David J. Mueller - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
David J. Mueller has filed 4 SEC Form 4 filings across 1 company in the last 90 days - selling. Lifetime open-market sales: $68K.
Profile
David J. Mueller is Director at SmartStop Self Storage REIT, Inc. (SMA). Mueller has reported 6 insider filings with the SEC since 2026. The most recent filing was in July 2026.
| Role | Director |
|---|---|
| Notability | 26/100 |
Board memberships
- SmartStop Self Storage REIT, Inc.
Reported roles
- Director
Awards & honors
- Director at SmartStop Self Storage REIT, Inc.
Trading Pattern
InsiderAlpha's records for David J. Mueller go back to 2026: 6 primary Form 4 filings, an average of 6.0 per year. 5 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Career & Filing History
Every role David J. Mueller 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 SmartStop Self Storage REIT, Inc. (SMA) - 6 filings, 2026
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-16 | SMA | SmartStop Self Storage REIT, Inc. | S - Open-market sale [10b5-1] | 425 | $33.38 | $14K |
| 2026-06-18 | SMA | SmartStop Self Storage REIT, Inc. | S - Open-market sale [10b5-1] | 425 | $32.44 | $14K |
| 2026-05-19 | SMA | SmartStop Self Storage REIT, Inc. | S - Open-market sale [10b5-1] | 425 | $29.67 | $13K |
| 2026-04-17 | SMA | SmartStop Self Storage REIT, Inc. | S - Open-market sale [10b5-1] | 425 | $31.78 | $14K |
| 2026-03-17 | SMA | SmartStop Self Storage REIT, Inc. | S - Open-market sale [10b5-1] | 425 | $32.81 | $14K |
Companies - Last 90 Days
- SmartStop Self Storage REIT, Inc. (SMA) - 4 filings, last 2026-07-16
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies David J. Mueller 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.
- H. Michael Schwartz - $198K of SMA open-market activity in the last 12 months
- James R. Barry - $20K of SMA open-market activity in the last 12 months
- Nicholas Look - $15K of SMA open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Charles A. Davis
- Deep Track Biotechnology Master Fund, Ltd.
- Robert E. Dixon
- Romeo R. Dizon
- Kevin Michael Donahue
- DONEGAL MUTUAL INSURANCE CO
- DORCHESTER MINERALS OPERATING LP
- Robert W. Duggan
Frequently Asked Questions
Who is David J. Mueller?
David J. Mueller is Director at SmartStop Self Storage REIT, Inc. (SMA). Mueller has reported 6 insider filings with the SEC since 2026. The most recent filing was in July 2026.…
How many SEC Form 4 filings has David J. Mueller submitted recently?
4 primary Form 4 filings in the last 90 days, covering 1 company.
Has David J. Mueller been buying or selling stock?
Recorded transactions: 0 open-market purchases and 5 open-market sales ($68K) across all tracked filings.
Where can I see all of David J. Mueller'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 David J. Mueller profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.