Venture
AT Umbrella LLC
Latest Form D 2026-11-04- CIK 2163101
- State CA
- Business Services
- 1 Form D offering since 2026-11-04
- Total sold
- $1.9B
- across its one offering
- Rounds
- 1
- Form D offerings since 2026-11-04
- Latest round
- $1.9B
- 2026-11-04 · 021-603655
- Investors
- 1
- on the latest round
Connected
named in its Form D filingsRound timeline
amount sold · by first filed2026-11-04 · $1.9B · new
- 2026-11-04$1.9B021-603655new
Hover a dot or row, or tab through the dots · bars scaled to the largest round ($1.9B)
Form D offerings
One line per offering, amendments folded in, newest first
| File | First filed | Latest | Sought | Sold | Investors | Exemptions |
|---|---|---|---|---|---|---|
| 021-603655 | First filed2026-11-04 | Latest2026-11-04 | Sought$1.9B | Sold$1.9B | Investors1 | Exemptions506(b) |
Who backs AT Umbrella LLC, inferred from co-filings, and every Form D as filedSee plans
People
Named in Item 3 of its latest Form D, filed 2026-11-04
| Name | Relationship |
|---|---|
| Mark L. Vorsatz | RelationshipExecutive Officer, Director |
| Neal Livingston | RelationshipExecutive Officer |
| Daniel DePaoli | RelationshipDirector |
| Peter Cosica | RelationshipDirector |
| William Deckelman | RelationshipExecutive Officer |
| Robert V. Gunderson | RelationshipDirector |
| John R. Joyce | RelationshipDirector |
| John F. Nicolai | RelationshipDirector |
| Ronald L. Olson | RelationshipDirector |
| Frank Cassidy | RelationshipDirector |
| Adam Steinberger | RelationshipDirector |
| Chad Thiel | RelationshipDirector |
Facts
As its latest Form D states them
- Industry
- Business Services
- State
- California (CA)
- Exemptions
- Rule 506(b)
- First filed
- 2026-11-04
- Latest filing
- 2026-11-04
Who backs AT Umbrella LLC
Form D names a startup's officers and directors, not its investors. The dashboard infers them — the venture funds whose own filings and people overlap this company's rounds — and lays every Form D and amendment it filed beside the totals above.
- Inferred investors — the funds and firms behind it, from co-filings and shared people
- Every Form D and amendment as filed, with what each one stated
- Its rounds in sequence: the gap between them and whether they grew
- Everyone its filings name, linked to their other companies, with its addresses and phone numbers
Part of the Venture plan — $140/mo at launch pricing ($350 list)
See plans
External link: SEC Filings ↗