Mark Lackner
Insider
First SEC filing: Jan. 3, 2024 · Latest: Jan. 3, 2024
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 |
|---|---|---|---|---|---|---|---|---|---|
| Feb. 3, 2025 | ZNTL | A | 335,907 | · | · | 527,224 Direct | +175.58% | Acquired | (price as of 2026-10-02) |
| Feb. 3, 2025 | ZNTL | S | 14,368 | $1.71 | $24,569 | 512,856 Direct | -2.73% | Disposed | 47.4% (price as of 2026-10-02) |
| Feb. 3, 2025 | ZNTL | A | 124,714 | · | · | 124,714 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 2, 2025 | ZNTL | S | 4,411 | $3.12 | $13,762 | 191,317 Direct | -2.25% | Disposed | -19.2% (price as of 2026-10-02) |
| Feb. 2, 2024 | ZNTL | S | 1,585 | $11.54 | $18,291 | 195,728 Direct | -0.80% | Disposed | -78.2% (price as of 2026-10-02) |
| Feb. 1, 2024 | ZNTL | A | 141,000 | · | · | 197,313 Direct | +250.39% | Acquired | (price as of 2026-10-02) |
| Feb. 1, 2024 | ZNTL | A | 141,000 | · | · | 141,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 2, 2024 | ZNTL | A | 40,000 | · | · | 56,313 Direct | +245.20% | Acquired | (price as of 2026-10-02) |
| Jan. 2, 2024 | ZNTL | A | 60,000 | · | · | 60,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 24, 2021 | IDYA | A | 45,000 | · | · | 45,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 10, 2021 | IDYA | M | 596 | $6.98 | $4,160 | 596 Direct | · | Acquired | 435.2% (price as of 2026-10-02) |
| Feb. 10, 2021 | IDYA | S 10b5-1 | 596 | $21.00 | $12,516 | 0 Direct | -100.00% | Disposed | 77.9% (price as of 2026-10-02) |
| Feb. 10, 2021 | IDYA | M | 596 | · | · | 33,014 Direct | -1.77% | Disposed | (price as of 2026-10-02) |
| Feb. 9, 2021 | IDYA | M | 1,104 | $6.98 | $7,706 | 1,104 Direct | · | Acquired | 435.2% (price as of 2026-10-02) |
| Feb. 9, 2021 | IDYA | S 10b5-1 | 1,104 | $21.05 | $23,239 | 0 Direct | -100.00% | Disposed | 77.5% (price as of 2026-10-02) |
| Feb. 9, 2021 | IDYA | M | 1,104 | · | · | 33,610 Direct | -3.18% | Disposed | (price as of 2026-10-02) |
| Feb. 8, 2021 | IDYA | M | 300 | $6.98 | $2,094 | 300 Direct | · | Acquired | 435.2% (price as of 2026-10-02) |
| Feb. 8, 2021 | IDYA | S 10b5-1 | 100 | $21.02 | $2,102 | 200 Direct | -33.33% | Disposed | 77.7% (price as of 2026-10-02) |
| Feb. 8, 2021 | IDYA | S 10b5-1 | 200 | $21.00 | $4,200 | 0 Direct | -100.00% | Disposed | 77.9% (price as of 2026-10-02) |
| Feb. 8, 2021 | IDYA | M | 300 | · | · | 34,714 Direct | -0.86% | Disposed | (price as of 2026-10-02) |
| Jan. 26, 2021 | IDYA | M | 377 | $4.62 | $1,742 | 1,378 Direct | +37.66% | Acquired | 708.7% (price as of 2026-10-02) |
| Jan. 26, 2021 | IDYA | M | 1,123 | $6.98 | $7,839 | 2,501 Direct | +81.49% | Acquired | 435.2% (price as of 2026-10-02) |
| Jan. 26, 2021 | IDYA | S 10b5-1 | 1,701 | $18.30 | $31,128 | 800 Direct | -68.01% | Disposed | 104.2% (price as of 2026-10-02) |
| Jan. 26, 2021 | IDYA | S 10b5-1 | 800 | $18.79 | $15,032 | 0 Direct | -100.00% | Disposed | 98.8% (price as of 2026-10-02) |
| Jan. 26, 2021 | IDYA | M | 377 | · | · | 61,760 Direct | -0.61% | Disposed | (price as of 2026-10-02) |
| Jan. 26, 2021 | IDYA | M | 1,123 | · | · | 35,014 Direct | -3.11% | Disposed | (price as of 2026-10-02) |
| June 17, 2020 | IDYA | M | 373 | $4.62 | $1,723 | 373 Direct | · | Acquired | 708.7% (price as of 2026-10-02) |
| June 17, 2020 | IDYA | S 10b5-1 | 373 | $19.91 | $7,426 | 0 Direct | -100.00% | Disposed | 87.6% (price as of 2026-10-02) |
| June 17, 2020 | IDYA | M | 373 | · | · | 62,137 Direct | -0.60% | Disposed | (price as of 2026-10-02) |
| June 16, 2020 | IDYA | M | 3,887 | $4.62 | $17,958 | 3,887 Direct | · | Acquired | 708.7% (price as of 2026-10-02) |
| June 16, 2020 | IDYA | M | 2,863 | $6.98 | $19,984 | 6,750 Direct | +73.66% | Acquired | 435.2% (price as of 2026-10-02) |
| June 16, 2020 | IDYA | S 10b5-1 | 6,750 | $14.93 | $100,778 | 0 Direct | -100.00% | Disposed | 150.2% (price as of 2026-10-02) |
| June 16, 2020 | IDYA | M | 3,887 | · | · | 62,510 Direct | -5.85% | Disposed | (price as of 2026-10-02) |
| June 16, 2020 | IDYA | M | 2,863 | · | · | 36,137 Direct | -7.34% | Disposed | (price as of 2026-10-02) |
| June 2, 2020 | IDYA | S 10b5-1 | 408 | $8.55 | $3,488 | 437 Direct | -48.28% | Disposed | 337.0% (price as of 2026-10-02) |
| June 2, 2020 | IDYA | S 10b5-1 | 333 | $9.73 | $3,240 | 104 Direct | -76.20% | Disposed | 284.0% (price as of 2026-10-02) |
| June 2, 2020 | IDYA | S 10b5-1 | 104 | $10.11 | $1,051 | 0 Direct | -100.00% | Disposed | 269.5% (price as of 2026-10-02) |
| Feb. 21, 2020 | IDYA | A | 40,000 | · | · | 40,000 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.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Feb. 3, 2025 | ZNTL | Stock Option (Right to Buy) | Common Stock | $1.68 | Feb. 2, 2035 | 124,714 | Acquired |
| Feb. 1, 2024 | ZNTL | Stock Option (Right to Buy) | Common Stock | $11.69 | Jan. 31, 2034 | 141,000 | Acquired |
| Jan. 2, 2024 | ZNTL | Stock Option (Right to Buy) | Common Stock | $15.99 | Jan. 2, 2034 | 60,000 | Acquired |
| Feb. 24, 2021 | IDYA | Stock Option (right to buy) | Common Stock | $19.52 | Feb. 23, 2031 | 45,000 | Acquired |
| Feb. 10, 2021 | IDYA | Stock Option (right to buy) | Common Stock | $6.98 | Dec. 11, 2028 | 596 | Disposed |
| Feb. 9, 2021 | IDYA | Stock Option (right to buy) | Common Stock | $6.98 | Dec. 11, 2028 | 1,104 | Disposed |
| Feb. 8, 2021 | IDYA | Stock Option (right to buy) | Common Stock | $6.98 | Dec. 11, 2028 | 300 | Disposed |
| Jan. 26, 2021 | IDYA | Stock Option (right to buy) | Common Stock | $4.62 | June 20, 2028 | 377 | Disposed |
| Jan. 26, 2021 | IDYA | Stock Option (right to buy) | Common Stock | $6.98 | Dec. 11, 2028 | 1,123 | Disposed |
| June 17, 2020 | IDYA | Stock Option (right to buy) | Common Stock | $4.62 | June 20, 2028 | 373 | Disposed |
| June 16, 2020 | IDYA | Stock Option (right to buy) | Common Stock | $4.62 | June 20, 2028 | 3,887 | Disposed |
| June 16, 2020 | IDYA | Stock Option (right to buy) | Common Stock | $6.98 | Dec. 11, 2028 | 2,863 | Disposed |
| Feb. 21, 2020 | IDYA | Stock Option (right to buy) | Common Stock | $6.92 | Feb. 20, 2030 | 40,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 6 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Jan. 3, 2024 | ZNTL | Common Stock | 16,313 | Direct |
| Jan. 3, 2024 | ZNTL | Stock Option (Right to Buy) | 215,000 | Direct |
| Jan. 3, 2024 | ZNTL | Stock Option (Right to Buy) | 23,687 | Direct |
| May 22, 2019 | IDYA | Stock Option (right to buy) | · | Direct |
| May 22, 2019 | IDYA | Stock Option (right to buy) | · | Direct |
| May 22, 2019 | IDYA | Stock Option (right to buy) | · | 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 |
|---|---|---|---|---|---|---|---|---|
| 2025 | $153,553 | · | $547,602 | $64,807 | · | · | $463,387 | $1,229,349 |
| 2024 | $484,397 | · | $2,287,890 | $1,793,146 | $205,632 | · | $17,757 | $4,788,822 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.