Zentalis Pharmaceuticals, Inc. (ZNTL)
Nasdaq: ZNTL · Pharmaceutical Preparations · San Diego, CA · filing with the SEC since 2017
Who owns Zentalis Pharmaceuticals, Inc.
As filed with the SECHolders of 5% or more
4
Walters William T holds 18.8% of Common Stock, $0.001 par value per share, as its SCHEDULE 13G/A filed Aug 19, 2026 says.
Directors and officers
12
report now, of 25 people on the record since 2020. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 4 named at left.
Holders of 5% or moreshare of the class, as filed
Walters William T
SCHEDULE 13G/A · filed Aug 19, 2026 · Common Stock, $0.001 par value per share · 19.7% in Jan 5, 2026
Walters William T
SCHEDULE 13G/A · filed Jan 31, 2025 · Common Stock, $0.001 par value per share · 9.1% in Jan 22, 2025
Andrew J. Schwab
SCHEDULE 13G · filed Dec 30, 2025 · Common Stock, $0.001 par value per share
Squadron Master Fund LP
SCHEDULE 13G · filed Mar 3, 2026 · Common Stock,$0.001 par value per share
The Vanguard Group
SCHEDULE 13G/A · filed Jan 31, 2025 · Common Stock · reported falling below 5%
Blackrock, Inc.
SCHEDULE 13G/A · filed Oct 27, 2026 · Common Stock · reported falling below 5%, from 5.2% in Jul 30, 2026
Barclays PLC
SCHEDULE 13G/A · filed Aug 13, 2026 · COMMON-STOCK · reported falling below 5%, from 5.32% in Nov 12, 2025
Millennium Management LLC
SCHEDULE 13G/A · filed Oct 14, 2025 · Common Stock, par value $0.001 per share · reported falling below 5%, from 5.3% in Feb 4, 2025
Fmr LLC
SCHEDULE 13G/A · filed Dec 6, 2024 · COMMON STOCK · reported falling below 5%
Matrix Capital Management Company, LP
SCHEDULE 13D/A · filed Jan 2, 2026 · Common Stock, par value $0.001 per share · reported falling below 5%, from 9.98% in Dec 15, 2025
Eventide Asset Management, LLC
SCHEDULE 13G/A · filed May 14, 2025 · Common Stock, $0.001 par value per share · reported falling below 5%, from 0% in May 13, 2025
What ZNTL reports owning in othersstakes of 5% or more, and other ties
6 subsidiaries in 2 countries, from the list filed with the 10-K filed Feb 27, 2024.
Insider tradesForm 4
10sales
0purchases
5sales on a scheduled plan
4people selling
$10.1Msold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Oct 1, 2025 to Oct 1, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Oct 1, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window5 of 36 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Goel David E. | director | 1 | $10.0M | 0 | 0 | $0 |
| Vultaggio Vincent | PAO and PFO | 5 | $100,000 | 5 | 0 | $0 |
| Walters William Thurman | 10% owner | 0 | $0 | 0 | 2 | $22.9M |
| Eastland Julia Marie | CEO & President | 2 | $0 | 0 | 0 | $0 |
| Bruns Ingmar | Chief Medical Officer | 2 | $0 | 0 | 0 | $0 |