Reporting owner · CIK 0001867660
Mazarakis John
SEC Form 4 history across 2 companies, 4 transactions and 3 filings.
CHAIRExecutive ChairmanChicago Atlantic Real Estate Finance, Inc.
Open-market transaction mix100% buys4 buys · 0 sales
Available history · Aug 17, 2026 – Aug 27, 2026
Latest insider transactions
Form 4 filings from available history.| Company | Insider | Activity | Disclosed value | Filed (ET) |
|---|---|---|---|---|
REFIChicago Atlantic Real Estate Finance, Inc. | Mazarakis JohnCHAIR | P · buySEC filing ↗ | $80.3kView disclosure → | |
REFIChicago Atlantic Real Estate Finance, Inc. | Mazarakis JohnCHAIR | P · buySEC filing ↗ | $428kView disclosure → | |
LIENChicago Atlantic BDC, Inc. | Mazarakis John10% | P · buySEC filing ↗ | $566kView disclosure → | |
REFIChicago Atlantic Real Estate Finance, Inc. | Mazarakis JohnCHAIR | P · buySEC filing ↗ | $256kView disclosure → |
Latest Form 4 facts
Quick context from source filings
Latest open-market transaction
buy at Chicago Atlantic Real Estate Finance, Inc. on Aug 27, 2026 valued at $80,345.
Review SEC filingLatest buy
buy at Chicago Atlantic Real Estate Finance, Inc. on Aug 27, 2026 valued at $80,345.
Review SEC filingLatest sale
No open-market insider sale is available.
Monthly open-market activity
Last 1 reported months · purchases and sales
View exact monthly values
| Month | Purchases | Sales | Buy value | Sale value | Net value |
|---|---|---|---|---|---|
| Aug 2026 | 4 | 0 | $1,331,664.75 | $0.00 | $1,331,664.75 |
Net value is disclosed purchases minus sales, not profit. A dash means the value is unavailable.
Ownership and transaction size
Ownership and ticket size
Average P/S size$332.9K
Median P/S size$342.5K
Direct4
Indirect0
Aug 27, 2026buy
Filing-only signals
Deterministic matches in this insider's history
Associated companies
Companies in the disclosed reporting history
Open-market buy performance
90-day forward return on this insider's open-market purchases
Forward return is not available yet
No purchases currently have the price observations needed for a 90-day return. This may reflect incomplete price coverage or purchases that have not reached the return window.
Disclosed ownership
How reported shareholdings evolved
Non-derivative shares held after reported transactions—not stock prices or a complete portfolio.
3 observations · Aug 17, 2026 – Aug 27, 2026. Window ends at the latest available report, not today.
Selected observation · Aug 27, 2026526,562 shares reported
Inspect transaction View exact observations and source transactions
| Transaction date | Shares held after | Filed | Source |
|---|---|---|---|
| Aug 17, 2026 | 478,706 | Aug 19, 2026 | View transaction |
| Aug 26, 2026 | 519,032 | Aug 28, 2026 | View transaction |
| Aug 27, 2026 | 526,562 | Aug 28, 2026 | View transaction |
Securities and direct/indirect ownership contexts are kept separate and never summed. Joint filings may associate the same disclosed row with multiple owners. Unknown values are omitted, not treated as zero. Lines connect observations for readability; they do not establish holdings between filings, cost basis, or current ownership. Amendments and stock splits require reviewing the source.
Mazarakis John Insider Activity FAQ
SEC Form 4 context
Who is Mazarakis John?
Mazarakis John is a reporting owner in SEC Form 4 filings with reporting owner CIK 0001867660.
Which companies has Mazarakis John reported transactions for?
Chicago Atlantic Real Estate Finance, Inc., Chicago Atlantic BDC, Inc.
When was Mazarakis John's latest insider buy?
buy at Chicago Atlantic Real Estate Finance, Inc. on Aug 27, 2026 valued at $80,345.
When was Mazarakis John's latest insider sale?
No open-market insider sale is available for this period.
Where can I see the original SEC filings?
Each transaction row links directly to the source SEC filing so the reported Form 4 details can be reviewed.
Are performance metrics included?
The profile shows average and median 90-day stock returns after open-market purchases when price coverage is available. These are unadjusted stock returns, not realized trading gains. Win rates, benchmark-adjusted returns and conviction scores are not calculated.