INTERACTIVE BROKERS GROUP IN

Ticker: IBKR CUSIP: 45841N107 Class: EQTY

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q4 2025

Shares 3,518,948 Value ($000) $226,304 Avg Close $66.89 Range $58.88 - $73.26

Q3 2025

Shares 3,560,023 Value ($000) $244,965 Avg Close $62.79 Range $53.01 - $70.18

Q2 2025

Shares 3,687,831 Value ($000) $204,343 Avg Close $47.28 Range $32.69 - $55.48

Q1 2025

Shares 952,772 Value ($000) $157,770 Avg Close $49.31 Range $39.14 - $58.82

Q4 2024

Shares 876,489 Value ($000) $154,849 Avg Close $41.85 Range $33.69 - $48.10

Q3 2024

Shares 763,989 Value ($000) $106,470 Avg Close $30.72 Range $25.70 - $34.63

Q2 2024

Shares 773,541 Value ($000) $94,836 Avg Close $29.54 Range $26.42 - $31.96

Q1 2024

Shares 681,618 Value ($000) $76,144 Avg Close $24.63 Range $20.33 - $27.83

Q4 2023

Shares 765,247 Value ($000) $63,439 Avg Close $20.21 Range $17.92 - $22.24

Q3 2023

Shares 733,695 Value ($000) $63,509 Avg Close $21.95 Range $20.01 - $23.60

Q2 2023

Shares 728,532 Value ($000) $60,519 Avg Close $19.44 Range $17.44 - $21.23

Q1 2023

Shares 733,673 Value ($000) $60,572 Avg Close $20.03 Range $17.46 - $22.21

Q4 2022

Shares 729,245 Value ($000) $52,761 Avg Close $18.36 Range $15.40 - $20.01

Q3 2022

Shares 728,489 Value ($000) $46,557 Avg Close $15.12 Range $12.86 - $17.38

Q2 2022

Shares 660,654 Value ($000) $36,342 Avg Close $14.55 Range $12.78 - $16.65

Q1 2022

Shares 652,742 Value ($000) $43,023 Avg Close $16.85 Range $13.94 - $19.79

Q4 2021

Shares 660,552 Value ($000) $52,460 Avg Close $18.18 Range $15.23 - $20.25

Q3 2021

Shares 675,385 Value ($000) $42,104 Avg Close $15.36 Range $14.37 - $16.36

Q2 2021

Shares 655,460 Value ($000) $43,083 Avg Close $16.85 Range $15.38 - $18.89

Q1 2021

Shares 650,330 Value ($000) $47,500 Avg Close $17.53 Range $14.36 - $19.61

Q4 2020

Shares 603,963 Value ($000) $36,794 Avg Close $12.87 Range $11.33 - $15.30

Q3 2020

Shares 591,833 Value ($000) $28,604 Avg Close $12.09 Range $9.98 - $13.03

Q2 2020

Shares 600,698 Value ($000) $25,091 Avg Close $10.11 Range $8.76 - $11.44

Q1 2020

Shares 612,490 Value ($000) $26,440 Avg Close $11.67 Range $8.14 - $14.11

Q4 2019

Shares 589,370 Value ($000) $27,476 Avg Close $11.31 Range $10.72 - $12.50

Q3 2019

Shares 578,543 Value ($000) $31,114 Avg Close $11.96 Range $10.69 - $13.30

Q2 2019

Shares 594,217 Value ($000) $32,206 Avg Close $13.01 Range $11.86 - $14.22

Q1 2019

Shares 593,113 Value ($000) $30,771 Avg Close $12.59 Range $11.61 - $13.91

Q4 2018

Shares 575,932 Value ($000) $31,475 Avg Close $12.75 Range $11.08 - $14.96

Q3 2018

Shares 571,758 Value ($000) $31,624 Avg Close $14.48 Range $13.14 - $15.95

Q2 2018

Shares 805,487 Value ($000) $51,881 Avg Close $17.25 Range $15.13 - $19.13

Q1 2018

Shares 801,624 Value ($000) $53,902 Avg Close $15.75 Range $14.01 - $17.65

Q4 2017

Shares 628,869 Value ($000) $37,235 Avg Close $12.95 Range $10.63 - $14.82

Q3 2017

Shares 597,530 Value ($000) $26,913 Avg Close $9.67 Range $8.58 - $10.70

Q2 2017

Shares 590,614 Value ($000) $22,100 Avg Close $8.40 Range $7.80 - $9.05

Q1 2017

Shares 582,609 Value ($000) $20,228 Avg Close $8.78 Range $8.05 - $9.31

Q4 2016

Shares 535,445 Value ($000) $19,549 Avg Close $8.56 Range $7.51 - $9.35

Q3 2016

Shares 529,373 Value ($000) $18,671 Avg Close $8.30 Range $7.88 - $8.76

Q2 2016

Shares 490,681 Value ($000) $17,369 Avg Close $8.92 Range $7.90 - $9.67

Q1 2016

Shares 473,565 Value ($000) $18,620 Avg Close $8.23 Range $6.87 - $10.05

Q4 2015

Shares 474,014 Value ($000) $20,667 Avg Close $9.71 Range $8.53 - $10.45

Q3 2015

Shares 478,442 Value ($000) $18,884 Avg Close $9.55 Range $8.25 - $10.65

Q2 2015

Shares 500,480 Value ($000) $20,800 Avg Close $8.40 Range $7.45 - $9.84

Q1 2015

Shares 272,381 Value ($000) $9,267 Avg Close $7.33 Range $5.89 - $7.99

Q4 2014

Shares 264,848 Value ($000) $7,723 Avg Close $6.15 Range $5.28 - $6.88

Q3 2014

Shares 265,249 Value ($000) $6,618 Avg Close $5.45 Range $5.01 - $6.12

Q2 2014

Shares 238,821 Value ($000) $5,561 Avg Close $5.24 Range $4.63 - $5.56

Q1 2014

Shares 236,708 Value ($000) $5,129 Avg Close $5.03 Range $4.67 - $5.63

Q4 2013

Shares 243,359 Value ($000) $5,924 Avg Close $5.05 Range $4.23 - $5.67

Q3 2013

Shares 247,932 Value ($000) $4,653 Avg Close $3.86 Range $3.57 - $4.28

Q2 2013

Shares 217,315 Value ($000) $3,471 Avg Close $3.45 Range $3.06 - $3.76

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	3,518,948	$226,304	$66.89	$58.88 - $73.26
Q3 2025	3,560,023	$244,965	$62.79	$53.01 - $70.18
Q2 2025	3,687,831	$204,343	$47.28	$32.69 - $55.48
Q1 2025	952,772	$157,770	$49.31	$39.14 - $58.82
Q4 2024	876,489	$154,849	$41.85	$33.69 - $48.10
Q3 2024	763,989	$106,470	$30.72	$25.70 - $34.63
Q2 2024	773,541	$94,836	$29.54	$26.42 - $31.96
Q1 2024	681,618	$76,144	$24.63	$20.33 - $27.83
Q4 2023	765,247	$63,439	$20.21	$17.92 - $22.24
Q3 2023	733,695	$63,509	$21.95	$20.01 - $23.60
Q2 2023	728,532	$60,519	$19.44	$17.44 - $21.23
Q1 2023	733,673	$60,572	$20.03	$17.46 - $22.21
Q4 2022	729,245	$52,761	$18.36	$15.40 - $20.01
Q3 2022	728,489	$46,557	$15.12	$12.86 - $17.38
Q2 2022	660,654	$36,342	$14.55	$12.78 - $16.65
Q1 2022	652,742	$43,023	$16.85	$13.94 - $19.79
Q4 2021	660,552	$52,460	$18.18	$15.23 - $20.25
Q3 2021	675,385	$42,104	$15.36	$14.37 - $16.36
Q2 2021	655,460	$43,083	$16.85	$15.38 - $18.89
Q1 2021	650,330	$47,500	$17.53	$14.36 - $19.61
Q4 2020	603,963	$36,794	$12.87	$11.33 - $15.30
Q3 2020	591,833	$28,604	$12.09	$9.98 - $13.03
Q2 2020	600,698	$25,091	$10.11	$8.76 - $11.44
Q1 2020	612,490	$26,440	$11.67	$8.14 - $14.11
Q4 2019	589,370	$27,476	$11.31	$10.72 - $12.50
Q3 2019	578,543	$31,114	$11.96	$10.69 - $13.30
Q2 2019	594,217	$32,206	$13.01	$11.86 - $14.22
Q1 2019	593,113	$30,771	$12.59	$11.61 - $13.91
Q4 2018	575,932	$31,475	$12.75	$11.08 - $14.96
Q3 2018	571,758	$31,624	$14.48	$13.14 - $15.95
Q2 2018	805,487	$51,881	$17.25	$15.13 - $19.13
Q1 2018	801,624	$53,902	$15.75	$14.01 - $17.65
Q4 2017	628,869	$37,235	$12.95	$10.63 - $14.82
Q3 2017	597,530	$26,913	$9.67	$8.58 - $10.70
Q2 2017	590,614	$22,100	$8.40	$7.80 - $9.05
Q1 2017	582,609	$20,228	$8.78	$8.05 - $9.31
Q4 2016	535,445	$19,549	$8.56	$7.51 - $9.35
Q3 2016	529,373	$18,671	$8.30	$7.88 - $8.76
Q2 2016	490,681	$17,369	$8.92	$7.90 - $9.67
Q1 2016	473,565	$18,620	$8.23	$6.87 - $10.05
Q4 2015	474,014	$20,667	$9.71	$8.53 - $10.45
Q3 2015	478,442	$18,884	$9.55	$8.25 - $10.65
Q2 2015	500,480	$20,800	$8.40	$7.45 - $9.84
Q1 2015	272,381	$9,267	$7.33	$5.89 - $7.99
Q4 2014	264,848	$7,723	$6.15	$5.28 - $6.88
Q3 2014	265,249	$6,618	$5.45	$5.01 - $6.12
Q2 2014	238,821	$5,561	$5.24	$4.63 - $5.56
Q1 2014	236,708	$5,129	$5.03	$4.67 - $5.63
Q4 2013	243,359	$5,924	$5.05	$4.23 - $5.67
Q3 2013	247,932	$4,653	$3.86	$3.57 - $4.28
Q2 2013	217,315	$3,471	$3.45	$3.06 - $3.76