$ZNTL

$2.07 -$0.14 (6.33%) Close

$ZNTL Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 71.7M shares outstanding

Who owns ZNTL?

By type of holder

Institutions 65.6% Insiders 34.4% Everyone else 0.0%

Concentration Top 10 holders own 36.0%

5AM Venture Management, LLC 5.5% · BlackRock, Inc. 5.2%

Institutional ownership

65.6%

+4.8 pts vs last qtr

Institutional holders

111

+9 vs last qtr

Net shares bought

+3.5M

by institutions in Q2 2026

New / sold out

31 / 22

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

BlackRock, Inc. +2.5M
Orbimed Advisors LLC NEW +1.4M

Biggest sellers in Q2 2026

D. E. Shaw & Co., Inc. −937.5K
Millennium Management LLC −625.5K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Zentalis Pharmaceuticals Inc in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2019–FY2025

+1184.1%

+53.03% a year

Each share's claim on the business

−92.2%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$9.98M vs $249M

over 7 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years35% 3–5 years15% 1–3 years30% Under 1 year20%

Quarterly turnover

20.8%

of institutional shares changed hands

Top 10 managers, median time held

3 years

Super Investors

Investment managers reporting ZNTL on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
5V 5AM Venture Management, LLC	3.9M	5.51%	Unchanged	2023	6.7%
Shares held by quarter Peak holding3.9M (Q4'25) Change over 8 quarters+3.5M Share of the company5.510% 5AM Venture Management, LLC's full portfolio →
B BlackRock, Inc.	3.8M	5.24%	+2.5M (+195.6%)	≤2021	0.0%
Shares held by quarter Peak holding4.8M (Q3'24) Change over 8 quarters−1.0M Share of the company5.240% BlackRock, Inc.'s full portfolio →

5AM Venture Management, LLC

3.9M

% of company

5.51%

Change vs last qtr

Unchanged

Held since

2023

BlackRock, Inc.

3.8M

% of company

5.24%

Change vs last qtr

+2.5M (+195.6%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Zentalis Pharmaceuticals Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting ZNTL on Form N-PORT; together they hold 12.6% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$10.6M	2.2M	3.05%	0.00%	June 30, 2026
IR iShares Russell 2000 ETF iShares Trust	$6.01M	1.2M	1.73%	0.01%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$10.6M

% of company

3.05%

% of the fund

0.00%

As of

June 30, 2026

iShares Russell 2000 ETF

iShares Trust

Position value

$6.01M

% of company

1.73%

% of the fund

0.01%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Zentalis Pharmaceuticals Inc and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
PA Paul Andrea Insider	1.1M	1.49%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company1.490% Paul Andrea's insider activity →
LM Lackner Mark Insider	512.9K	0.72%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.720% Lackner Mark's insider activity →

Paul Andrea

Insider

1.1M

% of company

1.49%

Change vs last qtr

—

Held since

—

Lackner Mark

Insider

512.9K

% of company

0.72%

Change vs last qtr

—

Held since

—

9 more holders behind a free account

See every insider and 5%+ holder of Zentalis Pharmaceuticals Inc.

Comments