Ronen Tchelet
Insider
First SEC filing: Feb. 13, 2019 · Latest: Feb. 13, 2019
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Jan. 2, 2026 | DYAI | A | 18,064 | · | · | 50,897 Direct | +55.02% | 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 | 8,980 | · | · | 32,833 Direct | +37.65% | Acquired | (price as of 2026-10-02) |
| Jan. 2, 2025 | DYAI | A | 45,000 | · | · | 45,000 Direct | · | Acquired | (price as of 2026-10-02) |
| March 13, 2024 | DYAI | A | 11,169 | · | · | 23,853 Direct | +88.06% | Acquired | (price as of 2026-10-02) |
| Jan. 2, 2024 | DYAI | A | 37,500 | · | · | 37,500 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 3, 2023 | DYAI | A | 12,684 | $1.38 | $17,504 | 12,684 Direct | · | Acquired | -67.0% (price as of 2026-10-02) |
| Jan. 3, 2023 | DYAI | A | 37,500 | · | · | 37,500 Direct | · | Acquired | (price as of 2026-10-02) |
| July 8, 2022 | DYAI | M | 1,089 | $1.57 | $1,710 | 1,089 Direct | · | Acquired | -71.0% (price as of 2026-10-02) |
| July 8, 2022 | DYAI | S 10b5-1 | 1,089 | $3.41 | $3,713 | 0 Direct | -100.00% | Disposed | -86.6% (price as of 2026-10-02) |
| July 8, 2022 | DYAI | M | 1,089 | · | · | 41,057 Direct | -2.58% | Disposed | (price as of 2026-10-02) |
| July 7, 2022 | DYAI | M | 7,854 | $1.57 | $12,331 | 7,854 Direct | · | Acquired | -71.0% (price as of 2026-10-02) |
| July 7, 2022 | DYAI | S 10b5-1 | 7,854 | $3.50 | $27,489 | 0 Direct | -100.00% | Disposed | -87.0% (price as of 2026-10-02) |
| July 7, 2022 | DYAI | M | 7,854 | · | · | 42,146 Direct | -15.71% | Disposed | (price as of 2026-10-02) |
| Jan. 3, 2022 | DYAI | A | 37,500 | · | · | 37,500 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 4, 2021 | DYAI | A | 67,500 | · | · | 67,500 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) |
| Dec. 11, 2019 | DYAI | M | 4,575 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 11, 2019 | DYAI | S 10b5-1 | 4,575 | $5.80 | $26,535 | 0 Direct | -100.00% | Disposed | -92.1% (price as of 2026-10-02) |
| Dec. 11, 2019 | DYAI | M | 4,575 | $1.41 | $6,451 | 10,000 Direct | +84.33% | Acquired | -67.7% (price as of 2026-10-02) |
| Dec. 10, 2019 | DYAI | M | 5,425 | · | · | 4,575 Direct | -54.25% | Disposed | (price as of 2026-10-02) |
| Dec. 10, 2019 | DYAI | S 10b5-1 | 5,425 | $5.84 | $31,682 | 4,575 Direct | -54.25% | Disposed | -92.2% (price as of 2026-10-02) |
| Dec. 10, 2019 | DYAI | M | 5,425 | $1.41 | $7,649 | 5,425 Direct | · | Acquired | -67.7% (price as of 2026-10-02) |
| Nov. 11, 2019 | DYAI | M | 10,000 | · | · | 10,000 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| Nov. 11, 2019 | DYAI | S 10b5-1 | 10,000 | $5.99 | $59,900 | 0 Direct | -100.00% | Disposed | -92.4% (price as of 2026-10-02) |
| Nov. 11, 2019 | DYAI | M | 10,000 | $1.41 | $14,100 | 10,000 Direct | · | Acquired | -67.7% (price as of 2026-10-02) |
| Oct. 11, 2019 | DYAI | M | 5,218 | · | · | 20,000 Direct | -20.69% | Disposed | (price as of 2026-10-02) |
| Oct. 11, 2019 | DYAI | S 10b5-1 | 5,218 | $6.08 | $31,725 | 0 Direct | -100.00% | Disposed | -92.5% (price as of 2026-10-02) |
| Oct. 11, 2019 | DYAI | M | 5,218 | $1.41 | $7,357 | 5,218 Direct | · | Acquired | -67.7% (price as of 2026-10-02) |
| Oct. 10, 2019 | DYAI | M | 4,782 | · | · | 25,218 Direct | -15.94% | Disposed | (price as of 2026-10-02) |
| Oct. 10, 2019 | DYAI | S 10b5-1 | 4,782 | $6.04 | $28,883 | 0 Direct | -100.00% | Disposed | -92.5% (price as of 2026-10-02) |
| Oct. 10, 2019 | DYAI | M | 4,782 | $1.41 | $6,743 | 4,782 Direct | · | Acquired | -67.7% (price as of 2026-10-02) |
| Sept. 10, 2019 | DYAI | M | 10,000 | · | · | 30,000 Direct | -25.00% | Disposed | (price as of 2026-10-02) |
| Sept. 10, 2019 | DYAI | S 10b5-1 | 10,000 | $5.27 | $52,700 | 0 Direct | -100.00% | Disposed | -91.4% (price as of 2026-10-02) |
| Sept. 10, 2019 | DYAI | M | 10,000 | $1.41 | $14,100 | 10,000 Direct | · | Acquired | -67.7% (price as of 2026-10-02) |
| Aug. 13, 2019 | DYAI | M | 6,300 | · | · | 40,000 Direct | -13.61% | Disposed | (price as of 2026-10-02) |
| Aug. 13, 2019 | DYAI | S 10b5-1 | 6,300 | $5.75 | $36,225 | 0 Direct | -100.00% | Disposed | -92.1% (price as of 2026-10-02) |
| Aug. 13, 2019 | DYAI | M | 6,300 | $1.41 | $8,883 | 6,300 Direct | · | Acquired | -67.7% (price as of 2026-10-02) |
| Aug. 12, 2019 | DYAI | M | 3,700 | · | · | 46,300 Direct | -7.40% | Disposed | (price as of 2026-10-02) |
| Aug. 12, 2019 | DYAI | S 10b5-1 | 3,700 | $5.72 | $21,164 | 0 Direct | -100.00% | Disposed | -92.0% (price as of 2026-10-02) |
| Aug. 12, 2019 | DYAI | M | 3,700 | $1.41 | $5,217 | 3,700 Direct | · | Acquired | -67.7% (price as of 2026-10-02) |
| July 10, 2019 | DYAI | M | 10,000 | · | · | 50,000 Direct | -16.67% | Disposed | (price as of 2026-10-02) |
| July 10, 2019 | DYAI | S 10b5-1 | 10,000 | $5.87 | $58,700 | 0 Direct | -100.00% | Disposed | -92.2% (price as of 2026-10-02) |
| July 10, 2019 | DYAI | M | 10,000 | $1.41 | $14,100 | 10,000 Direct | · | Acquired | -67.7% (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 417 | · | · | 60,000 Direct | -0.69% | Disposed | (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 2,083 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 2,083 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 2,084 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 2,083 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 2,083 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 2,084 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 2,083 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 2,083 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 2,084 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 833 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 18, 2019 | DYAI | S 10b5-1 | 20,000 | $6.44 | $128,800 | 0 Direct | -100.00% | Disposed | -92.9% (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 417 | $1.41 | $588 | 20,000 Direct | +2.13% | Acquired | -67.7% (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 2,083 | $1.41 | $2,937 | 19,583 Direct | +11.90% | Acquired | -67.7% (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 2,083 | $1.41 | $2,937 | 17,500 Direct | +13.51% | Acquired | -67.7% (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 2,084 | $1.41 | $2,938 | 15,417 Direct | +15.63% | Acquired | -67.7% (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 2,083 | $1.41 | $2,937 | 13,333 Direct | +18.52% | Acquired | -67.7% (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 2,083 | $1.41 | $2,937 | 11,250 Direct | +22.72% | Acquired | -67.7% (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 2,084 | $1.41 | $2,938 | 9,167 Direct | +29.42% | Acquired | -67.7% (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 2,083 | $1.41 | $2,937 | 7,083 Direct | +41.66% | Acquired | -67.7% (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 2,083 | $1.41 | $2,937 | 5,000 Direct | +71.41% | Acquired | -67.7% (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 2,084 | $1.41 | $2,938 | 2,917 Direct | +250.18% | Acquired | -67.7% (price as of 2026-10-02) |
| June 18, 2019 | DYAI | M | 833 | $1.41 | $1,175 | 833 Direct | · | Acquired | -67.7% (price as of 2026-10-02) |
| June 17, 2019 | DYAI | M | 1,250 | · | · | 833 Direct | -60.01% | Disposed | (price as of 2026-10-02) |
| June 17, 2019 | DYAI | M | 2,083 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 17, 2019 | DYAI | M | 2,084 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 17, 2019 | DYAI | M | 2,083 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 17, 2019 | DYAI | M | 2,083 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 17, 2019 | DYAI | M | 2,084 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 17, 2019 | DYAI | M | 2,083 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 17, 2019 | DYAI | M | 2,083 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 17, 2019 | DYAI | M | 2,084 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 17, 2019 | DYAI | M | 2,083 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 17, 2019 | DYAI | S 10b5-1 | 20,000 | $6.11 | $122,200 | 0 Direct | -100.00% | Disposed | -92.5% (price as of 2026-10-02) |
| June 17, 2019 | DYAI | M | 1,250 | $1.41 | $1,762 | 20,000 Direct | +6.67% | Acquired | -67.7% (price as of 2026-10-02) |
| June 17, 2019 | DYAI | M | 2,083 | $1.41 | $2,937 | 18,750 Direct | +12.50% | Acquired | -67.7% (price as of 2026-10-02) |
| June 17, 2019 | DYAI | M | 2,084 | $1.41 | $2,938 | 16,667 Direct | +14.29% | Acquired | -67.7% (price as of 2026-10-02) |
| June 17, 2019 | DYAI | M | 2,083 | $1.41 | $2,937 | 14,583 Direct | +16.66% | Acquired | -67.7% (price as of 2026-10-02) |
| June 17, 2019 | DYAI | M | 2,083 | $1.41 | $2,937 | 12,500 Direct | +20.00% | Acquired | -67.7% (price as of 2026-10-02) |
| June 17, 2019 | DYAI | M | 2,084 | $1.41 | $2,938 | 10,417 Direct | +25.01% | Acquired | -67.7% (price as of 2026-10-02) |
| June 17, 2019 | DYAI | M | 2,083 | $1.41 | $2,937 | 8,333 Direct | +33.33% | Acquired | -67.7% (price as of 2026-10-02) |
| June 17, 2019 | DYAI | M | 2,083 | $1.41 | $2,937 | 6,250 Direct | +49.99% | Acquired | -67.7% (price as of 2026-10-02) |
| June 17, 2019 | DYAI | M | 2,084 | $1.41 | $2,938 | 4,167 Direct | +100.05% | Acquired | -67.7% (price as of 2026-10-02) |
| June 17, 2019 | DYAI | M | 2,083 | $1.41 | $2,937 | 2,083 Direct | · | Acquired | -67.7% (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.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Jan. 2, 2026 | DYAI | Stock Option | Common Stock | $0.94 | Jan. 2, 2036 | 47,250 | Acquired |
| Jan. 2, 2025 | DYAI | Stock Option | Common Stock | $1.74 | Jan. 2, 2035 | 45,000 | Acquired |
| Jan. 2, 2024 | DYAI | Stock Option | Common Stock | $1.59 | Jan. 2, 2034 | 37,500 | Acquired |
| Jan. 3, 2023 | DYAI | Stock Option | Common Stock | $1.38 | Jan. 2, 2033 | 37,500 | Acquired |
| July 8, 2022 | DYAI | Stock Option | Common Stock | $1.57 | Jan. 18, 2026 | 1,089 | Disposed |
| July 7, 2022 | DYAI | Stock Option | Common Stock | $1.57 | Jan. 18, 2026 | 7,854 | Disposed |
| Jan. 3, 2022 | DYAI | Stock Option | Common Stock | $4.81 | Jan. 2, 2032 | 37,500 | Acquired |
| Jan. 4, 2021 | DYAI | Stock Option | Common Stock | $5.16 | Jan. 3, 2031 | 67,500 | Acquired |
| Jan. 2, 2020 | DYAI | Stock Option | Common Stock | $5.27 | Jan. 1, 2030 | 75,000 | Acquired |
| Dec. 11, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 4,575 | Disposed |
| Dec. 10, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 5,425 | Disposed |
| Nov. 11, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 10,000 | Disposed |
| Oct. 11, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 5,218 | Disposed |
| Oct. 10, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 4,782 | Disposed |
| Sept. 10, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 10,000 | Disposed |
| Aug. 13, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 6,300 | Disposed |
| Aug. 12, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 3,700 | Disposed |
| July 10, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 10,000 | Disposed |
| June 18, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 417 | Disposed |
| June 18, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 2,083 | Disposed |
| June 18, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 2,083 | Disposed |
| June 18, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 2,084 | Disposed |
| June 18, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 2,083 | Disposed |
| June 18, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 2,083 | Disposed |
| June 18, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 2,084 | Disposed |
| June 18, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 2,083 | Disposed |
| June 18, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 2,083 | Disposed |
| June 18, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 2,084 | Disposed |
| June 18, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 833 | Disposed |
| June 17, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 1,250 | Disposed |
| June 17, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 2,083 | Disposed |
| June 17, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 2,084 | Disposed |
| June 17, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 2,083 | Disposed |
| June 17, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 2,083 | Disposed |
| June 17, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 2,084 | Disposed |
| June 17, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 2,083 | Disposed |
| June 17, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 2,083 | Disposed |
| June 17, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 2,084 | Disposed |
| June 17, 2019 | DYAI | Stock Option | Common Stock | $1.41 | April 30, 2024 | 2,083 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 27 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Feb. 13, 2019 | DYAI | Stock Option | 100,000 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 50,000 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 60,000 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 2,083 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 2,084 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 2,083 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 2,083 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 2,084 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 2,083 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 2,083 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 2,084 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 2,083 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 2,083 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 2,084 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 2,083 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 2,083 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 2,084 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 2,083 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 2,083 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 2,084 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 2,083 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 2,083 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 60,417 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 50,000 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 50,000 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 50,000 | Direct |
| Feb. 13, 2019 | DYAI | Stock Option | 50,000 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2019 | $207,647 | $41,193 | · | $57,000 | · | · | · | $305,840 |
| 2018 | $212,320 | · | · | $23,400 | · | · | $11,759 | $247,479 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.