[Form 4] Aterian, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Susan Lattmann, a director of Aterian, Inc. (ATER), reported acquiring 78,034 shares of restricted common stock on 08/13/2025 under the company’s 2018 Equity Incentive Plan. The acquisition is recorded as an award of restricted stock subject to vesting. After the reported transaction, Ms. Lattmann beneficially owns 136,910 shares. The Form 4 was signed on 08/15/2025 and indicates the filing is by one reporting person. The filing does not disclose vesting schedule details or any cash consideration.

Positive

• Director acquisition disclosed: 78,034 restricted shares were granted and reported, showing an increase in the director's beneficial ownership to 136,910 shares
• Grant is under the issuer's 2018 Equity Incentive Plan, indicating the award follows an established compensation plan

Negative

• None.

Insights

Financial Analyst

TL;DR: Director received a meaningful restricted stock award increasing reported beneficial ownership.

The filing shows a non-derivative acquisition of 78,034 restricted shares via the issuer’s 2018 Equity Incentive Plan, increasing the director’s reported beneficial ownership to 136,910 shares. This is a typical equity-based compensation disclosure and does not include exercise prices or cash payments because the shares are restricted awards reported at $0. The submission lacks details on vesting timelines or potential dilution impact, limiting assessment of near-term financial effect.

Corporate Governance Expert

TL;DR: Standard insider filing documenting a restricted stock grant under the company plan; governance implications depend on vesting terms.

The document explicitly states the shares are restricted common stock granted under the 2018 Equity Incentive Plan and are subject to vesting. As filed under Section 16, this satisfies reporting obligations for changes in beneficial ownership. Because the Form 4 does not specify vesting conditions or acceleration provisions, the governance and alignment implications cannot be fully evaluated from this filing alone.

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).

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^*

Lattmann Susan E.

(Last) (First) (Middle)

350 SPRINGFIELD AVENUE SUITE #200

(Street)

SUMMIT NJ 07901

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Aterian, Inc. [ ATER ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
08/13/2025

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	08/13/2025		A(1)		78,034	A	$0	136,910	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. Comprised of shares of restricted common stock granted pursuant to the Issuer's 2018 Equity Incentive Plan that are subject to vesting.

	/s/ Susan Lattmann	08/15/2025
	** 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 did Susan Lattmann report on the ATER Form 4?

She reported an acquisition of 78,034 restricted common shares on 08/13/2025, increasing her beneficial ownership to 136,910 shares.

Were the shares purchased or granted for cash according to the filing?

The transaction is reported with a price of $0, indicating these are restricted stock awards rather than a cash purchase.

Are the restricted shares immediately vested per the Form 4?

No vesting schedule is provided in the filing; the Form 4 only states the shares are subject to vesting under the equity plan.

Under which plan were the shares granted?

The shares were granted pursuant to the issuer's 2018 Equity Incentive Plan, as stated in the explanation of responses.

When was the Form 4 signed and filed?

The filing is signed by Susan Lattmann on 08/15/2025 and reports a transaction date of 08/13/2025.