Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Interactive Brokers Group, Inc.IBKR · Entity 279 | Director · Vice Chairman | July 31, 2026 | August 04, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
Interactive Brokers Group, Inc.
Report date July 31, 2026 · Filed August 04, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Class A common stockSEC Table I · non-derivative | IndirectBy EN Holdings LLC | 803,568 |
Reported balance
After 2026-07-31 transaction · row 1
Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source rowRow 1 · 2026-07-31 · Grant · Acquired 803,568 · Balance 803,568 F1: Represents number of securities acquired by a limited liability company, owned by the Reporting Person and his affiliates, in a partial redemption of its interest in IBG Holdings LLC. Such securities were acquired by IBG Holdings LLC from Interactive Brokers Group, Inc. immediately prior to the redemption in exchange for membership interests in IBG LLC. F2: The per share price provided represents the closing price of the issuer's Class A common stock on 7/31/2026, the date when the exchange described in footnote (1) took place. |
| Class A common stockSEC Table I · non-derivative | Direct | 429,344 |
Reported balance
Holding disclosure · report date 2026-07-31 · row 2
Holding and transaction disclosures are not merged.
1 source rowRow 2 · Balance 429,344 F3: This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the amended 2007 Stock Incentive Plan ("Plan") and (b) unvested restricted stock units that were awarded under the Plan. |
Filing footnotes · ownership attribution and instrument terms
F1: Represents number of securities acquired by a limited liability company, owned by the Reporting Person and his affiliates, in a partial redemption of its interest in IBG Holdings LLC. Such securities were acquired by IBG Holdings LLC from Interactive Brokers Group, Inc. immediately prior to the redemption in exchange for membership interests in IBG LLC.
F2: The per share price provided represents the closing price of the issuer's Class A common stock on 7/31/2026, the date when the exchange described in footnote (1) took place.
F3: This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the amended 2007 Stock Incentive Plan ("Plan") and (b) unvested restricted stock units that were awarded under the Plan.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| July 31, 2026 Filed Aug 4, 2026 20:27 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | GrantClass A common stock | 803,568 | $87.99 | $70,705,948.32 |
DisclosureSEC source: 0001381197-26-000143 · ownership.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Indirect · By EN Holdings LLC Disclosed balance after: 803,568 F1 · shares: Represents number of securities acquired by a limited liability company, owned by the Reporting Person and his affiliates, in a partial redemption of its interest in IBG Holdings LLC. Such securities were acquired by IBG Holdings LLC from Interactive Brokers Group, Inc. immediately prior to the redemption in exchange for membership interests in IBG LLC. F2 · price: The per share price provided represents the closing price of the issuer's Class A common stock on 7/31/2026, the date when the exchange described in footnote (1) took place. F1 · balance_after: Represents number of securities acquired by a limited liability company, owned by the Reporting Person and his affiliates, in a partial redemption of its interest in IBG Holdings LLC. Such securities were acquired by IBG Holdings LLC from Interactive Brokers Group, Inc. immediately prior to the redemption in exchange for membership interests in IBG LLC. Read SEC document |
| May 08, 2026 Filed May 28, 2026 20:01 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | Tax withholdingClass A common stock | 22,486 | $84.42 | $1,898,268.12 |
DisclosureSEC source: 0001381197-26-000104 · ownership.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 429,344 F1 · price: The price represents the closing price of the issuer's Class A common stock as of May 8, 2026, the vesting date. F2 · balance_after: This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the amended 2007 Stock Incentive Plan ("Plan") and (b) unvested restricted stock units that were awarded under the Plan. Read SEC document |
| January 27, 2026 Filed Jan 28, 2026 21:05 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 20,469 | $75.75 | $1,550,526.75 |
DisclosureSEC source: 0001381197-26-000058 · ownership.xml · nonDerivative · entry 5 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 0 F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.55 to $75.99. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the Reporting Person and his affiliates. Read SEC document |
| January 27, 2026 Filed Jan 28, 2026 21:05 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 39,731 | $75.07 | $2,982,606.17 |
DisclosureSEC source: 0001381197-26-000058 · ownership.xml · nonDerivative · entry 4 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 20,469 F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $74.55 to $75.54. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the Reporting Person and his affiliates. Read SEC document |
| January 26, 2026 Filed Jan 28, 2026 21:05 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 3,101 | $77.98 | $241,815.98 |
DisclosureSEC source: 0001381197-26-000058 · ownership.xml · nonDerivative · entry 3 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 60,200 F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $77.46 to $78.41. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the Reporting Person and his affiliates. Read SEC document |
| January 26, 2026 Filed Jan 28, 2026 21:05 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 30,817 | $76.72 | $2,364,280.24 |
DisclosureSEC source: 0001381197-26-000058 · ownership.xml · nonDerivative · entry 2 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 63,301 F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $76.46 to $77.45. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the Reporting Person and his affiliates. Read SEC document |
| January 26, 2026 Filed Jan 28, 2026 21:05 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 60,882 | $75.83 | $4,616,682.06 |
DisclosureSEC source: 0001381197-26-000058 · ownership.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 94,118 F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.46 to $76.45. The Reporting Person undertakes to provide Interactive Brokers Group, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnotes (2) - (4) to this Form 4. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the Reporting Person and his affiliates. Read SEC document |
| January 23, 2026 Filed Jan 26, 2026 22:00 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 60,065 | $78.14 | $4,693,479.10 |
DisclosureSEC source: 0001381197-26-000056 · ownership.xml · nonDerivative · entry 3 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 155,000 F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $78.02 to $78.44. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the Reporting Person and his affiliates. Read SEC document |
| January 23, 2026 Filed Jan 26, 2026 22:00 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 84,935 | $77.65 | $6,595,202.75 |
DisclosureSEC source: 0001381197-26-000056 · ownership.xml · nonDerivative · entry 2 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 215,065 F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $77.02 to $78.01. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the Reporting Person and his affiliates. Read SEC document |
| January 22, 2026 Filed Jan 26, 2026 22:00 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 100,000 | $76.81 | $7,681,000.00 |
DisclosureSEC source: 0001381197-26-000056 · ownership.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 300,000 F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $76.45 to $77.34. The Reporting Person undertakes to provide Interactive Brokers Group, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnotes (2) - (4) to this Form 4. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the Reporting Person and his affiliates. Read SEC document |
| January 01, 2026 Filed Jan 26, 2026 21:30 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | GrantClass A common stock | 389 | $64.31 | $25,016.59 |
DisclosureSEC source: 0001381197-26-000052 · ownership.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 451,830 F1 · shares: On January 22, 2026, Interactive Brokers Group, Inc.'s ("Issuer") Board of Directors ("Board") modified the compensation policy for members of the Board. The annual awards granted to all directors on December 31 of each year, under the 2007 Stock Incentive Plan as amended ("Plan"), increased from $25,000 to $50,000. This represents additional restricted stock units granted to the Reporting Person, under the Plan, which vested on January 1, 2026. F2 · price: The price represents the closing price of the Issuer's Class A common stock on December 31, 2025. F3 · balance_after: This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the Plan and (b) unvested restricted stock units that were awarded under the Plan. Read SEC document |
| December 31, 2025 Filed Jan 7, 2026 21:01 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | GrantClass A common stock | 389 | $64.31 | $25,016.59 |
DisclosureSEC source: 0001381197-26-000027 · ownership.xml · nonDerivative · entry 2 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 451,441 F3 · shares: This represents an annual grant of restricted stock units under the Plan for being a member of the issuer's Board of Directors, which vested immediately on 12/31/2025. F4 · price: The price represents the closing price of the issuer's Class A common stock on December 31, 2025. F2 · balance_after: This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the Plan and (b) unvested restricted stock units that were awarded under the Plan. Read SEC document |
| December 31, 2025 Filed Jan 7, 2026 21:01 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | GrantClass A common stock | 23,240 | $0.00 | $0.00 |
DisclosureSEC source: 0001381197-26-000027 · ownership.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 451,052 F1 · shares: This represents a grant of restricted stock units under the 2007 Stock Incentive Plan as amended ("Plan") that will vest 20% on or about 5/9/2026 and 20% on each of the first four anniversaries of 5/9/2026. F1 · price: This represents a grant of restricted stock units under the 2007 Stock Incentive Plan as amended ("Plan") that will vest 20% on or about 5/9/2026 and 20% on each of the first four anniversaries of 5/9/2026. F2 · balance_after: This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the Plan and (b) unvested restricted stock units that were awarded under the Plan. Read SEC document |
| August 14, 2025 Filed Aug 15, 2025 20:06 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 20,521 | $64.22 | $1,317,858.62 |
DisclosureSEC source: 0001381197-25-000113 · form4.xml · nonDerivative · entry 2 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 400,000 F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.03 to $64.55. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 14, 2025 Filed Aug 15, 2025 20:06 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 33,379 | $63.86 | $2,131,582.94 |
DisclosureSEC source: 0001381197-25-000113 · form4.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 420,521 F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.03 to $64.02. The Reporting Person undertakes to provide Interactive Brokers Group, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnotes (2) - (3) to this Form 4. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 13, 2025 Filed Aug 14, 2025 20:02 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 200 | $67.20 | $13,440.00 |
DisclosureSEC source: 0001381197-25-000111 · form4.xml · nonDerivative · entry 7 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 453,900 F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 13, 2025 Filed Aug 14, 2025 20:02 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 2,400 | $66.77 | $160,248.00 |
DisclosureSEC source: 0001381197-25-000111 · form4.xml · nonDerivative · entry 6 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 454,100 F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $66.18 to $67.06. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 13, 2025 Filed Aug 14, 2025 20:02 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 200 | $66.09 | $13,218.00 |
DisclosureSEC source: 0001381197-25-000111 · form4.xml · nonDerivative · entry 5 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 456,500 F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $65.18 to $66.17. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 13, 2025 Filed Aug 14, 2025 20:02 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 200 | $64.19 | $12,838.00 |
DisclosureSEC source: 0001381197-25-000111 · form4.xml · nonDerivative · entry 4 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 456,700 F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.18 to $65.17. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 13, 2025 Filed Aug 14, 2025 20:02 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 4,600 | $63.75 | $293,250.00 |
DisclosureSEC source: 0001381197-25-000111 · form4.xml · nonDerivative · entry 3 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 456,900 F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.18 to $64.17. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 12, 2025 Filed Aug 14, 2025 20:02 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 41,086 | $67.88 | $2,788,917.68 |
DisclosureSEC source: 0001381197-25-000111 · form4.xml · nonDerivative · entry 2 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 461,500 F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $67.76 to $68.04. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 12, 2025 Filed Aug 14, 2025 20:02 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 153,000 | $67.39 | $10,310,670.00 |
DisclosureSEC source: 0001381197-25-000111 · form4.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 502,586 F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $66.76 to $67.75. The Reporting Person undertakes to provide Interactive Brokers Group, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnotes (2) - (7) to this Form 4. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 11, 2025 Filed Aug 12, 2025 20:02 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 12,841 | $66.09 | $848,661.69 |
DisclosureSEC source: 0001381197-25-000109 · form4.xml · nonDerivative · entry 3 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 655,586 F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $65.63 to $66.42. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 08, 2025 Filed Aug 12, 2025 20:02 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 2,641 | $65.94 | $174,147.54 |
DisclosureSEC source: 0001381197-25-000109 · form4.xml · nonDerivative · entry 2 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 668,427 F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $65.90 to $66.00. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 08, 2025 Filed Aug 12, 2025 20:02 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 10,200 | $65.60 | $669,120.00 |
DisclosureSEC source: 0001381197-25-000109 · form4.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 671,068 F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.90 to $65.89. The Reporting Person undertakes to provide Interactive Brokers Group, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnotes (2) - (4) to this Form 4. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 07, 2025 Filed Aug 8, 2025 20:03 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 441 | $64.35 | $28,378.35 |
DisclosureSEC source: 0001381197-25-000107 · form4.xml · nonDerivative · entry 4 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 681,268 F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.24 to $64.40. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 07, 2025 Filed Aug 8, 2025 20:03 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 12,400 | $63.94 | $792,856.00 |
DisclosureSEC source: 0001381197-25-000107 · form4.xml · nonDerivative · entry 3 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 681,709 F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.24 to $64.23. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 06, 2025 Filed Aug 8, 2025 20:03 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 200 | $64.16 | $12,832.00 |
DisclosureSEC source: 0001381197-25-000107 · form4.xml · nonDerivative · entry 2 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 694,109 F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 06, 2025 Filed Aug 8, 2025 20:03 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 12,641 | $63.47 | $802,324.27 |
DisclosureSEC source: 0001381197-25-000107 · form4.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 694,309 F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.10 to $64.09. The Reporting Person undertakes to provide Interactive Brokers Group, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnotes (2) - (4) to this Form 4. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 05, 2025 Filed Aug 6, 2025 20:18 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 1,800 | $64.84 | $116,712.00 |
DisclosureSEC source: 0001381197-25-000105 · form4.xml · nonDerivative · entry 3 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 706,950 F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.32 to $65.05. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 05, 2025 Filed Aug 6, 2025 20:18 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 11,041 | $63.64 | $702,649.24 |
DisclosureSEC source: 0001381197-25-000105 · form4.xml · nonDerivative · entry 2 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 708,750 F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.32 to $64.31. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 04, 2025 Filed Aug 6, 2025 20:18 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 12,841 | $64.54 | $828,758.14 |
DisclosureSEC source: 0001381197-25-000105 · form4.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 719,791 F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.87 to $64.75. The Reporting Person undertakes to provide Interactive Brokers Group, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnotes (2) - (4) to this Form 4. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 01, 2025 Filed Aug 4, 2025 20:02 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 1,000 | $65.66 | $65,660.00 |
DisclosureSEC source: 0001381197-25-000100 · form4.xml · nonDerivative · entry 6 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 732,632 F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $65.35 to $65.79. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 01, 2025 Filed Aug 4, 2025 20:02 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 3,200 | $64.71 | $207,072.00 |
DisclosureSEC source: 0001381197-25-000100 · form4.xml · nonDerivative · entry 5 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 733,632 F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.35 to $65.34. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 01, 2025 Filed Aug 4, 2025 20:02 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 7,441 | $63.94 | $475,777.54 |
DisclosureSEC source: 0001381197-25-000100 · form4.xml · nonDerivative · entry 4 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 736,832 F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.35 to $64.34. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| August 01, 2025 Filed Aug 4, 2025 20:02 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 1,200 | $62.79 | $75,348.00 |
DisclosureSEC source: 0001381197-25-000100 · form4.xml · nonDerivative · entry 3 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 744,273 F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $62.35 to $63.34. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| July 31, 2025 Filed Aug 4, 2025 20:02 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 2,200 | $66.71 | $146,762.00 |
DisclosureSEC source: 0001381197-25-000100 · form4.xml · nonDerivative · entry 2 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 745,473 F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $66.64 to $66.72. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| July 31, 2025 Filed Aug 4, 2025 20:02 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 12,441 | $66.18 | $823,345.38 |
DisclosureSEC source: 0001381197-25-000100 · form4.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 747,673 F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $65.64 to $66.63. The Reporting Person undertakes to provide Interactive Brokers Group, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnotes (2) - (7) to this Form 4. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| July 30, 2025 Filed Aug 1, 2025 20:49 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 7,400 | $66.64 | $493,136.00 |
DisclosureSEC source: 0001381197-25-000098 · form4.xml · nonDerivative · entry 2 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 360,114 F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $66.58 to $66.73. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| July 30, 2025 Filed Aug 1, 2025 20:49 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 32,386 | $66.32 | $2,147,839.52 |
DisclosureSEC source: 0001381197-25-000098 · form4.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 367,514 F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $65.58 to $66.57. The Reporting Person undertakes to provide Interactive Brokers Group, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnotes (2) - (3) to this Form 4. F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| July 30, 2025 Filed Aug 1, 2025 20:45 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | GrantClass A common stock | 400,000 | $66.22 | $26,488,000.00 |
DisclosureSEC source: 0001381197-25-000095 · form4.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 760,114 F1 · shares: Represents number of securities acquired by a limited liability company, owned by the Reporting Person and his affiliates, in a partial redemption of its interest in IBG Holdings LLC. Such securities were acquired by IBG Holdings LLC from Interactive Brokers Group, Inc. immediately prior to the redemption in exchange for membership interests in IBG LLC. F2 · price: The per share price provided represents the closing price of the issuer's Class A common stock on 7/30/2025, the date when the exchange described in footnote (6) took place. F1 · balance_after: Represents number of securities acquired by a limited liability company, owned by the Reporting Person and his affiliates, in a partial redemption of its interest in IBG Holdings LLC. Such securities were acquired by IBG Holdings LLC from Interactive Brokers Group, Inc. immediately prior to the redemption in exchange for membership interests in IBG LLC. F3 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| July 28, 2025 Filed Jul 30, 2025 22:23 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 100 | $65.90 | $6,590.00 |
DisclosureSEC source: 0001381197-25-000091 · form4.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Indirect · by EN Holdings LLC Disclosed balance after: 399,900 F1 · balance_after: Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates. Read SEC document |
| June 23, 2025 Filed Jun 24, 2025 20:13 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | GiftClass A common stock | 500 | $0.00 | $0.00 |
DisclosureSEC source: 0001381197-25-000074 · form4.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 427,812 F1 · kind: The Reporting Person donated 500 shares of IBKR Class A common stock to a nonprofit organization. F2 · balance_after: This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the amended 2007 Stock Incentive Plan ("Plan") and (b) unvested restricted stock units that were awarded under the Plan. F4 · balance_after: On June 17, 2025, the Issuer effected a four-for-one split of its common stock, resulting in the reporting person's ownership of 321,234 additional shares of common stock. Read SEC document |
| May 09, 2025 Filed Jun 3, 2025 20:10 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | Tax withholdingClass A common stock | 5,178 | $185.60 | $961,036.80 |
DisclosureSEC source: 0001381197-25-000062 · form4.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 107,078 F1 · price: The price represents the closing price of the issuer's Class A common stock as of May 9, 2025, the vesting date. F2 · balance_after: This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the amended 2007 Stock Incentive Plan ("Plan") and (b) unvested restricted stock units that were awarded under the Plan. Read SEC document |
| May 09, 2025 Filed Jun 4, 2025 16:25 UTC Amendment | Interactive Brokers Group, Inc. IBKR · Entity 279 | Tax withholdingClass A common stock | 5,178 | $185.60 | $961,036.80 |
DisclosureSEC source: 0001381197-25-000071 · form4.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 107,078 F1 · price: The price represents the closing price of the issuer's Class A common stock as of May 9, 2025, the vesting date. F2 · balance_after: This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the amended 2007 Stock Incentive Plan ("Plan") and (b) unvested restricted stock units that were awarded under the Plan. Read SEC document |
| December 31, 2024 Filed Jan 7, 2025 21:44 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | GrantClass A common stock | 142 | $176.67 | $25,087.14 |
DisclosureSEC source: 0001381197-25-000013 · form4.xml · nonDerivative · entry 2 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 112,256 F3 · shares: This represents an annual grant of restricted stock units under the Plan for being a member of the issuer's Board of Directors, which vested immediately on 12/31/2024. F4 · price: The price represents the closing price of the issuer's Class A common stock on December 31, 2024. F2 · balance_after: This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the Plan; and (b) unvested restricted stock units that were awarded under the Plan. Read SEC document |
| December 31, 2024 Filed Jan 7, 2025 21:44 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | GrantClass A common stock | 7,763 | $0.00 | $0.00 |
DisclosureSEC source: 0001381197-25-000013 · form4.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 112,114 F1 · shares: This represents a grant of restricted stock units under the 2007 Stock Incentive Plan as amended ("Plan") that will vest 20% on or about 5/9/2025 and 20% on each of the first four anniversaries of 5/9/2025. F1 · price: This represents a grant of restricted stock units under the 2007 Stock Incentive Plan as amended ("Plan") that will vest 20% on or about 5/9/2025 and 20% on each of the first four anniversaries of 5/9/2025. F2 · balance_after: This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the Plan; and (b) unvested restricted stock units that were awarded under the Plan. Read SEC document |
| July 25, 2024 Filed Jul 29, 2024 20:04 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | GrantClass A common stock | 100,000 | $118.57 | $11,857,000.00 |
DisclosureSEC source: 0001381197-24-000121 · form4.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Indirect · By EN Holdings LLC Disclosed balance after: 100,000 F1 · shares: Represents number of securities acquired by a limited liability company, owned by the Reporting Person and his affiliates, in a partial redemption of its interest in IBG Holdings LLC. Such securities were acquired by IBG Holdings LLC from Interactive Brokers Group, Inc. immediately prior to the redemption in exchange for membership interests in IBG LLC. F2 · price: The per share price provided represents the closing price of the issuer's Class A common stock on 7/25/2024, the date when the exchange described in footnote (1) took place. F1 · balance_after: Represents number of securities acquired by a limited liability company, owned by the Reporting Person and his affiliates, in a partial redemption of its interest in IBG Holdings LLC. Such securities were acquired by IBG Holdings LLC from Interactive Brokers Group, Inc. immediately prior to the redemption in exchange for membership interests in IBG LLC. Read SEC document |
| May 09, 2024 Filed May 24, 2024 20:05 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | Tax withholdingClass A common stock | 4,419 | $119.13 | $526,435.47 |
DisclosureSEC source: 0001381197-24-000104 · form4.xml · nonDerivative · entry 1 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 104,351 F1 · price: The price represents the closing price of the issuer's Class A common stock as of May 9, 2024, the vesting date. F2 · balance_after: This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the amended 2007 Stock Incentive Plan ("Plan") and (b) unvested restricted stock units that were awarded under the Plan. Read SEC document |
| February 22, 2024 Filed Feb 23, 2024 21:18 UTC | Interactive Brokers Group, Inc. IBKR · Entity 279 | SaleClass A common stock | 5,000 | $107.01 | $535,050.00 |
DisclosureSEC source: 0001381197-24-000079 · form4.xml · nonDerivative · entry 2 Nemser Earl H · CIK 0001391400 · Director · Vice Chairman 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 108,770 F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $106.82 to $107.34. F1 · balance_after: This amount includes (a) Class A common stock attributable to vested restricted stock units awarded under the amended 2007 Stock Incentive Plan ("Plan"); and (b) unvested restricted stock units awarded under the Plan. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.