Dyadic International Inc
DYAI- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001213809
In the last 90 days, Dyadic International Inc insiders filed 0 open-market purchases and 2 sales; 39 institutions reported holding it in 13F filings for Q2 2026, worth $4.14M in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Dyadic International Inc insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 2 filings
- 1 insider, $468.7K in total
- Insiders trading
- 1
- Net value
- −$468.7K
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Dyadic International Inc, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Francisco Trust under agreement dated February 28, 1996 | 10% Owner | 3,280,272 | Jul 24, 2026 | 2 |
| Emalfarb Mark A | CEO | 4,832,667 | Jan 6, 2026 | 2 |
| Kaye Jack | Director | 81,201 | Jan 6, 2026 | 1 |
| Lucy Patrick K. | Director | 72,311 | Jan 6, 2026 | 1 |
| Tchelet Ronen | VP of Research and Bus. Dvlpmt | 50,897 | Jan 6, 2026 | 1 |
| Herbst Seth | Director | 202,311 | Jan 6, 2026 | 1 |
| Rawson Ping Wang | Chief Financial Officer | 170,151 | Jan 6, 2026 | 1 |
| Hazelton Joseph P | President & COO | 191,758 | Jan 6, 2026 | 1 |
| Tarnok Michael P. | Director | 281,033 | Jun 24, 2025 | 0 |
| Bose Arindam | Director | 61,535 | Jun 24, 2025 | 0 |
| Buckland Barry | Director | 38,967 | Jun 13, 2024 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jul 24, 2026 (view filing)5:11 PM ET | Jul 22-24 | 2 days | Francisco Trust under agreement dated February 28, 199610% Owner | SSale | −95.4K | $1.31 | −$125.0K | −2.8%3.28M after | 3 lots |
| Jul 6, 2026 (view filing)6:30 AM ET | Jun 6, 2024-Jan 7, 2025 | 760 daysLate | Francisco Trust under agreement dated February 28, 199610% Owner | SSale | −172.9K | $1.99 | −$343.8K | −4.9%3.38M after | 7 lots |
| Jul 6, 2026 (view filing)6:30 AM ET | Mar 8, 2024 | 850 daysLate | Francisco Trust under agreement dated February 28, 199610% Owner | PPurchase | +558.7K | $0.00 | $0 | –558.7K after | Derivative |
| Sep 17, 2025 (view filing) | Sep 15 | 2 days | Emalfarb Mark ACEO | PPurchase | +714.3K | – | – | – | DerivativePrice outlier |
| Aug 5, 2025 (view filing) | Aug 1 | 4 days | Hazelton Joseph PPresident and COO | PPurchase | +26.0K | $0.95 | +$24.7K | +20.1%155.3K after | |
| Sep 20, 2022 (view filing) | Jul 27-Aug 11, 2021 | 420 days | Francisco Trust under agreement dated February 28, 199610% Owner | SSale | −175.0K | $5.00 | −$875.0K | −4.7%3.55M after | Amended2 lots |
| Jul 11, 2022 (view filing) | Jul 7-8 | 4 days | Tchelet RonenVP of Research and Bus. Dvlpmt | SSale | −8.94K | $3.49 | −$31.2K | −100.0%0 after | 2 lots |
| Dec 23, 2021 (view filing) | Dec 21-23 | 2 days | Emalfarb Mark APresident and CEO | SSale | −90.9K | $4.17 | −$379.5K | −2.1%4.24M after | 3 lots |