Yahui Chang - 17 Mar 2026 Form 4 Insider Report for TIGO ENERGY, INC. (TYGO)

Reporting relationship: Chief Operating Officer
Issuer ticker: TYGO
Reported as of: 17 Mar 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 19 Mar 2026, 17:00:22 UTC
Prior SEC filing: 09 Oct 2025
Source filing: View source filing
Reporting owner signature: /s/ Bill Roeschlein, as attorney-in-fact

Key filing fact

Yahui Chang filed Form 4 for TIGO ENERGY, INC. (TYGO) on 19 Mar 2026.

Key facts

This page summarizes Yahui Chang's Form 4 filing for TIGO ENERGY, INC. (TYGO).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 19 Mar 2026, 17:00.

Change

Previous filing in this sequence was filed on 09 Oct 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001976736 Primary reporting owner

Chang Yahui

Relationship: Chief Operating Officer
Address: 983 UNIVERSITY AVENUE, SUITE B, LOS GATOS
Signature: /s/ Bill Roeschlein, as attorney-in-fact
Signature date: 19 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

TYGO transaction

Common Stock

Award

Transaction value
Shares: +17,461
Change %: +8.5%
Price: $0.000000^*
Shares after: 222,455
Date: 17 Mar 2026
Ownership: Direct
Footnotes: F1, F2, F3

TYGO transaction

Common Stock

Tax liability

Transaction value
Shares: -9,461
Change %: -4.3%
Price: $4.14^*
Shares after: 212,944
Date: 17 Mar 2026
Ownership: Direct
Footnotes: F2, F3, F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

These shares of Common Stock were acquired upon a determination by the Company's Compensation Committee that the performance conditions had been met for the issuance of such shares pursuant to performance stock units ("PSUs") that were granted to the reporting person on September 16, 2024. The PSUs vest over a three-year period, with one-third of the PSUs eligible to vest each calendar year based on the achievement of performance goals for each of the calendar year periods ended December 31, 2025, 2026 and 2027 (each a "Performance Period"), subject to continued service through and including the first calendar day after the end of each such Performance Period. This amount represents the portion of the PSUs that vested following the first Performance Period, based upon the Company's achievement of the revenue and adjusted EBITDA performance goals for the year ended December 31, 2025.

Footnote F2

Includes 96,000 shares of Common Stock underlying restricted stock units ("RSUs") granted to the reporting person on November 11, 2024 (the "Grant Date") and 78,149 shares of Common Stock underlying RSU's granted to the reporting person on August 1, 2025 (the "August 2025 Grant Date") pursuant to the Issuer's 2023 Incentive Plan. One-Third (1/3) of the RSUs shall vest, and an equal number of shares of Common Stock will be deliverable to the reporting person, on each of the first three anniversaries of October 7, 2024, subject to continued service through each such vesting date.

Footnote F3

(Continuation of the Footnote (2)) One-Third (1/3) of the RSUs granted to the reporting person on August 1, 2025 shall vest, and an equal number of shares of Common Stock will be deliverable to the reporting person, on each of the first three anniversaries of the August 2025 Grant Date, subject to continued service through each such vesting date.

Footnote F4

Represents shares of Common Stock withheld to cover the tax withholding obligations in connection with the settlement of the PSUs described in Footnote 1.