DYAI's three largest insider shareholders as of August 04, 2026 are Mark A Emalfarb (President And Ceo, 12.95Mn shares), Mark A Emalfarb (Ceo, 4.83Mn shares), Trust Under Agreement Dated February 28, 1996 Francisco (TenPercentOwner, 3.55Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Mark A Emalfarb | President And Ceo | 0 | 12,946,461 | 23 Dec, 2021 |
| Trust Under Agreement Dated February 28, 1996 Francisco | - | 3,548,528 | 0 | 16 Aug, 2021 |
| Jack Kaye | - | 81,201 | 0 | 06 Jan, 2026 |
| Michael P. Tarnok | - | 281,033 | 0 | 24 Jun, 2025 |
| Patrick K. Lucy | - | 72,311 | 0 | 06 Jan, 2026 |
| Barry Buckland | - | 38,967 | 0 | 13 Jun, 2024 |
| Arindam Bose | - | 61,535 | 0 | 24 Jun, 2025 |
| Ronen Tchelet | Vp Of Research And Bus. Dvlpmt | 50,897 | 0 | 06 Jan, 2026 |
| Seth Herbst | - | 202,311 | 0 | 06 Jan, 2026 |
| Ping Wang Rawson | Chief Financial Officer | 170,151 | 0 | 06 Jan, 2026 |
| Joseph P Hazelton | President Coo | 191,758 | 0 | 06 Jan, 2026 |
* 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 | Patrick K. Lucy | Common Stock | A | 21,552 | - | 72,311 | D | M |
| 02 Jan, 2026 | Seth Herbst | Common Stock | A | 21,552 | - | 202,311 | D | M |
| 02 Jan, 2026 | Seth Herbst | Common Stock | A | 21,552 | - | 202,311 | D | M |
| 02 Jan, 2026 | Joseph P Hazelton | Common Stock | A | 36,418 | $0.00 | 191,758 | D | A |
| 02 Jan, 2026 | Ping Wang Rawson | Common Stock | A | 29,158 | $0.00 | 170,151 | D | A |
| 02 Jan, 2026 | Ronen Tchelet | Common Stock | A | 18,064 | $0.00 | 50,897 | D | A |
| 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 | Ronen Tchelet | Common Stock | A | 18,064 | $0.00 | 50,897 | D | A |
| 02 Jan, 2026 | Joseph P Hazelton | Common Stock | A | 36,418 | $0.00 | 191,758 | D | A |
| 02 Jan, 2026 | Seth Herbst | Common Stock | A | 21,552 | - | 202,311 | D | M |
| 02 Jan, 2026 | Ronen Tchelet | Common Stock | A | 18,064 | $0.00 | 50,897 | D | A |
| 02 Jan, 2026 | Ping Wang Rawson | Common Stock | A | 29,158 | $0.00 | 170,151 | D | A |
| 02 Jan, 2026 | Mark A Emalfarb | Common Stock | A | 102,609 | $0.00 | 4,832,667 | D | A |
| 02 Jan, 2026 | Joseph P Hazelton | Common Stock | A | 36,418 | $0.00 | 191,758 | D | A |
| 02 Jan, 2026 | Ping Wang Rawson | Common Stock | A | 29,158 | $0.00 | 170,151 | D | A |
| 02 Jan, 2026 | Mark A Emalfarb | Common Stock | A | 102,609 | $0.00 | 4,832,667 | D | A |
| 02 Jan, 2026 | Ronen Tchelet | Stock Option | A | 47,250 | $0.00 | 47,250 | D | A |
| 02 Jan, 2026 | Mark A Emalfarb | Stock Option | A | 126,000 | $0.00 | 126,000 | D | A |
| 02 Jan, 2026 | Ping Wang Rawson | Stock Option | A | 47,250 | $0.00 | 47,250 | D | A |