Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 2 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
April 5, 2007 DYAI A 20,000 $5.80 $116,000 110,000 Direct +22.22% Acquired -92.1% (price as of 2026-10-02)
April 4, 2006 DYAI A 20,000 $4.60 $92,000 90,000 Direct +28.57% Acquired -90.1% (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.

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DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
April 5, 2007 DYAI Incentive Stock Option Common Stock (20,000) $5.80 April 4, 2017 20,000 Acquired
April 4, 2006 DYAI Employee Stock Option Common Stock (20,000) $4.60 April 3, 2011 20,000 Acquired

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

Initial ownership (Form 3) 5 holdings

07

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

DateTickerSecuritySharesOwnership
May 26, 2005 DYAI Common Stock 3,716 Direct
May 26, 2005 DYAI Employee Stock Option→ Common Stock (35,000) 35,000 Direct
May 26, 2005 DYAI Employee Stock Option→ Common Stock (10,000) 10,000 Direct
May 26, 2005 DYAI Employee Stock Option→ Common Stock (15,000) 15,000 Direct
May 26, 2005 DYAI Employee Stock Option→ Common Stock (10,000) 10,000 Direct