It has been a mixed year for Zentalis Pharmaceuticals, Inc. insiders: $22.9 million bought by one person and $10.1 million sold by four, so more buying than selling overall.
Biggest single buyer: WALTERS WILLIAM THURMAN, 10% Owner, with roughly $15.2 million.
Zooming out by quarter: Last full quarter: net buying by insiders. Insiders bought in 4 of the last 7 full quarters. Big money check: 114 institutions held ZNTL as of Q2 2026, and more funds bought than sold.
| Filed | Insider | Role | Type | Shares | Price | Value | Source |
|---|---|---|---|---|---|---|---|
| Aug 19, 2026 | WALTERS WILLIAM THURMAN | 10% Owner | Buy | 4,335,000 | $3.50 | $15.2M | SEC |
| Feb 10, 2026 | Bruns Ingmar | Executive Officer | Sell | 2,962 | $2.43 | $7K | SEC |
| Feb 10, 2026 | Bruns Ingmar | Executive Officer | Sell | 335 | $2.39 | $801 | SEC |
| Feb 10, 2026 | Vultaggio Vincent | Officer | Sell | 29,951 | $2.43 | $73K | SEC |
| Feb 10, 2026 | Vultaggio Vincent | Officer | Sell | 6,894 | $2.42 | $17K | SEC |
| Feb 10, 2026 | Vultaggio Vincent | Officer | Sell | 3,379 | $2.39 | $8K | SEC |
| Feb 10, 2026 | EASTLAND JULIA MARIE | CEO | Sell | 7,866 | $2.43 | $19K | SEC |
| Feb 10, 2026 | EASTLAND JULIA MARIE | CEO | Sell | 889 | $2.39 | $2K | SEC |
| Feb 4, 2026 | Vultaggio Vincent | Officer | Sell | 556 | $2.52 | $1K | SEC |
| Feb 4, 2026 | Vultaggio Vincent | Officer | Sell | 2,540 | $2.55 | $6K | SEC |
| Jan 8, 2026 | WALTERS WILLIAM THURMAN | 10% Owner | Buy | 6,459,973 | $1.20 | $7.8M | SEC |
| Dec 15, 2025 | GOEL DAVID E. | 10% Owner | Sell | 7,500,000 | $1.33 | $10.0M | SEC |
| Apr 30, 2025 | Myers Scott Dunseth | Director | Buy | 21,000 | $1.40 | $29K | SEC |
| Feb 12, 2025 | Bruns Ingmar | Executive Officer | Buy | 20,000 | $2.28 | $46K | SEC |
| Feb 5, 2025 | Lackner Mark | Executive Officer | Sell | 14,368 | $1.71 | $25K | SEC |
In the last 12 months Zentalis Pharmaceuticals, Inc. insiders made open-market purchases worth about $22.9 million and sales worth about $10.1 million. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
The most recent open-market insider trade in ZNTL was filed on 2026-08-19.
114 investment managers reported holding ZNTL in SEC Form 13F filings for Q2 2026.
No congressional trades in ZNTL were reported in the past two years. The full list is free on CapitalSnitch.
Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1). Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).