Insider · CIK 0001391400

Nemser Earl H

Reports to the SEC for 1 company · GREENWICH, CT

sec.gov

Transactions

Companies

Filings

CIK

0001391400

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-07-31	IBKRInteractive Brokers Group, Inc.A Award	Director, Vice Chairman	AAward	+804K sh	$87.99	+$70.7M	803,568
2026-05-08	IBKRInteractive Brokers Group, Inc.F Tax Payment	Director, Vice Chairman	FTax Payment	−22.5K sh	$84.42	−$1.9M	429,344
2026-01-27	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−39.7K sh	$75.07	−$2.98M	20,469
2026-01-27	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−20.5K sh	$75.75	−$1.55M	0
2026-01-26	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−60.9K sh	$75.83	−$4.62M	94,118
2026-01-26	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−30.8K sh	$76.72	−$2.36M	63,301
2026-01-26	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−3,101 sh	$77.98	−$242K	60,200
2026-01-23	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−84.9K sh	$77.65	−$6.6M	215,065
2026-01-23	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−60.1K sh	$78.14	−$4.69M	155,000
2026-01-22	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−100K sh	$76.81	−$7.68M	300,000
2026-01-01	IBKRInteractive Brokers Group, Inc.A Award	Director, Vice Chairman	AAward	+389 sh	$64.31	+$25K	451,830
2025-12-31	IBKRInteractive Brokers Group, Inc.A Award	Director, Vice Chairman	AAward	+23.2K sh	—	—	451,052
2025-12-31	IBKRInteractive Brokers Group, Inc.A Award	Director, Vice Chairman	AAward	+389 sh	$64.31	+$25K	451,441
2025-08-14	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−33.4K sh	$63.86	−$2.13M	420,521
2025-08-14	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−20.5K sh	$64.22	−$1.32M	400,000
2025-08-13	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−4,600 sh	$63.75	−$293K	456,900
2025-08-13	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−200 sh	$64.19	−$12.8K	456,700
2025-08-13	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−200 sh	$66.09	−$13.2K	456,500
2025-08-13	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−2,400 sh	$66.77	−$160K	454,100
2025-08-13	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−200 sh	$67.20	−$13.4K	453,900
2025-08-12	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−153K sh	$67.39	−$10.3M	502,586
2025-08-12	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−41.1K sh	$67.88	−$2.79M	461,500
2025-08-11	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−12.8K sh	$66.09	−$849K	655,586
2025-08-08	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−10.2K sh	$65.60	−$669K	671,068
2025-08-08	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−2,641 sh	$65.94	−$174K	668,427
2025-08-07	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−12.4K sh	$63.94	−$793K	681,709
2025-08-07	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−441 sh	$64.35	−$28.4K	681,268
2025-08-06	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−12.6K sh	$63.47	−$802K	694,309
2025-08-06	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−200 sh	$64.16	−$12.8K	694,109
2025-08-05	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−11K sh	$63.64	−$703K	708,750
2025-08-05	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−1,800 sh	$64.84	−$117K	706,950
2025-08-04	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−12.8K sh	$64.54	−$829K	719,791
2025-08-01	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−1,200 sh	$62.79	−$75.3K	744,273
2025-08-01	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−7,441 sh	$63.94	−$476K	736,832
2025-08-01	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−3,200 sh	$64.71	−$207K	733,632
2025-08-01	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−1,000 sh	$65.66	−$65.7K	732,632
2025-07-31	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−12.4K sh	$66.18	−$823K	747,673
2025-07-31	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−2,200 sh	$66.71	−$147K	745,473
2025-07-30	IBKRInteractive Brokers Group, Inc.A Award	Director, Vice Chairman	AAward	+400K sh	$66.22	+$26.5M	760,114
2025-07-30	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−32.4K sh	$66.32	−$2.15M	367,514
2025-07-30	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−7,400 sh	$66.64	−$493K	360,114
2025-07-28	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−100 sh	$65.90	−$6,590	399,900
2025-06-23	IBKRInteractive Brokers Group, Inc.G Gift	Director, Vice Chairman	GGift	−500 sh	—	—	427,812
2025-05-09	IBKRInteractive Brokers Group, Inc.F Tax Payment	Director, Vice Chairman	FTax Payment	−5,178 sh	$185.60	−$961K	107,078
2025-05-09	IBKRInteractive Brokers Group, Inc.F Tax Payment	Director, Vice Chairman	FTax Payment	−5,178 sh	$185.60	−$961K	107,078
2024-12-31	IBKRInteractive Brokers Group, Inc.A Award	Director, Vice Chairman	AAward	+7,763 sh	—	—	112,114
2024-12-31	IBKRInteractive Brokers Group, Inc.A Award	Director, Vice Chairman	AAward	+142 sh	$176.67	+$25.1K	112,256
2024-07-25	IBKRInteractive Brokers Group, Inc.A Award	Director, Vice Chairman	AAward	+100K sh	$118.57	+$11.9M	100,000
2024-05-09	IBKRInteractive Brokers Group, Inc.F Tax Payment	Director, Vice Chairman	FTax Payment	−4,419 sh	$119.13	−$526K	104,351
2024-02-22	IBKRInteractive Brokers Group, Inc.S Sale	Director, Vice Chairman	SSale	−5,000 sh	$107.01	−$535K	108,770

Recent filings

Accepted (ET)
Aug 44
Nemser Earl H0001381197-26-000143
SEC(opens sec.gov)
May 284
Nemser Earl H0001381197-26-000104
SEC(opens sec.gov)
Jan 284
Nemser Earl H0001381197-26-000058
SEC(opens sec.gov)
Jan 264
Nemser Earl H0001381197-26-000056
SEC(opens sec.gov)
Jan 264
Nemser Earl H0001381197-26-000052
SEC(opens sec.gov)
Jan 74
Nemser Earl H0001381197-26-000027
SEC(opens sec.gov)
Aug 154
Nemser Earl H0001381197-25-000113
SEC(opens sec.gov)
Aug 144
Nemser Earl H0001381197-25-000111
SEC(opens sec.gov)

Companies

Interactive Brokers Group, Inc.Director, Vice ChairmanIBKR

Address

ONE PICKWICK PLAZA

GREENWICH, CT, 06830