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Nasdaq · CIK 0001725160

ZNTL Zentalis Pharmaceuticals, Inc.

Insider trading from SEC Form 4. Last filing 12 d ago. Close $2.64 on Oct 9, 2026, +106% from the 52-week low and -60% from the high.

Zentalis Pharmaceuticals, Inc. (ZNTL) has 26 SEC Form 4 filings on file from 12 insiders, the latest filed on Oct 1, 2026. No insider bought or sold on the open market in the last 90 days; rows filed in that time are grants, exercises, tax withholding and other transactions that carry no view on the price.

9 open-market trades have been scored at ZNTL. The newest: Ingmar Bruns (Chief Medical Officer) sold $7,998 of stock on Feb 6, 2026, filed Feb 10, 2026, scored 30 (weak). The largest of the 9 shown: Matrix Capital Management Company, LP (10% owner) sold $10.0M on Dec 15, 2025, scored 57 (moderate). 3 insiders sold within 14 days of each other around Feb 6, 2026.

ZNTL closed at $2.64 on Oct 9, 2026, 106% above its 52-week low and 60% below its 52-week high.

5 Form 144 notices of planned sales are on file, the latest filed Feb 11, 2025.

Last 90 days

Net insider value
$0
no open-market trades
Buys
0
$0 by 0 insiders
Sells
0
$0 by 0 insiders
Insiders on file
12
with a Form 4 at this company

Price and insider trades, last year

ZNTLOct 9, 2026 · close 2.64

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

Open-market buys and sells at Zentalis Pharmaceuticals, Inc., scored.

ScoreInsiderValueHoldingsPrice contextFiled
30WeakIngmar Bruns
Chief Medical Officer
sell
$7,998
3,297 shares
-9%+130% from low-36% from high
40ModerateJulia Marie Eastland
CEO & President
sell
$21k
8,755 shares
-10%+130% from low-36% from high
25WeakVincent Vultaggio
PAO and PFO
sell
$98k
40,224 shares
-22%+130% from low-36% from high
10WeakVincent Vultaggio
PAO and PFO
sell
$7,875
3,096 shares
-2%+141% from low-33% from high
50ModerateWalters Group
owner
buy
$7.8M
6,459,973 shares
+92%+30% from low-58% from high
57ModerateMatrix Capital Management Company, LP
owner
sell
$10.0M
7,500,000 shares
-54%+35% from low-57% from high
31WeakScott Dunseth Myers
director
buy
$29k
21,000 shares
+8%+37% from low-67% from high
39WeakIngmar Bruns
Chief Medical Officer
buy
$46k
20,000 shares
+120%-
48ModerateJulia Marie Eastland
CEO & President
buy
$49k
28,500 shares
--

Planned sales

Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales

FiledSellerSharesValueSale datePast 3 months
Feb 11, 2025 Cam Gallagher
Former Director, Former President & Interim CFO
687
0.00% of outstanding
$1,374Feb 11, 2025$49k
Feb 3, 2025 Cam Gallagher
Former Director, Former President & Interim CFO
28,558
0.04% of outstanding
$49kFeb 3, 2025none
Feb 3, 2025 Mark Lackner
Chief Scientific Officer
14,368
0.02% of outstanding
$25kFeb 3, 2025$14k
Feb 3, 2025 Andrea Paul
Chief Legal Officer & Corporate Secretary
13,230
0.02% of outstanding
$23kFeb 3, 2025none
Oct 31, 2024 Diana Hausman
Former Chief Medical Officer
9,888
0.01% of outstanding
$28kOct 31, 2024none

Transactions

Every row filed, 33 in all.

DateInsiderTransactionSharesPriceValueHoldings afterFiled
Sep 30, 2026Ingmar Bruns
Chief Medical Officer
AGrant or award
Common Stock
+9,727$2.18$21k43,05912 d ago
May 26, 2026Shannon Campbell
director
AGrant or award
Common Stock
+114,200$0.00$0114,200May 27, 2026
Feb 6, 2026Ingmar Bruns
Chief Medical Officer
SOpen-market sale
Common Stock
-2,962$2.43$7,19733,667Feb 10, 2026
Feb 6, 2026Julia Marie Eastland
CEO & President
SOpen-market sale
Common Stock
-7,866$2.43$19k80,022Feb 10, 2026
Feb 6, 2026Vincent Vultaggio
PAO and PFO
SOpen-market sale
Common Stock10b5-1
-29,951$2.43$73k156,779Feb 10, 2026
Feb 9, 2026Ingmar Bruns
Chief Medical Officer
SOpen-market sale
Common Stock
-335$2.39$80233,332Feb 10, 2026
Feb 9, 2026Julia Marie Eastland
CEO & President
SOpen-market sale
Common Stock
-889$2.39$2,12779,133Feb 10, 2026
Feb 9, 2026Vincent Vultaggio
PAO and PFO
SOpen-market sale
Common Stock10b5-1
-3,379$2.39$8,086153,400Feb 10, 2026
Feb 10, 2026Vincent Vultaggio
PAO and PFO
SOpen-market sale
Common Stock10b5-1
-6,894$2.42$17k146,506Feb 10, 2026
Feb 2, 2026Vincent Vultaggio
PAO and PFO
SOpen-market sale
Common Stock10b5-1
-2,540$2.55$6,477187,286Feb 4, 2026
Feb 3, 2026Vincent Vultaggio
PAO and PFO
SOpen-market sale
Common Stock10b5-1
-556$2.52$1,398186,730Feb 4, 2026
Jan 8, 2026Ingmar Bruns
Chief Medical Officer
AGrant or award
Stock Option (Right to Buy)derivative
+365,000$0.00$0365,000Jan 9, 2026
Jan 8, 2026James B Bucher
Chief Legal Officer
AGrant or award
Stock Option (Right to Buy)derivative
+100,000$0.00$0100,000Jan 9, 2026
Jan 8, 2026Julia Marie Eastland
CEO & President
AGrant or award
Stock Option (Right to Buy)derivative
+775,000$0.00$0775,000Jan 9, 2026
Jan 8, 2026Vincent Vultaggio
PAO and PFO
AGrant or award
Stock Option (Right to Buy)derivative
+100,000$0.00$0100,000Jan 9, 2026
Dec 31, 2025Walters Group
owner
POpen-market purchase
Common Stock
+6,459,973$1.20$7.8M13,509,973Jan 8, 2026
Dec 15, 2025Matrix Capital Management Company, LP
owner
SOpen-market sale
Common Stock, par value $0.001 per shareindirect: See footnotes
-7,500,000$1.33$10.0M6,459,973Dec 15, 2025
Oct 1, 2025James B Bucher
Chief Legal Officer
AGrant or award
Stock Option (Right to Buy)derivative
+400,000$0.00$0400,000Oct 1, 2025
Jun 17, 2025David Michael Johnson
director
AGrant or award
Common Stock
+57,603$0.00$0250,421Jun 18, 2025
Jun 17, 2025Enoch Kariuki
director
AGrant or award
Common Stock
+57,603$0.00$0137,365Jun 18, 2025
Jun 17, 2025Scott Dunseth Myers
director
AGrant or award
Common Stock
+57,603$0.00$0338,795Jun 18, 2025
Jun 17, 2025Jan Skvarka
director
AGrant or award
Common Stock
+57,603$0.00$0207,154Jun 18, 2025
Jun 17, 2025Luke Nathaniel Walker
director
AGrant or award
Common Stock
+57,603$0.00$0144,284Jun 18, 2025
Apr 30, 2025Scott Dunseth Myers
director
POpen-market purchase
Common Stock
+21,000$1.40$29k281,192Apr 30, 2025
Feb 6, 2025Ingmar Bruns
Chief Medical Officer
POpen-market purchase
Common Stock
+20,000$2.28$46k36,629Feb 12, 2025
Feb 3, 2025Ingmar Bruns
Chief Medical Officer
AGrant or award
Common Stock
+16,629$0.00$016,629Feb 5, 2025
Feb 3, 2025Julia Marie Eastland
CEO & President
AGrant or award
Common Stock
+59,388$0.00$087,888Feb 5, 2025
Feb 3, 2025Ingmar Bruns
Chief Medical Officer
AGrant or award
Stock Option (Right to Buy)derivative
+16,629$0.00$016,629Feb 5, 2025
Feb 3, 2025Julia Marie Eastland
CEO & President
AGrant or award
Stock Option (Right to Buy)derivative
+59,388$0.00$059,388Feb 5, 2025
Jan 31, 2025Julia Marie Eastland
CEO & President
POpen-market purchase
Common Stock
+28,500$1.73$49k28,500Feb 4, 2025
Dec 2, 2024Ingmar Bruns
Chief Medical Officer
AGrant or award
Stock Option (Right to Buy)derivative
+712,650$0.00$0712,650Dec 3, 2024
Dec 2, 2024Julia Marie Eastland
CEO & President
AGrant or award
Stock Option (Right to Buy)derivative
+3,028,800$0.00$03,028,800Dec 3, 2024
Nov 13, 2024Scott Dunseth Myers
director
AGrant or award
Common Stock
+260,192$0.00$0260,192Nov 13, 2024

Insiders

Everyone who has filed a Form 4 here.

Questions about ZNTL

Answered from the filings on this page, as of the latest one.

Are insiders buying ZNTL?

No. In the last 90 days no insider at Zentalis Pharmaceuticals, Inc. bought or sold shares on the open market according to SEC Form 4 filings. The rows on file from that period are grants, exercises, tax withholding or other transactions, which carry no view on the price.

Who was the last insider to trade ZNTL on the open market?

Ingmar Bruns (Chief Medical Officer) sold $7,998 of ZNTL on Feb 6, 2026 and filed the Form 4 on Feb 10, 2026. InsiderTell scored 30 (weak), with 3 insiders on the same side within 14 days.

How many insiders file Form 4 at Zentalis Pharmaceuticals, Inc.?

12 people have filed a Form 4 at Zentalis Pharmaceuticals, Inc., among them Ingmar Bruns (Chief Medical Officer), James B Bucher (Chief Legal Officer), Shannon Campbell (director). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

ZNTL insider trading: Zentalis Pharmaceuticals, Inc. | InsiderTell