# EDGAR Filing Document

**Accession Number:** 0001872228
**File Stem:** 0001193125-26-223754
**Filing Date:** 2026-5
**Character Count:** 110254
**Document Hash:** 5ecd91e50a1dc3e4db9cc455f149bd62
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-223754.hdr.sgml**: 20260514

**ACCESSION NUMBER**: 0001193125-26-223754

**CONFORMED SUBMISSION TYPE**: 10-Q

**PUBLIC DOCUMENT COUNT**: 45

**CONFORMED PERIOD OF REPORT**: 20260331

**FILED AS OF DATE**: 20260514

**DATE AS OF CHANGE**: 20260514

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Thayer Ventures Acquisition Corp II
- **CENTRAL INDEX KEY:** 0001872228
- **STANDARD INDUSTRIAL CLASSIFICATION:** BLANK CHECKS [6770]
- **ORGANIZATION NAME:** 05 Real Estate & Construction
- **EIN:** 981795713
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 10-Q
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42641
- **FILM NUMBER:** 26978164

**BUSINESS ADDRESS:**
- **STREET 1:** 25852 MCBEAN PARKWAY
- **STREET 2:** SUITE 508
- **CITY:** VALENCIA
- **STATE:** CA
- **ZIP:** 91355
- **BUSINESS PHONE:** (415) 782-1414

**MAIL ADDRESS:**
- **STREET 1:** 25852 MCBEAN PARKWAY
- **STREET 2:** SUITE 508
- **CITY:** VALENCIA
- **STATE:** CA
- **ZIP:** 91355

?xml version='1.0' encoding='ASCII'? 10-Q

##### [**Table of Contents**](#toc)

### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

### FORM 10-Q

#### (Mark One)
☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

#### For the quarterly period ended March 31, 2026
☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

#### For the transition period from to

#### Commission File Number: 001-42641

## THAYER VENTURES ACQUISITION CORPORATION II

#### (Exact name of registrant as specified in its charter)

---

| | |
|:---|:---|
| Cayman Islands | 98-1795713 |
| (State or other jurisdiction of<br>incorporation or organization) | (I.R.S. Employer<br>Identification No.) |
| 25852 McBean Parkway Suite 508 Valencia, CA | 91355 |
| (Address of principal executive offices) | (Zip Code) |

---

#### (415)782-1414

#### (Registrant's telephone number, including area code)

#### Not Applicable

#### (Former name, former address and former fiscal year, if changed since last report)

#### Securities registered pursuant to Section 12(b) of the Act:

---

| | | |
|:---|:---|:---|
| Title of each class | Trading<br>Symbol(s) | Name of each exchange<br>on which registered |
| Units, each consisting of one Class A Ordinary Share, par value $0.0001 per share, and one Right entitling the holder to receive one-tenth of a Class A Ordinary Share | TVAIU | The Nasdaq Stock Market LLC |
| Class A Ordinary Shares, par value $0.0001 per<br>share | TVAI | The Nasdaq Stock Market LLC |
| Rights | TVAIR | The Nasdaq Stock Market LLC |

---

Check whether the issuer (1) filed all reports required to be filed by Section 13 or 15(d) of the Securities and Exchange Act of 1934, as amended (the "Exchange Act") during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T(§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See definitions of "large accelerated filer", "accelerated filer", "smaller reporting company", and "emerging growth company" in Rule 12b-2 of the Exchange Act.

---

| | | | |
|:---|:---|:---|:---|
| Large accelerated filer | ☐ | Accelerated filer | ☐ |
| Non-accelerated filer | ☒ | Smaller reporting company | ☒ |
|  |  | Emerging growth company | ☒ |

---

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☒ No ☐

As of May 14, 2026, there were 20,487,500 Class A Ordinary Shares, par value $0.0001 per share, and 6,708,333 Class B Ordinary Shares, par value $0.0001 per share, of the registrant issued and outstanding.

------

##### [**Table of Contents**](#toc)

#### THAYER VENTURES ACQUISITION CORPORATION II

#### FORM 10-Q FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2026

#### **TABLE OF CONTENTS**

---

| | |
|:---|:---|
|  | Page |
|  [Part I. Financial Information](#fin121309_1) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [Item 1. Financial Statements](#fin121309_2) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [Condensed Balance Sheets as of March 31, 2026 (Unaudited) and December 31, 2025](#fin121309_3) | 1 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [Condensed Statements of Operations for the Three Months Ended March 31, 2026 and 2025 (Unaudited)](#fin121309_4) | 2 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [Condensed Statements of Changes in Shareholders' Deficit for the Three Months Ended March 31, 2026 and 2025 (Unaudited)](#fin121309_5) | 3 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [Condensed Statements of Cash Flows for the Three Months Ended March 31, 2026 and 2025 (Unaudited)](#fin121309_6) | 4 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [Notes to Condensed Financial Statements (Unaudited)](#fin121309_7) | 5 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations](#fin121309_8) | 17 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [Item 3. Quantitative and Qualitative Disclosures Regarding Market Risk](#fin121309_9) | 19 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [Item 4. Controls and Procedures](#fin121309_10) | 19 |
|  [Part II. Other Information](#fin121309_11) | 20 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [Item 1. Legal Proceedings](#fin121309_12) | 20 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [Item 1A. Risk Factors](#fin121309_13) | 20 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [Item 2. Unregistered Sales of Equity Securities and Use of Proceeds](#fin121309_14) | 20 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [Item 3. Defaults Upon Senior Securities](#fin121309_15) | 20 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [Item 4. Mine Safety Disclosures](#fin121309_16) | 20 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [Item 5. Other Information](#fin121309_17) | 20 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [Item 6. Exhibits](#fin121309_18) | 21 |
|  [Part III. Signatures](#fin121309_19) | 22 |

---

------

##### [**Table of Contents**](#toc)
PART I - FINANCIAL INFORMATION

#### Item 1. Financial Statements.

#### THAYER VENTURES ACQUISITION CORPORATION II

#### CONDENSED BALANCE SHEETS

---

| | | |
|:---|:---|:---|
|  | March 31,<br> 2026 | December 31,<br> 2025 |
|  | **(unaudited)** | |
| Assets |  |  |
| Current assets |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cash | $131087 | $257966 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Prepaid expenses | 159831 | 178897 |
| Total Current Assets | 290918 | 436863 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Long-term prepaid insurance |  | 23832 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Investments held in Trust Account | 208178661 | 206357012 |
| Total Assets | $208469579 | $206817707 |
| Liabilities, Ordinary Shares Subject to Possible Redemption and Shareholders' Deficit |  |  |
| Current Liabilities |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accounts payable and accrued expenses | $94853 | $26100 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accrued offering costs | 128100 | 128100 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Due to related party | 1300 | 1300 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;California franchise taxes payable | 498282 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Promissory note - related party | 10 | 10 |
| Total Current Liabilities | 722545 | 155510 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred legal fees | 1011279 | 920140 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred underwriting fee payable | 7568750 | 7568750 |
| Total Liabilities | 9302574 | 8644400 |
| Commitments and Contingencies (Note 5) |  |  |
| Class A ordinary shares subject to possible redemption, 20,125,000 shares at redemption value of $10.32 and $10.25 per share as of March 31, 2026 and December 31, 2025, respectively | 207680379 | 206357012 |
| Shareholders' Deficit |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Preference shares, $0.0001 par value; 1,000,000 shares authorized; none issued or outstanding as of March 31, 2026 and December 31, 2025 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Class A ordinary shares, $0.0001 par value; 100,000,000 shares authorized; 362,500 (excluding 20,125,000 shares subject to possible redemption) issued and outstanding as of March 31, 2026 and December 31, 2025 | 36 | 36 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Class B ordinary shares, $0.0001 par value; 10,000,000 shares authorized; 6,708,333 shares issued and outstanding as of March 31, 2026 and December 31, 2025 | 671 | 671 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Additional paid-in capital |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accumulated deficit | (8514081) | (8184412) |
| Total Shareholders' Deficit | (8513374) | (8183705) |
| Total Liabilities, Ordinary Shares Subject to Possible Redemption and Shareholders' Deficit | $208469579 | $206817707 |

---

The accompanying notes are an integral part of the unaudited condensed financial statements.

------

#### **Table of Contents**

#### THAYER VENTURES ACQUISITION CORPORATION II

#### CONDENSED STATEMENTS OF OPERATIONS
(UNAUDITED)

---

| | | |
|:---|:---|:---|
|  | For the Three Months Ended<br> March 31, | For the Three Months Ended<br> March 31, |
|  | 2026 | 2025 |
| General and administrative costs | $329669 | $18101 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Loss from operations | (329669) | (18101) |
| Other income (expense): |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;California franchise tax | (498282) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Compensation expense |  | (145000) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Earnings from investments held in Trust Account | 1821649 |  |
| Total other income, net | 1323367 | (145000) |
| Net income (loss) | $993698 | $(163101) |
| Weighted average redeemable Class A ordinary shares outstanding – basic and diluted | 20125000 |  |
| Basic and diluted net income per redeemable Class A ordinary share | $0.04 | $— |
| Weighted average non-redeemable Class A and Class B ordinary shares outstanding – basic and diluted | 7070833 | 5833333 |
| Basic and diluted net income (loss) per non-redeemable Class A and Class B ordinary share | $0.04 | $(0.03) |

---

The accompanying notes are an integral part of the unaudited condensed financial statements.

------

#### **Table of Contents**

#### THAYER VENTURES ACQUISITION CORPORATION II

#### CONDENSED STATEMENTS OF CHANGES IN SHAREHOLDERS' DEFICIT
(UNAUDITED)

#### FOR THE THREE MONTHS ENDED MARCH 31, 2026

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
|  | Class A<br> Ordinary Shares | Class A<br> Ordinary Shares | Class B<br> Ordinary Shares | Class B<br> Ordinary Shares | Additional<br> Paid-in<br> Capital | Accumulated<br> Deficit | Total<br> Shareholders'<br> Deficit |
|  | Shares | Amount | Shares | Amount | | | |
| Balance — January 1, 2026 | 362500 | $36 | 6708333 | $671 | $— | $(8184412) | $(8183705) |
| Accretion for Class A ordinary shares to redemption amount |  |  |  |  |  | (1323367) | (1323367) |
| Net income |  |  |  |  |  | 993698 | 993698 |
| Balance – March 31, 2026 (unaudited) | 362500 | $36 | 6708333 | $671 | $— | $(8514081) | $(8513374) |

---

#### FOR THE THREE MONTHS ENDED MARCH 31, 2025

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
|  | Class A<br> Ordinary Shares | Class A<br> Ordinary Shares | Class B<br> Ordinary Shares | Class B<br> Ordinary Shares | Additional<br> Paid-in<br> Capital | Accumulated<br> Deficit | Total<br> Shareholders'<br> Deficit |
|  | Shares | Amount | Shares | Amount | | | |
| Balance — January 1, 2025 |  | $— | 6708333 | $671 | $24329 | $(64417) | $(39417) |
| Accretion for Class A ordinary shares to redemption amount |  |  |  |  | 145000 |  | 145000 |
| Net loss |  |  |  |  |  | (163101) | (163101) |
| Balance – March 31, 2025 (unaudited) |  | $— | 6708333 | $671 | $169329 | $(227518) | $(57518) |

---

The accompanying notes are an integral part of the unaudited condensed financial statements.

------

#### **Table of Contents**

#### THAYER VENTURES ACQUISITION CORPORATION II

#### CONDENSED STATEMENTS OF CASH FLOWS
(UNAUDITED)

---

| | | |
|:---|:---|:---|
|  | For the Three<br> Months Ended<br> March 31,<br>2026 | For the Three<br> Months Ended<br> March 31,<br>2025 |
|  Cash Flows from Operating Activities: |  |  |
|  Net income (loss) | $993698 | $(163101) |
|  Adjustments to reconcile net income (loss) to net cash used in operating activities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Compensation expense |  | 145000 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Payment of operation costs through promissory note |  | 10001 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Deferred legal fees | 91139 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Earnings from investments held in Trust Account | (1821649) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Changes in operating assets and liabilities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Prepaid expenses | 42898 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; California franchise taxes payable | 498282 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Accounts payable and accrued expenses | 68753 | 8100 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Net cash used in operating activities | (126879) |  |
|  Net Change in Cash | (126879) |  |
|  Cash – Beginning of period | 257966 |  |
|  Cash – End of period | $131087 | $— |
|  Non-Cash investing and financing activities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Deferred offering costs included in accrued offering costs | $— | $27289 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Deferred offering costs included in deferred legal fees | $— | $450078 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Deferred offering costs paid through promissory note – related party | $— | $40015 |

---

The accompanying notes are an integral part of the unaudited condensed financial statements.

------

#### **Table of Contents**

#### THAYER VENTURES ACQUISITION CORPORATION II

#### NOTES TO CONDENSED FINANCIAL STATEMENTS

#### MARCH 31, 2026
(Unaudited)

#### NOTE 1 — DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS
Thayer Ventures Acquisition Corporation II (the "Company") is a blank check company incorporated as a Cayman Islands exempt company on April 23, 2024. The Company was formed for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses (the "Business Combination"). The Company is an emerging growth company and, as such, the Company is subject to all of the risks associated with emerging growth companies.

As of March 31, 2026, the Company had not commenced any operations. All activity for the period from April 23, 2024 (inception) through March 31, 2026 relates to the Company's formation, the initial public offering (the "Initial Public Offering"), which is described below, and subsequent to the Initial Public Offering, identifying a target company for a Business Combination. The Company will not generate any operating revenues until after the completion of its initial Business Combination, at the earliest. The Company will generate non-operating income in the form of earnings on the proceeds derived from the Initial Public Offering.

The registration statement for the Company's Initial Public Offering was declared effective on May 14, 2025. On May 16, 2025, the Company consummated the Initial Public Offering of 20,125,000 units (the "Units" and, with respect to the Class A ordinary shares included in the Units being offered, the "Public Shares"), which includes the full exercise by the underwriters of their over-allotment option in the amount of 2,625,000 Units, at $10.00 per Unit, generating gross proceeds of $201,250,000. Each Unit consists of one Public Share and one right ("Right") to receive one tenth (1/10) of a Class A ordinary share upon the consummation of an initial Business Combination ("Public Right").

Simultaneously with the closing of the Initial Public Offering, the Company consummated the sale of 362,500 Units (the "Private Placement Units") at a price of $10.00 per Private Placement Unit, in a private placement to the Company's sponsor, Thayer Ventures Acquisition Holdings II LLC, a Delaware limited liability company (the "Sponsor"), generating gross proceeds of $3,625,000. Each Private Placement Unit consists of one Private Placement Share and one Right to receive one tenth (1/10) of a Class A ordinary share upon the consummation of an initial Business Combination ("Private Rights").

Transaction costs amounted to $10,727,318, consisting of $1,500,000 of cash underwriting fees (net of $2,000,000 underwriters' reimbursement), $7,568,750 of deferred underwriting fees, and $1,658,568 of other offering costs.

The Company's management has broad discretion with respect to the specific application of the net proceeds of the Initial Public Offering and the sale of Private Placement Units, although substantially all of the net proceeds are intended to be applied generally toward consummating a Business Combination. There is no assurance that the Company will be able to complete a Business Combination successfully. The Company must complete one or more initial Business Combinations having an aggregate fair market value of at least 80% of the value of the funds held in the Trust Account (as defined below) (net of amounts withdrawn to pay taxes, if any, ("permitted withdrawals")) at the time of the agreement to enter into the initial Business Combination. However, the Company only intends to complete a Business Combination if the post-transaction company owns or acquires 50% or more of the voting securities of the target or otherwise acquires a controlling interest in the target sufficient for it not to be required to register as an investment company under the Investment Company Act of 1940, as amended (the "Investment Company Act").

Following the closing of the Initial Public Offering, on May 16, 2025, an amount of $201,250,000 ($10.00 per Unit) from the net proceeds of the sale of the Units and the Private Placement Units was placed in the trust account (the "Trust Account"), with Continental Stock Transfer & Trust Company acting as trustee. The funds are to be held in cash, including demand deposit accounts at a bank, or invested only in U.S. government treasury obligations with a maturity of 185 days or less or in money market funds meeting certain conditions under Rule 2a-7 under the Investment Company Act which invest only in direct U.S. government treasury obligations, as determined by the Company, until the earlier of (i) the completion of a Business Combination and (ii) the distribution of the Trust Account as described below.

The Company will provide the holders (the "Public Shareholders") of the Company's outstanding shares of Class A ordinary shares, par value $0.0001 per share, sold in the Initial Public Offering (the "Public Shares") with the opportunity to redeem all or a portion of their Public Shares upon the completion of a Business Combination either (i) in connection with a shareholder meeting called to approve the Business Combination or (ii) by means of a tender offer. The decision as to whether the Company will seek shareholder approval of a Business Combination or conduct a tender offer will be made by the Company, solely in its discretion. The Public Shareholders will be entitled to redeem their Public Shares for a pro rata portion of the amount then held in the Trust Account (initially $10.00 per Public Share).

------

#### **Table of Contents**

#### THAYER VENTURES ACQUISITION CORPORATION II

#### NOTES TO CONDENSED FINANCIAL STATEMENTS

#### MARCH 31, 2026
(Unaudited)

The per share amount to be distributed to Public Shareholders who redeem their Public Shares will not be reduced by the deferred underwriting commissions the Company will pay to the underwriter (as discussed in Note 5). These Public Shares subject to possible redemption were classified as temporary equity upon the completion of the Initial Public Offering in accordance with Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic 480, "Distinguishing Liabilities from Equity." If the Company seeks shareholder approval, the Company will proceed with a Business Combination if a majority of the shares voted are voted in favor of the Business Combination. The Company will not redeem the Public Shares in connection with a Business Combination in an amount that would cause its net tangible assets to be less than $5,000,001. If a shareholder vote is not required by law and the Company does not decide to hold a shareholder vote for business or other legal reasons, the Company will, pursuant to its amended and restated Certificate of Incorporation (the "Certificate of Incorporation"), conduct the redemptions pursuant to the tender offer rules of the U.S. Securities and Exchange Commission ("SEC") and file tender offer documents with the SEC prior to completing a Business Combination. If, however, shareholder approval of the transaction is required by law, or the Company decides to obtain shareholder approval for business or legal reasons, the Company will offer to redeem shares in conjunction with a proxy solicitation pursuant to the proxy rules and not pursuant to the tender offer rules.

Additionally, each Public Shareholder may elect to redeem their Public Shares irrespective of whether they vote for or against the proposed transaction or do not vote at all or are not a holder of record of Public Shares on the record date established in connection with a Business Combination. If the Company seeks shareholder approval in connection with a Business Combination, the initial shareholders (as defined below) will agree to vote their Founder Shares (as defined below in Note 4) and any Public Shares purchased during or after the Initial Public Offering in favor of a Business Combination. In addition, the initial shareholders will agree to waive their redemption rights with respect to their Founder Shares and Public Shares in connection with the completion of a Business Combination.

The Amended and Restated memorandum and articles of association provide that a Public Shareholder, together with any affiliate of such shareholder or any other person with whom such shareholder is acting in concert or as a "group" (as defined under Section 13 of the Exchange Act), will be restricted from redeeming its shares with respect to more than an aggregate of 15% or more of the Public Shares, without the prior consent of the Company.

The holders of the Founder Shares (the "initial shareholders") agree not to propose an amendment to the Articles of Association to modify the substance or timing of the Company's obligation to redeem 100% of the Public Shares if the Company does not complete a Business Combination within the Combination Period (as defined below) or with respect to any other material provisions relating to shareholders' rights or pre-initial Business Combination activity, unless the Company provides the Public Shareholders with the opportunity to redeem their Public Shares in conjunction with any such amendment.

If the Company is unable to complete a Business Combination within 21 months from the closing of the Initial Public Offering (February 16, 2027) (the "Combination Period"), the Company will (i) cease all operations except for the purpose of winding up; (ii) as promptly as reasonably possible, but not more than ten business days thereafter, redeem the Public Shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account, including interest (which interest shall be net of permitted withdrawals, including for taxes payable, if any, and up to $100,000 of interest to pay dissolution expenses), divided by the number of then outstanding Public Shares, which redemption will completely extinguish Public Shareholders' rights as shareholders (including the right to receive further liquidating distributions, if any); and (iii) as promptly as reasonably possible following such redemption, subject to the approval of the remaining shareholders and the board of directors, liquidate and dissolve, subject in each case, to the Company's obligations under Cayman law to provide for claims of creditors and the requirements of other applicable law.

The initial shareholders agreed to waive their rights to liquidating distributions from the Trust Account with respect to the Founder Shares if the Company fails to complete a Business Combination within the Combination Period. However, if the initial shareholders acquire Public Shares in or after the Initial Public Offering, they will be entitled to liquidating distributions from the Trust Account with respect to such Public Shares if the Company fails to complete a Business Combination within the Combination Period. The underwriter agreed to waive its rights to the deferred underwriting commission (see Note 5) held in the Trust Account in the event the Company does not complete a Business Combination within in the Combination Period and, in such event, such amounts will be included with the other funds held in the Trust Account that will be available to fund the redemption of the Public Shares. In the event of such distribution, it is possible that the per share value of the residual assets remaining available for distribution (including Trust Account assets) will be only $10.00. In order to protect the amounts held in the Trust Account, the Sponsor agreed to be liable to the Company if and to the extent any claims by a third party (except for the Company's independent registered public accounting firm) for services rendered or products sold to the Company, or a prospective target business with which the Company has entered into a letter of intent, confidentiality or other similar agreement or Business Combination agreement (a "Target"), reduce the amount of funds in the Trust Account to below the lesser of (i) $10.00 per Public Share and (ii) the actual amount per Public Share held in the Trust Account as of the date of the liquidation of the Trust Account, if less than $10.00 per Public Share due to reductions in the value of the trust assets, less permitted withdrawals, provided that such liability will not apply to any claims by a third party or prospective target business who executed a waiver of any and all rights to the monies held in the Trust Account (whether or not such waiver is enforceable) nor will it apply to any claims under the Company's indemnity of the underwriter of the offering against certain liabilities, including liabilities under the Securities Act of 1933, as amended (the "Securities Act"). The Company will seek to reduce the possibility that the Sponsor will have to indemnify the Trust Account due to claims of creditors by endeavoring to have all vendors, service providers (excluding the Company's independent registered public accounting firm), prospective target businesses or other entities with which the Company does business, execute agreements with the Company waiving any right, title, interest or claim of any kind in or to monies held in the Trust Account.

------

#### **Table of Contents**

#### THAYER VENTURES ACQUISITION CORPORATION II

#### NOTES TO CONDENSED FINANCIAL STATEMENTS

#### MARCH 31, 2026
(Unaudited)

#### NOTE 2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

#### Basis of Presentation
The accompanying unaudited condensed financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP") for interim financial information and in accordance with the instructions to Form 10-Q and Article 8 of Regulation S-X of the U.S. Securities and Exchange Commission ("SEC"). Certain information or footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted, pursuant to the rules and regulations of the SEC for interim financial reporting. Accordingly, they do not include all the information and footnotes necessary for a complete presentation of financial position, results of operations, or cash flows. In the opinion of management, the accompanying unaudited condensed financial statements include all adjustments, consisting of a normal recurring nature, which are necessary for a fair presentation of the financial position, operating results and cash flows for the periods presented.

The accompanying unaudited condensed financial statements should be read in conjunction with the Company's Annual Report on Form 10-K, as filed with the SEC on March 30, 2026. The interim results for the three ended March 31, 2026 are not necessarily indicative of the results to be expected for the year ending December 31, 2026 or for any future periods.

#### Liquidity, Capital Resources, and Going Concern
The Company's liquidity needs up to March 31, 2026 have been satisfied through a loan under an unsecured promissory note from the Sponsor of up to $400,000 (see Note 4). As of March 31, 2026, the Company had $131,087 in cash and a working capital deficit of $431,627.

In order to fund working capital deficiencies or finance transaction costs in connection with a Business Combination, the Sponsor or an affiliate of the Sponsor, or certain of the Company's officers and directors may, but are not obligated to, loan the Company funds as may be required ("Working Capital Loans"). If the Company completes a Business Combination, the Company would repay such loaned amounts at that time. Up to $1,500,000 of such Working Capital Loans may be converted into Units of the post-Business Combination entity at a price of $10.00 per Unit. The Units would be identical to the Private Placement Units. As of March 31, 2026 and December 31, 2025, the Company had no borrowings under the Working Capital Loans.

In connection with the Company's assessment of going concern considerations in accordance with ASC 204-50, "Presentation of Financial Statements—Going Concern," the Company has incurred and expects to continue to incur significant costs in pursuit of its financing and acquisition plans. In addition, management has determined that if the Company is unable to complete an initial Business Combination within the Combination Period, then the Company will cease all operations except for the purpose of liquidating. These conditions raise substantial doubt about the Company's ability to continue as a going concern. Management plans to address this uncertainty through a Business Combination. There is no assurance that the Company's plans to consummate a Business Combination will be successful within the Combination Period. The financial statements do not include any adjustments that might result from the outcome of this uncertainty.

#### Emerging Growth Company
The Company is an "emerging growth company," as defined in Section 2(a) of the Securities Act, as modified by the Jumpstart Our Business Startups Act of 2012 (the "JOBS Act"), and it may take advantage of certain exemptions from various reporting requirements that are applicable to other public companies that are not emerging growth companies including, but not limited to, not being required to comply with the independent registered public accounting firm attestation requirements of Section 404 of the Sarbanes-Oxley Act, reduced disclosure obligations regarding executive compensation in its periodic reports and proxy statements, and exemptions from the requirements of holding a nonbinding advisory vote on executive compensation and shareholder approval of any golden parachute payments not previously approved.

Further, Section 102(b)(1) of the JOBS Act exempts emerging growth companies from being required to comply with new or revised financial accounting standards until private companies (that is, those that have not had a Securities Act registration statement declared effective or do not have a class of securities registered under the Exchange Act) are required to comply with the new or revised financial accounting standards. The JOBS Act provides that an emerging growth company can elect to opt out of the extended transition period and comply with the requirements that apply to non-emerging growth companies but any such an election to opt out is irrevocable. The Company has elected not to opt out of such extended transition period, which means that when a standard is issued or revised and it has different application dates for public or private companies, the Company, as an emerging growth company, can adopt the new or revised standard at the time private companies adopt the new or revised standard. This may make comparison of the Company's financial statements with another public company that is neither an emerging growth company nor an emerging growth company that has opted out of using the extended transition period difficult or impossible because of the potential differences in accounting standards used.

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#### **Table of Contents**

#### THAYER VENTURES ACQUISITION CORPORATION II

#### NOTES TO CONDENSED FINANCIAL STATEMENTS

#### MARCH 31, 2026
(Unaudited)

#### Use of Estimates
The preparation of the unaudited condensed financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the unaudited condensed financial statements and the reported amounts of expenses during the reporting period.

Making estimates requires management to exercise significant judgment. It is at least reasonably possible that the estimate of the effect of a condition, situation or set of circumstances that existed at the date of the unaudited condensed financial statements, which management considered in formulating its estimate, could change in the near term due to one or more future confirming events. Accordingly, the actual results could differ significantly from those estimates.

#### Cash and Cash Equivalents
The Company considers all short-term investments with an original maturity of three months or less when purchased to be cash equivalents. The Company had $131,087 and $257,966 in cash and no cash equivalents as of March 31, 2026 and December 31, 2025, respectively.

#### Investments Held in Trust Account
As of March 31, 2026 and December 31, 2025, assets held in the Trust Account were held in a money market fund and are classified as trading securities. Trading securities are presented on the balance sheets at fair value at the end of each reporting period. Interest on the investment in the money market fund are included in earning from investments held in Trust Account in the accompanying statements of operations. The estimated fair values of investments held in Trust Account are determined using available market information. Fair values of these investments are determined by Level 1 inputs utilizing quoted prices (unadjusted) in active markets for identical assets. As of March 31, 2026 and December 31, 2025, the Company reported $208,178,661 and $206,357,012 in investments held in the Trust Account.

#### Concentration of Credit Risk
Financial instruments that potentially subject the Company to concentrations of credit risk consist of a cash account in a financial institution, which, at times, may exceed the Federal Deposit Insurance Corporation coverage limit of $250,000. Any loss incurred or a lack of access to such funds could have a significant adverse impact on the Company's financial condition, results of operations, and cash flows.

#### Offering Costs
The Company complies with the requirements of ASC 340-10-S99 and SEC Staff Accounting Bulletin Topic 5A, "Expenses of Offering." Offering costs consist principally of professional and registration fees that are related to the Initial Public Offering. FASB ASC 470-20, "Debt with Conversion and Other Options," addresses the allocation of proceeds from the issuance of convertible debt into its equity and debt components. The Company applies this guidance to allocate Initial Public Offering proceeds from the Units between Class A ordinary shares and Rights, using the residual method by allocating Initial Public Offering proceeds first to assigned value of the Public Rights and then to the Class A ordinary shares. Offering costs allocated to the Public Shares were charged to temporary equity, and offering costs allocated to the Public Rights and Private Placement Units were charged to shareholders' deficit as Public Rights and Private Rights, after management's evaluation, were accounted for under equity treatment.

#### Fair Value of Financial Instruments
The fair value of the Company's assets and liabilities, which qualify as financial instruments under FASB ASC 820, "Fair Value Measurements and Disclosures," approximates the carrying amounts represented in the balance sheets, primarily due to their short-term nature.

#### Income Taxes
The Company accounts for income taxes under ASC Topic 740, "Income Taxes," which requires an asset and liability approach to financial accounting and reporting for income taxes. Deferred income tax assets and liabilities are computed for differences between the financial statements and tax bases of assets and liabilities that will result in future taxable or deductible amounts, based on enacted tax laws and rates applicable to the periods in which the differences are expected to affect taxable income. Valuation allowances are established, when necessary, to reduce deferred tax assets to the amount expected to be realized.

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#### **Table of Contents**

#### THAYER VENTURES ACQUISITION CORPORATION II

#### NOTES TO CONDENSED FINANCIAL STATEMENTS

#### MARCH 31, 2026
(Unaudited)

ASC Topic 740 prescribes a recognition threshold and a measurement attribute for the financial statement recognition and measurement of tax positions taken or expected to be taken in a tax return. For those benefits to be recognized, a tax position must be more likely than not to be sustained upon examination by taxing authorities. The Company's management determined that the Cayman Islands is the Company's major tax jurisdiction. The Company recognizes accrued interest and penalties related to unrecognized tax benefits as income tax expense. As of March 31, 2026 and December 31, 2025, there were no unrecognized tax benefits and no amounts accrued for interest and penalties. The Company is currently not aware of any issues under review that could result in significant payments, accruals or material deviation from its position.

The Company is considered to be an exempted Cayman Islands company with no connection to any other taxable jurisdiction and is presently not subject to income taxes or income tax filing requirements in the Cayman Islands or the United States. As such, the Company's tax provision was zero for the periods presented.

#### California Franchise Tax
The Company is subject to California's franchise tax, For the three months ended March 31, 2026 and 2025, the Company recognized California franchise tax expense of $498,282 and $0, respectively on the condensed statements of operations. At March 31, 2026 and December 31, 2025, the company reported $498,282 and $0, respectively, as California franchise tax payable on the condensed balance sheets.

#### Share Rights
The Company accounts for the Public and Private Rights issued in connection with the Initial Public Offering and the private placement in accordance with the guidance contained in FASB ASC Topic 815, "Derivatives and Hedging". Accordingly, the Company evaluated and classified the Rights under equity treatment at their assigned value.

#### Class A Ordinary Shares Subject to Possible Redemption
The Public Shares contain a redemption feature which allows for the redemption of such Public Shares in connection with the Company's liquidation, or if there is a shareholder vote or tender offer in connection with the Company's initial Business Combination. In accordance with ASC 480-10-S99,the Company classifies Public Shares subject to possible redemption outside of permanent equity as the redemption provisions are not solely within the control of the Company. The Company recognizes changes in redemption value immediately as they occur and will adjust the carrying value of redeemable shares to equal the redemption value at the end of each reporting period. Immediately upon the closing of the Initial Public Offering, the Company recognized the accretion from initial book value to redemption value. The change in the carrying value of redeemable shares will result in charges against additional paid-in capital (to the extent available) and accumulated deficit. Accordingly, as of March 31, 2026 and December 31, 2025, Class A ordinary shares subject to possible redemption are presented at redemption value as temporary equity, outside of the shareholders' deficit section of the Company's balance sheets. The Class A ordinary shares subject to possible redemption reflected in the condensed balance sheets are reconciled in the following table:

---

| | | |
|:---|:---|:---|
|  | Shares | Amount |
| Gross proceeds | 20125000 | $201250000 |
| Less: |  |  |
| Proceeds allocated to Share Rights |  | (4025000) |
| Class A ordinary shares issuance costs |  | (10484012) |
| Plus: |  |  |
| Accretion of Class A ordinary shares subject to redemption amount |  | 19616024 |
| December 31, 2025 | 20125000 | $206357012 |
| Plus: |  |  |
| Increase in redemption value of shares subject to possible redemption |  | 1323367 |
| March 31, 2026 | 20125000 | $207680379 |

---

#### Net Income (Loss) Per Ordinary Share
The Company complies with accounting and disclosure requirements of ASC Topic 260, "Earnings Per Share." The Company has two classes of ordinary shares, which are referred to as redeemable Class A ordinary shares and non-redeemable Class A and Class B ordinary shares. Income and losses are shared pro rata between the two classes of ordinary shares. This presentation assumes a Business Combination as the most likely outcome. Net income (loss) per ordinary share is calculated by dividing the net income (loss) by the weighted average ordinary shares outstanding for the respective period.

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#### **Table of Contents**

#### THAYER VENTURES ACQUISITION CORPORATION II

#### NOTES TO CONDENSED FINANCIAL STATEMENTS

#### MARCH 31, 2026
(Unaudited)

The calculation of diluted net income (loss) per ordinary share does not consider the effect of the rights issued in connection with the Initial Public Offering and the Private Placement to receive one tenth (1/10) of one Class A ordinary share upon the consummation of an initial Business Combination in the calculation of diluted income per ordinary share, because their exercise is contingent upon future events. Accretion associated with the redeemable Class A ordinary shares is excluded from earnings per ordinary share as the redemption value approximates fair value.

The Company has considered the effect of Class B ordinary shares that were excluded from the weighted average number as they were contingent on the exercise of over-allotment option by the underwriters. Since the contingency was satisfied, the Company included these shares in the weighted average number as of the date they were no longer contingent to determine the dilutive impact of these shares.

The following table reflects the calculation of basic and diluted net income (loss) per ordinary share:

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | For the Three Months ended<br> March 31, 2026 | For the Three Months ended<br> March 31, 2026 | For the Three Months ended<br> March 31, 2025 | For the Three Months ended<br> March 31, 2025 |
|  | Redeemable<br> Class A<br> Ordinary<br> Shares | Non-redeemable<br> Class A and<br> Class B<br> Ordinary<br> Shares | Redeemable<br> Class A<br> Ordinary<br> Shares | Non-redeemable<br> Class A and<br> Class B<br> Ordinary<br> Shares |
| Basic and diluted net income (loss) per ordinary share |  |  |  |  |
| Basic and diluted net income (loss) per ordinary share |  |  |  |  |
| Numerator: | $735340 | $258358 | $— | $(163101) |
| Allocation of net income (loss) |  |  |  |  |
| Denominator: | 20125000 | 7070833 |  | 5833333 |
| Basic and diluted weighted average ordinary shares outstanding | $0.04 | $0.04 | $— | $(0.03) |

---

#### Share-Based Compensation
The Company records share-based compensation in accordance with FASB ASC Topic 718, "Compensation-Share Compensation" ("ASC 718"), guidance to account for its share-based compensation. It defines a fair value-based method of accounting for an employee share option or similar equity instrument. The Company recognizes all forms of share-based payments at their fair value on the grant date, which are based on the estimated number of awards that are ultimately expected to vest. Grants of share-based payment awards issued to non-employees for services rendered are recorded at the fair value of the share-based payment, which is the more readily determinable value. The grants are amortized on a straight-line basis over the requisite service periods, which is generally the vesting period. If an award is granted, but vesting does not occur, any previously recognized compensation cost is reversed in the period related to the termination of service.

#### Recent Accounting Standards
In November 2024, the FASB issued ASU 2024-03, "Income Statement-Reporting Comprehensive Income-Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses", requiring public entities to disclose additional information about specific expense categories in the notes to the financial statements on an interim and annual basis. ASU 2024-03 is effective for fiscal years beginning after December 15, 2026, and for interim periods beginning after December 15, 2027, with early adoption permitted. The Company is currently evaluating the impact of adopting ASU 2024-03.

The Company's management does not believe that any other recently issued, but not yet effective, accounting standard updates, if currently adopted, would have a material effect on the accompanying unaudited condensed financial statements.

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#### **Table of Contents**

#### THAYER VENTURES ACQUISITION CORPORATION II

#### NOTES TO CONDENSED FINANCIAL STATEMENTS

#### MARCH 31, 2026
(Unaudited)

#### NOTE 3. INITIAL PUBLIC OFFERING
Pursuant to the Initial Public Offering on May 16, 2025, the Company sold 20,125,000 Units, which includes the full exercise by the underwriters of their over-allotment option in the amount of 2,625,000 Units, at a price of $10.00 per Unit. Each Unit consists of one Class A ordinary share and one Public Right. Each Public Right entitles the holder to receive one-tenth of one Class A ordinary share (see Note 6).

#### NOTE 4. RELATED PARTY TRANSACTIONS

#### Founder Shares
On May 6, 2024, the Company issued 3,593,750 Class B ordinary shares to the Sponsor for $25,000, or approximately $0.007 per share. On September 9, 2024, in connection with a recapitalization, the Company amended the terms of the subscription agreement to issue the Sponsor an additional 2,156,250 Founder Shares for no additional consideration, following which the Sponsor held 5,750,000 Founder Shares. On January 28, 2025, the Company further amended the terms of the subscription agreement, following which the Sponsor holds 5,031,250 Founder Shares. On March 11, 2025, the Company further amended the terms of the subscription agreement, following which the Sponsor holds 6,708,333 Founder Shares. All share amounts have been retroactively restated to reflect this adjustment. The initial shareholders agreed to forfeit up to 875,000 Founder Shares to the extent that the over-allotment option is not exercised in full by the underwriter. The forfeiture will be adjusted to the extent that the over-allotment option is not exercised in full by the underwriter so that the Founder Shares will represent 20.0% of the Company's issued and outstanding shares after the Initial Public Offering. If the Company increases or decreases the size of the offering, the Company will effect a capitalization of reserves or share surrender back to capital, or other appropriate recapitalization mechanism as applicable, immediately prior to the consummation of the Initial Public Offering so as to maintain the ownership of the initial shareholders at 20.0% of the Company's issued and outstanding ordinary shares upon the consummation of the Initial Public Offering. On May 16, 2025, the underwriters exercised their over-allotment option in full as part of the closing of the Initial Public Offering. As such, the 875,000 Founder Shares are no longer subject to forfeiture. The Sponsor is holding 6,583,333 Founder Shares, after giving effect to the Founder Share transfers described below.

In March and April 2025, the Sponsor transferred a total of 125,000 Founder Shares to the five independent directors (25,000 each) for an aggregate consideration of $0.004 per share, or an aggregate total amount of $466. The transfer of the Founder Shares to the independent director nominees are in the scope of FASB ASC Topic 718, "Compensation-Stock Compensation" ("ASC 718"). Under ASC 718, stock-based compensation associated with equity-classified awards is measured at fair value upon the assignment date. The fair value of the 125,000 Founder Shares granted to the Company's independent directors on their respective grant dates in March and April 2025 has an aggregate total of $181,250, or $1.45 per share. The transfer of Founder Shares has no service restrictions, thus, the total fair value of $181,250 was recorded as compensation expense on the respective grant dates in March and April 2025. The fair value of the Founder Shares was derived through a third-party valuation in which the implied share price of $9.83 is multiplied by the market adjustment of 17.0%, less a discount for lack of marketability of $0.22.

The initial shareholders agreed, subject to limited exceptions, not to transfer, assign or sell any of the Founder Shares until the earlier to occur of: (A) one year after the completion of the initial Business Combination or (B) subsequent to the initial Business Combination, (x) if the last reported sale price of the Class A ordinary shares equals or exceeds $12.00 per share (as adjusted for subdivisions, share dividends, reorganizations, recapitalizations and the like) for any 20 trading days within any 30-trading day period commencing at least 150 days after the initial Business Combination, or (y) the date on which the Company completes a liquidation, merger, share exchange, reorganization or other similar transaction that results in all of the shareholders having the right to exchange their Class A ordinary shares for cash, securities or other property. Any permitted transferees will be subject to the same restrictions and other agreements of the initial shareholders with respect to any Founder Shares.

#### Private Placement Units
Simultaneously with the closing of the Initial Public Offering, the Sponsor purchased an aggregate of 362,500 Private Placement Units at a price of $10.00 per Private Placement Unit, or $3,625,000 in the aggregate, in a private placement. Private Placement Units are the units issued to the Sponsor in a private placement that occurred simultaneously with the Closing of the Initial Public Offering and upon the conversion of Working Capital Loans (as defined below), if any. Each Private Placement Unit consists of one Class A ordinary share and one Private Right. A Private Right entitles the Sponsor to receive one-tenth of one Class A Ordinary Share. The Private Rights have terms and provisions that will be identical to those of the Rights sold as part of the Initial Public Offering.

The purchasers of the Private Placement Units agreed, subject to limited exceptions, not to transfer, assign or sell any of their Private Placement Units (except to permitted transferees) until 30 days after the completion of the initial Business Combination.

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#### **Table of Contents**

#### THAYER VENTURES ACQUISITION CORPORATION II

#### NOTES TO CONDENSED FINANCIAL STATEMENTS

#### MARCH 31, 2026
(Unaudited)

#### Related Party Loans
On May 6, 2024, the Sponsor agreed to loan the Company an aggregate of up to $400,000 to cover expenses related to the Initial Public Offering pursuant to a promissory note (the "Note"). This loan is non-interest bearing and payable on the earlier of the completion of the Initial Public Offering or the date the Company determines not to conduct an Initial Public Offering. As March 31, 2026 and December 31, 2025, there was $10 outstanding under the Promissory Note. No further borrowings are permitted under this note.

In addition, in order to finance transaction costs in connection with a Business Combination, the Sponsor or an affiliate of the Sponsor, or certain of the Company's officers and directors may, but are not obligated to, loan the Company funds as may be required ("Working Capital Loans"). If the Company completes a Business Combination, the Company would repay the Working Capital Loans out of the proceeds of the Trust Account released to the Company. Otherwise, the Working Capital Loans would be repaid only out of funds held outside the Trust Account. In the event that a Business Combination does not close, the Company may use a portion of the proceeds held outside the Trust Account to repay the Working Capital Loans but no proceeds held in the Trust Account would be used to repay the Working Capital Loans. The Working Capital Loans would either be repaid upon consummation of a Business Combination or, at the lender's discretion, up to $1,500,000 of such Working Capital Loans may be convertible into units of the post-Business Combination entity at a price of $10.00 per unit. The units would be identical to the Private Placement Units. Except for the foregoing, the terms of such Working Capital Loans, if any, have not been determined and no written agreements exist with respect to such loans. As March 31, 2026 and December 31, 2025, the Company had no borrowings under the Working Capital Loans.

#### Administrative Services Agreement
The Company entered into an agreement with the Sponsor, commencing on May 14, 2025 through the earlier of the Company's consummation of its initial Business Combination or its liquidation, to pay the Sponsor an aggregate of $30,000 per month for office space, secretarial and administrative services. For the three months ended March 31, 2026 and 2025, the Company incurred and paid $90,000 for these services.

#### Expense Reimbursements
The Sponsor, executive officers and directors, or any of their respective affiliates, will be reimbursed for any out-of-pocket expenses incurred in connection with activities on the Company's behalf such as identifying potential target businesses and performing due diligence on suitable Business Combinations. The Company's audit committee will review on a quarterly basis all payments that were made by the Company to the Sponsor, executive directors or officers, or the Company's or any of their respective affiliates. Amounts due for reimbursement of these out-of-pocket expenses are included in accounts payable and accrued expenses on the balance sheets. As of March 31, 2026 and December 31, 2025, the Company owed $1,300 to related parties for expense reimbursements.

#### NOTE 5. COMMITMENTS AND CONTINGENCIES

#### Registration Rights
The holders of the Founder Shares, Private Units (including the securities contained therein) and Units (including securities) are entitled to registration rights pursuant to a registration rights agreement to be signed prior to or on the effective date of the Initial Public Offering. The holders of these securities are entitled to make unlimited demands that the Company register such securities. In addition, the holders have certain piggyback registration rights with respect to registration statements filed subsequent to the completion of the initial Business Combination. However, the registration rights agreement provides that the Company will not permit any registration statement filed under the Securities Act to become effective until termination of the applicable lock-up period, which occurs (i) in the case of the Founder Shares, and (ii) in the case of the private units and the respective Class A ordinary shares underlying such units, 30 days after the completion of the initial Business Combination. The Company will bear the expenses incurred in connection with the filing of any such registration statements.

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#### **Table of Contents**

#### THAYER VENTURES ACQUISITION CORPORATION II

#### NOTES TO CONDENSED FINANCIAL STATEMENTS

#### MARCH 31, 2026
(Unaudited)

#### Underwriting Agreement
The underwriter had a 45-day option from the date of the Initial Public Offering to purchase up to an additional 2,625,000 Units to cover over-allotments, if any. On May 16, 2025, the underwriters elected to fully exercise their over-allotment option to purchase an additional 2,625,000 Units at a price of $10.00 per Unit. The underwriter was entitled to a cash underwriting discount of $3,500,000 in the aggregate, or 2.0% of the gross proceeds of the Units offered in the Initial Public Offering, excluding any proceeds from Units sold pursuant to the underwriter's over-allotment option. The underwriter paid the Company an aggregate amount of $2,000,000 at the closing of the Initial Public Offering as reimbursement to the Company for certain of its expenses and fees incurred in connection with the Initial Public Offering. Additionally, the underwriter was entitled to a deferred underwriting discount of 3.5% of the gross proceeds of the Initial Public Offering held in the Trust Account, other than the gross proceeds from the Units sold pursuant to the underwriter's option to purchase additional Units, and 5.5% of the gross proceeds from the additional Units sold pursuant to such option, or $7,568,750 in the aggregate, payable upon the completion of the Company's initial Business Combination subject to the terms of the underwriting agreement. The deferred underwriting discount will be payable to the underwriter upon the closing of the initial Business Combination in two portions: (i) $0.10 per Unit sold in the offering shall be paid to the underwriter in cash and (ii) up to $0.25 per Unit sold in the offering (other than the Units sold pursuant to the underwriter's option to purchase additional Units, which will be up to $0.45 per Unit sold pursuant to such option), shall be paid to the underwriter in cash based on the funds remaining in the Trust Account after giving effect to public shares that are redeemed in connection with an initial Business Combination.

#### Deferred Legal Fees
As of March 31, 2026 and December 31, 2025, the Company had deferred legal fees of $1,011,279 and $920,140, respectively, to be paid to the Company's legal advisors upon consummation of the initial Business Combination. As the settlement or liquidation of amounts of deferred legal fees are not reasonably expected to require the use of current assets or require the creation of current liabilities, the amount is classified as a non-current liability in the accompanying balance sheets as of March 31, 2026 and December 31, 2025.

#### Risks and Uncertainties
The United States and global markets are experiencing volatility and disruption following the geopolitical instability resulting from the ongoing Russia-Ukraine conflict and the Israel-Hamas conflict. In response to the ongoing Russia-Ukraine conflict, the North Atlantic Treaty Organization ("NATO") deployed additional military forces to eastern Europe, and the United States, the United Kingdom, the European Union and other countries have announced various sanctions and restrictive actions against Russia, Belarus and related individuals and entities, including the removal of certain financial institutions from the Society for Worldwide Interbank Financial Telecommunication payment system. Certain countries, including the United States, have also provided and may continue to provide military aid or other assistance to Ukraine and to Israel, increasing geopolitical tensions among a number of nations. The invasion of Ukraine by Russia and the Israel-Hamas conflict and the resulting measures that have been taken, and could be taken in the future, by NATO, the United States, the United Kingdom, the European Union, Israel and its neighboring states and other countries have created global security concerns that could have a lasting impact on regional and global economies. Although the length and impact of the ongoing conflicts are highly unpredictable, they could lead to market disruptions, including significant volatility in commodity prices, credit and capital markets, as well as supply chain interruptions and increased cyberattacks against U.S. companies. Additionally, any resulting sanctions could adversely affect the global economy and financial markets and lead to instability and lack of liquidity in capital markets.

Any of the above mentioned factors, or any other negative impact on the global economy, capital markets or other geopolitical conditions resulting from the Russian invasion of Ukraine, the Israel-Hamas conflict and subsequent sanctions or related actions, could adversely affect the Company's search for an initial Business Combination and any target business with which the Company may ultimately consummate an initial Business Combination.

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#### **Table of Contents**

#### THAYER VENTURES ACQUISITION CORPORATION II

#### NOTES TO CONDENSED FINANCIAL STATEMENTS

#### MARCH 31, 2026
(Unaudited)

#### NOTE 6. SHAREHOLDERS' DEFICIT
Preference Shares — The Company is authorized to issue a total of 1,000,000 preference shares at par value of $0.0001 each. As of March 31, 2026 and December 31, 2025, there were no preference shares issued or outstanding.

Class A Ordinary Shares — The Company is authorized to issue a total of 100,000,000 Class A ordinary shares at par value of $0.0001 each. As of March 31, 2026 and December 31, 2025, there were 362,500 Class A ordinary shares issued and outstanding, excluding 20,125,000 shares subject to possible redemption.

Class B Ordinary Shares — The Company is authorized to issue a total of 10,000,000 Class B ordinary shares at par value of $0.0001 each. As of March 31, 2026 and December 31, 2025, there were 6,708,333 Class B ordinary shares issued and outstanding.

Ordinary shareholders of record are entitled to one vote for each share held on all matters to be voted on by shareholders. Holders of Class A ordinary shares and holders of Class B ordinary shares will vote together as a single class on all matters submitted to a vote of the Company's shareholder except as required by law. Unless specified in the amended and restated memorandum and articles of association, or as required by applicable provisions of the Companies Act or applicable share exchange rules, the affirmative vote of a majority of the Company's ordinary shares that are voted is required to approve any such matter voted on by the shareholders. Approval of certain actions will require a special resolution under the amended and restated memorandum and articles of association and Cayman Islands law, which is a resolution passed by a majority of at least two-thirds of the shareholders as, being entitled to do so, vote in person or by proxy at a general meeting of the company and includes a unanimous written resolution, and pursuant to the amended and restated memorandum and articles of association such actions include amending the amended and restated memorandum and articles of association and approving a statutory merger or consolidation with another company. The board of directors is divided into three classes, each of which will generally serve for a term of three years with only one class of directors being appointed in each year. There is no cumulative voting with respect to the appointment of directors, with the result that the holders of more than 50% of the shares voted for the appointment of directors can elect all of the directors. However, only holders of Class B ordinary shares will have the right to appoint directors in any election held prior to the completion of the initial Business Combination, meaning that holders of Class A ordinary shares will not have the right to appoint any directors until after the completion of the initial Business Combination.

In addition, only the Class B ordinary shares will be entitled to vote to continue the Company in a jurisdiction outside of the Cayman Islands. The provisions of the amended and restated memorandum and articles of association governing the continuation in a jurisdiction outside the Cayman Islands prior to the initial Business Combination may only be amended by a special resolution, which is a resolution passed by at least two-thirds of the shareholders as, being entitled to do so, vote in person or by proxy at a general meeting of the Company and includes a unanimous written resolution, which shall include the affirmative vote of a simple majority of the Class B ordinary shares.

The Class B ordinary shares will automatically convert into Class A ordinary shares at the time of the initial Business Combination on a one-for-one basis(subject to adjustment for subdivisions, share dividends, reorganizations, recapitalizations and the like). In the case that additional Class A ordinary shares, or equity-linked securities, are issued or deemed issued in excess of the amounts offered in the IPO and related to the closing of the Business Combination, including pursuant to a specified future issuance, the ratio at which Class B ordinary shares shall convert into Class A ordinary shares will be adjusted (unless the initial shareholders agree to waive such adjustment with respect to any such issuance or deemed issuance, including a specified future issuance) so that the number of Class A ordinary shares issuable upon conversion of all Class B ordinary shares will equal, in the aggregate, on an as-converted basis, 25% of the sum of the total number of all ordinary shares outstanding upon completion of the offering plus all Class A ordinary shares and equity-linked securities issued or deemed issued in connection with the Business Combination (after giving effect to any redemptions of Class A ordinary shares by public shareholders) (excluding any shares or equity-linked securities issued, or to be issued, to any seller in the initial Business Combination and any private units issued to the Sponsor, officers or directors upon conversion of working capital loans). The Sponsor may also elect to convert their Class B ordinary shares into an equal number of Class A ordinary shares, subject to adjustment as provided above, at any time. In no event will the Class B ordinary shares convert into shares of Class A ordinary shares at a rate of less than one to one.

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#### **Table of Contents**

#### THAYER VENTURES ACQUISITION CORPORATION II

#### NOTES TO CONDENSED FINANCIAL STATEMENTS

#### MARCH 31, 2026
(Unaudited)

Rights — Except in cases where the Company is not the surviving company in a Business Combination, each holder of a right will automatically receive one-tenth (1/10) of one ordinary share upon consummation of the initial Business Combination. The Company will not issue fractional shares in connection with an exchange of rights. Fractional shares will either be rounded down to the nearest whole share or otherwise addressed in accordance with the applicable provisions of Cayman law. In the event the Company is not the surviving company upon completion of the initial Business Combination, each holder of a right will be required to affirmatively convert his, hers or its rights in order to receive the one-tenth (1/10) of one ordinary share underlying each right upon consummation of the Business Combination. If the Company is unable to complete the initial Business Combination within the Combination Period and the Company will redeem the public shares for the funds held in the Trust Account, holders of rights will not receive any of such funds for their rights and the rights will expire worthless.

#### NOTE 7. FAIR VALUE MEASUREMENTS
The fair value of the Company's financial assets and liabilities reflects management's estimate of amounts that the Company would have received in connection with the sale of the assets or paid in connection with the transfer of the liabilities in an orderly transaction between market participants at the measurement date. In connection with measuring the fair value of its assets and liabilities, the Company seeks to maximize the use of observable inputs (market data obtained from independent sources) and to minimize the use of unobservable inputs (internal assumptions about how market participants would price assets and liabilities). The following fair value hierarchy is used to classify assets and liabilities based on the observable inputs and unobservable inputs used in order to value the assets and liabilities:

Level 1: Quoted prices in active markets for identical assets or liabilities. An active market for an asset or liability is a market in which transactions for the asset or liability occur with sufficient frequency and volume to provide pricing information on an ongoing basis.

Level 2: Observable inputs other than Level 1 inputs. Examples of Level 2 inputs include quoted prices in active markets for similar assets or liabilities and quoted prices for identical assets or liabilities in markets that are not active.

Level 3: Unobservable inputs based on assessment of the assumptions that market participants would use in pricing the asset or liability.

Assets held in the Trust Account were held in a money market fund and are classified as trading securities. Trading securities are presented on the balance sheets at fair value at the end of each reporting period. The estimated fair values of investments held in Trust Account are determined using available market information. Fair values of these investments are determined by Level 1 inputs utilizing quoted prices (unadjusted) in active markets for identical assets.

The following table presents information about the Company's assets that are measured at fair value as of March 31, 2026 and December 31, 2025 and indicates the fair value hierarchy of the valuation inputs the Company utilized to determine such fair value.

---

| | | |
|:---|:---|:---|
|  | Level 1 | Level 1 |
|  | March 31, 2026 | December 31, 2025 |
| Assets: |  |  |
| Money market funds | $208178661 | $206357012 |

---

At May 16, 2025, the fair value of the Public Rights issued in the Initial Public Offering was $4,025,000, or $0.20 per Public Right. The Public Rights issued in the Initial Public Offering have been classified within shareholders' deficit and will not require remeasurement after issuance. The following table presents the quantitative information regarding market assumptions used in the valuation of the Public Rights issued in the Initial Public Offering:

---

| | |
|:---|:---|
|  | May 16, 2025 |
| Traded Unit price | $10.05 |
| Expected term to De-SPAC (years) | 1.8 |
| Probability of De-SPAC and instrument-specific market adjustment | 20.0% |
| Risk-free rate (continuous) | 3.98% |

---

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#### **Table of Contents**

#### THAYER VENTURES ACQUISITION CORPORATION II

#### NOTES TO CONDENSED FINANCIAL STATEMENTS

#### MARCH 31, 2026
(Unaudited)

#### NOTE 8. SEGMENT INFORMATION
ASC Topic 280, "Segment Reporting," establishes standards for companies to report in their unaudited condensed financial statement information about operating segments, products, services, geographic areas, and major customers. Operating segments are defined as components of an enterprise that engage in business activities from which it may recognize revenues and incur expenses, and for which separate financial information is available that is regularly evaluated by the Company's chief operating decision maker ("CODM"), or group, in deciding how to allocate resources and assess performance.

The Company's CODM has been identified as the Chief Financial Officer, who reviews the operating results for the Company as a whole to make decisions about allocating resources and assessing financial performance. Accordingly, management has determined that the Company only has one operating segment.

The CODM assesses performance for the single segment and decides how to allocate resources based on net income or loss that also is reported on the condensed statements of operations as net income or loss. When evaluating the Company's performance and making key decisions regarding resource allocation the CODM reviews several key metrics, which include the following:

---

| | | |
|:---|:---|:---|
|  | March 31,<br> 2026 | December 31,<br> 2025 |
| Cash and securities held in Trust Account | $208178661 | $206357012 |

---

---

| | | |
|:---|:---|:---|
|  | For the Three Months Ended<br> March 31, | For the Three Months Ended<br> March 31, |
|  | 2026 | 2025 |
| General and administrative expenses | $329669 | $18101 |
| Earnings from investments held in Trust Account | $1821649 | $— |

---

General and administrative costs are reviewed and monitored by the CODM to manage and forecast cash to ensure enough capital is available to complete an initial Business Combination within the Combination Period. The CODM also reviews general and administrative costs to manage, maintain and enforce all contractual agreements to ensure costs are aligned with all agreements and budget. General and administrative costs, as reported on the statements of operations, are the significant segment expenses provided to the CODM on a regular basis.

The CODM reviews earnings from investments held in Trust Account to measure and monitor shareholder value and determine the most effective strategy of investment with the Trust Account funds while maintaining compliance with the Trust Agreement.

All other segment items included in net income or loss are reported on the statements of operations and described within their respective disclosures.

#### NOTE 9. SUBSEQUENT EVENTS
The Company evaluated subsequent events and transactions that occurred after the balance sheet date up to the date that the unaudited condensed financial statements were issued. Based upon this review the Company did not identify any subsequent events that would have required adjustment or disclosure in the unaudited condensed financial statements.

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##### [**Table of Contents**](#toc)

#### Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations
References in this report (the "Quarterly Report") to "we," "us" or the "Company" refer to Thayer Ventures Acquisition Corporation II. References to our "management" or our "management team" refer to our officers and directors, and references to the "Sponsor" refer to Thayer Ventures Acquisition Holdings II LLC. The following discussion and analysis of the Company's financial condition and results of operations should be read in conjunction with the unaudited condensed financial statements and the notes thereto contained elsewhere in this Quarterly Report. Certain information contained in the discussion and analysis set forth below includes forward-looking statements that involve risks and uncertainties.

#### Special Note Regarding Forward-Looking Statements
This Quarterly Report includes "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Exchange Act that are not historical facts and involve risks and uncertainties that could cause actual results to differ materially from those expected and projected. All statements, other than statements of historical fact included in this Form 10-Q including, without limitation, statements in this "Management's Discussion and Analysis of Financial Condition and Results of Operations" regarding the completion of the Proposed Business Combination (as defined below), the Company's financial position, business strategy and the plans and objectives of management for future operations, are forward-looking statements. Words such as "expect," "believe," "anticipate," "intend," "estimate," "seek" and variations and similar words and expressions are intended to identify such forward-looking statements. Such forward-looking statements relate to future events or future performance, but reflect management's current beliefs, based on information currently available. A number of factors could cause actual events, performance or results to differ materially from the events, performance and results discussed in the forward-looking statements, including that the conditions of the Proposed Business Combination are not satisfied. For information identifying important factors that could cause actual results to differ materially from those anticipated in the forward-looking statements, please refer to the Risk Factors section of the Company's final prospectus for its Initial Public Offering filed with the U.S. Securities and Exchange Commission (the "SEC"). The Company's securities filings can be accessed on the EDGAR section of the SEC's website at www.sec.gov. Except as expressly required by applicable securities law, the Company disclaims any intention or obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise.

#### Overview
We are a blank check company incorporated in the Cayman Islands on April 23, 2024 formed for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses. We intend to effectuate our Business Combination using cash derived from the proceeds of the Initial Public Offering and the sale of the Private Placement Units, our shares, debt or a combination of cash, shares and debt.

We expect to continue to incur significant costs in the pursuit of our acquisition plans. We cannot assure you that our plans to complete a Business Combination will be successful.

#### Results of Operations
We have neither engaged in any operations nor generated any revenues to date. Our only activities from April 23, 2024 (inception) through March 31, 2026 were organizational activities, those necessary to prepare for the Initial Public Offering, described in Note 1, and identifying a target company for a Business Combination. We do not expect to generate any operating revenues until after the completion of our Business Combination. Subsequent to the Initial Public Offering, we generate non-operating income in the form of earnings from investments held in the Trust Account. We incur expenses as a result of being a public company (for legal, financial reporting, accounting and auditing compliance), as well as for due diligence expenses.

For the three months ended March 31, 2026, we had a net income of $993,698, which consisted of earnings from investments held in Trust Account of $1,821,649 offset by California franchise tax of $498,282 and general and administrative costs of $329,669.

For the three months ended March 31, 2025, we had a net loss of $163,101, which consisted of compensation expense of $145,000 and general and administrative expenses of $18,101.

#### Liquidity, Capital Resources and Going Concern
On May 16, 2025, the Company consummated the Initial Public Offering of 20,125,000 Units, which includes the full exercise by the underwriters of their over-allotment option in the amount of 2,625,000 Units, at $10.00 per Unit, generating gross proceeds of $201,250,000. Simultaneously with the closing of the Initial Public Offering, the Company consummated the sale of 362,500 Private Placement Units at a price of $10.00 per Private Placement Unit, in a private placement to the Sponsor, generating gross proceeds of $3,625,000.

Following the closing of the Initial Public Offering and the Private Placement, a total of $201,250,000 was placed in the Trust Account. We incurred $10,727,318, consisting of $1,500,000 of cash underwriting fees (net of $2,000,000 underwriters' reimbursement), $7,568,750 of deferred underwriting fees, and $1,658,568 of other offering costs.

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For the three months ended March 31, 2026, cash provided by operating activities was $126,879. Net income of $993,698 was affected by earnings from investments held in the Trust Account of $1,821,649 and deferred legal fees of $91,139. Changes in operating assets and liabilities provided $609,933 of cash for operating activities.

For the three months ended March 31, 2025, cash used in operating activities was $0. Net loss of $163,101 was affected by compensation expense of $145,000 and payment of operation costs through promissory note of $10,001. Changes in operating assets and liabilities provided $8,100 of cash for operating activities.

As of March 31, 2026, our investment in the trust account consisted of money market funds of $208,178,661. We may withdraw earnings from the Trust Account to pay taxes. We intend to use substantially all of the funds held in the Trust Account, including any amounts representing earnings earned on the Trust Account (less taxes payable, if any), to complete our Business Combination. To the extent that our share capital or debt is used, in whole or in part, as consideration to complete our Business Combination, the remaining proceeds held in the Trust Account will be used as working capital to finance the operations of the target business or businesses, make other acquisitions and pursue our growth strategies.

As of March 31, 2026, we had cash of $131,087. We intend to use the funds held outside the Trust Account primarily to identify and evaluate target businesses, perform business due diligence on prospective target businesses, travel to and from the offices, plants or similar locations of prospective target businesses or their representatives or owners, review corporate documents and material agreements of prospective target businesses, and structure, negotiate and complete a Business Combination.

In order to fund working capital deficiencies or finance transaction costs in connection with a Business Combination, the Sponsor, or certain of our officers and directors or their affiliates may, but are not obligated to, loan us funds as may be required. If we complete a Business Combination, we would repay such loaned amounts. In the event that a Business Combination does not close, we may use a portion of the working capital held outside the Trust Account to repay such loaned amounts but no proceeds from our Trust Account would be used for such repayment. Up to $1,500,000 of such Working Capital Loans may be convertible into units of the post-Business Combination entity at a price of $10.00 per unit. The units would be identical to the Private Placement Units.

We may need to raise additional funds in order to meet the expenditures required for operating our business. However, if our estimate of the costs of identifying a target business, undertaking in-depth due diligence and negotiating a Business Combination are less than the actual amount necessary to do so, we may have insufficient funds available to operate our business prior to our Business Combination. Moreover, we may need to obtain additional financing either to complete our Business Combination or because we become obligated to redeem a significant number of our Public Shares upon consummation of our Business Combination, in which case we may issue additional securities or incur debt in connection with such Business Combination.

In connection with our assessment of going concern considerations in accordance with ASC 204-50, "Presentation of Financial Statements—Going Concern," we have incurred and expect to continue to incur significant costs in pursuit of our financing and acquisition plans. In addition, we have determined that if we are unable to complete an initial Business Combination within the Combination Period, then we will cease all operations except for the purpose of liquidating. These conditions raise substantial doubt about our ability to continue as a going concern. We plan to address this uncertainty through a Business Combination. There are no assurances that our plans to consummate a Business Combination will be successful within the Combination Period. The financial statements do not include any adjustments that might result from the outcome of this uncertainty.

#### Off-Balance Sheet Arrangements
We have no obligations, assets or liabilities, which would be considered off-balance sheet arrangements as of March 31, 2026. We do not participate in transactions that create relationships with unconsolidated entities or financial partnerships, often referred to as variable interest entities, which would have been established for the purpose of facilitating off-balance sheet arrangements. We have not entered into any off-balance sheet financing arrangements, established any special purpose entities, guaranteed any debt or commitments of other entities, or purchased any non-financial assets.

#### Contractual Obligations
We do not have any long-term debt, capital lease obligations, operating lease obligations or long-term liabilities, other than an agreement to pay the Sponsor an aggregate of $30,000 per month for office space, secretarial and administrative services.

The underwriter was entitled to a deferred underwriting discount of 3.5% of the gross proceeds of the Initial Public Offering held in the Trust Account, other than the gross proceeds from the units sold pursuant to the underwriter's option to purchase additional units, and 5.5% of the gross proceeds from the additional units sold pursuant to such option, or $7,568,750 in the aggregate, payable upon the completion of the Company's initial Business Combination subject to the terms of the underwriting agreement. The deferred underwriting discount will be payable to the underwriter upon the closing of the initial Business Combination in two portions: (i) $0.10 per unit sold in the offering shall be paid to the underwriter in cash and (ii) up to $0.25 per unit sold in the offering (other than the units sold pursuant to the underwriter's option to purchase additional units, which will be up to $0.45 per unit sold pursuant to such option), shall be paid to the underwriter in cash based on the funds remaining in the Trust Account after giving effect to public shares that are redeemed in connection with an initial Business Combination.

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#### Critical Accounting Estimates
The preparation of the unaudited condensed financial statements and related disclosures in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and income and expenses during the periods reported. Making estimates requires management to exercise significant judgement. It is at least reasonably possible that the estimate of the effect of a condition, situation or set of circumstances that existed at the date of the unaudited condensed financial statements, which management considered in formulating its estimate, could change in the near term due to one or more future confirming events. Accordingly, the actual results could materially differ from those estimates. As of March 31, 2026, we did not have any critical accounting estimates to be disclosed.

#### Recent Accounting Standards
In November 2024, the FASB issued ASU 2024-03, "Income Statement-Reporting Comprehensive Income-Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses", requiring public entities to disclose additional information about specific expense categories in the notes to the financial statements on an interim and annual basis. ASU 2024-03 is effective for fiscal years beginning after December 15, 2026, and for interim periods beginning after December 15, 2027, with early adoption permitted. The Company is currently evaluating the impact of adopting ASU 2024-03.

The Company's management does not believe that any other recently issued, but not yet effective, accounting standards updates, if currently adopted, would have a material effect on the accompanying unaudited condensed financial statement.

#### Item 3. Quantitative and Qualitative Disclosures About Market Risk
We are a smaller reporting company as defined by Rule 12b-2 under the Exchange Act and are not required to provide the information otherwise required under this Item.

#### Item 4. Controls and Procedures

#### Evaluation of Disclosure Controls and Procedures
Disclosure controls and procedures are controls and other procedures designed to ensure that information required to be disclosed in our reports filed or submitted under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed in our reports filed or submitted under the Exchange Act is accumulated and communicated to management, including our Chief Executive Officer and Chief Financial Officer (together, the "Certifying Officers"), or persons performing similar functions, as appropriate, to allow timely decisions regarding required disclosure.

Under the supervision and with the participation of our management, including our Certifying Officers, we carried out an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act. Based on the foregoing, our Certifying Officers concluded that our disclosure controls and procedures were effective as of March 31, 2026.

We do not expect that our disclosure controls and procedures will prevent all errors and all instances of fraud. Disclosure controls and procedures, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the disclosure controls and procedures are met. Further, the design of disclosure controls and procedures must reflect the fact that there are resource constraints, and the benefits must be considered relative to their costs. Because of the inherent limitations in all disclosure controls and procedures, no evaluation of disclosure controls and procedures can provide absolute assurance that we have detected all our control deficiencies and instances of fraud, if any. The design of disclosure controls and procedures also is based partly on certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions.

#### Changes in Internal Control over Financial Reporting
There was no change in our internal control over financial reporting that occurred during the fiscal quarter of 2026 covered by this Quarterly Report on Form 10-Q that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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#### PART II - OTHER INFORMATION

#### Item 1. Legal Proceedings
To the knowledge of our management, there is no material litigation currently pending or contemplated against us, any of our officers or directors in their capacity as such or against any of our property.

#### Item 1A. Risk Factors
Factors that could cause our actual results to differ materially from those in this Quarterly Report include the risk factors described in our Annual Report on Form 10-K filed with the SEC on March 30, 2026. As of the date of this Quarterly Report, there have been no material changes to the risk factors disclosed in our Annual Report on Form 10-K filed with the SEC on March 30, 2026.

#### Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

#### Unregistered Sales of Equity Securities
There were no sales of unregistered securities during the quarterly period covered by this Report. However, on May 16, 2025, the Company consummated the Initial Public Offering of 20,125,000 units, each consisting of one Class A Ordinary Share, par value $0.0001 per share, and one Right entitling the holder to receive one-tenth of a Class A Ordinary Share (a "Unit"), which includes the full exercise by the underwriter, Stifel, Nicholaus & Company, Incorporated, of its over-allotment option in the amount of 2,625,000 Units, at $10.00 per Unit, generating gross proceeds of 201,250,000. Simultaneously with the closing of the Initial Public Offering, the Company consummated the sale of 362,500 Private Placement Units at a price of $10.00 per Private Placement Unit, in a private placement to the Sponsor, generating gross proceeds of $3,625,000.

#### Use of Proceeds
Following the closing of our Initial Public Offering on May 16, 2025, a total of $201,250,000 (which amount includes $7,568,750 of the Deferred Fee) was placed in a U.S.-based trust account maintained by Continental Stock Transfer & Trust Company, acting as trustee. The proceeds held in the Trust Account may be invested by the trustee only in U.S. government securities with a maturity of 185 days or less or in money market funds investing solely in U.S. government treasury obligations and meeting certain conditions under Rule 2a-7 under the Investment Company Act. To mitigate the risk that we might be deemed to be an investment company for purposes of the Investment Company Act, which risk increases the longer that we hold investments in the Trust Account, we may, at any time (based on the Management Team's ongoing assessment of all factors related to the potential status under the Investment Company Act), instruct the trustee to liquidate the investments held in the Trust Account and instead to hold the funds in the Trust Account in cash or in an interest-bearing demand deposit account at a bank.

The remaining proceeds from the Initial Public Offering and the Private Placement are held outside the Trust Account. Such funds are being used primarily to enable us to identify a target and to negotiate and consummate our initial Business Combination.

There has been no material change in the planned use of the proceeds from our Initial Public Offering and the Private Placement as described in the Registration Statement. The specific investments in our Trust Account may change from time to time.

#### Item 3. Defaults Upon Senior Securities
None

#### Item 4. Mine Safety Disclosures
None

#### Item 5. Other Information
None

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#### Item 6. Exhibits
The following exhibits are filed as part of, or incorporated by reference into, this Quarterly Report on Form 10-Q.

---

| | |
|:---|:---|
| **No.** | **Description of Exhibit** |
| 31.1\* | [Certification of Principal Executive Officer Pursuant to Securities Exchange Act Rules 13a-14(a), as adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002](d121309dex311.htm) |
| 31.2\* | [Certification of Principal Financial Officer Pursuant to Securities Exchange Act Rules 13a-14(a), as adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002](d121309dex312.htm) |
| 32.1\* | [Certification of Principal Executive Officer Pursuant to 18 U.S.C. Section 1350, as adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002](d121309dex321.htm) |
| 32.2\* | [Certification of Principal Financial Officer Pursuant to 18 U.S.C. Section 1350, as adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002](d121309dex322.htm) |
| 101.INS\* | XBRL Instance Document |
| 101.SCH\* | XBRL Taxonomy Extension Schema Document |
| 101.CAL\* | XBRL Taxonomy Extension Calculation Linkbase Document |
| 101.DEF\* | XBRL Taxonomy Extension Definition Linkbase Document |
| 101.LAB\* | XBRL Taxonomy Extension Labels Linkbase Document |
| 101.PRE\* | XBRL Taxonomy Extension Presentation Linkbase Document |
| 104\* | Cover Page Interactive Data File (Embedded as Inline XBRL document and contained in Exhibit 101) |

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\* Filed herewith.

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#### SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

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| | | |
|:---|:---|:---|
|  | **THAYER VENTURES ACQUISITION CORPORATION II** | **THAYER VENTURES ACQUISITION CORPORATION II** |
| Date: May 14, 2026 | By: | /s/ Christopher Hemmeter |
|  | Name: | Christopher Hemmeter |
|  | Title: | Co-Chief Executive Officer, Co-President, Secretary and Director<br> (Principal Executive Officer) |
| Date: May 14, 2026 | By: | /s/ Mark E. Farrell |
|  | Name: | Mark E. Farrell |
|  | Title: | Co-Chief Executive Officer, Co-President, Chief Financial Officer and Director<br> (Principal Financial and Accounting Officer) |

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## Exhibit 31.1

**EXHIBIT 31.1** 

**CERTIFICATION OF THE PRINCIPAL EXECUTIVE OFFICER** 

**PURSUANT TO RULES 13a-14(a) AND 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,** 

**AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002** 

I, Christopher Hemmeter, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Thayer Ventures
Acquisition Corporation II;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a
material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report,
fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining
disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be
designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is
being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) (Paragraph intentionally omitted pursuant to Exchange Act Rules 13a-14(1) and 15d-15(a));

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this
report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) Disclosed in this report any change in the registrant's internal control over financial reporting that
occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's
internal control over financial reporting; and

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of
internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) All significant deficiencies and material weaknesses in the design or operation of internal control over
financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in
the registrant's internal control over financial reporting.

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| | | |
|:---|:---|:---|
| Date: May 14, 2026 | By: | /s/ Christopher Hemmeter |
|  | Name: | Christopher Hemmeter |
|  | Title: | Co-Chief Executive Officer, Co-President,<br> Director and Secretary<br> *(Principal Executive Officer)* |

---

## Exhibit 31.2

**EXHIBIT 31.2** 

**CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER** 

**PURSUANT TO RULES 13a-14(a) AND 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,** 

**AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002** 

I, Mark E. Farrell, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Thayer Ventures
Acquisition Corporation II;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a
material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report,
fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining
disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be
designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is
being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) (Paragraph intentionally omitted pursuant to Exchange Act Rules 13a-14(1) and 15d-15(a));

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this
report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) Disclosed in this report any change in the registrant's internal control over financial reporting that
occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's
internal control over financial reporting; and

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of
internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) All significant deficiencies and material weaknesses in the design or operation of internal control over
financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in
the registrant's internal control over financial reporting.

---

| | | |
|:---|:---|:---|
| Date: May 14, 2026 | By: | /s/ Mark E. Farrell |
|  | Name: | Mark E. Farrell |
|  | Title: | Co-Chief Executive Officer, Co-President<br> Chief Financial Officer and Director<br> *(Principal Financial and Accounting Officer)* |

---

## Exhibit 32.1

**EXHIBIT 32.1** 

**CERTIFICATION OF THE** 

**PRINCIPAL EXECUTIVE OFFICER** 

**PURSUANT TO** 

**18 U.S.C. SECTION 1350,** 

**AS ADOPTED PURSUANT TO** 

**SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002** 

Pursuant to the requirement set forth in Rule 13a-14(b) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. §1350), Christopher Hemmeter, Co-Chief Executive Officer, Co-President, Director and Secretary of Thayer Ventures Acquisition Corporation II (the "Company"), hereby certifies that, to the best of his knowledge:

**1.** The Company's Quarterly Report on Form 10-Q for the period ended
March 31, 2026, to which this Certification is attached as Exhibit 32.1 (the "Periodic Report") fully complies with the requirements of Section 13(a) or Section 15(d) of the Exchange Act, and

**2.** The information contained in the Periodic Report fairly presents, in all material respects, the financial
condition and results of operations of the Company.

**IN WITNESS WHEREOF**, the undersigned has set his hands hereto as of May 14, 2026.

---

| | |
|:---|:---|
| By: | /s/ Christopher Hemmeter |
| Name: | Christopher Hemmeter |
| Title: | Co-Chief Executive Officer, Co-President,<br> Director and Secretary<br> *(Principal Executive Officer)* |

---

This certification accompanies the Form 10-Q to which it relates, is not deemed filed with the Securities and Exchange Commission and is not to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended (whether made before or after the date of the Form 10-Q), irrespective of any general incorporation language contained in such filing.

## Exhibit 32.2

**EXHIBIT 32.2** 

**CERTIFICATION OF THE** 

**PRINCIPAL FINANCIAL OFFICER** 

**PURSUANT TO** 

**18 U.S.C. SECTION 1350,** 

**AS ADOPTED PURSUANT TO** 

**SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002** 

Pursuant to the requirement set forth in Rule 13a-14(b) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. §1350), Mark E. Farrell, Co-Chief Executive Officer, Co-President, Chief Financial Officer and Director of Thayer Ventures Acquisition Corporation II (the "Company"), hereby certifies that, to the best of his knowledge:

**1.** The Company's Quarterly Report on Form 10-Q for the period ended
March 31, 2026, to which this Certification is attached as Exhibit 32.2 (the "Periodic Report") fully complies with the requirements of Section 13(a) or Section 15(d) of the Exchange Act, and

**2.** The information contained in the Periodic Report fairly presents, in all material respects, the financial
condition and results of operations of the Company.

**IN WITNESS WHEREOF**, the undersigned has set his hands hereto as of May 14, 2026.

---

| | |
|:---|:---|
| By: | /s/ Mark E. Farrell |
| Name: | Mark E. Farrell |
| Title: | Co-Chief Executive Officer, Co-President,<br> Chief Financial Officer and Director<br> *(Principal Financial and Accounting Officer)* |

---

This certification accompanies the Form 10-Q to which it relates, is not deemed filed with the Securities and Exchange Commission and is not to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended (whether made before or after the date of the Form 10-Q), irrespective of any general incorporation language contained in such filing.