Datavault AI Inc. – Material Contracts Watch

from 10-K 2 pages Amendment to WISA Technologies, Inc. 2018 Long-Term Stock Incentive Plan

from 10-K 2 pages Amendment to WISA Technologies, Inc. 2018 Long-Term Stock Incentive Plan

from 10-K 8 pages Summit Wireless Technologies, Inc. 2020 Stock Incentive Plan

from 8-K 37 pages This Lease (“Lease”) Is Entered Into as of November 6, 2025 (“Effective Date”), Between Commerce Square Partners – Philadelphia Plaza, L.P., a Delaware Limited Partnership (“Landlord”), and Datavault AI Inc., a Delaware Corporation (“Tenant”). in Consideration of the Mutual Covenants Stated Below, and Intending to Be Legally Bound, Landlord and Tenant Covenant and Agree as Follows: 1. Key Defined Terms. (A) “Additional Rent” Means All Rents, Costs, and Expenses Other Than Fixed Rent That Tenant Is Obligated to Pay Landlord Pursuant to This Lease. (B) “Building” Means the Building Known as One Commerce Square Located at 2005 Market Street, Philadelphia, Pennsylvania, Containing Approximately 942,866 Rentable Square Feet. (C) “Business Hours” Means the Hours of 8:00 A.M. to 6:00 P.M. on Weekdays, and 8:00 A.M. to 2:00 P.M. on Saturdays, Excluding Building Holidays. (D) “Commencement Date” Means the Date on Which This Lease Is Fully Executed by Both Parties

from 8-K 29 pages Exclusive License Agreement

from 8-K 61 pages Stock Purchase Agreement Among Api Media Innovations Inc., a New Jersey Corporation, David Reese, Frank Tomaino, and Datavault AI Inc., a Delaware Corporation, Dated as of October 28, 2025 1

from 8-K 39 pages Securities Purchase Agreement

from 8-K 11 pages Voting and Support Agreement

from 8-K 3 pages Agreement Number: Usefimyd7uz Datavault_amend01 Td03_09-19-2025 Page 1 of 3 Ibm Confidential Ibm Embedded Software Agreement: Usefimyd7uz Amendment 1 to Transaction Document 03 This Amendment (Amendment) to the Ibm Esa Software Agreement and Transaction Document (Td) Specified Above Is Entered Into Between International Business Machines Corp. (Ibm) and Datavault, Inc. (You). This Amendment Will Remain in Effect Until Such Td Terminates or Expires. if There Is a Conflict, the Terms of This Amendment Shall Prevail Over the Terms of the Td. Except as Modified Herein, All Other Terms of the Td Remain in Full Force and Effect. Section 5 Charges Will Be Deleted and Replaced With the Following: 1. Charges Included in the Charges in This Section Are the Programs in Table 1 – Slp Catalog and Table 2 – Fixed Quantity Subscription License Programs That Bp Licenses Pursuant to the Terms of the Agreement. Bp Shall Pay Ibm the Charges on or Before the Following Dates: Due Date Amount Due Previously Paid $2,500,000 Due Upon Amendment Signature $2,500,000** **The Following Payment Plan Is Executed Upon $2,500,000 Payment Received by Ibm 12/23/2025 $3,296,183 3/232026 $2,183,676 6/23/2026 $2,183,676 9/23/2026 $2,183,676 12/23/2026 $2,183,676 3/232027 $2,183,676 6/23/2027 $2,183,676 9/23/2027 $2,183,676 12/23/2027 $2,183,676 Total Payments: $25,765,591* • Included in Payment Above Is Taxes Totaling $2,100,297. the Charges Do Not Include Any Additional Amounts Incurred Pursuant to the Section of This Agreement Entitled “Verification”. the Charges and Any Additional Charges Beyond the Charges Incurred Pursuant to the Section Entitled “Verification” Are Exclusive of Any Applicable Duties, Fees and Taxes. Bp Is Responsible for Any Such Duties, Fees and Taxes Including, but Not Limited To, Withholding Taxes* And, if as a Result of Bp Moving, Accessing Document Name: Datavault_amend01 Td03_09-19-2025.docx Transaction Id: Cbjchbcaabaalc34whih53ojnenjc2irkiqm8d9ipgrx

from 8-K 40 pages Securities Purchase Agreement

from 8-K 3 pages Amendment to Stock Purchase Agreement

from DEFA14A 3 pages Amendment to Stock Purchase Agreement

from 10-Q 19 pages Exchange Agreement

from 8-K 13 pages Placement Agency Agreement

from 8-K 4 pages Senior Secured Convertible Note Amendment

from 8-K 14 pages Exchange Agreement

from 8-K 13 pages Subsidiary Guarantee

from 8-K 28 pages Security Agreement

from 8-K 52 pages Securities Purchase Agreement

from 8-K 23 pages Registration Rights Agreement