Dyadic International, Inc.
Dyadic International, Inc. (DYAI) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · DYAI · as of Jun 9, 2026
Activity summary
Buy transactions
2
P-Purchase only
Sell transactions
0
12 Months
Buy/Sell ratio
∞
Buy/Sell (by trades)
Overall sentiment
Dyadic International, Inc. insiders have been net buyers of shares over the past 12 Months, which may signal confidence in the company's outlook.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 9, 2026
DYAI insider buying and selling by quarter
DYAI insider selling · DYAI insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 9, 2026
Active insiders
Most active in past 12 months · DYAI ceo insider trading
Showing all insiders · Click a card to filter the transactions table below
▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API
Recent insider transactions
DYAI executive sell shares · DYAI board member insider trading · DYAI insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| Jan 2, 2026 | TCHELET RONEN VP of Research and Bus. Dvlpmt | Award | 18,064 | — | Form 4 |
| Jan 2, 2026 | Rawson Ping Wang CFO | Award | 29,158 | — | Form 4 |
| Jan 2, 2026 | Lucy Patrick K. Director | Option | 21,552 | — | Form 4 |
| Jan 2, 2026 | Kaye Jack Director | Option | 21,552 | — | Form 4 |
| Jan 2, 2026 | HERBST SETH Director | Option | 21,552 | — | Form 4 |
| Jan 2, 2026 | Hazelton Joseph P President & COO | Award | 36,418 | — | Form 4 |
| Jan 2, 2026 | EMALFARB MARK A CEO · Director | Award | 102,609 | — | Form 4 |
| Aug 1, 2025 | Hazelton Joseph P President and COO | Purchase | 26,000 | $25K | Form 4 |
| Jun 20, 2025 | Tarnok Michael P. Director | Option | 10,776 | — | Form 4 |
| Jun 20, 2025 | Bose Arindam Director | Option | 10,776 | — | Form 4 |
| Mar 5, 2025 | Kaye Jack Director | Option | 22,500 | $30K | Form 4 |
| Mar 5, 2025 | Kaye Jack Director | Option | 7,500 | $10K | Form 4 |
| Mar 5, 2025 | Kaye Jack Director | Other | 27,517 | $40K | Form 4 |
| Jan 6, 2025 | HERBST SETH Director | Option | 6,250 | $6K | Form 4 |
| Jan 6, 2025 | HERBST SETH Director | Option | 18,750 | $18K | Form 4 |
| Jan 2, 2025 | Kaye Jack Director | Option | 23,585 | — | Form 4 |
| Jan 2, 2025 | Tarnok Michael P. Director | Option | 23,585 | — | Form 4 |
| Jan 2, 2025 | HERBST SETH Director | Option | 23,585 | — | Form 4 |
| Jan 2, 2025 | Lucy Patrick K. Director | Option | 23,585 | — | Form 4 |
| Jan 2, 2025 | Rawson Ping Wang CFO | Award | 20,776 | — | Form 4 |
| Jan 2, 2025 | Bose Arindam Director | Option | 23,585 | — | Form 4 |
| Jan 2, 2025 | Hazelton Joseph P COO | Award | 30,172 | — | Form 4 |
| Jan 2, 2025 | TCHELET RONEN VP of Research and Bus. Dvlpmt | Award | 8,980 | — | Form 4 |
| Jan 2, 2025 | EMALFARB MARK A President and CEO · Director | Award | 73,111 | — | Form 4 |
| Nov 22, 2024 | Tarnok Michael P. Director | Option | 18,750 | $18K | Form 4 |
TCHELET RONEN
VP of Research and Bus. Dvlpmt
Date
Jan 2
Shares
18,064
Price
—
Value
—
Hazelton Joseph P
President and COO
Date
Aug 1
Shares
26,000
Price
$0.95
Value
$25K
TCHELET RONEN
VP of Research and Bus. Dvlpmt
Date
Jan 2
Shares
8,980
Price
—
Value
—
EMALFARB MARK A
President and CEO · Director
Date
Jan 2
Shares
73,111
Price
—
Value
—
⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About DYAI insider trading
DYAI insider trades
Dyadic International, Inc. (DYAI) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including Hazelton Joseph P (President & COO), TCHELET RONEN (VP of Research and Bus. Dvlpmt), Rawson Ping Wang (CFO). Over the past 12 months, 5 insiders have filed transactions with the SEC. DYAI insiders have been primarily buying, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For Dyadic International, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
DYAI insider trading · 5 questionsThe insiders of Dyadic International, Inc. (DYAI) include executives and directors such as Hazelton Joseph P (President & COO), TCHELET RONEN (VP of Research and Bus. Dvlpmt), Rawson Ping Wang (CFO), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 9, 2026