Received email from Fidelity that a security I hold is affected by a voluntary corporate action event, but no idea what that means

Hey everyone, Hopefully this is the right place to ask. Received the below communication from Fidelity a couple days ago and I do not understand what is going on here. I currently own 300 shares of Aurora (ACB) and 30 shares of Curaleaf (CURLF). It sounds like CURLF wants to buy my ACB shares? Not exactly sure. At the end of the email it says 'If you would like to participate, please call xxx-xxx-xxxx'. I am not following what they are asking, so I am not sure if I want to participate or not. Would someone be so kind as to translate what they are saying here into words a casual investor like myself can easily understand? Greatly appreciated! We're letting you know that a security you hold in your account is affected by a voluntary corporate action event. If you choose to participate, you must contact us to provide instructions. If you choose not to participate your account may still be affected. Account: XXX-XXXXXX Corporate Action: TNDR EXCH OFFER CUSIP: XXXXXXX Security Description: AURORA CANNABIS INC COM NPV (POST REV Quantity: 300.00000 Fidelity Cutoff Date: 12/01/26 Because some offers may have multiple cutoff dates, the "Fidelity Cutoff Date" represents the next deadline during an active offer to ensure your participation. This date may also be different from the offer's security or market expiration dates. 11/12/26 12:56:58 PLEASE NOTE: For holders who reside in a Restricted State, this offer has an earlier election Cut-Off Date. (11/20/26) 11/12/26 11:09:37 Curaleaf Holdings, Inc. announced that it has filed a Notice of Variation, Change and Extension to increase its offer (the "Enhanced Offer") to acquire all of the issued and outstanding common shares of Aurora Cannabis Inc. for consideration consisting of subordinate voting shares of Curaleaf and cash. Under the terms of the Enhanced Offer, Aurora shareholders would receive total implied consideration of US$5.00 per Aurora Share, comprised of 0.4013 Curaleaf Shares (the "Share Consideration") plus US$1.00 cash (the "Cash Consideration", and collectively with the Share Consideration, the "Amended Consideration") based on Curaleaf's U.S. dollar equivalent closing share price of C$14.21 (C$1.00 = US$0.7015) on October 2, 2026. Based on Aurora's 30-day volume weighted average price ("VWAP") of US$2.75 as of August 10, 2026 (the day before Curaleaf announced its intention to make its initial offer (the "Unaffected Share Price"), the Enhanced Offer represents a premium of 86% to Aurora's Unaffected Share Price. Excluding the value of the cash and DCL_CEBTWSGMBBBMPVV_BBBBB 20261112 5417 S 563857.5.0 PWI Page 2 of 4 Fidelity Brokerage Services LLC, Member NYSE, SIPC cash equivalents that Aurora has on its balance sheet, including its subsequent equity issuances pursuant to its at-the-market ("ATM") program issued during its fiscal first quarter, the Enhanced Offer represents a premium of 217% to the ex-cash Unaffected Share Price. The Enhanced Offer will also increase the Offer's maximum consideration per Aurora Share from US$5.00 to US$6.00 (the "Cap Price"). The Cap Price would represent a premium of 118% to Aurora's Unaffected Share Price and a 295% premium to the ex-cash Unaffected Share Price.