ZNTLHealthcareMicro-Cap
Zentalis Pharmaceuticals, Inc. Insider Trading Activity
Every SEC Form 4 insider transaction reported for Zentalis Pharmaceuticals, Inc. (ZNTL), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud Research Team · SEC Form 4 & insider trading data analysts
Last updated:
Quick Answer
Are ZNTL insiders buying or selling?
Zentalis Pharmaceuticals, Inc. insiders reported 13 open-market buys ($145.0M) and 140 sells ($122.1M) across 153 Form 4 filings — a net buying position of $23.0M.
Source: SEC EDGAR Form 4
Key Statistics (as of Aug 19, 2026)
Total Form 4 filings
153
SEC EDGAR
Insider filers
21
Insider buys (13)
$145.0M
Insider sells (140)
$122.1M
Insider sentiment
Net buyingNet insider flow of $23.0M in net buying. 1 insider buy in the last 90 days.
Recent ZNTL insider transactions
| Date | Insider | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 19, 2026 | WALTERS GROUP | 10% Owner | Purchase | 4.3M | $3.50 | $15.2M |
| Feb 11, 2026 | Ingmar Bruns | Chief Medical Officer | Sale | 3.3K | $2.43 | $8.0K |
| Feb 11, 2026 | Vincent Vultaggio | PAO and PFO | Sale | 40.2K | $2.43 | $97.6K |
| Feb 11, 2026 | Julia Marie Eastland | CEO & President | Sale | 8.8K | $2.43 | $21.2K |
| Feb 5, 2026 | Vincent Vultaggio | PAO and PFO | Sale | 3.1K | $2.54 | $7.9K |
| Jan 8, 2026 | WALTERS WILLIAM THURMAN | 10% Owner | Purchase | 6.5M | $1.20 | $7.8M |
| Dec 15, 2025 | Matrix Capital Management Company, LP | 10% Owner | Sale | 7.5M | $1.33 | $10.0M |
| Apr 30, 2025 | Scott Dunseth Myers | Director | Purchase | 21.0K | $1.40 | $29.4K |
| Feb 12, 2025 | Ingmar Bruns | Chief Medical Officer | Purchase | 20.0K | $2.28 | $45.7K |
| Feb 5, 2025 | Vincent Vultaggio | PAO and Interim PFO | Sale | 2.6K | $1.71 | $4.5K |
| Feb 5, 2025 | Mark Lackner | Chief Scientific Officer | Sale | 14.4K | $1.71 | $24.6K |
| Feb 5, 2025 | Andrea Paul | Chief Legal Officer | Sale | 13.2K | $1.71 | $22.6K |
| Feb 4, 2025 | Jan Skvarka | Director | Purchase | 60.0K | $1.72 | $103.4K |
| Feb 4, 2025 | Luke Nathaniel Walker | Director | Purchase | 14.2K | $1.76 | $25.0K |
| Feb 4, 2025 | Julia Marie Eastland | CEO & President | Purchase | 28.5K | $1.73 | $49.3K |
| Jan 3, 2025 | Mark Lackner | Chief Scientific Officer | Sale | 4.4K | $3.12 | $13.8K |
| Oct 4, 2024 | Vincent Vultaggio | Principal Accounting Officer | Sale | 1.6K | $3.18 | $5.1K |
| May 31, 2024 | Cam Gallagher | President, Interim CFO | Sale | 9.6K | $11.98 | $115.0K |
| May 9, 2024 | Diana Hausman | Chief Medical Officer | Sale | 3.4K | $12.62 | $42.4K |
| Feb 13, 2024 | Melissa B, Epperly | Chief Financial Officer | Sale | 2.6K | $11.44 | $29.4K |
| Feb 13, 2024 | Cam Gallagher | President | Sale | 1.2K | $11.44 | $13.4K |
| Feb 6, 2024 | Mark Lackner | Chief Scientific Officer | Sale | 1.6K | $11.54 | $18.3K |
| Feb 6, 2024 | Andrea Paul | Chief Legal Officer | Sale | 3.3K | $11.54 | $38.2K |
| Feb 6, 2024 | Cam Gallagher | President | Sale | 11.6K | $11.54 | $133.3K |
| Feb 6, 2024 | Melissa B, Epperly | Chief Financial Officer | Sale | 8.7K | $11.54 | $100.0K |
Showing the 25 most recent of 153 Form 4 filings for Zentalis Pharmaceuticals, Inc..
Most active ZNTL insiders
- Cam Gallagher41 filings
- Kevin D. Bunker36 filings
- SUN ANTHONY Y21 filings
- Melissa B, Epperly17 filings
- Kimberly Blackwell5 filings
Ask anything about ZNTL insider activity
Use Trabud's AI agent to query Zentalis Pharmaceuticals, Inc.'s Form 4 history in plain English — "Show me ZNTL CEO purchases this year" or compare it against any other ticker.
Open the AI agentZNTL insider trading FAQ
Are Zentalis Pharmaceuticals, Inc. insiders buying or selling?
Across 153 SEC Form 4 filings, Zentalis Pharmaceuticals, Inc. (ZNTL) insiders reported 13 open-market purchases totaling $145.0M and 140 sales totaling $122.1M. That is a net buying position of $23.0M.
How many insiders trade ZNTL stock?
21 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for Zentalis Pharmaceuticals, Inc.. The most recent filing was accepted on Aug 19, 2026.
Where does Trabud get ZNTL insider trading data?
All ZNTL insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.
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