The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

  NAMES OF REPORTING PERSONS

  Bessemer Venture Partners IX L.P.

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

  SEC USE ONLY

  CITIZENSHIP OR PLACE OF ORGANIZATION

  Cayman Islands

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH

  SOLE VOTING POWER

  691,505

  SHARED VOTING POWER

  0

  SOLE DISPOSITIVE POWER

  691,505

  SHARED DISPOSITIVE POWER

  0

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

  691,505

  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES

  ☐

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

  3.7% (1)

  TYPE OF REPORTING PERSON

  PN

The percent of class was calculated based on 18,624,902 shares of voting common stock issued and outstanding as of November 5, 2021, as disclosed in the Issuer’s Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on November 10, 2021.

  NAMES OF REPORTING PERSONS

  Bessemer Venture Partners IX Institutional L.P.

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

  SEC USE ONLY

  CITIZENSHIP OR PLACE OF ORGANIZATION

  Cayman Islands

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH

  SOLE VOTING POWER

  554,000

  SHARED VOTING POWER

  0

  SOLE DISPOSITIVE POWER

  554,000

  SHARED DISPOSITIVE POWER

  0

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

  554,000

  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES

  ☐

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

  3.0%(1)

  TYPE OF REPORTING PERSON

  PN

  NAMES OF REPORTING PERSONS

  Deer IX & Co. L.P.

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

  SEC USE ONLY

  CITIZENSHIP OR PLACE OF ORGANIZATION

  Cayman Islands

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH

  SOLE VOTING POWER

  1,245,505

  SHARED VOTING POWER

  0

  SOLE DISPOSITIVE POWER

  1,245,505

  SHARED DISPOSITIVE POWER

  0

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

  1,245,505

  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES

  ☐

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

  6.7%(1)

  TYPE OF REPORTING PERSON

  PN

  NAMES OF REPORTING PERSONS

  Deer IX & Co. Ltd.

  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

  (a)  ☐        (b)  ☒

  SEC USE ONLY

  CITIZENSHIP OR PLACE OF ORGANIZATION

  Cayman Islands

NUMBER OF

SHARES

 BENEFICIALLY 

OWNED BY

EACH

REPORTING

PERSON

WITH

  SOLE VOTING POWER

  1,245,505

  SHARED VOTING POWER

  0

  SOLE DISPOSITIVE POWER

  1,245,505

  SHARED DISPOSITIVE POWER

  0

  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

  1,245,505

  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES

  ☐

  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

  6.7%(1)

  TYPE OF REPORTING PERSON

  CO

Name of Issuer:

Address of Issuer’s Principal Executive Offices:

Deer IX & Co. Ltd. (“Deer IX Ltd”), the general partner of Deer IX & Co. L.P. (“Deer IX LP”);

Deer IX LP, the sole general partner of each of the Funds;

BVP IX, which directly owns 691,505 Shares; and

BVP IX Institutional, which directly owns 554,000 Shares.

Deer IX Ltd:

Amount beneficially owned: 1,245,505 Shares

Percent of class: 6.7%

Number of shares as to which such person has:

Sole power to vote or to direct the vote: --1,245,505 —

Shared power to vote or to direct the vote: --0--

Sole power to dispose or to direct the disposition of: --1,245,505 —

Shared power to dispose or to direct the disposition of: --0--

Amount beneficially owned: 1,245,505 Shares

Percent of class: 6.7%

Number of shares as to which such person has:

Sole power to vote or to direct the vote: --1,245,505 —

Shared power to vote or to direct the vote: --0--

Sole power to dispose or to direct the disposition of: --1,245,505 —

Shared power to dispose or to direct the disposition of: --0--

Amount beneficially owned: 691,505 Shares

Percent of class: 3.7%

Number of shares as to which such person has:

Sole power to vote or to direct the vote: --691,505--

Shared power to vote or to direct the vote: --0--

Sole power to dispose or to direct the disposition of: --691,505--

Shared power to dispose or to direct the disposition of: --0--

Amount beneficially owned: 554,000 Shares

Percent of class: 3.0%

Number of shares as to which such person has:

Sole power to vote or to direct the vote: — 554,000 —

Shared power to vote or to direct the vote: --0--

Sole power to dispose or to direct the disposition of: — 554,000 —

Shared power to dispose or to direct the disposition of: --0—

Ownership of Five Percent or Less of a Class.

Not applicable.

Ownership of More than Five Percent on Behalf of Another Person.

As the general partner of Deer IX LP, which in turn is the general partner of the Funds, Deer IX Ltd may be deemed to beneficially own all 1,245,505 Shares held directly by the Funds and have the power to direct the dividends from or the proceeds of the sale of such Shares.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.

Not applicable.

Identification and Classification of Members of the Group.

Exhibit 2 sets forth information regarding the identity of members of a group. The Reporting Persons disclaim membership in a group and this report shall not be deemed an admission by any of the Reporting Persons that they are or may be members of a “group” for purposes of Rule 13d-5 or for any other purpose.

Notice of Dissolution of Group.

Not applicable.

Certification.

Not applicable.