Insider · CIK 0001328287
Mark A Emalfarb
Files at DYAI (DYADIC INTERNATIONAL INC). First filing -, latest -.
Mark A Emalfarb files SEC Form 4 as CEO, president, director and 10% owner at DYAI (DYADIC INTERNATIONAL INC). No open-market trade is on file; the transactions below are grants, exercises and other rows that carry no view on the price.
A track record needs three past buys with six months of prices behind them; Mark A Emalfarb has 0, so none is measured yet.
Signals
This insider’s open-market buys and sells, scored.
Transactions
Every row this insider has filed, 7 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jan 2, 2026 | DYAI DYADIC INTERNATIONAL INC | AGrant or award Common Stock | +102,609 | $0.00 | $0 | 4,832,667 | Jan 6, 2026 |
| Jan 2, 2026 | DYAI DYADIC INTERNATIONAL INC | AGrant or award Stock Optionderivative | +126,000 | $0.00 | $0 | 126,000 | Jan 6, 2026 |
| Dec 23, 2025 | DYAI DYADIC INTERNATIONAL INC | DDisposition to issuer Senior Secured Convertible Promissory Note due March 8, 2027derivativeindirect: Through Mark A Emalfarb Trust U/A/ DTD 10/1/1987 | - | - | - | 0 | Dec 29, 2025 |
| Dec 23, 2025 | DYAI DYADIC INTERNATIONAL INC | AGrant or award Senior Secured Convertible Promissory Note due Dec 31, 2027derivativeindirect: Through Mark A Emalfarb Trust U/A/ DTD 10/1/1987 | - | - | - | - | Dec 29, 2025 |
| Sep 15, 2025 | DYAI DYADIC INTERNATIONAL INC | POpen-market purchase Senior Secured Convertible Promissory Note due March 8, 2027derivativeindirect: Through Mark A Emalfarb Trust U/A/ DTD 10/1/1987 | - | $1,000,000.00 | - | - | Sep 17, 2025 |
| Jan 2, 2025 | DYAI DYADIC INTERNATIONAL INC | AGrant or award Common Stock | +73,111 | $0.00 | $0 | 4,730,058 | Jan 7, 2025 |
| Jan 2, 2025 | DYAI DYADIC INTERNATIONAL INC | AGrant or award Stock Optionderivative | +172,000 | $0.00 | $0 | 172,000 | Jan 7, 2025 |
Questions about Mark A Emalfarb
Answered from the filings on this page, as of the latest one.
Is Mark A Emalfarb buying or selling?
Mark A Emalfarb has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.
How did Mark A Emalfarb's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Mark A Emalfarb has 0.
Where does Mark A Emalfarb file Form 4?
Mark A Emalfarb has filed Form 4 at DYAI (DYADIC INTERNATIONAL INC) as CEO. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.