NORTHERN TR CORP

Ticker: NTRS CUSIP: 665859104 Class: COM

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

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

Q4 2025
Shares 16,472 Value ($000) $2,250 Avg Close $130.74 Range $120.39 - $141.25
Q3 2025
Shares 3,770 Value ($000) $507 Avg Close $127.35 Range $117.54 - $134.67
Q2 2024
Shares 260 Value ($000) $22 Avg Close $79.92 Range $75.34 - $84.71
Q1 2024
Shares 161 Value ($000) $14 Avg Close $77.38 Range $72.15 - $84.77
Q3 2023
Shares 184 Value ($000) $13 Avg Close $69.90 Range $63.24 - $76.10
Q2 2023
Shares 1,014 Value ($000) $75 Avg Close $70.33 Range $63.56 - $82.80
Q1 2023
Shares 3,016 Value ($000) $266 Avg Close $84.16 Range $73.69 - $90.89
Q3 2022
Shares 300 Value ($000) $26 Avg Close $86.27 Range $75.57 - $93.27
Q4 2020
Shares 100 Value ($000) $9 Avg Close $75.32 Range $64.54 - $84.00
Q3 2020
Shares 1,810 Value ($000) $141 Avg Close $67.99 Range $61.38 - $73.22
Q2 2020
Shares 1,029 Value ($000) $82 Avg Close $66.60 Range $56.52 - $77.90
Q1 2019
Shares 900 Value ($000) $81 Avg Close $72.96 Range $66.04 - $78.80
Q4 2018
Shares 1,805 Value ($000) $151 Avg Close $75.32 Range $61.37 - $86.09
Q3 2016
Shares 197 Value ($000) $13 Avg Close $52.45 Range $47.67 - $55.52
Q1 2016
Shares 296 Value ($000) $19 Avg Close $47.88 Range $41.46 - $54.24
Q3 2015
Shares 1,948 Value ($000) $133 Avg Close $55.52 Range $49.19 - $59.82