Daniel Waldemar Bradtke - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
Daniel Waldemar Bradtke has filed 1 SEC Form 4 filing across 1 company in the last 90 days - buying. Lifetime open-market purchases: $20K.
Profile
Daniel Waldemar Bradtke serves as Director of High Roller Technologies, Inc. (ROLR). Bradtke has reported 4 insider filings with the SEC since 2024. The most recent filing was in May 2026.
| Role | Director |
|---|---|
| Notability | 26/100 |
Board memberships
- High Roller Technologies, Inc.
Reported roles
- Director
Trading Pattern
InsiderAlpha's records for Daniel Waldemar Bradtke go back to 2024: 4 primary Form 4 filings, an average of 1.3 per year. The typical open-market purchase is $20K (1 buy totaling $20K). The largest single buy on record is $20K of ROLR in 2024. 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 Daniel Waldemar Bradtke 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 High Roller Technologies, Inc. (ROLR) - 2 filings, 2025 to 2026
- Director at High Roller Technologies, Inc. (ROLR) - 2 filings, 2024
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2025-08-01 | ROLR | High Roller Technologies, Inc. | A - Grant or award | 24.1K | $0.00 | |
| 2024-10-25 | ROLR | High Roller Technologies, Inc. | P - Open-market purchase | 2.5K | $8.00 | $20K |
Companies - Last 90 Days
- High Roller Technologies, Inc. (ROLR) - 1 filing, last 2026-05-21
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies Daniel Waldemar Bradtke 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.
- Brandon Christopher Eachus - $50K of ROLR open-market activity in the last 12 months
- Adam Jonathan Felman - $25K of ROLR open-market activity in the last 12 months
- Benjamin Michael Clemes - $15K of ROLR open-market activity in the last 12 months
- Seth Adam Young - $12K of ROLR open-market activity in the last 12 months
- John Milton Francis IV - $9K of ROLR open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Kenneth Bryan Dart
- 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
Frequently Asked Questions
Who is Daniel Waldemar Bradtke?
Daniel Waldemar Bradtke serves as Director of High Roller Technologies, Inc. (ROLR). Bradtke has reported 4 insider filings with the SEC since 2024. The most recent filing was in May 2026.…
How many SEC Form 4 filings has Daniel Waldemar Bradtke submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Daniel Waldemar Bradtke been buying or selling stock?
Recorded transactions: 1 open-market purchase ($20K) and 0 open-market sales across all tracked filings.
Where can I see all of Daniel Waldemar Bradtke'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 Daniel Waldemar Bradtke profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.