Harry Z Rosengart

Insider

First SEC filing: May 26, 2005 · Latest: May 26, 2005

On this page

Insider at

0 buys (P) 0 sells (S) Net: $0 + 3 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.

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Feb. 21, 2007	DYAI	A	25,000	$6.10	$152,500	96,667 Direct	+34.88%	Acquired	-88.4% (price as of 2026-08-21)
Jan. 2, 2007	DYAI	A	25,000	$6.10	$152,500	71,667 Direct	+53.57%	Acquired	-88.4% (price as of 2026-08-21)
Feb. 10, 2006	DYAI	A	16,667	$2.36	$39,334	46,667 Direct	+55.56%	Acquired	-69.9% (price as of 2026-08-21)

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.

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Feb. 21, 2007	DYAI	Non-Qualified Stock Option	Common Stock (25,000)	$6.10	Feb. 20, 2012	25,000	Acquired
Jan. 2, 2007	DYAI	Non-Qualified Stock Option	Common Stock (25,000)	$6.10	Jan. 1, 2012	25,000	Acquired
Feb. 10, 2006	DYAI	Non-Qualified Stock Option	Common Stock (16,667)	$2.36	Feb. 9, 2011	16,667	Acquired

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

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

Date	Ticker	Security	Shares	Ownership
May 26, 2005	DYAI	Nonqualified Stock Option→ Common Stock (30,000)	30,000	Direct