Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 26 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

No open-market trades on record; showing all filings.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Jan. 2, 2026 DYAI M 21,552 · · 202,311 Direct +11.92% Acquired (price as of 2026-10-02)
Jan. 2, 2026 DYAI M 21,552 · · 0 Direct -100.00% Disposed (price as of 2026-10-02)
Jan. 2, 2026 DYAI A 50,000 · · 50,000 Direct · Acquired (price as of 2026-10-02)
Jan. 2, 2026 DYAI A 39,894 · · 39,894 Direct · Acquired (price as of 2026-10-02)
Jan. 6, 2025 DYAI M 18,750 $0.97 $18,188 174,509 Direct +12.04% Acquired -53.0% (price as of 2026-10-02)
Jan. 6, 2025 DYAI M 6,250 $0.97 $6,062 180,759 Direct +3.58% Acquired -53.0% (price as of 2026-10-02)
Jan. 2, 2025 DYAI M 23,585 · · 155,759 Direct +17.84% Acquired (price as of 2026-10-02)
Jan. 2, 2025 DYAI M 23,585 · · 0 Direct -100.00% Disposed (price as of 2026-10-02)
Jan. 2, 2025 DYAI A 50,000 · · 50,000 Direct · Acquired (price as of 2026-10-02)
Jan. 2, 2025 DYAI A 21,552 · · 21,552 Direct · Acquired (price as of 2026-10-02)
Jan. 6, 2024 DYAI M 18,750 · · 0 Direct -100.00% Disposed (price as of 2026-10-02)
Jan. 6, 2024 DYAI M 6,250 · · 0 Direct -100.00% Disposed (price as of 2026-10-02)
Jan. 3, 2024 DYAI M 27,174 · · 132,174 Direct +25.88% Acquired (price as of 2026-10-02)
Jan. 3, 2024 DYAI M 27,174 · · 0 Direct -100.00% Disposed (price as of 2026-10-02)
Jan. 2, 2024 DYAI A 50,000 · · 50,000 Direct · Acquired (price as of 2026-10-02)
Jan. 2, 2024 DYAI A 23,585 · · 23,585 Direct · Acquired (price as of 2026-10-02)
Jan. 3, 2023 DYAI A 35,000 · · 35,000 Direct · Acquired (price as of 2026-10-02)
Jan. 3, 2023 DYAI A 27,174 · · 27,174 Direct · Acquired (price as of 2026-10-02)
June 10, 2022 DYAI A 25,000 · · 25,000 Direct · Acquired (price as of 2026-10-02)
Jan. 28, 2022 DYAI M 25,000 $1.21 $30,250 25,000 Direct · Acquired -62.3% (price as of 2026-10-02)
Jan. 28, 2022 DYAI M 25,000 · · 25,000 Direct -50.00% Disposed (price as of 2026-10-02)
Jan. 3, 2022 DYAI A 35,000 · · 35,000 Direct · Acquired (price as of 2026-10-02)
Jan. 29, 2021 DYAI M 50,000 $1.93 $96,500 50,000 Direct · Acquired -76.4% (price as of 2026-10-02)
Jan. 29, 2021 DYAI M 50,000 · · 50,000 Direct -50.00% Disposed (price as of 2026-10-02)
Jan. 4, 2021 DYAI A 35,000 · · 35,000 Direct · Acquired (price as of 2026-10-02)
Jan. 2, 2020 DYAI A 50,000 · · 50,000 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
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Jan. 2, 2026 DYAI Restricted Stock Unit Common Stock (21,552) · · 21,552 Disposed
Jan. 2, 2026 DYAI Stock Option Common Stock (50,000) $0.94 Jan. 2, 2036 50,000 Acquired
Jan. 2, 2026 DYAI Restricted Stock Unit Common Stock (39,894) · · 39,894 Acquired
Jan. 2, 2025 DYAI Restricted Stock Unit Common Stock (23,585) · · 23,585 Disposed
Jan. 2, 2025 DYAI Stock Option Common Stock (50,000) $1.74 Jan. 2, 2035 50,000 Acquired
Jan. 2, 2025 DYAI Restricted Stock Unit Common Stock (21,552) · · 21,552 Acquired
Jan. 6, 2024 DYAI Stock Option Common Stock (18,750) $0.97 Jan. 7, 2025 18,750 Disposed
Jan. 6, 2024 DYAI Stock Option Common Stock (6,250) $0.97 Jan. 7, 2025 6,250 Disposed
Jan. 3, 2024 DYAI Restricted Stock Unit Common Stock (27,174) · · 27,174 Disposed
Jan. 2, 2024 DYAI Stock Option Common Stock (50,000) $1.59 Jan. 2, 2034 50,000 Acquired
Jan. 2, 2024 DYAI Restricted Stock Unit Common Stock (23,585) · · 23,585 Acquired
Jan. 3, 2023 DYAI Stock Option Common Stock (35,000) $1.38 Jan. 2, 2033 35,000 Acquired
Jan. 3, 2023 DYAI Restricted Stock Unit Common Stock (27,174) · · 27,174 Acquired
June 10, 2022 DYAI Stock Option Common Stock (25,000) $2.60 June 9, 2032 25,000 Acquired
Jan. 28, 2022 DYAI Stock Option Common Stock (25,000) $1.21 Feb. 27, 2022 25,000 Disposed
Jan. 3, 2022 DYAI Stock Option Common Stock (35,000) $4.81 Jan. 2, 2032 35,000 Acquired
Jan. 29, 2021 DYAI Stock Option Common Stock (50,000) $1.93 Feb. 28, 2021 50,000 Disposed
Jan. 4, 2021 DYAI Stock Option Common Stock (35,000) $5.16 Jan. 3, 2031 35,000 Acquired
Jan. 2, 2020 DYAI Stock Option Common Stock (50,000) $5.27 Jan. 1, 2030 50,000 Acquired

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

Initial ownership (Form 3) 45 holdings

07

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

DateTickerSecuritySharesOwnership
Feb. 13, 2019 DYAI Common Stock 30,000 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (12,500) 12,500 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (9,375) 9,375 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (9,375) 9,375 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (9,375) 9,375 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (9,375) 9,375 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (12,500) 12,500 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (9,375) 9,375 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (9,375) 9,375 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (9,375) 9,375 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (9,375) 9,375 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (12,500) 12,500 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (9,375) 9,375 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (9,375) 9,375 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (9,375) 9,375 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (9,375) 9,375 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (12,500) 12,500 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (9,375) 9,375 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (9,375) 9,375 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (9,375) 9,375 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (9,375) 9,375 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (6,250) 6,250 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (4,688) 4,688 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (4,687) 4,687 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (4,688) 4,688 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (4,687) 4,687 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (6,250) 6,250 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (4,688) 4,688 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (4,687) 4,687 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (9,375) 9,375 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (6,250) 6,250 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (4,688) 4,688 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (14,062) 14,062 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (6,250) 6,250 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (18,750) 18,750 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (6,250) 6,250 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (4,688) 4,688 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (4,687) 4,687 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (4,688) 4,688 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (4,687) 4,687 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (6,250) 6,250 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (4,688) 4,688 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (4,687) 4,687 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (4,688) 4,688 Direct
Feb. 13, 2019 DYAI Stock Option→ Common Stock (4,687) 4,687 Direct