Quick Takeaways
- Michael Martin Breen has 2 issuer positions tracked on this page.
- Estimated disclosed ownership value: $5,723,415.
- Recent insider filing activity is available below.
- Info
- Insider Ownership
Insider Trading & Ownership of Michael Martin Breen
- Location
- Liphook, United Kingdom
- Summary
- The estimated net worth of Michael Martin Breen is at least $5,723,415 dollars as of 08 Sep 2025. Michael Martin Breen is the Director of Prairie Operating Co. and owns shares of Prairie Operating Co. (PROP) stock worth about $5.72M.
- Signature
- /s/ Michael Martin Breen
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Michael Martin Breen and return when a new Insider Trading filing changes the record on this page.
This uses the existing product follow flow to surface future filing-backed changes without guessing what they mean.
What Changed
- Largest disclosed position: Prairie Operating Co. ($5,723,415).
- Past-year value change for that position: .
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Source Evidence
Filed on Form 4
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of Michael Martin Breen
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| PROP | Prairie Operating Co. | Director | $5,723,415 | 03 May 2023 | ||
| GTBP | GT Biopharma, Inc. | CEO and Director, Director | 04 Sep 2025 |
Insider Transactions Reported by Michael Martin Breen:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.