to insider selling.
Day boundary: 00:00 ET (America/New_York). Filings accepted late may appear in the next day's recap.