Zentalis Pharmaceuticals, Inc. (ZNTL) Insider Ownership

Historic Insider Ownership Trends

Through the 90-day period concluding January 10, 2026, Zentalis Pharmaceuticals's top three insider stakeholders include TenPercentOwner Group Walters (13.51Mn shares), TenPercentOwner Capital Management Company, Lp Matrix (6.46Mn shares), President & Ceo Anthony Y Sun (1.28Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
Group Walters 13,509,973 08 Jan, 2026
Capital Management Company, Lp Matrix 6,459,973 15 Dec, 2025
Anthony Y Sun President & Ceo 1,279,239 05 Apr, 2022
Andrea Paul Chief Legal Officer 1,070,784 05 Feb, 2025
Kevin D. Bunker Chief Scientific Officer 849,931 21 Dec, 2023
Cam Gallagher President And Interim Cfo 633,680 31 May, 2024
Mark Lackner Chief Scientific Officer 512,856 05 Feb, 2025
Kimberly Blackwell Chief Executive Officer 484,145 05 Feb, 2024
Melissa B, Epperly Chief Financial Officer 451,449 12 Feb, 2024
Diana Hausman Chief Medical Officer 373,876 09 May, 2024
Scott Dunseth Myers 338,795 18 Jun, 2025
David Michael Johnson 250,421 18 Jun, 2025
Jan Skvarka 207,154 18 Jun, 2025
Vincent Vultaggio Pao And Interim Pfo 189,826 05 Feb, 2025
Luke Nathaniel Walker 144,284 18 Jun, 2025
Enoch Kariuki 137,365 18 Jun, 2025
Carrie Brownstein Chief Medical Officer 105,685 06 Oct, 2023
Julia Marie Eastland Ceo & President 87,888 05 Feb, 2025
Iris Roth Chief Operating Officer 52,500 02 Mar, 2023
Ingmar Bruns Chief Medical Officer 36,629 12 Feb, 2025
Alexis Pinto Chief Legal Officer 22,240 14 Feb, 2022
Dimitris Voliotis Svp And Clinical Development 15,978 14 Feb, 2022

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
31 Dec, 2025 Group Walters Common Stock A 6,459,973 $1.20 13,509,973 D P
15 Dec, 2025 Capital Management Company, Lp Matrix Common Stock, par value $0.001 per share D 7,500,000 $1.33 6,459,973 I S
17 Jun, 2025 Scott Dunseth Myers Common Stock A 57,603 $0.00 338,795 D A
17 Jun, 2025 Luke Nathaniel Walker Common Stock A 57,603 $0.00 144,284 D A
17 Jun, 2025 David Michael Johnson Common Stock A 57,603 $0.00 250,421 D A
17 Jun, 2025 Jan Skvarka Common Stock A 57,603 $0.00 207,154 D A
17 Jun, 2025 Enoch Kariuki Common Stock A 57,603 $0.00 137,365 D A
17 Jun, 2025 Enoch Kariuki - - 137,365 D
30 Apr, 2025 Scott Dunseth Myers - - 281,192 D
30 Apr, 2025 Scott Dunseth Myers Common Stock A 21,000 $1.40 281,192 D P
06 Feb, 2025 Ingmar Bruns Common Stock A 20,000 $2.28 36,629 D P
03 Feb, 2025 Julia Marie Eastland Common Stock A 59,388 $0.00 87,888 D A
03 Feb, 2025 Mark Lackner Common Stock D 14,368 $1.71 512,856 D S
03 Feb, 2025 Mark Lackner Common Stock A 335,907 $0.00 527,224 D A
03 Feb, 2025 Ingmar Bruns Common Stock A 16,629 $0.00 16,629 D A
03 Feb, 2025 Ingmar Bruns - - 16,629 D
03 Feb, 2025 Andrea Paul Common Stock A 934,041 $0.00 1,084,014 D A
03 Feb, 2025 Andrea Paul Common Stock D 13,230 $1.71 1,070,784 D S
03 Feb, 2025 Andrea Paul - - 1,070,784 D
03 Feb, 2025 Vincent Vultaggio Common Stock D 2,615 $1.71 189,826 D S