Data spanning the past 90 days through February 19, 2026 reveals that Dyadic International's three principal insider shareholders consist of Ceo Mark A Emalfarb (9.23Mn shares), TenPercentOwner Trust Under Agreement Dated February 28, 1996 Francisco (3.55Mn shares), Director Michael P. Tarnok (281.03K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Mark A Emalfarb | Ceo | 9,226,682 | 06 Jan, 2026 |
| Trust Under Agreement Dated February 28, 1996 Francisco | 3,548,528 | 16 Aug, 2021 | |
| Michael P. Tarnok | 281,033 | 24 Jun, 2025 | |
| Seth Herbst | 202,311 | 06 Jan, 2026 | |
| Joseph P Hazelton | President & Coo | 191,758 | 06 Jan, 2026 |
| Ping Wang Rawson | Chief Financial Officer | 179,801 | 06 Jan, 2026 |
| Jack Kaye | 81,201 | 06 Jan, 2026 | |
| Patrick K. Lucy | 72,311 | 06 Jan, 2026 | |
| Arindam Bose | 61,535 | 24 Jun, 2025 | |
| Ronen Tchelet | Vp Of Research And Bus. Dvlpmt | 50,897 | 06 Jan, 2026 |
| Barry Buckland | 38,967 | 13 Jun, 2024 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 02 Jan, 2026 | Mark A Emalfarb | Common Stock | A | 102,609 | $0.00 | 4,832,667 | D | A |
| 02 Jan, 2026 | Jack Kaye | Common Stock | A | 21,552 | - | 81,201 | D | M |
| 02 Jan, 2026 | Patrick K. Lucy | Common Stock | A | 21,552 | - | 72,311 | D | M |
| 02 Jan, 2026 | Ronen Tchelet | Common Stock | A | 18,064 | $0.00 | 50,897 | D | A |
| 02 Jan, 2026 | Seth Herbst | Common Stock | A | 21,552 | - | 202,311 | D | M |
| 02 Jan, 2026 | Ping Wang Rawson | Common Stock | A | 29,158 | $0.00 | 170,151 | D | A |
| 02 Jan, 2026 | Joseph P Hazelton | Common Stock | A | 36,418 | $0.00 | 191,758 | D | A |
| 01 Aug, 2025 | Joseph P Hazelton | Common Stock | A | 26,000 | $0.95 | 155,340 | D | P |
| 20 Jun, 2025 | Michael P. Tarnok | Common Stock | A | 10,776 | - | 281,033 | D | M |
| 20 Jun, 2025 | Arindam Bose | Common Stock | A | 10,776 | - | 61,535 | D | M |
| 20 Jun, 2025 | Arindam Bose | - | - | 61,535 | D | |||
| 05 Mar, 2025 | Jack Kaye | Common Stock | D | 27,517 | $1.45 | 59,649 | D | F |
| 05 Mar, 2025 | Jack Kaye | - | - | 87,166 | D | |||
| 05 Mar, 2025 | Jack Kaye | Common Stock | A | 7,500 | $1.33 | 64,666 | D | M |
| 05 Mar, 2025 | Jack Kaye | Common Stock | A | 22,500 | $1.33 | 87,166 | D | M |
| 05 Mar, 2025 | Jack Kaye | - | - | 59,649 | D | |||
| 06 Jan, 2025 | Seth Herbst | Common Stock | A | 18,750 | $0.97 | 174,509 | D | M |
| 06 Jan, 2025 | Seth Herbst | Common Stock | A | 6,250 | $0.97 | 180,759 | D | M |
| 06 Jan, 2025 | Seth Herbst | - | - | 180,759 | D | |||
| 02 Jan, 2025 | Mark A Emalfarb | Common Stock | A | 73,111 | $0.00 | 4,730,058 | D | A |