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United States Biotechnology & Medical Research

Dyadic International Inc (DYAI)

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Ticker: DYAI Exchange: NAS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Hazelton Joseph P
President and COO
1 purchase — total 24,700 USD
Buy 1 Aug 2025
Value US$3,479,975.42 | Price 59.57 | Shares 31,954
Proposed sale 18 Jul 2025
Value US$4,324,139.07 | Price 197.34 | Shares 48,487
Proposed sale 20 Dec 2024
Value US$563,676.17 | Price 1.91 | Shares 295,893
Proposed sale 6 Jun 2024
Value US$657,900.00 | Price 2.25 | Shares 292,400
Planned sale 8 Jul 2022
Value US$3,713.49 | Price 3.41 | Shares 1,089
Planned sale 7 Jul 2022
Value US$27,489.00 | Price 3.50 | Shares 7,854
Sale 23 Dec 2021
Value US$117,944.70 | Price 4.10 | Shares 28,767
Sale 22 Dec 2021
Value US$146,873.88 | Price 4.12 | Shares 35,649
Sale 21 Dec 2021
Value US$114,684.38 | Price 4.33 | Shares 26,486
Sale 9 Jun 2021
Value US$85,560.00 | Price 3.72 | Shares 23,000
Sale 8 Jun 2021
Value US$114,600.00 | Price 3.82 | Shares 30,000
Sale 7 Jun 2021
Value US$173,800.00 | Price 3.95 | Shares 44,000
Buy 3 Jun 2021
Value US$11,952.00 | Price 3.60 | Shares 3,320
Buy 3 Jun 2021
Value US$4,860.00 | Price 3.60 | Shares 1,350
Buy 2 Jun 2021
Value US$676.86 | Price 3.89 | Shares 174
Buy 2 Jun 2021
Value US$23,577.48 | Price 3.83 | Shares 6,156
Buy 2 Jun 2021
Value US$59,200.00 | Price 3.70 | Shares 16,000
Planned sale 11 Dec 2019
Value US$26,535.00 | Price 5.80 | Shares 4,575
Planned sale 10 Dec 2019
Value US$31,682.00 | Price 5.84 | Shares 5,425
Sale 3 Dec 2019
Value US$92,700.00 | Price 6.18 | Shares 15,000
Planned sale 11 Nov 2019
Value US$59,900.00 | Price 5.99 | Shares 10,000
Planned sale 11 Oct 2019
Value US$31,725.44 | Price 6.08 | Shares 5,218
Planned sale 10 Oct 2019
Value US$28,883.28 | Price 6.04 | Shares 4,782
Planned sale 10 Sep 2019
Value US$52,700.00 | Price 5.27 | Shares 10,000
Planned sale 13 Aug 2019
Value US$36,225.00 | Price 5.75 | Shares 6,300
Planned sale 12 Aug 2019
Value US$21,164.00 | Price 5.72 | Shares 3,700
Planned sale 10 Jul 2019
Value US$58,700.00 | Price 5.87 | Shares 10,000
Planned sale 18 Jun 2019
Value US$128,800.00 | Price 6.44 | Shares 20,000
Planned sale 17 Jun 2019
Value US$122,200.00 | Price 6.11 | Shares 20,000
Buy 16 Dec 2008
Value US$225.00 | Price 0.15 | Shares 1,500
Buy 15 Dec 2008
Value US$930.00 | Price 0.15 | Shares 6,200
Buy 12 Dec 2008
Value US$8,175.00 | Price 0.15 | Shares 54,500
Buy 11 Dec 2008
Value US$1,545.00 | Price 0.15 | Shares 10,300
Buy 10 Dec 2008
Value US$285.00 | Price 0.15 | Shares 1,900
Buy 9 Dec 2008
Value US$45.00 | Price 0.15 | Shares 300
Buy 8 Dec 2008
Value US$3,855.00 | Price 0.15 | Shares 25,700
Buy 5 Dec 2008
Value US$1,350.00 | Price 0.15 | Shares 9,000
Buy 4 Dec 2008
Value US$1,335.00 | Price 0.15 | Shares 8,900
Buy 3 Dec 2008
Value US$720.00 | Price 0.10 | Shares 7,200
Buy 2 Dec 2008
Value US$1,970.00 | Price 0.10 | Shares 19,700
Buy 17 Nov 2008
Value US$4,588.74 | Price 0.20 | Shares 23,400
Sale 2 Dec 2005
Value US$2,110.00 | Price 2.11 | Shares 1,000
Sale 30 Nov 2005
Value US$10,600.00 | Price 2.12 | Shares 5,000
Sale 30 Nov 2005
Value US$6,300.00 | Price 2.10 | Shares 3,000
Sale 30 Nov 2005
Value US$8,320.00 | Price 2.08 | Shares 4,000
Sale 29 Nov 2005
Value US$2,060.00 | Price 2.06 | Shares 1,000
Sale 23 Nov 2005
Value US$448.00 | Price 2.24 | Shares 200
Sale 21 Nov 2005
Value US$2,280.00 | Price 2.28 | Shares 1,000
Sale 21 Nov 2005
Value US$4,520.00 | Price 2.26 | Shares 2,000
Sale 9 Jun 2005
Value US$12,900.00 | Price 2.58 | Shares 5,000
Sale 9 Jun 2005
Value US$7,800.00 | Price 2.60 | Shares 3,000
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2025-08-05 2025-08-01 B Purchase
Hazelton Joseph P

President and COO

Officer
31,954 +9.4%
59.57
US$3,479,975 		31,954 +9.4% 59.57 US$3,479,975
2025-07-18 2025-07-18 PrS Proposed sale
Francisco Trust under agreement dated February 28, 1996

Greater than 10% holder

Large shareholder
48,487
197.34
US$4,324,139 		48,487 197.34 US$4,324,139
2024-12-20 2024-12-20 PrS Proposed sale
Francisco Trust under agreement dated February 28, 1996

Greater than 10% holder

Large shareholder
77,045
333.65
US$150,482 		77,045 333.65 US$150,482
2024-06-06 2024-06-06 PrS Proposed sale
Francisco Trust under agreement dated February 28, 1996

10% stockholder

Large shareholder
292,400
2.25
US$657,900 		292,400 2.25 US$657,900
2022-07-11 2022-07-08 PlS Planned sale
TCHELET RONEN

VP of Research and Bus. Dvlpmt

Officer
1,089 -100.0%
3.41
US$3,713 		1,089 -100.0% 3.41 US$3,713
2022-07-11 2022-07-07 PlS Planned sale
TCHELET RONEN

VP of Research and Bus. Dvlpmt

Officer
7,854 -100.0%
3.50
US$27,489 		7,854 -100.0% 3.50 US$27,489
2021-12-23 2021-12-23 S Sale
2.8
EMALFARB MARK A

President and CEO

Executive Director Large shareholder
28,767 -0.7%
4.10
US$117,945 		28,767 -0.7% 4.10 US$117,945
2021-12-23 2021-12-22 S Sale
2.8
EMALFARB MARK A

President and CEO

Executive Director Large shareholder
35,649 -0.8%
4.12
US$146,874 		35,649 -0.8% 4.12 US$146,874
2021-12-23 2021-12-21 S Sale
2.8
EMALFARB MARK A

President and CEO

Executive Director Large shareholder
26,486 -0.6%
4.33
US$114,684 		26,486 -0.6% 4.33 US$114,684
2021-06-09 2021-06-09 S Sale
2.8
EMALFARB MARK A

President and CEO

Executive Director Large shareholder
23,000 -0.5%
3.72
US$85,560 		23,000 -0.5% 3.72 US$85,560
2021-06-09 2021-06-08 S Sale
2.8
EMALFARB MARK A

President and CEO

Executive Director Large shareholder
30,000 -0.7%
3.82
US$114,600 		30,000 -0.7% 3.82 US$114,600
2021-06-09 2021-06-07 S Sale
2.8
EMALFARB MARK A

President and CEO

Executive Director Large shareholder
44,000 -1.0%
3.95
US$173,800 		44,000 -1.0% 3.95 US$173,800
2021-06-04 2021-06-03 B Purchase
2.8
Rawson Ping Wang

Chief Financial Officer

Officer
3,320 +52.4%
3.60
US$11,952 		3,320 +52.4% 3.60 US$11,952
2021-06-04 2021-06-03 B Purchase
2.8
Rawson Ping Wang

Chief Financial Officer

Officer
1,350 +3.9%
3.60
US$4,860 		1,350 +3.9% 3.60 US$4,860
2021-06-04 2021-06-02 B Purchase
2.8
Rawson Ping Wang

Chief Financial Officer

Officer
174 +2.8%
3.89
US$677 		174 +2.8% 3.89 US$677
2021-06-04 2021-06-02 B Purchase
2.8
Rawson Ping Wang

Chief Financial Officer

Officer
6,156 +inf%
3.83
US$23,577 		6,156 +inf% 3.83 US$23,577
2021-06-03 2021-06-02 B Purchase
2.8
Rawson Ping Wang

Chief Financial Officer

Officer
16,000 +86.5%
3.70
US$59,200 		16,000 +86.5% 3.70 US$59,200
2019-12-12 2019-12-11 PlS Planned sale TCHELET RONEN

VP of Research and Bus. Dvlpmt

Officer
4,575 -100.0%
5.80
US$26,535 		4,575 -100.0% 5.80 US$26,535
2019-12-12 2019-12-10 PlS Planned sale TCHELET RONEN

VP of Research and Bus. Dvlpmt

Officer
5,425 -54.2%
5.84
US$31,682 		5,425 -54.2% 5.84 US$31,682
2019-12-05 2019-12-03 S Sale Buckland Barry Non-Executive Director
15,000 -100.0%
6.18
US$92,700 		15,000 -100.0% 6.18 US$92,700
2019-11-12 2019-11-11 PlS Planned sale TCHELET RONEN

VP of Research and Bus. Dvlpmt

Officer
10,000 -100.0%
5.99
US$59,900 		10,000 -100.0% 5.99 US$59,900
2019-10-11 2019-10-11 PlS Planned sale
TCHELET RONEN

VP of Research and Bus. Dvlpmt
5,218 -100.0%
6.08
US$31,725 		5,218 -100.0% 6.08 US$31,725
2019-10-11 2019-10-10 PlS Planned sale
TCHELET RONEN

VP of Research and Bus. Dvlpmt
4,782 -100.0%
6.04
US$28,883 		4,782 -100.0% 6.04 US$28,883
2019-09-12 2019-09-10 PlS Planned sale
TCHELET RONEN

VP of Research and Bus. Dvlpmt
10,000 -100.0%
5.27
US$52,700 		10,000 -100.0% 5.27 US$52,700
2019-08-14 2019-08-13 PlS Planned sale TCHELET RONEN

VP of Research and Bus. Dvlpmt

Officer
6,300 -100.0%
5.75
US$36,225 		6,300 -100.0% 5.75 US$36,225
2019-08-14 2019-08-12 PlS Planned sale TCHELET RONEN

VP of Research and Bus. Dvlpmt

Officer
3,700 -100.0%
5.72
US$21,164 		3,700 -100.0% 5.72 US$21,164
2019-07-11 2019-07-10 PlS Planned sale
TCHELET RONEN

VP of Research and Bus. Dvlpmt
10,000 -100.0%
5.87
US$58,700 		10,000 -100.0% 5.87 US$58,700
2019-06-20 2019-06-18 PlS Planned sale
TCHELET RONEN

VP of Research and Bus. Dvlpmt
20,000 -100.0%
6.44
US$128,800 		20,000 -100.0% 6.44 US$128,800
2019-06-19 2019-06-17 PlS Planned sale
TCHELET RONEN

VP of Research and Bus. Dvlpmt
20,000 -100.0%
6.11
US$122,200 		20,000 -100.0% 6.11 US$122,200
2008-12-17 2008-12-16 B Purchase KITT BARRY M Large shareholder
1,500 +0.1%
0.15
US$225 		1,500 +0.1% 0.15 US$225
2008-12-17 2008-12-15 B Purchase KITT BARRY M Large shareholder
6,200 +0.3%
0.15
US$930 		6,200 +0.3% 0.15 US$930
2008-12-12 2008-12-12 B Purchase KITT BARRY M Large shareholder
54,500 +2.9%
0.15
US$8,175 		54,500 +2.9% 0.15 US$8,175
2008-12-12 2008-12-11 B Purchase KITT BARRY M Large shareholder
10,300 +0.5%
0.15
US$1,545 		10,300 +0.5% 0.15 US$1,545
2008-12-12 2008-12-10 B Purchase KITT BARRY M Large shareholder
1,900 +0.1%
0.15
US$285 		1,900 +0.1% 0.15 US$285
2008-12-09 2008-12-09 B Purchase KITT BARRY M Large shareholder
300 +0.0%
0.15
US$45 		300 +0.0% 0.15 US$45
2008-12-09 2008-12-08 B Purchase KITT BARRY M Large shareholder
25,700 +1.4%
0.15
US$3,855 		25,700 +1.4% 0.15 US$3,855
2008-12-09 2008-12-05 B Purchase KITT BARRY M Large shareholder
9,000 +0.5%
0.15
US$1,350 		9,000 +0.5% 0.15 US$1,350
2008-12-04 2008-12-04 B Purchase KITT BARRY M Large shareholder
8,900 +0.5%
0.15
US$1,335 		8,900 +0.5% 0.15 US$1,335
2008-12-04 2008-12-03 B Purchase KITT BARRY M Large shareholder
7,200 +0.4%
0.10
US$720 		7,200 +0.4% 0.10 US$720
2008-12-04 2008-12-02 B Purchase KITT BARRY M Large shareholder
19,700 +1.1%
0.10
US$1,970 		19,700 +1.1% 0.10 US$1,970
2008-11-18 2008-11-17 B Purchase KITT BARRY M Large shareholder
23,400 +1.3%
0.20
US$4,589 		23,400 +1.3% 0.20 US$4,589
2005-12-22 2005-12-02 S Sale WARNER STEPHEN J Non-Executive Director
1,000 -0.4%
2.11
US$2,110 		1,000 -0.4% 2.11 US$2,110
2005-12-22 2005-11-30 S Sale WARNER STEPHEN J Non-Executive Director
5,000 -1.8%
2.12
US$10,600 		5,000 -1.8% 2.12 US$10,600
2005-12-22 2005-11-30 S Sale WARNER STEPHEN J Non-Executive Director
3,000 -1.1%
2.10
US$6,300 		3,000 -1.1% 2.10 US$6,300
2005-12-22 2005-11-30 S Sale WARNER STEPHEN J Non-Executive Director
4,000 -1.4%
2.08
US$8,320 		4,000 -1.4% 2.08 US$8,320
2005-12-22 2005-11-29 S Sale WARNER STEPHEN J Non-Executive Director
1,000 -0.3%
2.06
US$2,060 		1,000 -0.3% 2.06 US$2,060
2005-12-22 2005-11-23 S Sale WARNER STEPHEN J Non-Executive Director
200 -0.1%
2.24
US$448 		200 -0.1% 2.24 US$448
2005-12-22 2005-11-21 S Sale WARNER STEPHEN J Non-Executive Director
1,000 -0.3%
2.28
US$2,280 		1,000 -0.3% 2.28 US$2,280
2005-12-22 2005-11-21 S Sale WARNER STEPHEN J Non-Executive Director
2,000 -0.7%
2.26
US$4,520 		2,000 -0.7% 2.26 US$4,520
2005-06-13 2005-06-09 S Sale WARNER STEPHEN J Non-Executive Director
5,000 -1.7%
2.58
US$12,900 		5,000 -1.7% 2.58 US$12,900
2005-06-13 2005-06-09 S Sale WARNER STEPHEN J Non-Executive Director
3,000 -1.0%
2.60
US$7,800 		3,000 -1.0% 2.60 US$7,800
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