Michael Byron - 21 Sep 2026 Form 4 Insider Report for Aeluma, Inc. (ALMU)

Reporting relationship: Director
Issuer ticker: ALMU
Reported as of: 21 Sep 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 23 Sep 2026, 16:54:07 UTC
Prior SEC filing: 02 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Joshua L. Colburn, Attorney-in-Fact

Key filing fact

Michael Byron filed Form 4 for Aeluma, Inc. (ALMU) on 23 Sep 2026.

Key facts

This page summarizes Michael Byron's Form 4 filing for Aeluma, Inc. (ALMU).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 23 Sep 2026, 16:54.

Change

Previous filing in this sequence was filed on 02 Mar 2026.
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 0001516062 Primary reporting owner

Byron Michael

Relationship: Director
Address: 27 CASTILIAN DRIVE, GOLETA
Signature: /s/ Joshua L. Colburn, Attorney-in-Fact
Signature date: 23 Sep 2026

Reported non-derivative transactions

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

ALMU transaction

Common Stock

Options Exercise

Transaction value
Shares: +25,000
Change %: +187%
Price: $5.93^*
Shares after: 38,343
Date: 21 Sep 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ALMU transaction Derivative

Stock Option (right to buy)

Options Exercise

Transaction value
Shares: -25,000
Change %: -55%
Price: $0.000000^*
Shares after: 20,833
Date: 21 Sep 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 25,000
Exercise price: $5.93
Footnotes: F1

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Fully vested.

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