Arindam Bose
CIK 1702631 · View on SEC EDGAR ↗
Insider
First SEC filing: Feb. 13, 2019 · Latest: Feb. 13, 2019
On this page
Insider at
Insider transactions
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.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Jan. 2, 2020 | DYAI | A | 75,000 | — | — | 75,000 Direct | — | Acquired | (price as of 2026-08-20) |
| June 25, 2019 | DYAI | A | 25,000 | — | — | 25,000 Direct | — | Acquired | (price as of 2026-08-20) |
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.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Jan. 2, 2020 | DYAI | Stock Option | Common Stock (75,000) | $5.27 | Jan. 1, 2030 | 75,000 | Acquired |
| June 25, 2019 | DYAI | Stock Option | Common Stock (25,000) | $5.83 | June 24, 2029 | 25,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 25 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Feb. 13, 2019 | DYAI | Stock Option→ Common Stock (18,750) | 18,750 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option→ Common Stock (14,062) | 14,062 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option→ Common Stock (14,062) | 14,062 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option→ Common Stock (14,062) | 14,062 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option→ Common Stock (14,062) | 14,062 | 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 (7,500) | 7,500 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option→ Common Stock (5,625) | 5,625 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option→ Common Stock (5,625) | 5,625 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option→ Common Stock (5,625) | 5,625 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option→ Common Stock (5,625) | 5,625 | Direct |