| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
CEO | President and CEO
1 company
Mark A Emalfarb is CEO at DYAI. Mark A Emalfarb's net worth is not public. Form 4 filings only show shares in the companies where this person is an insider; those holdings are worth an estimated $1.7M at current prices.
Historically, Mark A Emalfarb's trades have earned a strong insider score of 72/100 across 9 rated trades. Over a 12-month horizon, all 9 of those trades were profitable, with an average 12-month return of +43.4%.
The DYAI filings lean toward selling, a net 422,972 shares.
Mark A Emalfarb has 14 Form 4 filings on record from April 2019 to January 2026, all as CEO at Dyadic International (DYAI), 2019–2026.
The 28 reported transactions were 9 open-market sales, 8 option or other derivative awards, 5 option exercises and 4 stock awards, plus smaller numbers of other types.
Counted by filing, the open-market trades come to no purchases and 3 sales worth about $1.6M.
The largest open-market sale was 235,070 shares of DYAI at an average $3.79 on June 4, 2021, about $890K. Twelve months later DYAI was down 31%.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Dec 23, 2021 | DYAI Dyadic International Inc | President and CEO | Sale+OE | 90,902 | $4.17 | $379,502.96 | -2.1% | -19.2% | -66.7% | |
| Jun 9, 2021 | DYAI Dyadic International Inc | President and CEO | Sale+OE | 97,000 | $3.86 | $373,960.00 | -2.2% | +62.6% | -29.0% | |
| Jun 4, 2021 | DYAI Dyadic International Inc | President and CEO | Sale+OE | 235,070 | $3.79 | $890,208.07 | -5.6% | +58.2% | -30.6% |