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DYADIC INTERNATIONAL INC

DYAI Net selling
CIK 0001213809 #4921 in the set updated 17 Sep 2026
Bought (120 mo)
$124.97K
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$118.25B
$0.00 on a plan · $1.43M straight out of an exercise
Sold at will
$118.25B
18 of 35 sales
Net
−$118.25B
−$118.25B against sales at will

By person

11 insiders · 55 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Francisco Trust under agreement dated February 28, 1996 entity
10% owner
—
$118.25B (12)
−$118.25B
3,280,272
9.00%
$3.98M
−11.9%
EMALFARB MARK A
CEO
—
$1.64M (9)
−$1.64M
30,050,267
82.47%
$36.45M
+2.4%
TCHELET RONEN
VP of Research and Bus. Dvlpmt
—
$629.72K (13) scheduled
−$629.72K
50,897
0.1397%
$61.74K
—
Rawson Ping Wang
Chief Financial Officer
$100.27K (5)
—
+$100.27K
179,801
0.4934%
$218.12K
+538.7%
Buckland Barry
Director
—
$92.70K (1) scheduled
−$92.70K
38,967
0.1069%
$47.27K
—
Hazelton Joseph P
President & COO
$24.70K (1)
—
+$24.70K
191,758
0.5262%
$232.62K
—
Tarnok Michael P.
Director
—
—
—
281,033
0.7712%
$340.92K
+48.8%
HERBST SETH
Director
—
—
—
202,311
0.5552%
$245.42K
+574.4%
Kaye Jack
Director
—
—
—
81,201
0.2228%
$98.50K
+1,167%
Lucy Patrick K.
Director
—
—
—
72,311
0.1984%
$87.72K
—
Bose Arindam
Director
—
—
—
61,535
0.1689%
$74.65K
—

Individual transactions

14
Insider
Date
Role
Action
Shares
Price
Amount
Kaye Jack
5 Mar 2025
Director
Exercised, kept
22,500
$1.33
$29.93K
Kaye Jack
5 Mar 2025
Director
Exercised, kept
7,500
$1.33
$9.98K
HERBST SETH
6 Jan 2025
Director
Exercised, kept
6,250
$0.97
$6.06K
HERBST SETH
6 Jan 2025
Director
Exercised, kept
18,750
$0.97
$18.19K
Tarnok Michael P.
22 Nov 2024
Director
Exercised, kept
18,750
$0.97
$18.19K
Tarnok Michael P.
22 Nov 2024
Director
Exercised, kept
6,250
$0.97
$6.06K
Buckland Barry
11 Jun 2024
Director
Exercised, kept
11,793
$1.59
$18.75K
Tarnok Michael P.
21 May 2024
Director
Exercised, kept
16,875
$1.36
$22.95K
Tarnok Michael P.
21 May 2024
Director
Exercised, kept
5,625
$1.36
$7.65K
Tarnok Michael P.
21 May 2024
Director
Exercised, kept
7,500
$1.36
$10.20K
HERBST SETH
28 Jan 2022
Director
Exercised, kept
25,000
$1.21
$30.25K
HERBST SETH
29 Jan 2021
Director
Exercised, kept
50,000
$1.93
$96.50K
EMALFARB MARK A
12 Apr 2019
President and CEO
Exercised, kept indirect
37,500
$1.71
$64.13K
EMALFARB MARK A
12 Apr 2019
President and CEO
Exercised, kept indirect
12,500
$1.71
$21.38K
Show all 55 transactions →

What was left out

Form 4 filings counted 114
Amendments (4/A) skipped 1
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 17
Sales at will 18
Transactions with no price 0
Shares from compensation/vesting 2,219,819
Sales filed before the plan box existed 8
History held since 12 Apr 2019