MarketPeel
Insider Trading Intelligence
ME

Mark A. Emalfarb

DYAI
CEO · DYADIC INTERNATIONAL INC · CIK 0001328287
FILING MIX · LIFETIME55%/45%
BUYS
16
SELLS
13
TOTAL VALUE
$2.91M
COMPANIES
1
ACTIVE SINCE
Jan 2020
HOLDINGS NOW
4,832,667
AVG SELL PX
$3.89
TRADE KIND
SHOWING 29 / 29
Trades · vs SPY
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Performance · forward returns vs SPY
10 backtested trades · 8 horizons · 2 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Mark A. Emalfarb, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d10+60.00%-1.22%+1.04%-2.26%-2.48%
14d10+70.00%-1.04%+0.39%-1.43%-4.65%
30d10+100.00%-5.25%+0.35%-5.59%-6.20%
60d10+90.00%-6.11%+0.91%-7.02%-8.29%
90d10+30.00%+29.94%+3.63%+26.31%+46.78%
180d10+70.00%-14.04%-0.41%-13.63%-14.34%
1y10(1 pending)+100.00%-43.39%-6.28%-37.11%-32.87%
2y10(1 pending)+100.00%-47.77%+4.65%-52.42%-48.23%
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
DYAI · 4,832,667 shares · as of Jan 2, 2026
01,208,1672,416,3343,624,5004,832,667202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 16 buys / 13 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
DYAI
DYADIC INTERNATIONAL INC
PURCHASEGRANT
Stock grant
126,000126,000Jan 2, 2026Jan 6, 2026View →
DYAI
DYADIC INTERNATIONAL INC
PURCHASEGRANT
Stock grant
102,6094,832,667Jan 2, 2026Jan 6, 2026View →
DYAI
DYADIC INTERNATIONAL INC
SALE
CEO
0Dec 23, 2025Dec 29, 2025View →
DYAI
DYADIC INTERNATIONAL INC
PURCHASEGRANT
Stock grant
Dec 23, 2025Dec 29, 2025View →
DYAI
DYADIC INTERNATIONAL INC
PURCHASE
CEO
$1,000,000.00Sep 15, 2025Sep 17, 2025View →
DYAI
DYADIC INTERNATIONAL INC
PURCHASEGRANT
Stock grant
172,000172,000Jan 2, 2025Jan 6, 2025View →
DYAI
DYADIC INTERNATIONAL INC
PURCHASEGRANT
Stock grant
73,1114,730,058Jan 2, 2025Jan 6, 2025View →
DYAI
DYADIC INTERNATIONAL INC
PURCHASEGRANT
Stock grant
124,4544,656,947Mar 13, 2024Apr 15, 2024View →
DYAI
DYADIC INTERNATIONAL INC
PURCHASEGRANT
Stock grant
200,000200,000Jan 2, 2024Jan 4, 2024View →
DYAI
DYADIC INTERNATIONAL INC
PURCHASEGRANT
Stock grant
138,478$1.38$191.1K4,532,493Jan 3, 2023Jan 5, 2023View →
DYAI
DYADIC INTERNATIONAL INC
PURCHASEGRANT
Stock grant
200,000200,000Jan 3, 2023Jan 5, 2023View →
DYAI
DYADIC INTERNATIONAL INC
PURCHASEGRANT
Stock grant
200,000200,000Jan 3, 2022Jan 5, 2022View →
DYAI
DYADIC INTERNATIONAL INC
SALE
President and CEO
28,767$4.10$117.9K4,244,015Dec 23, 2021Dec 23, 2021View →
DYAI
DYADIC INTERNATIONAL INC
PURCHASE
President and CEO
150,000$1.63$244.5K4,394,015Dec 23, 2021Dec 23, 2021View →
DYAI
DYADIC INTERNATIONAL INC
SALE
President and CEO
150,0000Dec 23, 2021Dec 23, 2021View →
DYAI
DYADIC INTERNATIONAL INC
SALE
President and CEO
35,649$4.12$146.9K4,272,782Dec 22, 2021Dec 23, 2021View →
DYAI
DYADIC INTERNATIONAL INC
SALE
President and CEO
26,486$4.33$114.7K4,308,431Dec 21, 2021Dec 23, 2021View →
DYAI
DYADIC INTERNATIONAL INC
PURCHASE
President and CEO
100,000$1.67$167.0K4,334,917Jun 9, 2021Jun 9, 2021View →
DYAI
DYADIC INTERNATIONAL INC
SALE
President and CEO
100,0000Jun 9, 2021Jun 9, 2021View →
DYAI
DYADIC INTERNATIONAL INC
SALE
President and CEO
23,000$3.72$85.6K4,234,917Jun 9, 2021Jun 9, 2021View →
DYAI
DYADIC INTERNATIONAL INC
SALE
President and CEO
30,000$3.82$114.6K4,257,917Jun 8, 2021Jun 9, 2021View →
DYAI
DYADIC INTERNATIONAL INC
SALE
President and CEO
44,000$3.95$173.8K4,287,917Jun 7, 2021Jun 9, 2021View →
DYAI
DYADIC INTERNATIONAL INC
SALE
President and CEO
400,0000Jun 4, 2021Jun 4, 2021View →
DYAI
DYADIC INTERNATIONAL INC
SALE
President and CEO
132,000$3.85$508.2K3,931,917Jun 4, 2021Jun 4, 2021View →
DYAI
DYADIC INTERNATIONAL INC
PURCHASE
President and CEO
400,000$1.67$668.0K4,331,917Jun 4, 2021Jun 4, 2021View →
DYAI
DYADIC INTERNATIONAL INC
SALE
President and CEO
26,721$3.61$96.5K4,063,917Jun 3, 2021Jun 4, 2021View →
DYAI
DYADIC INTERNATIONAL INC
SALE
President and CEO
76,349$3.74$285.5K4,090,638Jun 2, 2021Jun 4, 2021View →
DYAI
DYADIC INTERNATIONAL INC
PURCHASEGRANT
Stock grant
200,000200,000Jan 4, 2021Jan 6, 2021View →
DYAI
DYADIC INTERNATIONAL INC
PURCHASEGRANT
Stock grant
300,000300,000Jan 2, 2020Jan 3, 2020View →
Other insiders · DYAI
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About this filer
CIK 0001328287
ROLE
CEO
PRIMARY
DYAI
COMPANIES
1
ACTIVE SINCE
Jan 2020
MARKETPEEL · /INSIDER/0001328287DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

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