Ping Wang Rawson — SEC Insider Profile, Roles & Companies

Insider at

04

DYAI buying June 3, 2021

Insider transactions

05

0 buys (P) 0 sells (S) Net: $0 + 12 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

12 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Jan. 2, 2026	DYAI	A	29,158	·	·	170,151 Direct	+20.68%	Acquired	(price as of 2026-10-02)
Jan. 2, 2026	DYAI	A	47,250	·	·	47,250 Direct	·	Acquired	(price as of 2026-10-02)
Jan. 2, 2025	DYAI	A	20,776	·	·	140,993 Direct	+17.28%	Acquired	(price as of 2026-10-02)
Jan. 2, 2025	DYAI	A	64,500	·	·	64,500 Direct	·	Acquired	(price as of 2026-10-02)
March 13, 2024	DYAI	A	35,366	·	·	120,217 Direct	+41.68%	Acquired	(price as of 2026-10-02)
Jan. 2, 2024	DYAI	A	75,000	·	·	75,000 Direct	·	Acquired	(price as of 2026-10-02)
Jan. 3, 2023	DYAI	A	39,351	$1.38	$54,304	84,851 Direct	+86.49%	Acquired	-67.0% (price as of 2026-10-02)
Jan. 3, 2023	DYAI	A	75,000	·	·	75,000 Direct	·	Acquired	(price as of 2026-10-02)
Jan. 3, 2022	DYAI	A	75,000	·	·	75,000 Direct	·	Acquired	(price as of 2026-10-02)
June 3, 2021	DYAI	P	1,350	$3.60	$4,860	35,850 Direct	+3.91%	Acquired	-87.3% (price as of 2026-10-02)
June 3, 2021	DYAI	P	3,320	$3.60	$11,952	9,650 Indirect	+52.45%	Acquired	-87.3% (price as of 2026-10-02)
June 2, 2021	DYAI	P	6,156	$3.83	$23,577	6,156 Indirect	·	Acquired	-88.1% (price as of 2026-10-02)
June 2, 2021	DYAI	P	174	$3.89	$677	6,330 Indirect	+2.83%	Acquired	-88.3% (price as of 2026-10-02)
June 2, 2021	DYAI	P	16,000	$3.70	$59,200	34,500 Direct	+86.49%	Acquired	-87.7% (price as of 2026-10-02)
Jan. 4, 2021	DYAI	A	75,000	·	·	75,000 Direct	·	Acquired	(price as of 2026-10-02)
Jan. 2, 2020	DYAI	A	75,000	·	·	75,000 Direct	·	Acquired	(price as of 2026-10-02)
June 28, 2019	DYAI	A	25,000	·	·	25,000 Direct	·	Acquired	(price as of 2026-10-02)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

06

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Jan. 2, 2026	DYAI	Stock Option	Common Stock (47,250)	$0.94	Jan. 2, 2036	47,250	Acquired
Jan. 2, 2025	DYAI	Stock Option	Common Stock (64,500)	$1.74	Jan. 2, 2035	64,500	Acquired
Jan. 2, 2024	DYAI	Stock Option	Common Stock (75,000)	$1.59	Jan. 2, 2034	75,000	Acquired
Jan. 3, 2023	DYAI	Stock Option	Common Stock (75,000)	$1.38	Jan. 2, 2033	75,000	Acquired
Jan. 3, 2022	DYAI	Stock Option	Common Stock (75,000)	$4.81	Jan. 2, 2032	75,000	Acquired
Jan. 4, 2021	DYAI	Stock Option	Common Stock (75,000)	$5.16	Jan. 3, 2031	75,000	Acquired
Jan. 2, 2020	DYAI	Stock Option	Common Stock (75,000)	$5.27	Jan. 1, 2030	75,000	Acquired
June 28, 2019	DYAI	Stock Option	Common Stock (25,000)	$6.26	June 27, 2029	25,000	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 23 holdings

07

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
Feb. 13, 2019	DYAI	Common Stock	18,500	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (25,000)	25,000	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (25,000)	25,000	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (25,000)	25,000	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (25,000)	25,000	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (2,973)	2,973	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (2,972)	2,972	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (2,973)	2,973	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (2,972)	2,972	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (7,500)	7,500	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (7,500)	7,500	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (7,500)	7,500	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (7,500)	7,500	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (50,000)	50,000	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (12,500)	12,500	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (12,500)	12,500	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (12,500)	12,500	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (12,500)	12,500	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (125,000)	125,000	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (6,250)	6,250	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (6,250)	6,250	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (6,250)	6,250	Direct
Feb. 13, 2019	DYAI	Stock Option→ Common Stock (6,250)	6,250	Direct

Compensation (DEF 14A)

08

Matched by name from proxy statements (DEF 14A) — verify against the filing.

DYAI

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2019	$220,000	$56,250	·	$114,250	·	·	$8,807	$399,307
2018	$199,755	·	·	$34,600	·	·	$7,996	$242,351

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.