ZENTALIS PHARMACEUTICALS INC

Ticker: ZNTL CUSIP: 98943L107 Class: Common Stock

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

Note: Option positions (PUT/CALL) are excluded.

Q2 2025

Shares 2,271 Value ($000) $3 Avg Close $1.32 Range $1.01 - $1.67

Q1 2025

Shares 24,873 Value ($000) $40 Avg Close $2.16 Range $1.58 - $3.33

Q4 2024

Shares 34,067 Value ($000) $103 Avg Close $3.28 Range $2.66 - $4.44

Q3 2024

Shares 29,800 Value ($000) $110 Avg Close $3.63 Range $2.83 - $5.44

Q4 2023

Shares 28,608 Value ($000) $433 Avg Close $14.59 Range $9.56 - $21.34

Q2 2022

Shares 484 Value ($000) $14 Avg Close $26.49 Range $17.33 - $52.85

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	2,271	$3	$1.32	$1.01 - $1.67
Q1 2025	24,873	$40	$2.16	$1.58 - $3.33
Q4 2024	34,067	$103	$3.28	$2.66 - $4.44
Q3 2024	29,800	$110	$3.63	$2.83 - $5.44
Q4 2023	28,608	$433	$14.59	$9.56 - $21.34
Q2 2022	484	$14	$26.49	$17.33 - $52.85