DYAI
insider transactionsDYADIC INTERNATIONAL INC — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
No open-market buys or sells this period. The trades below are grants, option exercises and gifts, which carry no market price.
Net buy / sell volume
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Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
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Grant·A
VP of Research and Bus. Dvlpmt
$0
47.2K sh
Own New
-
Grant·A
VP of Research and Bus. Dvlpmt
$0
18.1K sh
Own +55%
-
Grant·A
Ping Wang Rawson KEY
Chief Financial Officer
$0
47.2K sh
Own New
-
Grant·A
Ping Wang Rawson KEY
Chief Financial Officer
$0
29.2K sh
Own +21%
-
Grant·A
Director
$0
39.9K sh
Own New
-
Grant·A
Director
$0
67.5K sh
Own New
-
Exercise·M
Director
$0
21.6K sh
Own New
-
Exercise·M
Director
—
21.6K sh
Own +42%
-
Grant·A
Director
$0
39.9K sh
Own New
-
Grant·A
Director
$0
67.5K sh
Own New
-
Exercise·M
Director
$0
21.6K sh
Own New
-
Exercise·M
Director
—
21.6K sh
Own +36%
-
Grant·A
Director
$0
39.9K sh
Own New
-
Grant·A
Director
$0
50.0K sh
Own New
-
Exercise·M
Director
$0
21.6K sh
Own New
-
Exercise·M
Director
—
21.6K sh
Own +12%
-
Grant·A
President & COO
$0
67.2K sh
Own New
-
Grant·A
President & COO
$0
36.4K sh
Own +23%
-
Grant·A
Mark A Emalfarb KEY
CEO
$0
126.0K sh
Own New
-
Grant·A
Mark A Emalfarb KEY
CEO
$0
102.6K sh
Own +2%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jan 2, 2026 | Ronen Tchelet | Grant A | 47.2K | $0 |
| Jan 2, 2026 | Ronen Tchelet | Grant A | 18.1K | $0 |
| Jan 2, 2026 | Ping Wang Rawson KEY | Grant A | 47.2K | $0 |
| Jan 2, 2026 | Ping Wang Rawson KEY | Grant A | 29.2K | $0 |
| Jan 2, 2026 | Patrick K. Lucy | Grant A | 39.9K | $0 |
| Jan 2, 2026 | Patrick K. Lucy | Grant A | 67.5K | $0 |
| Jan 2, 2026 | Patrick K. Lucy | Exercise M | 21.6K | $0 |
| Jan 2, 2026 | Patrick K. Lucy | Exercise M | 21.6K | — |
| Jan 2, 2026 | Jack Kaye | Grant A | 39.9K | $0 |
| Jan 2, 2026 | Jack Kaye | Grant A | 67.5K | $0 |
| Jan 2, 2026 | Jack Kaye | Exercise M | 21.6K | $0 |
| Jan 2, 2026 | Jack Kaye | Exercise M | 21.6K | — |
| Jan 2, 2026 | Seth Herbst | Grant A | 39.9K | $0 |
| Jan 2, 2026 | Seth Herbst | Grant A | 50.0K | $0 |
| Jan 2, 2026 | Seth Herbst | Exercise M | 21.6K | $0 |
| Jan 2, 2026 | Seth Herbst | Exercise M | 21.6K | — |
| Jan 2, 2026 | Joseph P Hazelton KEY | Grant A | 67.2K | $0 |
| Jan 2, 2026 | Joseph P Hazelton KEY | Grant A | 36.4K | $0 |
| Jan 2, 2026 | Mark A Emalfarb KEY | Grant A | 126.0K | $0 |
| Jan 2, 2026 | Mark A Emalfarb KEY | Grant A | 102.6K | $0 |
About DYAI insider trading
This page tracks insider transactions for DYADIC INTERNATIONAL INC (DYAI) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.