Robert S. Sullivan - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
Robert S. Sullivan has filed 1 SEC Form 4 filing across 1 company in the last 90 days.
Profile
Robert S. Sullivan serves as Director of American Assets Trust, Inc. (AAT). Sullivan has reported 2 insider filings with the SEC since 2025. The most recent filing was in June 2026.
| Role | Director |
|---|---|
| Notability | 26/100 |
Board memberships
- American Assets Trust, Inc.
Reported roles
- Director
Trading Pattern
InsiderAlpha's records for Robert S. Sullivan go back to 2025: 2 primary Form 4 filings, an average of 1.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role Robert S. Sullivan has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Director at American Assets Trust, Inc. (AAT) - 2 filings, 2025 to 2026
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-01 | AAT | American Assets Trust, Inc. | A - Grant or award | 3.8K | $0.00 | |
| 2025-06-02 | AAT | American Assets Trust, Inc. | A - Grant or award | 4.5K | $0.00 |
Companies - Last 90 Days
- American Assets Trust, Inc. (AAT) - 1 filing, last 2026-06-01
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies Robert S. Sullivan has recently filed at. Multiple unrelated insiders buying the same stock within a short window - cluster buying - has historically been one of the strongest Form 4 signals.
- Ernest S. Rady - $16.07M of AAT open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Saul B. Rosenthal
- Jack Ross
- Martine A. Rothblatt
- Saba Capital Management, L.P.
- Nicholas S. Schorsch
- Trygve Seglem
- Lawrence B. Seidman
- Thomas J. Shaw
Frequently Asked Questions
Who is Robert S. Sullivan?
Robert S. Sullivan serves as Director of American Assets Trust, Inc. (AAT). Sullivan has reported 2 insider filings with the SEC since 2025. The most recent filing was in June 2026.…
How many SEC Form 4 filings has Robert S. Sullivan submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Where can I see all of Robert S. Sullivan's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live Robert S. Sullivan profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.