Mazarakis John
Director · Officer · Ten-percent owner · REFI, LIEN
As of 2026-09-16, Mazarakis John has 20 Form 4 transactions on record across 2 companies — 17 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Reconstructed holdings
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-08-27 | REFI | Purchase | 7,530 @ $10.67 | $80K | +1.5% of holding | 526,562 | Form 4 |
| 2026-08-26 | REFI | Purchase | 40,181 @ $10.67 | $429K | +8.4% of holding | 519,032 | Form 4 |
| 2026-08-21 | REFI | Purchase | 145 @ $10.67 | $2K | +0.0% of holding | 478,851 | Form 4 |
| 2026-08-17 | LIEN | Purchase | 60,000 @ $9.44 | $566K | ownership Δ n/a | 60,000 | Form 4 |
| 2026-08-17 | REFI | Purchase | 25,000 @ $10.25 | $256K | +5.5% of holding | 478,706 | Form 4 |
| 2025-10-16 | REFI | Purchase | 8,000 @ $12.75 | $102K | +2.0% of holding | 416,607 | Form 4 |
| 2025-10-01 | REFI | Purchase | 7,500 @ $12.43 | $93K | +1.9% of holding | 408,607 | Form 4 |
13 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-04-20 | REFI | Award / grant | 37,099 | 453,706 | Form 4 |
| 2025-12-29 | — | Withheld for tax | 3,502,150 | 9,833,737 | Form 4 |
| 2025-12-29 | — | Withheld for tax | 801,849 | 13,335,887 | Form 4 |
| 2025-12-17 | — | Option exercise | 5,700,000 | 13,300,000 | Form 4 |
| 2025-12-17 | — | Award / grant | 5,700,000 | 10,937,736 | Form 4 |
| 2025-12-17 | — | Award / grant | 5,700,000 | 10,937,736 | Form 4 |
| 2025-12-17 | — | Award / grant | 3,200,000 | 14,137,736 | Form 4 |
| 2025-12-17 | — | Award / grant | 3,200,000 | 14,137,736 | Form 4 |
| 2025-11-13 | — | Award / grant | 2,037,736 | 5,237,736 | Form 4 |
| 2025-11-13 | — | Award / grant | 2,037,736 | 5,237,736 | Form 4 |
| 2025-05-09 | — | Award / grant | 19,000,000 | 19,000,000 | Form 4 |
| 2025-04-01 | REFI | Award / grant | 28,398 | 401,107 | Form 4 |
| 2024-12-17 | — | Award / grant | 3,200,000 | 3,200,000 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.