Zentalis Pharmaceuticals, Inc.
ZNTL- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001725160
In the last 90 days, Zentalis Pharmaceuticals, Inc. insiders filed 1 open-market purchase and 0 sales; 114 institutions reported holding it in 13F filings for Q2 2026, worth $228.9M in total; no superinvestor holds it.
Holders of 5% or more of ZNTL
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Zentalis Pharmaceuticals, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Matrix Capital Management Company, LP | 13D/A | 9.98%6.46M shares | – | Dec 15, 20251 filing | Dec 15, 2025 | SEC |
| Walters William T | 13G/A | 9.90%7.05M shares | +0.80 ppfrom 9.10% | Dec 10, 20244 filings | Jan 31, 2025 | SEC |
| 5AM Opportunities II (GP), LLC | 13G | 6.40%4.84M shares | New | Dec 30, 20251 filing | Dec 30, 2025 | SEC |
| Barclays PLC | 13G | 5.32%3.84M shares | New | Nov 12, 20251 filing | Nov 12, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
15 Schedule 13D and 13G filings on Zentalis Pharmaceuticals, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Dec 30, 20254:10 PM ET | 5AM Opportunities II (GP), LLCand 6 others | 13G | 6.40%4.84M shares | New | Dec 18, 2025 | SEC |
| Dec 15, 20255:16 PM ET | Matrix Capital Management Company, LPand 1 other | 13D/A | 9.98%6.46M shares | – | Dec 15, 2025 | SEC |
| Nov 12, 20254:06 PM ET | Barclays PLC | 13G | 5.32%3.84M shares | New | Sep 30, 2025 | SEC |
| Oct 14, 20254:00 PM ET | Millennium Management LLCand 2 others | 13G/A | 1.30%902.5K shares | −4.00 ppfrom 5.30%Below 5% | Sep 30, 2025 | SEC |
| Jul 16, 20257:02 PM ET | BlackRock, Inc. | 13G/A | 2.20%1.61M shares | –Below 5% | Jun 30, 2025 | SEC |
| May 14, 20253:51 PM ET | Eventide Asset Management, LLCand 2 others | 13G/A | 0.00%0 shares | 0.00 ppfrom 0.00%Below 5% | Mar 31, 2025 | SEC |
| May 13, 20255:30 PM ET | Eventide Asset Management, LLCand 2 others | 13G/A | 0.00%0 shares | −6.28 ppfrom 6.28%Below 5% | Mar 31, 2025 | SEC |
| Feb 14, 202512:13 PM ET | Eventide Asset Management, LLCand 2 others | 13G/A | 6.28%4.48M shares | – | Dec 31, 2024 | SEC |
| Feb 4, 20254:06 PM ET | Millennium Management LLCand 2 others | 13G | 5.30%3.78M shares | New | Jan 29, 2025 | SEC |
| Jan 31, 202512:44 PM ET | Walters William Tand 2 others | 13G/A | 9.90%7.05M shares | +0.80 ppfrom 9.10% | Jan 29, 2025 | SEC |
| Jan 31, 202510:09 AM ET | Vanguard Group Inc | 13G/A | 4.59%3.27M shares | –Below 5% | Dec 31, 2024 | SEC |
| Jan 22, 202510:08 AM ET | Walters William Tand 2 others | 13G/A | 9.10%6.50M shares | +2.10 ppfrom 7.00% | Jan 21, 2025 | SEC |
| Jan 8, 20256:49 PM ET | Walters William Tand 2 others | 13G/A | 7.00%5.00M shares | +1.40 ppfrom 5.60% | Jan 8, 2025 | SEC |
| Dec 10, 202412:42 PM ET | Walters William Tand 2 others | 13G | 5.60%4.00M shares | New | Dec 3, 2024 | SEC |
| Dec 6, 202411:44 AM ET | FMR LLCand 1 other | 13G/A | 0.20%175.9K shares | –Below 5% | Nov 29, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Zentalis Pharmaceuticals, Inc. shares.
No Form 144 notices for Zentalis Pharmaceuticals, Inc. are on file.