Dyadic International Inc.
Last updated September 27, 2026
Organization details
- Legal name
- Dyadic International Inc.
- Ownership
- Public
- Status
- Active
- Headquarters country
- United States
- Ticker symbol
- DYAI
- Primary stock exchange
- Nasdaq
Identifiers
- SEC CIK
- 0001213809
Board of directors
-
Arindam Bose · DirectorSince 2023
-
Barry Buckland · DirectorSince 2023
-
Jack Kaye · DirectorSince 2023
-
Mark A. Emalfarb · Director · CEOSince 2023
-
Michael P. Tarnok · DirectorSince 2023
-
Patrick K. Lucy · DirectorSince 2023
-
Seth Herbst · DirectorSince 2023
Chief executives
Mark A. Emalfarb
· President and CEO
Dates unknown
Board connections
1 of this board's directors also sit on 1 other board.
- via Jack Kaye
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
- Bought, last 12 months
- $0
- 0 purchases by 0 insiders
- Sold, last 12 months
- $124,958
- 3 sales by 1 insider
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Jul 24, 2026 | Francisco Trust under agreement dated February 28, 1996 10% owner | Open-market sale | −2,616 | $1.21 | $3,173 |
| Jul 23, 2026 | Francisco Trust under agreement dated February 28, 1996 10% owner | Open-market sale | −54,760 | $1.30 | $71,303 |
| Jul 22, 2026 | Francisco Trust under agreement dated February 28, 1996 10% owner | Open-market sale | −38,016 | $1.33 | $50,481 |
| Jan 2, 2026 | TCHELET RONEN Officer (VP of Research and Bus. Dvlpmt) | Grant or award | +18,064 | — | — |
| Jan 2, 2026 | Rawson Ping Wang Officer (Chief Financial Officer) | Grant or award | +29,158 | — | — |
| Jan 2, 2026 | Patrick K. Lucy Director | Option exercise | +21,552 | — | — |
| Jan 2, 2026 | Jack Kaye Director | Option exercise | +21,552 | — | — |
| Jan 2, 2026 | Seth Herbst Director | Option exercise | +21,552 | — | — |
| Jan 2, 2026 | Hazelton Joseph P Officer (President & COO) | Grant or award | +36,418 | — | — |
| Jan 2, 2026 | Mark A. Emalfarb Director, Officer (CEO), 10% owner | Grant or award | +102,609 | — | — |
| Aug 1, 2025 | Hazelton Joseph P Officer (President and COO) | Open-market purchase | +26,000 | $0.95 | $24,700 |
| Jun 20, 2025 | Michael P. Tarnok Director | Option exercise | +10,776 | — | — |
| Jun 20, 2025 | Arindam Bose Director | Option exercise | +10,776 | — | — |
| Mar 5, 2025 | Jack Kaye Director | Option exercise | +7,500 | $1.33 | $9,975 |
| Mar 5, 2025 | Jack Kaye Director | Option exercise | +22,500 | $1.33 | $29,925 |
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