Ben Landen - 22 Oct 2026 Form 4 Insider Report for Forge Nano Holdings, Inc. (NANO)

Reporting relationship: Director
Issuer ticker: NANO
Reported as of: 22 Oct 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 26 Oct 2026, 21:31:37 UTC
Prior SEC filing: 23 Jan 2026
Source filing: View source filing
Reporting owner signature: /s/ Michael Kleinberg, as Attorney-in-fact for Ben Landen

Filing notes and source

Key filing fact

Ben Landen filed Form 4 for Forge Nano Holdings, Inc. (NANO) on 26 Oct 2026.

Key facts

This page summarizes Ben Landen's Form 4 filing for Forge Nano Holdings, Inc. (NANO).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 26 Oct 2026, 21:31.

Change

Previous filing in this sequence was filed on 23 Jan 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 0001889093 Primary reporting owner

Landen Ben

Relationship: Director
Address: C/O FORGE NANO HOLDINGS, INC., 12300 GRANT STREET, SUITE 110, THORNTON
Signature: /s/ Michael Kleinberg, as Attorney-in-fact for Ben Landen
Signature date: 26 Oct 2026

Reported non-derivative transactions

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

NANO transaction

Common Stock, par value $0.0001 per share

Award

Transaction value
Shares: +91,987
Change %
Price
Shares after: 91,987
Date: 22 Oct 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

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

NANO transaction Derivative

Private Placement Warrants (right to buy)

Award

Transaction value
Shares: +1,250
Change %
Price
Shares after: 1,250
Date: 22 Oct 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1,250
Exercise price: $11.50
Footnotes: F2

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Received in exchange for ordinary shares of Archimedes Tech SPAC Partners II Co. ("ATII") in connection with the merger of ATII with and into the Issuer (the "Domestication Merger") as part of the Issuer's business combination (the "Business Combination") pursuant to the Agreement and Plan of Merger dated April 20, 2026, by and among ATII, the Issuer (f/k/a ATII Holdings Inc.), ATII Merger Sub Inc., ATII Merger Sub II, LLC and Forge Nano, Inc.

Footnote F2

Represents private placement warrants of ATII, each exercisable for one ordinary share at $11.50 per share, that were exchanged in the Domestication Merger for an equal number of warrants of the Issuer, each exercisable for one share of Common Stock at $11.50 per share.