ORGANON & CO

Ticker: OGN CUSIP: 68622V106 Class: COM

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

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

Q3 2025

Shares 813 Value ($000) $9 Avg Close $9.78 Range $8.28 - $10.92

Q1 2025

Shares 67,314 Value ($000) $1,002 Avg Close $15.11 Range $14.02 - $16.80

Q4 2024

Shares 71,525 Value ($000) $1,067 Avg Close $15.75 Range $13.52 - $18.35

Q3 2024

Shares 55,537 Value ($000) $1,062 Avg Close $19.71 Range $16.77 - $22.13

Q2 2024

Shares 75,893 Value ($000) $1,571 Avg Close $18.66 Range $16.15 - $20.77

Q1 2024

Shares 256,354 Value ($000) $4,819 Avg Close $15.85 Range $12.53 - $17.64

Q4 2023

Shares 108,738 Value ($000) $1,568 Avg Close $12.33 Range $9.94 - $15.84

Q1 2023

Shares 9,928 Value ($000) $234 Avg Close $23.27 Range $18.29 - $28.00

Q2 2021

Shares 36,120 Value ($000) $1,093 Avg Close $26.93 Range $22.30 - $31.71

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	813	$9	$9.78	$8.28 - $10.92
Q1 2025	67,314	$1,002	$15.11	$14.02 - $16.80
Q4 2024	71,525	$1,067	$15.75	$13.52 - $18.35
Q3 2024	55,537	$1,062	$19.71	$16.77 - $22.13
Q2 2024	75,893	$1,571	$18.66	$16.15 - $20.77
Q1 2024	256,354	$4,819	$15.85	$12.53 - $17.64
Q4 2023	108,738	$1,568	$12.33	$9.94 - $15.84
Q1 2023	9,928	$234	$23.27	$18.29 - $28.00
Q2 2021	36,120	$1,093	$26.93	$22.30 - $31.71