MARK A EMALFARB
CIK 1328287 · CEO · last filed 2026-01-06
MARK A EMALFARB is a CEO who has filed 15 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing, for DYAI, was dated Jan 6, 2026. Across all open-market trades the lifetime net is −$1.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $6.3M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$6.29M
2
15
-$1.64M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| DYAI | CEO | 9,226,682 | $0.68 | $6.29M | -$1.64M | 13 | 2026-01-06 |
| DYADIC INTERNATIONAL INC (DIL) Delisted | President and CEO | 4,166,987 | — | — | $0 | 2 | 2019-04-12 |
Recent Filings
15 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-01-06 | DYAI | Grant (A) | +102,609 | $0 | EDGAR |
| 2025-12-29 | DYAI | Mixed | — | $0 | EDGAR |
| 2025-09-17 | DYAI | Buy (P) | — | $0 | EDGAR |
| 2025-01-07 | DYAI | Grant (A) | +73,111 | $0 | EDGAR |
| 2024-04-15 | DYAI | Grant (A) | +124,454 | $0 | EDGAR |
| 2024-01-04 | DYAI | Grant (A) | — | $0 | EDGAR |
| 2023-01-05 | DYAI | Grant (A) | +138,478 | $191.1K | EDGAR |
| 2022-01-05 | DYAI | Grant (A) | — | $0 | EDGAR |
| 2021-12-23 | DYAI | Mixed | +59,098 | -$135.0K | EDGAR |
| 2021-06-09 | DYAI | Mixed | +3,000 | -$207.0K | EDGAR |