14 insiders reported 29 Form 4 transactions for Zentalis Pharmaceuticals, Inc. (ZNTL) over the past 18 months (most recent 2026-08-19). Recent activity: WALTERS GROUP (10% Owner) Buy 4.3M shares, WALTERS WILLIAM THURMAN (10% Owner) Buy 4.3M shares, WALTERS SUSAN BERKLEY (10% Owner) Buy 4.3M shares, Myers Scott Dunseth (Director) Buy 57,100 shares, Walker Luke Nathaniel (Director) Buy 57,100 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-19 | WALTERS GROUP | 10% Owner | Buy | 4.3M | $15.2M |
| 2026-08-19 | WALTERS WILLIAM THURMAN | 10% Owner | Buy | 4.3M | $15.2M |
| 2026-08-19 | WALTERS SUSAN BERKLEY | 10% Owner | Buy | 4.3M | $15.2M |
| 2026-06-18 | Myers Scott Dunseth | Director | Buy | 57,100 | $0 |
| 2026-06-18 | Walker Luke Nathaniel | Director | Buy | 57,100 | $0 |
| 2026-06-18 | Johnson David Michael | Director | Buy | 57,100 | $0 |
| 2026-06-18 | Skvarka Jan | Director | Buy | 57,100 | $0 |
| 2026-06-18 | Kariuki Enoch | Director | Buy | 57,100 | $0 |
| 2026-05-27 | Campbell Shannon | Director | Buy | 114,200 | $0 |
| 2026-02-10 | Vultaggio Vincent | PAO and PFO | Sell | 6,894 | $16,683 |
| 2026-02-10 | EASTLAND JULIA MARIE | CEO & President | Sell | 889 | $2,125 |
| 2026-02-10 | Vultaggio Vincent | PAO and PFO | Sell | 29,951 | $72,781 |
| 2026-02-10 | EASTLAND JULIA MARIE | CEO & President | Sell | 7,866 | $19,114 |
| 2026-02-10 | Bruns Ingmar | Chief Medical Officer | Sell | 2,962 | $7,198 |
| 2026-02-10 | Bruns Ingmar | Chief Medical Officer | Sell | 335 | $801 |
| 2026-02-10 | Vultaggio Vincent | PAO and PFO | Sell | 3,379 | $8,076 |
| 2026-02-04 | Vultaggio Vincent | PAO and PFO | Sell | 2,540 | $6,477 |
| 2026-02-04 | Vultaggio Vincent | PAO and PFO | Sell | 556 | $1,401 |
| 2026-01-08 | WALTERS GROUP | Insider | Buy | 6.5M | $7.8M |
| 2026-01-08 | WALTERS SUSAN BERKLEY | Insider | Buy | 6.5M | $7.8M |
| 2026-01-08 | WALTERS WILLIAM THURMAN | Insider | Buy | 6.5M | $7.8M |
| 2025-12-15 | Matrix Capital Management Company, LP | Insider | Sell | 7.5M | $10.0M |
| 2025-12-15 | GOEL DAVID E. | Insider | Sell | 7.5M | $10.0M |
| 2025-06-18 | Myers Scott Dunseth | Director | Buy | 57,603 | $0 |
| 2025-06-18 | Walker Luke Nathaniel | Director | Buy | 57,603 | $0 |
Source: SEC Form 4 filings · as of 2026-08-19