Aeluma (ALMU) CEO sells 50,000 shares in Rule 10b5-1 stock plan

Rhea-AI Filing Summary

Aeluma, Inc. Chief Executive Officer Jonathan Klamkin reported open-market sales of a total of 50,000 shares of Aeluma common stock on March 4, 2026, executed under a pre-arranged Rule 10b5-1 trading plan adopted on December 3, 2025.

The transactions consisted of 28,206 shares sold at a weighted average price of $17.7746 per share, with individual sale prices ranging from $17.11 to $18.10, and 21,794 shares sold at a weighted average price of $18.4110 per share, with prices ranging from $18.11 to $19.03.

Following these sales, Klamkin directly owned 1,429,398 shares of Aeluma common stock.

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Klamkin Jonathan

(Last) (First) (Middle)

27 CASTILIAN DRIVE

(Street)

GOLETA CA 93117

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Aeluma, Inc. [ ALMU ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/04/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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
Common Stock	03/04/2026		S(1)		28,206	D	$17.7746(2)	1,451,192	D
Common Stock	03/04/2026		S(1)		21,794	D	$18.411(3)	1,429,398	D

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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: 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

Explanation of Responses:

1. Sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 3, 2025.

2. Reflects the weighted average price of 28,206 shares of common stock of Aeluma, Inc. sold by the reporting person in multiple transactions on March 4, 2026 with sale prices ranging from $17.11 to $18.10 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

3. Reflects the weighted average price of 21,794 shares of common stock of Aeluma, Inc. sold by the reporting person in multiple transactions on March 4, 2026 with sale prices ranging from $18.11 to $19.03 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

	/s/ Joshua L. Colburn, Attorney-in-Fact	03/06/2026
	** Signature of Reporting Person	Date
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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Aeluma (ALMU) CEO Jonathan Klamkin report?

Jonathan Klamkin reported selling a total of 50,000 Aeluma common shares on March 4, 2026. The sales were open-market transactions executed under a pre-arranged Rule 10b5-1 trading plan, rather than discretionary same-day trading decisions.

At what prices did the Aeluma (ALMU) CEO sell his shares?

Klamkin sold 28,206 shares at a weighted average of $17.7746 (range $17.11–$18.10) and 21,794 shares at a weighted average of $18.4110 (range $18.11–$19.03) in open-market trades.

How many Aeluma (ALMU) shares does the CEO own after these Form 4 sales?

After the reported sales, Jonathan Klamkin directly owned 1,429,398 shares of Aeluma common stock. This figure reflects his direct holdings immediately following the March 4, 2026 open-market transactions disclosed in the Form 4 filing.

Were the Aeluma (ALMU) CEO’s share sales under a trading plan?

Yes. The filing states that the sales were effected under a Rule 10b5-1 trading plan adopted by Klamkin on December 3, 2025. Such plans pre-schedule trades, helping separate personal portfolio decisions from later company-specific news.

How many separate transactions are reported in this Aeluma (ALMU) Form 4?

The Form 4 reports two open-market sale transactions in Aeluma common stock on March 4, 2026. Each entry aggregates multiple trades into a single line with a weighted average price and a disclosed price range for the individual executions.

What does the price range disclosure mean in Aeluma (ALMU) CEO’s Form 4?

The filing notes that each weighted average price covers multiple trades within a stated range, such as $17.11–$18.10. It adds that full details on the number of shares sold at each specific price level are available upon request.