Listing Alert, Trading Alert, Regulatory Alert
MIAX Sapphire
May 01, 2026 | 09:11 AM
MIAX Exchange Group - Options Markets - Corporate Action Alert: Montrose Environmental Group, Inc. (MEG) Trading Symbol Change
Montrose Environmental Group, Inc. (MEG) will change its name and trading symbol to Onterris, Inc. (ONT) effective on Monday, May 4, 2026.
All GTC orders resting on the MIAX order books in MEG will be canceled at the close of business on Friday, May 1, 2026.
NOTE: ONT options will trade on Cloud 14 on the MIAX Options Exchange, Cloud 7 on the MIAX Pearl Options Exchange and MIAX Emerald Options Exchange and Cloud 5 on the MIAX Sapphire Options Exchange.
Additional details about the Montrose Environmental Group, Inc. (MEG) symbol change are provided in the attached OCC Memo.
Please contact MIAX Listings with any questions at Listings@miaxglobal.com or (609) 897-7308.