PHATHOM PHARMACEUTICALS INC

Ticker: PHAT CUSIP: 71722W107 Class: Common Stock

QUADRANT CAPITAL GROUP LLC's Holding History (CIK: 0001650717)

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

Q4 2025

Shares 1,073 Value ($000) $18 Avg Close $14.28 Range $10.33 - $18.31

Q3 2025

Shares 1,073 Value ($000) $13 Avg Close $10.32 Range $7.61 - $13.00

Q1 2025

Shares 84 Value ($000) $1 Avg Close $6.07 Range $4.07 - $8.34

Q4 2022

Shares 212 Value ($000) $2 Avg Close $10.31 Range $9.03 - $11.73

Q3 2022

Shares 212 Value ($000) $2 Avg Close $9.53 Range $6.25 - $12.81

Q2 2022

Shares 212 Value ($000) $2 Avg Close $10.28 Range $6.09 - $16.07

Q4 2021

Shares 49 Value ($000) $1 Avg Close $23.53 Range $17.41 - $34.36

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,073	$18	$14.28	$10.33 - $18.31
Q3 2025	1,073	$13	$10.32	$7.61 - $13.00
Q1 2025	84	$1	$6.07	$4.07 - $8.34
Q4 2022	212	$2	$10.31	$9.03 - $11.73
Q3 2022	212	$2	$9.53	$6.25 - $12.81
Q2 2022	212	$2	$10.28	$6.09 - $16.07
Q4 2021	49	$1	$23.53	$17.41 - $34.36