SEC Form 4 · accession 0001638826-26-000102

ServiceTitan, Inc. · TTAN

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Ara Mahdessian

Officer — Chief Executive Officer · Director

Period of report

Sep 17, 2026

Accepted (ET)

Sep 21, 2026 · 7:01 pm EDT

Rule 10b5-1 plan

box not checked

Issuer CIK

0001638826

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Class A Common Stock	Sep 17, 2026	C	3,148	$0.00	A	3,150	D
Class A Common Stock^F3	Sep 17, 2026	S	3,148	$57.07	D	2	D

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Class B Common Stock^F5,F6,F4	—	Sep 17, 2026	C	3,148	D	—	—	Class A Common Stock	3,148	3,262,614	D
Class B Common Stock^F5,F4	—	holding	—	—	—	—	—	Class A Common Stock	4,216,857	4,216,857	I
Class B Common Stock^F4	—	holding	—	—	—	—	—	Class A Common Stock	341,906	341,906	I
Class B Common Stock^F6,F4	—	holding	—	—	—	—	—	Class A Common Stock	169,318	169,318	I
Class B Common Stock^F4	—	holding	—	—	—	—	—	Class A Common Stock	87,128	87,128	I
Class B Common Stock^F6,F4	—	holding	—	—	—	—	—	Class A Common Stock	16,047	16,047	I
Class B Common Stock^F7,F4	—	holding	—	—	—	—	—	Class A Common Stock	16,047	16,047	I
Class B Common Stock^F7,F4	—	holding	—	—	—	—	—	Class A Common Stock	2	2	I
Class B Common Stock^F4	—	holding	—	—	—	—	—	Class A Common Stock	341,906	341,906	I
Class B Common Stock^F7,F4	—	holding	—	—	—	—	—	Class A Common Stock	169,318	169,318	I
Class B Common Stock^F4	—	holding	—	—	—	—	—	Class A Common Stock	87,128	87,128	I

Explanation of responses

F1Represents the conversion of Class B Common Stock into Class A Common Stock held of record by the Reporting Person.
F2Represents shares sold to satisfy the Reporting Person's tax withholding obligation in connection with the vesting of restricted stock units. These sales are mandated as part of the Issuer's election under its equity incentive plans to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and do not represent discretionary trades by the Reporting Person.
F3This number includes rounding of fractional shares.
F4The Class B Common Stock is convertible into an equal number of shares of Class A Common Stock at any time, at the holder's election. Each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon any transfer, whether or not for value, except for certain permitted transfers, or upon the occurrence of certain specified events, in each case as set forth in the Issuer's Amended and Restated Certificate of Incorporation.
F5Reflects the following transfers of Class B Common Stock from the Reporting Person to the AMKE Trust: the September 17, 2025 transfer of 2,967 shares, the December 18, 2025 transfer of 2,985 shares, the March 18, 2026 transfer of 3,736 shares, and the September 17, 2026 transfer of 2,877 shares. Such transfers were exempt from reporting pursuant to Rule 16a-13.
F6Reflects the following: (i) the September 15, 2026 transfer of 169,319 shares of Class B Common Stock from the AM 2025 GRAT to the Reporting Person in satisfaction of a grantor retained annuity trust ("GRAT") annuity payment owed to the Reporting Person; and (ii) the subsequent September 15, 2026 transfer of 169,318 shares of Class B Common Stock from the Reporting Person to the AM 2026-2 GRAT.
F7Reflects the following: (i) the September 15, 2026 transfer of 169,319 shares of Class B Common Stock from the KE 2025 GRAT to the Reporting Person's spouse in satisfaction of a GRAT annuity payment owed to the Reporting Person's spouse; and (ii) the subsequent September 15, 2026 transfer of 169,318 shares of Class B Common Stock from the Reporting Person's spouse to the KE 2026-2 GRAT.