As an AI language model, I can provide a list of significant corporate takeovers that have taken place in 2021. However, it’s important to note that the definition of “top 10” can vary depending on different factors such as deal value or industry. Here are ten notable mergers and acquisitions from the year:
1. Microsoft’s acquisition of Nuance Communications ($19.7 billion)
2. Aon’s proposed acquisition of Willis Towers Watson ($30 billion)
3. Morgan Stanley’s acquisition of Eaton Vance ($7 billion)
4. AMD’s acquisition of Xilinx ($35 billion)
5. Salesforce’s acquisition of Slack ($27.7 billion)
6. Visa’s acquisition of Plaid ($5.3 billion)
7. Square’s acquisition of Afterpay ($29 billion)
8. Teladoc’s acquisition of Livongo Health ($18.5 billion)
9. Thoma Bravo’s acquisition of Proofpoint ($12.3 billion)
10. Verizon’s acquisition of TracFone Wireless ($6.25 billion)
Please note that the rankings and values mentioned above are subject to change based on the latest information available.