Dyadic International DYAI Insider Ownership

NASDAQ DYAI
$0.51 0.00 (-0.31%)
As of: Sep 10, 2026 · 1:27 PM EDT

Insider Holdings by Owner

9.26Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
0.178%
0% pp QoQ
Shares Held by Insiders
61.54K
filed for Sep 2026
0.00% QoQ
Shares Outstanding
34.51Mn
34,507,530 shares
Direct Holdings
61.54K
Indirect: 0
Net Shares Traded (QoQ)
0
no net change in Sep 2026
Insiders Holding Shares
11
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest
Average ownership
Peak ownership

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter
Net over range
Buying quarters

Insider Ownership Summary

Quarter ending 30 Sep, 2026

Dyadic International's top three insider shareholders as of September 09, 2026 are Mark A Emalfarb (President And Ceo, 12.95Mn shares), Mark A Emalfarb (President And Ceo, 12.95Mn shares), Mark A Emalfarb (Ceo, 4.83Mn shares).

Form 4 Holdings

Insiders Holding DYAI

Insiders 11
Shares held 9.26Mn
Of outstanding 26.84%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Mark A Emalfarb Ceo 4,832,667 0 4,832,667 52.2% 06 Jan, 2026
2 Trust Under Agreement Dated February 28, 1996 Francisco TenPercentOwner 3,280,272 0 3,280,272 35.4% 24 Jul, 2026
3 Michael P. Tarnok Director 281,033 0 281,033 3.0% 24 Jun, 2025
4 Seth Herbst Director 202,311 0 202,311 2.2% 06 Jan, 2026
5 Joseph P Hazelton President Coo 191,758 0 191,758 2.1% 06 Jan, 2026
6 Ping Wang Rawson Chief Financial Officer 170,151 0 170,151 1.8% 06 Jan, 2026
7 Jack Kaye Director 81,201 0 81,201 0.9% 06 Jan, 2026
8 Patrick K. Lucy Director 72,311 0 72,311 0.8% 06 Jan, 2026
9 Arindam Bose Director 61,535 0 61,535 0.7% 24 Jun, 2025
10 Ronen Tchelet Vp Of Research And Bus. Dvlpmt 50,897 0 50,897 0.5% 06 Jan, 2026
11 Barry Buckland Director 38,967 0 38,967 0.4% 13 Jun, 2024

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

951 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
22 Jul, 2026 Trust Under Agreement Dated February 28, 1996 Francisco TenPercentOwner Disposed S 38,016 $1.33 $50.48K 3,337,648 Direct
23 Jul, 2026 Trust Under Agreement Dated February 28, 1996 Francisco TenPercentOwner Disposed S 54,760 $1.30 $71.30K 3,282,888 Direct
24 Jul, 2026 Trust Under Agreement Dated February 28, 1996 Francisco TenPercentOwner Disposed S 2,616 $1.21 $3.17K 3,280,272 Direct
02 Jan, 2026 Mark A Emalfarb Ceo Acquired A 102,609 $0.00 $0 4,832,667 Direct
02 Jan, 2026 Seth Herbst Director Acquired M 21,552 202,311 Direct
02 Jan, 2026 Ping Wang Rawson Chief Financial Officer Acquired A 29,158 $0.00 $0 170,151 Direct
02 Jan, 2026 Patrick K. Lucy Director Acquired M 21,552 72,311 Direct
02 Jan, 2026 Seth Herbst Director Acquired M 21,552 202,311 Direct
02 Jan, 2026 Joseph P Hazelton President Coo Acquired A 36,418 $0.00 $0 191,758 Direct
02 Jan, 2026 Joseph P Hazelton President Coo Acquired A 36,418 $0.00 $0 191,758 Direct
02 Jan, 2026 Mark A Emalfarb Ceo Acquired A 102,609 $0.00 $0 4,832,667 Direct
02 Jan, 2026 Ronen Tchelet Vp Of Research And Bus. Dvlpmt Acquired A 18,064 $0.00 $0 50,897 Direct
02 Jan, 2026 Ronen Tchelet Vp Of Research And Bus. Dvlpmt Acquired A 18,064 $0.00 $0 50,897 Direct
02 Jan, 2026 Ping Wang Rawson Chief Financial Officer Acquired A 29,158 $0.00 $0 170,151 Direct
02 Jan, 2026 Joseph P Hazelton President Coo Acquired A 36,418 $0.00 $0 191,758 Direct
02 Jan, 2026 Ping Wang Rawson Chief Financial Officer Acquired A 29,158 $0.00 $0 170,151 Direct
02 Jan, 2026 Mark A Emalfarb Ceo Acquired A 102,609 $0.00 $0 4,832,667 Direct
02 Jan, 2026 Seth Herbst Director Acquired M 21,552 202,311 Direct
02 Jan, 2026 Ronen Tchelet Vp Of Research And Bus. Dvlpmt Acquired A 18,064 $0.00 $0 50,897 Direct
02 Jan, 2026 Patrick K. Lucy Director Acquired M 21,552 72,311 Direct