Form
SCHEDULE 13G
Passive or exempt beneficial ownership filing.
5AM Opportunities II (GP), LLC - 18 Dec 2025 SCHEDULE 13G Report for Zentalis Pharmaceuticals, Inc. Common Stock, $0.001 par value per share (ZNTL)
- Filing manager
- 5AM Opportunities II (GP), LLC
- Reporting owner
- Andrew J. Schwab
- Beneficially owned shares
- 4,838,571 shares
- Large-stake signal
-
Ownership
6.4%Beneficial ownership of this reported class.
Shares
4,838,571 sharesShares beneficially owned as disclosed.
Event date
18 Dec 2025Date tied to the ownership event or amendment.
Accepted by SEC
30 Dec 2025EDGAR acceptance date.
How to read this large-stake filing
- Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
- Compare this filing with the holder history and issuer page before treating the percentage as a current position.
- Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
- Class ownership
- 6.4%
- Symbol
- ZNTL
- Shares outstanding
- 75,602,672 shares
- SEC form
- SCHEDULE 13G
- Accepted by SEC
- 30 Dec 2025, 16:10:44 UTC
- Event date
- 18 Dec 2025
- Source filing
- View source filing
Ownership signal
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Subject security
Names, identifiers, and filing context for this profile.
2 source fields
Source evidence
Original filing metadata and source links for verification.
4 source fields
Key filing fact
5AM Opportunities II (GP), LLC disclosed 6.4% ownership in Zentalis Pharmaceuticals, Inc. Common Stock, $0.001 par value per share (ZNTL) on 18 Dec 2025.
Key facts
- 5AM Opportunities II (GP), LLC filed SCHEDULE 13G for Zentalis Pharmaceuticals, Inc. Common Stock, $0.001 par value per share (ZNTL).
- Disclosed ownership: 6.4%.
- Date of event: 18 Dec 2025.
Change
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 30 Dec 2025, 16:10.
Research use
- This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
- Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.
Evidence
Backed by Schedule 13D/13G
View source filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Disclosed reporting parties (7)
Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares owned | Sole voting power | Shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| 5AM Opportunities II (GP), LLC | 5.2% | 3,947,913 | 0 | 3,947,913 | /s/ Andrew J. Schwab | By Andrew J. Schwab, Managing Member | |
| 5AM Opportunities II, L.P. | 5.2% | 3,947,913 | 0 | 3,947,913 | /s/ Andrew J. Schwab | By 5AM Opportunities II (GP), LLC, its General Partner, By Andrew J. Schwab, Managing Member | |
| 5AM Opportunities (GP), LLC | 1.2% | 890,658 | 0 | 890,658 | /s/ Andrew J. Schwab | By Andrew J. Schwab, Managing Member | |
| 5AM Opportunities Master Fund L.P. | 1.2% | 890,658 | 0 | 890,658 | /s/ Andrew J. Schwab | By 5AM Opportunities II (GP), LLC, its General Partner, By Andrew J. Schwab, Managing Member | |
| Andrew J. Schwab | 6.4% | 4,838,571 | 0 | 4,838,571 | /s/ Andrew J. Schwab | Andrew J. Schwab | |
| Kush Parmar | 6.4% | 4,838,571 | 0 | 4,838,571 | /s/ Kush Parmar | Kush Parmar | |
| Anna Yaeger | 1.2% | 890,658 | 0 | 890,658 | /s/ Anna Yaeger | Anna Yaeger |
CIK / CUSIP context first