Form 4 holding
CEO, Director, 10%+ Owner
DYADIC INTERNATIONAL INC
- Security class
- Common Stock
- Shares / value
- 4,832,667
- Estimated value
- $4,784,340
- Report date
- 02 Jan 2026
- Price
- $0.9900
- Ownership
- Direct
Mark A. Emalfarb - CEO, Director, 10%+ Owner at DYADIC INTERNATIONAL INC
Issuer-level insider activity
- Role
- CEO, Director, 10%+ Owner
- Issuer ticker
- DYAI on Nasdaq
- Entity type
- Individual
- Source filing history
- Open source filing history
Identity
Names, identifiers, and filing context for this profile.
1 identity field
Source evidence
Original filing metadata and source links for verification.
1 source field
No buys or sells have been reported by Mark A. Emalfarb since 28 Sep 2025
Reported holdings for Mark A. Emalfarb in DYADIC INTERNATIONAL INC
Form 4 holding
CEO, Director, 10%+ Owner
DYADIC INTERNATIONAL INC
- Security class
- Stock Option
- Shares / value
- 126,000
- Estimated value
- Report date
- 02 Jan 2026
- Price
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
Form 4 holding
CEO, Director, 10%+ Owner
DYADIC INTERNATIONAL INC
- Security class
- Senior Secured Convertible Promissory Note due March 8, 2027
- Shares / value
- 0
- Estimated value
- Report date
- 23 Dec 2025
- Price
- Ownership
- Through Mark A Emalfarb Trust U/A/ DTD 10/1/1987
- Underlying class
- Common Stock
- Underlying amount
Form 4 holding
CEO, Director, 10%+ Owner
DYADIC INTERNATIONAL INC
- Security class
- Senior Secured Convertible Promissory Note due Dec 31, 2027
- Shares / value
- $1,000,000
- Estimated value
- Report date
- 23 Dec 2025
- Price
- Ownership
- Through Mark A Emalfarb Trust U/A/ DTD 10/1/1987
- Underlying class
- Common Stock
- Underlying amount
Transaction history for Mark A. Emalfarb in DYADIC INTERNATIONAL INC
| Sym | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares after | Date | Ownership |
|---|
* marks a reported price that did not pass the local price check.