Sec Form 3 Filing - Kleiner Perkins Caufield & Byers XIV, LLC @ Thayer Ventures Acquisition Corp - 2022-02-11

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Kleiner Perkins Caufield & Byers XIV, LLC 2. Issuer Name and Ticker or Trading Symbol Thayer Ventures Acquisition Corp [ ISPO] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O KLEINER PERKINS CAUFIELD & BYERS, 2750 SAND HILL ROAD 3. Date of Earliest Transaction (MM/DD/YY) 02/11/2022 (Street) MENLO PARK, CA94025 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common Stock 11,890,097 I See Footnote( 1 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Kleiner Perkins Caufield & Byers XIV, LL C C/O KLEINER PERKINS CAUFIELD & BYERS 2750 SAND HILL ROAD MENLO PARK, CA94025 X KPCB XIV Founders Fund, LLC C/O KLEINER PERKINS CAUFIELD & BYERS 2750 SAND HILL ROAD MENLO PARK, CA94025 X KPCB XIV Associates, LLC C/O KLEINER PERKINS CAUFIELD & BYERS 2750 SAND HILL ROAD MENLO PARK, CA94025 X Signatures /s/ Susan Biglieri, CFO 02/15/2022 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Consists of 10,962,670 shares of Class A Common Stock held by KPCB Holdings, Inc., as nominee for Kleiner Perkins Caufield & Byers XIV, LLC ("KPCB XIV") and 927,427 shares of Class A Common Stock held by KPCB Holdings, Inc., as nominee for KPCB XIV Founders Fund, LLC ("XIV FF"). The managing member of KPCB XIV and XIV FF is KPCB XIV Associates, LLC ("KPCB XIV Associates"). L. John Doerr, Brook Byers, Theodore E. Schlein and William "Bing" Gordon, the managing members of KPCB XIV Associates, exercise shared voting and dispositive control over the shares held by KPCB XIV and XIV FF. The managing members disclaim beneficial ownership of all shares held by KPCB Holdings, Inc., which is the only holder of record, except to the extent of their pecuniary interest therein.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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