INTERACTIVE BROKERS GROUP IN

Ticker: IBKR CUSIP: 45841N107 Class: EQTY

MASON STREET ADVISORS, LLC's Holding History (CIK: 0001167711)

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

Q4 2020

Shares 43,144 Value ($000) $2,628 Avg Close $12.87 Range $11.33 - $15.30

Q3 2020

Shares 42,310 Value ($000) $2,045 Avg Close $12.09 Range $9.98 - $13.03

Q2 2020

Shares 42,060 Value ($000) $1,757 Avg Close $10.11 Range $8.76 - $11.44

Q1 2020

Shares 40,822 Value ($000) $1,762 Avg Close $11.67 Range $8.14 - $14.11

Q4 2019

Shares 40,822 Value ($000) $1,903 Avg Close $11.31 Range $10.72 - $12.50

Q3 2019

Shares 40,248 Value ($000) $2,165 Avg Close $11.96 Range $10.69 - $13.30

Q2 2019

Shares 40,021 Value ($000) $2,169 Avg Close $13.01 Range $11.86 - $14.22

Q1 2019

Shares 39,927 Value ($000) $2,071 Avg Close $12.59 Range $11.61 - $13.91

Q4 2018

Shares 39,329 Value ($000) $2,149 Avg Close $12.75 Range $11.08 - $14.96

Q3 2018

Shares 38,564 Value ($000) $2,133 Avg Close $14.48 Range $13.14 - $15.95

Q2 2018

Shares 36,661 Value ($000) $2,361 Avg Close $17.25 Range $15.13 - $19.13

Q1 2018

Shares 35,899 Value ($000) $2,414 Avg Close $15.75 Range $14.01 - $17.65

Q4 2017

Shares 34,920 Value ($000) $2,068 Avg Close $12.95 Range $10.63 - $14.82

Q3 2017

Shares 18,100 Value ($000) $815 Avg Close $9.67 Range $8.58 - $10.70

Q2 2017

Shares 16,766 Value ($000) $627 Avg Close $8.40 Range $7.80 - $9.05

Q1 2017

Shares 15,897 Value ($000) $552 Avg Close $8.78 Range $8.05 - $9.31

Q4 2016

Shares 14,856 Value ($000) $542 Avg Close $8.56 Range $7.51 - $9.35

Q2 2016

Shares 11,383 Value ($000) $403 Avg Close $8.92 Range $7.90 - $9.67

Q1 2016

Shares 10,350 Value ($000) $407 Avg Close $8.23 Range $6.87 - $10.05

Q4 2015

Shares 9,339 Value ($000) $407 Avg Close $9.71 Range $8.53 - $10.45

Q3 2015

Shares 8,457 Value ($000) $334 Avg Close $9.55 Range $8.25 - $10.65

Q2 2015

Shares 8,078 Value ($000) $336 Avg Close $8.40 Range $7.45 - $9.84

Q1 2015

Shares 7,764 Value ($000) $264 Avg Close $7.33 Range $5.89 - $7.99

Q4 2014

Shares 7,521 Value ($000) $219 Avg Close $6.15 Range $5.28 - $6.88

Q3 2014

Shares 7,125 Value ($000) $178 Avg Close $5.45 Range $5.01 - $6.12

Q2 2014

Shares 6,047 Value ($000) $141 Avg Close $5.24 Range $4.63 - $5.56

Q1 2014

Shares 5,874 Value ($000) $127 Avg Close $5.03 Range $4.67 - $5.63

Q4 2013

Shares 7,949 Value ($000) $193 Avg Close $5.05 Range $4.23 - $5.67

Q3 2013

Shares 7,346 Value ($000) $138 Avg Close $3.86 Range $3.57 - $4.28

Q2 2013

Shares 5,660 Value ($000) $90 Avg Close $3.45 Range $3.06 - $3.76

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	43,144	$2,628	$12.87	$11.33 - $15.30
Q3 2020	42,310	$2,045	$12.09	$9.98 - $13.03
Q2 2020	42,060	$1,757	$10.11	$8.76 - $11.44
Q1 2020	40,822	$1,762	$11.67	$8.14 - $14.11
Q4 2019	40,822	$1,903	$11.31	$10.72 - $12.50
Q3 2019	40,248	$2,165	$11.96	$10.69 - $13.30
Q2 2019	40,021	$2,169	$13.01	$11.86 - $14.22
Q1 2019	39,927	$2,071	$12.59	$11.61 - $13.91
Q4 2018	39,329	$2,149	$12.75	$11.08 - $14.96
Q3 2018	38,564	$2,133	$14.48	$13.14 - $15.95
Q2 2018	36,661	$2,361	$17.25	$15.13 - $19.13
Q1 2018	35,899	$2,414	$15.75	$14.01 - $17.65
Q4 2017	34,920	$2,068	$12.95	$10.63 - $14.82
Q3 2017	18,100	$815	$9.67	$8.58 - $10.70
Q2 2017	16,766	$627	$8.40	$7.80 - $9.05
Q1 2017	15,897	$552	$8.78	$8.05 - $9.31
Q4 2016	14,856	$542	$8.56	$7.51 - $9.35
Q2 2016	11,383	$403	$8.92	$7.90 - $9.67
Q1 2016	10,350	$407	$8.23	$6.87 - $10.05
Q4 2015	9,339	$407	$9.71	$8.53 - $10.45
Q3 2015	8,457	$334	$9.55	$8.25 - $10.65
Q2 2015	8,078	$336	$8.40	$7.45 - $9.84
Q1 2015	7,764	$264	$7.33	$5.89 - $7.99
Q4 2014	7,521	$219	$6.15	$5.28 - $6.88
Q3 2014	7,125	$178	$5.45	$5.01 - $6.12
Q2 2014	6,047	$141	$5.24	$4.63 - $5.56
Q1 2014	5,874	$127	$5.03	$4.67 - $5.63
Q4 2013	7,949	$193	$5.05	$4.23 - $5.67
Q3 2013	7,346	$138	$3.86	$3.57 - $4.28
Q2 2013	5,660	$90	$3.45	$3.06 - $3.76