organization · Reporting owner

Echinus Advisors, LLC

Disclosed activity across 1 company

Tapewire entity: 106409
SEC CIK: 0001602970

Reported relationships

Latest disclosed role at each company.

Company	Last reported as	Report date	Published
Interactive Brokers Group, Inc.IBKR · Entity 279	Director · See Remarks	April 23, 2020	April 27, 2020

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 April 23, 2020 · Filed April 27, 2020

Jointly reported with Uhde Philip

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Class A Common Stock, $0.01 par value per shareSEC Table I · non-derivative	IndirectSee footnote	1,652	Reported balance After 2020-04-23 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2020-04-23 · Other · Disposed 2,409,873 · Balance 1,652 F2: On April 23, 2020, the securities were distributed pro rata to the partners of the Echinus Fund (the "Distribution"). F1: These securities were held for the account of Echinus Partners, LP, a Delaware limited partnership (the "Echinus Fund"). Echinus Advisors, LLC, a Delaware limited liability Company ("Echinus"), serves as the investment manager to the Echinus Fund. Mr. Philip Uhde ("Mr. Uhde") is the manager and majority controlling person of Echinus. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	IndirectSee footnote	0	Reported balance After 2020-04-23 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 2 · 2020-04-23 · Sale · Disposed 1,652 · Balance 0 F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $39.075 to $39.33, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein. F1: These securities were held for the account of Echinus Partners, LP, a Delaware limited partnership (the "Echinus Fund"). Echinus Advisors, LLC, a Delaware limited liability Company ("Echinus"), serves as the investment manager to the Echinus Fund. Mr. Philip Uhde ("Mr. Uhde") is the manager and majority controlling person of Echinus. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein, if any.
Common StockSEC Table I · non-derivative	Direct	108,844	Reported balance Holding disclosure · report date 2020-04-23 · row 3 Holding and transaction disclosures are not merged. 1 source row Row 3 · Balance 108,844 F4: Mr. Uhde received 108,844 shares in the Distribution which he now holds directly.

Filing footnotes · ownership attribution and instrument terms

F1: These securities were held for the account of Echinus Partners, LP, a Delaware limited partnership (the "Echinus Fund"). Echinus Advisors, LLC, a Delaware limited liability Company ("Echinus"), serves as the investment manager to the Echinus Fund. Mr. Philip Uhde ("Mr. Uhde") is the manager and majority controlling person of Echinus. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein, if any.

F2: On April 23, 2020, the securities were distributed pro rata to the partners of the Echinus Fund (the "Distribution").

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $39.075 to $39.33, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

F4: Mr. Uhde received 108,844 shares in the Distribution which he now holds directly.

Transaction history

JSON API

Purchases/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
April 23, 2020 Filed Apr 27, 2020 16:40 UTC	Interactive Brokers Group, Inc. IBKR · Entity 279	SaleCommon Stock	1,652	$39.20	$64,758.40	Disclosure SEC source: 0000902664-20-001911 · ownership.xml · nonDerivative · entry 2 Uhde Philip · CIK 0001772442 · Director · See Remarks Echinus Advisors, LLC · CIK 0001602970 · Director · See Remarks Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · See footnote Disclosed balance after: 0 F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $39.075 to $39.33, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein. F1 · ownership.nature: These securities were held for the account of Echinus Partners, LP, a Delaware limited partnership (the "Echinus Fund"). Echinus Advisors, LLC, a Delaware limited liability Company ("Echinus"), serves as the investment manager to the Echinus Fund. Mr. Philip Uhde ("Mr. Uhde") is the manager and majority controlling person of Echinus. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein, if any. Read SEC document
April 23, 2020 Filed Apr 27, 2020 16:40 UTC	Interactive Brokers Group, Inc. IBKR · Entity 279	OtherClass A Common Stock, $0.01 par value per share	2,409,873	$0.00	$0.00	Disclosure SEC source: 0000902664-20-001911 · ownership.xml · nonDerivative · entry 1 Uhde Philip · CIK 0001772442 · Director · See Remarks Echinus Advisors, LLC · CIK 0001602970 · Director · See Remarks Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · See footnote Disclosed balance after: 1,652 F2 · kind: On April 23, 2020, the securities were distributed pro rata to the partners of the Echinus Fund (the "Distribution"). F2 · price: On April 23, 2020, the securities were distributed pro rata to the partners of the Echinus Fund (the "Distribution"). F1 · ownership.nature: These securities were held for the account of Echinus Partners, LP, a Delaware limited partnership (the "Echinus Fund"). Echinus Advisors, LLC, a Delaware limited liability Company ("Echinus"), serves as the investment manager to the Echinus Fund. Mr. Philip Uhde ("Mr. Uhde") is the manager and majority controlling person of Echinus. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein, if any. 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.