01 / Federal record
Federal criminal convictions
Daniel L. Sheehan, former Chief Financial Officer of Archimedes Tech SPAC Partners II and a director of Archimedes Tech SPAC Partners III, pleaded guilty to two federal criminal offenses:
- Conspiracy, under 18 U.S.C. § 371.
- Making materially false statements in a loan application to a federally insured savings and loan institution, under 18 U.S.C. § 1014.
The underlying federal charging Information describes a scheme involving fabricated financial information, fictitious assets, false business representations, and fabricated verification of bank deposits. These are allegations described in the charging document; the judgment establishes guilty pleas and convictions on the two counts.
Federal case: United States v. Daniel L. Sheehan, No. CR-88-20048-RPA.
The United States District Court for the Northern District of California imposed a sentence that included a six-month sentence, as reported in the original publication.
The court records establish the historical convictions. Whether omitting that history from later executive biographies constituted a material securities-law omission requires a separate legal and factual assessment.
02 / SEC filing record
Three successive Archimedes SPACs
Sheehan subsequently held senior executive or board positions in three successive Archimedes SPACs. The cited prospectuses and filings describe his legal, tax, financial, investment and management qualifications, but do not mention the federal convictions.
Chief Operating Officer
The March 2021 IPO prospectus described his legal, tax, business and management experience.
IPO prospectus · p. 70Chief Financial Officer and Director
Professional biography repeated through IPO, annual filings and the Forge Nano transaction.
2025 annual reportDirector
The January 2026 IPO prospectus again described his professional qualifications.
IPO prospectus · p. 103Archimedes II — repeated biographies
Between 2024 and 2026, the original research identified Sheehan's biography in 14 public SEC filing documents, as well as two draft registration submissions, associated with Archimedes II and the Forge Nano business combination. These repeated biographies emphasized favorable professional credentials without mentioning the convictions.
- October 2024 — Form S-1 registration statement
- February 2025 — IPO final prospectus
- March 2026 — Form 10-K annual report
- September 2026 — Forge Nano transaction prospectus
The documented absence of the convictions from the cited biographies across three successive SPACs is the subject of this research. It does not alone establish that disclosure was legally mandatory or that any other participant knew of the convictions.
03 / Financial reporting
Personally signed SEC financial certifications
As Chief Financial Officer and Principal Financial and Accounting Officer of Archimedes II, Sheehan signed SEC reports and executed certifications pursuant to Section 302 of the Sarbanes-Oxley Act.
His March 3, 2026 certification addressed the accuracy of the company's annual report, fair presentation of financial information, disclosure controls and internal control over financial reporting.
Daniel L. Sheehan — signed CFO certification, Exhibit 31.2
That certification addressed the company's annual report and applicable reporting obligations. It is not, by itself, evidence that the report contained false financial statements. The connection between the historical conviction and later duties raises questions about management vetting and disclosure review.
04 / Independent examination
Questions arising from the records
The federal judgment establishes the convictions. The SEC filings document the biographies presented to investors, executive and board appointments, and financial-officer certification. Together, these raise questions for independent examination:
- Knowledge
Were the convictions known to the Archimedes sponsors, directors, audit committees or independent auditors?
- Diligence
How was Sheehan's criminal history evaluated when considering his qualifications for senior financial and board responsibilities?
- Disclosure
How was the completeness of his professional biography assessed when filings repeatedly emphasized his financial experience and business judgment?
These are investigative questions, not findings that other individuals or entities committed wrongdoing.
05 / Verify the source record
Primary-source documentation
Read the court and SEC materials directly rather than relying on secondhand characterizations. External source links open in a new tab.
SEC entity identifiers
| Registrant | SEC CIK |
|---|---|
| Archimedes Tech SPAC Partners I | 0001840856 |
| Archimedes Tech SPAC Partners II | 0002028516 |
| Archimedes Tech SPAC Partners III | 0002083910 |
| Forge Nano transaction registrant, ATII Holdings Inc. | 0002101833 |
The original court documents and SEC filings provide the evidence. Readers can examine those records and reach their own conclusions.
About this publication. This is an independent, unaffiliated research website. It presents public-record facts and questions concerning corporate disclosures. The existence of a historical criminal conviction does not, by itself, establish that an SEC filing violated securities law, or that other persons or firms had knowledge of the convictions. Descriptions of conduct in the charging Information are distinguished from the judgment's findings of guilt.