Mark Lackner
CIK 1777413 · Chief Scientific Officer · last filed 2025-02-05
Mark Lackner is a Chief Scientific Officer who has filed 12 SEC Form 4 insider transactions across 2 companies since 2020. The most recent filing, for ZNTL, was dated Feb 5, 2025. Across all open-market trades the lifetime net is −$260.8K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.4M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$2.44M
2
12
-$260.8K
Holdings By Company
Recent Filings
12 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-02-05 | ZNTL | Mixed | +321,539 | -$24.6K | EDGAR |
| 2025-02-03 | ZNTL | Notice (144) | −14,368 | -$24.6K | EDGAR |
| 2025-01-03 | ZNTL | Sell (S) | −4,411 | -$13.8K | EDGAR |
| 2024-02-05 | ZNTL | Mixed | +139,415 | -$18.3K | EDGAR |
| 2024-02-02 | ZNTL | Notice (144) | −1,585 | -$18.3K | EDGAR |
| 2024-01-03 | ZNTL | Grant (A) | +40,000 | $0 | EDGAR |
| 2021-02-26 | IDYA | Grant (A) | — | $0 | EDGAR |
| 2021-02-10 | IDYA | Mixed | — | -$28.1K | EDGAR |
| 2021-01-28 | IDYA | Mixed | −1,001 | -$36.6K | EDGAR |
| 2020-06-18 | IDYA | Mixed | — | -$68.5K | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.