ATER: Lazar David E. discloses securities transactions

By AlphaYouPublished Sep 30, 2026Form 4

Stocks in this disclosure

Reported activity

Lazar David E.

Reporting filer

Lazar David E. reported Conversion in Aterian, Inc.: 1300530 units of Common Stock, dated 2026-09-24. The full Form 4 contains 4 transaction entries.

Disclosed: Sep 30, 2026

Reported details

4 entries

All validated entries in this disclosure
Security	Owner	Date	Code	Action	Quantity	Price	Following holdings	Reporting delay	Filed terms and references
Common Stock	Lazar David E.	2026-09-24	C	Conversion	1300530	0	8,038,030	6 days	Filed terms security Title: Common Stock transaction Date: 2026-09-24 deemed Execution Date: transaction Form Type: 4 transaction Code: C equity Swap Involved: 0 transaction Timeliness: transaction Shares: 1300530 transaction Price Per Share: 0 id: F1 transaction Acquired Disposed Code: A shares Owned Following Transaction: 8038030 direct Or Indirect Ownership: D
Series AAA Convertible Non-Redeemable Preferred Stock (derivative)	Lazar David E.	2026-09-25	S	Sale	1750000	6.703	0	5 days	Filed terms security Title: Series AAA Convertible Non-Redeemable Preferred Stock conversion Or Exercise Price: 0.0148 transaction Date: 2026-09-25 deemed Execution Date: transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 transaction Timeliness: transaction Shares: 1750000 transaction Price Per Share: 6.703 id: F3 transaction Acquired Disposed Code: D exercise Date: 2026-07-17 id: F2 underlying Security Title: Common Stock underlying Security Shares: 236425000 shares Owned Following Transaction: 0 direct Or Indirect Ownership: D
Series AA Convertible Non-Redeemable Preferred Stock (derivative)	Lazar David E.	2026-09-25	S	Sale	706100	0.382	0	5 days	Filed terms security Title: Series AA Convertible Non-Redeemable Preferred Stock conversion Or Exercise Price: 0.2597 transaction Date: 2026-09-25 deemed Execution Date: transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 transaction Timeliness: transaction Shares: 706100 transaction Price Per Share: 0.382 id: F3 transaction Acquired Disposed Code: D exercise Date: 2026-07-17 id: F2 underlying Security Title: Common Stock underlying Security Shares: 5436970 shares Owned Following Transaction: 0 direct Or Indirect Ownership: D
Series AA Convertible Non-Redeemable Preferred Stock (derivative)	Lazar David E.	2026-09-24	C	Conversion	168900	0	706,100	6 days	Filed terms security Title: Series AA Convertible Non-Redeemable Preferred Stock conversion Or Exercise Price: 0 id: F1 transaction Date: 2026-09-24 deemed Execution Date: transaction Form Type: 4 transaction Code: C equity Swap Involved: 0 transaction Timeliness: transaction Shares: 168900 transaction Price Per Share: 0 transaction Acquired Disposed Code: D exercise Date: 2026-07-17 id: F2 underlying Security Title: Common Stock underlying Security Shares: 1300530 shares Owned Following Transaction: 706100 direct Or Indirect Ownership: D

Common Stock

Owner: Lazar David E.
Date: 2026-09-24
Code: C
Action: Conversion
Quantity: 1300530
Price: 0
Following holdings: 8,038,030
Reporting delay: 6 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-09-24
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 1300530
transaction Price Per Share: 0
id: F1
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 8038030
direct Or Indirect Ownership: D

Series AAA Convertible Non-Redeemable Preferred Stock (derivative)

Owner: Lazar David E.
Date: 2026-09-25
Code: S
Action: Sale
Quantity: 1750000
Price: 6.703
Following holdings: 0
Reporting delay: 5 days
Filed terms and references: Filed terms
security Title: Series AAA Convertible Non-Redeemable Preferred Stock
conversion Or Exercise Price: 0.0148
transaction Date: 2026-09-25
deemed Execution Date:
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 1750000
transaction Price Per Share: 6.703
id: F3
transaction Acquired Disposed Code: D
exercise Date: 2026-07-17
id: F2
underlying Security Title: Common Stock
underlying Security Shares: 236425000
shares Owned Following Transaction: 0
direct Or Indirect Ownership: D

Series AA Convertible Non-Redeemable Preferred Stock (derivative)

Owner: Lazar David E.
Date: 2026-09-25
Code: S
Action: Sale
Quantity: 706100
Price: 0.382
Following holdings: 0
Reporting delay: 5 days
Filed terms and references: Filed terms
security Title: Series AA Convertible Non-Redeemable Preferred Stock
conversion Or Exercise Price: 0.2597
transaction Date: 2026-09-25
deemed Execution Date:
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 706100
transaction Price Per Share: 0.382
id: F3
transaction Acquired Disposed Code: D
exercise Date: 2026-07-17
id: F2
underlying Security Title: Common Stock
underlying Security Shares: 5436970
shares Owned Following Transaction: 0
direct Or Indirect Ownership: D

Series AA Convertible Non-Redeemable Preferred Stock (derivative)

Owner: Lazar David E.
Date: 2026-09-24
Code: C
Action: Conversion
Quantity: 168900
Price: 0
Following holdings: 706,100
Reporting delay: 6 days
Filed terms and references: Filed terms
security Title: Series AA Convertible Non-Redeemable Preferred Stock
conversion Or Exercise Price: 0
id: F1
transaction Date: 2026-09-24
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 168900
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
exercise Date: 2026-07-17
id: F2
underlying Security Title: Common Stock
underlying Security Shares: 1300530
shares Owned Following Transaction: 706100
direct Or Indirect Ownership: D

Purchases, sales, grants and option exercises are different transactions. The reported code identifies the action; it does not establish a motive.

Filing context

Quantities and prices are shown in the units filed. No trade value is inferred from their product.
Lazar David E.: Chief Executive Officer, Director, Other reporting owner.
F1: On September 25, 2026, the Reporting Person converted 168,900 shares of the Series AA Convertible Non-Redeemable Preferred Stock (the "Series AA Preferred Shares") for no additional consideration.
F2: Each of the Series AA Preferred Shares and the Series AAA Convertible Non-Redeemable Preferred Stock (the "Series AAA Preferred Shares") are perpetual and therefore have no expiration date.
F3: On September 25, 2026, the Reporting Person sold 706,100 Series AA Preferred Shares and 1,750,000 Series AAA Preferred Shares to multiple purchasers for an aggregate purchase price of $12,000,000, pursuant to a Securities Purchase Agreement. The aggregate purchase price was not allocated between the Series AA Preferred Shares and the Series AAA Preferred Shares in the Securities Purchase Agreement; the per-share prices reported reflect an allocation of the aggregate purchase price between the two series pro rata based on the number of shares of Common Stock underlying each series.

Original sources

SEC ownership filing

Prepared automatically from public filing data. Report a correction.

Security

Owner

Date

Code

Action

Quantity

Price

Following holdings

Reporting delay

Filed terms and references

Common Stock

Lazar David E.

2026-09-24

Conversion

1300530

8,038,030

6 days

Filed terms

security Title: Common Stock
transaction Date: 2026-09-24
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 1300530
transaction Price Per Share: 0
id: F1
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 8038030
direct Or Indirect Ownership: D

Series AAA Convertible Non-Redeemable Preferred Stock (derivative)

Lazar David E.

2026-09-25

Sale

1750000

6.703

5 days

Filed terms

security Title: Series AAA Convertible Non-Redeemable Preferred Stock
conversion Or Exercise Price: 0.0148
transaction Date: 2026-09-25
deemed Execution Date:
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 1750000
transaction Price Per Share: 6.703
id: F3
transaction Acquired Disposed Code: D
exercise Date: 2026-07-17
id: F2
underlying Security Title: Common Stock
underlying Security Shares: 236425000
shares Owned Following Transaction: 0
direct Or Indirect Ownership: D

Series AA Convertible Non-Redeemable Preferred Stock (derivative)

Lazar David E.

2026-09-25

Sale

706100

0.382

5 days

Filed terms

security Title: Series AA Convertible Non-Redeemable Preferred Stock
conversion Or Exercise Price: 0.2597
transaction Date: 2026-09-25
deemed Execution Date:
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 706100
transaction Price Per Share: 0.382
id: F3
transaction Acquired Disposed Code: D
exercise Date: 2026-07-17
id: F2
underlying Security Title: Common Stock
underlying Security Shares: 5436970
shares Owned Following Transaction: 0
direct Or Indirect Ownership: D

Series AA Convertible Non-Redeemable Preferred Stock (derivative)

Lazar David E.

2026-09-24

Conversion

168900

706,100

6 days

Filed terms

security Title: Series AA Convertible Non-Redeemable Preferred Stock
conversion Or Exercise Price: 0
id: F1
transaction Date: 2026-09-24
deemed Execution Date:
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Timeliness:
transaction Shares: 168900
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
exercise Date: 2026-07-17
id: F2
underlying Security Title: Common Stock
underlying Security Shares: 1300530
shares Owned Following Transaction: 706100
direct Or Indirect Ownership: D

Filing context

Quantities and prices are shown in the units filed. No trade value is inferred from their product.

Lazar David E.: Chief Executive Officer, Director, Other reporting owner.

F1: On September 25, 2026, the Reporting Person converted 168,900 shares of the Series AA Convertible Non-Redeemable Preferred Stock (the "Series AA Preferred Shares") for no additional consideration.

F2: Each of the Series AA Preferred Shares and the Series AAA Convertible Non-Redeemable Preferred Stock (the "Series AAA Preferred Shares") are perpetual and therefore have no expiration date.

F3: On September 25, 2026, the Reporting Person sold 706,100 Series AA Preferred Shares and 1,750,000 Series AAA Preferred Shares to multiple purchasers for an aggregate purchase price of $12,000,000, pursuant to a Securities Purchase Agreement. The aggregate purchase price was not allocated between the Series AA Preferred Shares and the Series AAA Preferred Shares in the Securities Purchase Agreement; the per-share prices reported reflect an allocation of the aggregate purchase price between the two series pro rata based on the number of shares of Common Stock underlying each series.