ZNTL insider buying and SEC filings, explained
Zentalis Pharmaceuticals, Inc. · CIK 1725160
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$22.9M
Insiders who bought
1
Sold (not marked 10b5-1)
$10.0M
Planned sales (10b5-1)
$105K
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Aug 14, 2026 | Purchase (code P) | William Thurman Walters (10% owner) bought 4,335,000 shares at $3.50 ($15.2M), reported as a purchase (code P). Holdings up 32% to 17,844,973 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 2 other reporting owners. | SEC filing Filed Aug 19, 2026 |
| Feb 6–10, 2026 | Planned (10b5-1) | Vincent Vultaggio (PAO and PFO) sold 40,224 shares between Feb 6 and Feb 10 at about $2.42 ($98K), marked as a 10b5-1 plan trade. Holdings down 22% to 146,506 shares. | SEC filing Filed Feb 10, 2026 |
| Feb 6–9, 2026 | Sale | Ingmar Bruns (Chief Medical Officer) sold 3,297 shares between Feb 6 and Feb 9 at about $2.43 ($8K). Holdings down 9% to 33,332 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 10, 2026 |
| Feb 6–9, 2026 | Sale | Julia Marie Eastland (CEO and Director) sold 8,755 shares between Feb 6 and Feb 9 at about $2.43 ($21K). Holdings down 10% to 79,133 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 10, 2026 |
| Feb 2–3, 2026 | Planned (10b5-1) | Vincent Vultaggio (PAO and PFO) sold 3,096 shares between Feb 2 and Feb 3 at about $2.54 ($8K), marked as a 10b5-1 plan trade. Holdings down 2% to 186,730 shares. | SEC filing Filed Feb 4, 2026 |
| Dec 31, 2025 | Purchase (code P) | William Thurman Walters (10% owner) bought 6,459,973 shares at $1.20 ($7.8M), reported as a purchase (code P). Holdings up 92% to 13,509,973 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 2 other reporting owners. | SEC filing Filed Jan 8, 2026 |
| Dec 15, 2025 | Sale | David E. Goel (10% owner) sold 7,500,000 shares indirectly at $1.33 ($10.0M). Indirect holdings down 54% to 6,459,973 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 1 other reporting owner. | SEC filing Filed Dec 15, 2025 |
11 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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