Aterian director Crampton receives 301,205 shares

The reported common-stock position consists of restricted shares subject to vesting under Aterian's 2018 Equity Incentive Plan.

Rhea-AI Filing Summary

Aterian, Inc. director William H. Crampton reported direct holdings of 301,205 shares of common stock. The reported shares consist of restricted stock granted on September 25, 2026, under the company's 2018 Equity Incentive Plan and are subject to vesting.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Crampton William H

Role Director

Type	Security	Shares	Price	Value
holding	Common Stock F1	--	--	--

Holdings After Transaction: Common Stock — 301,205 shares (Direct)

Footnotes (1)

1. F1. Comprised of shares of restricted stock granted to the Reporting Person on September 25, 2026 pursuant to the Issuer's 2018 Equity Incentive Plan, that are subject to vesting.

Key Figures

Direct common-stock holdings: 301,205 shares

1 metrics

Direct common-stock holdings 301,205 shares Reported following the September 25, 2026 transaction

Key Terms

restricted stock, vesting, 2018 Equity Incentive Plan

3 terms

restricted stock financial

"shares of restricted stock granted"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

vesting financial

"subject to vesting"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

2018 Equity Incentive Plan financial

"pursuant to the Issuer's 2018 Equity Incentive Plan"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many ATER shares did director William H. Crampton report holding?

William H. Crampton reported direct holdings of 301,205 shares of Aterian common stock. The shares consist of restricted stock granted on September 25, 2026, under the 2018 Equity Incentive Plan and are subject to vesting.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/30/2026 - 07:33 AM Accepted by SEC EDGAR 09/30/2026 - 07:33 AM Learn about SEC filing dates

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
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1. Name and Address of Reporting Person^*

Crampton William H

(Last) (First) (Middle)

350 SPRINGFIELD AVENUE SUITE #200

(Street)

SUMMIT NEW JERSEY 07901

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
09/25/2026

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

3a. Foreign Trading Symbol

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

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

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

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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	301,205(1)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Comprised of shares of restricted stock granted to the Reporting Person on September 25, 2026 pursuant to the Issuer's 2018 Equity Incentive Plan, that are subject to vesting.

	/s/ William Crampton	09/30/2026
	** 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 5 (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.
* Form 3: SEC 1473 (03-26)