{"transactions":[{"id":1121988,"issuer":{"id":9564,"kind":"organization","name":"TILE SHOP HOLDINGS, INC."},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-06-05T16:19:06.000Z","date":"2025-06-03","kind":"grant","planned":false,"acquired":true,"shares":32063,"price":5.926,"value":190005.338,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of restricted stock granted pursuant to the Company's 2021 Omnibus Equity Compensation Plan, which are subject to a risk of forfeiture until the earlier of (a) the date of the Company's next annual meeting of stockholders and (b) June 3, 2026."}],"balance_after":3508447,"source":{"system":"sec-edgar","filing":"0001104659-25-056850","document":"tm2517158-4_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/937541/000110465925056850/tm2517158-4_4seq1.xml","form_type":"4"}},{"id":1334651,"issuer":{"id":85009,"kind":"organization","name":"PSYCHEMEDICS CORP","symbol":"PMD"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, $0.005 Par Value","published_at":"2024-12-12T17:15:34.000Z","date":"2024-12-10","kind":"sale","planned":false,"acquired":false,"shares":320708,"price":2.35,"value":753663.8,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of common stock, par value $0.005 per share, held by 3K Limited Partnership (\"3K Limited\"), of which the reporting person is the general partner (the \"Reporting Person\"), and repurchased by the Issuer, pursuant to a stock repurchase agreement, dated as of December 10, 2024, by and among the Issuer and 3K Limited, following the final determination of the purchase price required to purchase fractional shares in the Issuer's recently completed reverse stock split."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The Reporting Person holds 218,728 shares indirectly by the Peter H. Kamin Revocable Trust dated February 2003, 146,998 shares indirectly by the Peter H. Kamin Childrens Trust dated March 1997 and 1,133,984 shares indirectly by 3K Limited. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purposes."}],"balance_after":1499710,"source":{"system":"sec-edgar","filing":"0001420506-24-002619","document":"doc4_1138.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/806517/000142050624002619/doc4_1138.xml","form_type":"4"}},{"id":1342124,"issuer":{"id":85009,"kind":"organization","name":"PSYCHEMEDICS CORP","symbol":"PMD"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, $0.005 Par Value","published_at":"2024-12-05T18:05:08.000Z","date":"2024-12-03","kind":"purchase","planned":false,"acquired":true,"shares":1409712,"price":2.35,"value":3312823.2,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of common stock, par value $0.005 per share, of the Issuer issued and sold to 3K Limited Partnership (\"3K Limited\"), of which the reporting person is the general partner (the \"Reporting Person\"), pursuant to a stock purchase agreement, dated as of August 12, 2024, by and among the Issuer, 3K Limited, the Reporting person, in his individual capacity, the Peter H. Kamin Revocable Trust dated February 2003 (the \"Kamin Trust\"), the Peter H. Kamin Childrens Trust dated March 1997 (the \"Kamin Childrens Trust\"), the Peter H. Kamin GST Trust and the Peter H. Kamin Family Foundation, of which the Reporting Person is sole trustee."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The Reporting Person holds 218,728 shares indirectly by the Kamin Trust, 146,998 shares indirectly by the Kamin Childrens Trust and 1,454,692 shares indirectly by 3K Limited Partnership. The Reporting Person disclaims beneficial ownership of these Securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purposes."}],"balance_after":1820418,"source":{"system":"sec-edgar","filing":"0001420506-24-002607","document":"doc4_1135.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/806517/000142050624002607/doc4_1135.xml","form_type":"4"}},{"id":1472464,"issuer":{"id":9564,"kind":"organization","name":"TILE SHOP HOLDINGS, INC."},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2024-06-21T07:47:09.000Z","date":"2024-06-18","kind":"grant","planned":false,"acquired":true,"shares":28752,"price":6.6083,"value":190001.8416,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of restricted stock granted pursuant to the Company's 2021 Omnibus Equity Compensation Plan, which are subject to a risk of forfeiture until the earlier of (a) the date of the Company's next annual meeting of stockholders and (b) June 18, 2025."}],"balance_after":3476384,"source":{"system":"sec-edgar","filing":"0001104659-24-073749","document":"tm2417589-4_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/937541/000110465924073749/tm2417589-4_4seq1.xml","form_type":"4"}},{"id":1801237,"issuer":{"id":85009,"kind":"organization","name":"PSYCHEMEDICS CORP","symbol":"PMD"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, $.005 Par Value","published_at":"2023-08-21T17:40:33.000Z","date":"2023-08-17","kind":"grant","planned":false,"acquired":true,"shares":14000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents restricted stock units that are to be settled solely in shares of Common Stock. The units vest with respect to 100% of the shares on the earlier of: (i)  August 17, 2024 or (ii) one business day prior to the date of the 2024 Annual Meeting of Stockholders."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The reporting person also holds 218,728 shares indirectly by the Peter H. Kamin Revocable Trust dated February 2003, 146,998 shares indirectly by the Peter H. Kamin Childrens Trust dated March 1997, and 44,980 shares\nindirectly by 3K Limited Partnership. The reporting person disclaims beneficial ownership of these Securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for Section 16 or any other purposes."}],"balance_after":237031,"source":{"system":"sec-edgar","filing":"0001062993-23-016936","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/806517/000106299323016936/form4.xml","form_type":"4"}},{"id":1854962,"issuer":{"id":9564,"kind":"organization","name":"TILE SHOP HOLDINGS, INC."},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2023-06-15T17:46:39.000Z","date":"2023-06-13","kind":"grant","planned":false,"acquired":true,"shares":38248,"price":4.9677,"value":190004.5896,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of restricted stock granted pursuant to the Company's 2021 Omnibus Equity Compensation Plan, which are subject to a risk of forfeiture until the earlier of (a) the date of the Company's next annual meeting of stockholders and (b) June 13, 2024."}],"balance_after":3447632,"source":{"system":"sec-edgar","filing":"0001104659-23-071696","document":"tm2318831-4_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/937541/000110465923071696/tm2318831-4_4seq1.xml","form_type":"4"}},{"id":1943627,"issuer":{"id":115305,"kind":"organization","name":"IAA, Inc.","symbol":"IAA"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-03-21T17:45:33.000Z","date":"2023-03-20","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":19000,"ownership":{"direct":false,"nature":"By Peter H. Kamin Family Foundation"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Pursuant to an Agreement and Plan of Merger and Reorganization, dated as of November 7, 2022, as amended by the Amendment to the Agreement and Plan of Merger and Reorganization, dated as of January 22, 2023 (the \"Merger Agreement\" and the transactions contemplated thereby, the \"Merger\"), by and among the Issuer, a Delaware corporation, Ritchie Bros. Auctioneers Incorporated, a company organized under the federal laws of Canada (\"RBA\"), Ritchie Bros. Holdings Inc., a Washington corporation and a direct and indirect wholly owned subsidiary of RBA (\"US Holdings\"), Impala Merger Sub I, LLC, a Delaware limited liability company and a direct wholly owned subsidiary of US Holdings, and Impala Merger Sub II, LLC, a Delaware limited liability company and a direct wholly owned subsidiary of US Holdings,"},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"(Continued from Footnote 1) each outstanding share of the Issuer's common stock held by the Reporting Person immediately prior to the effective time of the Merger automatically and without any required action by the Reporting Person, was converted into the right to receive: (i) 0.5252 of a common share of RBA plus cash in lieu of any fractional RBA common share, and (ii) $12.80 in cash, without interest and less any required withholding taxes (the \"Merger Consideration\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F8","text":"These securities are owned by the Peter H. Kamin Family Foundation. The Reporting Person is the Trustee of the Foundation. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000899243-23-009321","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/937541/000089924323009321/doc4.xml","form_type":"4"}},{"id":1943626,"issuer":{"id":115305,"kind":"organization","name":"IAA, Inc.","symbol":"IAA"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-03-21T17:45:33.000Z","date":"2023-03-20","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":56100,"ownership":{"direct":false,"nature":"By Peter H. Kamin GST Trust"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Pursuant to an Agreement and Plan of Merger and Reorganization, dated as of November 7, 2022, as amended by the Amendment to the Agreement and Plan of Merger and Reorganization, dated as of January 22, 2023 (the \"Merger Agreement\" and the transactions contemplated thereby, the \"Merger\"), by and among the Issuer, a Delaware corporation, Ritchie Bros. Auctioneers Incorporated, a company organized under the federal laws of Canada (\"RBA\"), Ritchie Bros. Holdings Inc., a Washington corporation and a direct and indirect wholly owned subsidiary of RBA (\"US Holdings\"), Impala Merger Sub I, LLC, a Delaware limited liability company and a direct wholly owned subsidiary of US Holdings, and Impala Merger Sub II, LLC, a Delaware limited liability company and a direct wholly owned subsidiary of US Holdings,"},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"(Continued from Footnote 1) each outstanding share of the Issuer's common stock held by the Reporting Person immediately prior to the effective time of the Merger automatically and without any required action by the Reporting Person, was converted into the right to receive: (i) 0.5252 of a common share of RBA plus cash in lieu of any fractional RBA common share, and (ii) $12.80 in cash, without interest and less any required withholding taxes (the \"Merger Consideration\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"These securities are owned by the Peter H. Kamin GST Trust. The Reporting Person is trustee of the trust. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000899243-23-009321","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/937541/000089924323009321/doc4.xml","form_type":"4"}},{"id":1943625,"issuer":{"id":115305,"kind":"organization","name":"IAA, Inc.","symbol":"IAA"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-03-21T17:45:33.000Z","date":"2023-03-20","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":83054,"ownership":{"direct":false,"nature":"By Roth IRA"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Pursuant to an Agreement and Plan of Merger and Reorganization, dated as of November 7, 2022, as amended by the Amendment to the Agreement and Plan of Merger and Reorganization, dated as of January 22, 2023 (the \"Merger Agreement\" and the transactions contemplated thereby, the \"Merger\"), by and among the Issuer, a Delaware corporation, Ritchie Bros. Auctioneers Incorporated, a company organized under the federal laws of Canada (\"RBA\"), Ritchie Bros. Holdings Inc., a Washington corporation and a direct and indirect wholly owned subsidiary of RBA (\"US Holdings\"), Impala Merger Sub I, LLC, a Delaware limited liability company and a direct wholly owned subsidiary of US Holdings, and Impala Merger Sub II, LLC, a Delaware limited liability company and a direct wholly owned subsidiary of US Holdings,"},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"(Continued from Footnote 1) each outstanding share of the Issuer's common stock held by the Reporting Person immediately prior to the effective time of the Merger automatically and without any required action by the Reporting Person, was converted into the right to receive: (i) 0.5252 of a common share of RBA plus cash in lieu of any fractional RBA common share, and (ii) $12.80 in cash, without interest and less any required withholding taxes (the \"Merger Consideration\")."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000899243-23-009321","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/937541/000089924323009321/doc4.xml","form_type":"4"}},{"id":1943624,"issuer":{"id":115305,"kind":"organization","name":"IAA, Inc.","symbol":"IAA"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-03-21T17:45:33.000Z","date":"2023-03-20","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":24541,"ownership":{"direct":false,"nature":"By 3K Limited Partnership"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Pursuant to an Agreement and Plan of Merger and Reorganization, dated as of November 7, 2022, as amended by the Amendment to the Agreement and Plan of Merger and Reorganization, dated as of January 22, 2023 (the \"Merger Agreement\" and the transactions contemplated thereby, the \"Merger\"), by and among the Issuer, a Delaware corporation, Ritchie Bros. Auctioneers Incorporated, a company organized under the federal laws of Canada (\"RBA\"), Ritchie Bros. Holdings Inc., a Washington corporation and a direct and indirect wholly owned subsidiary of RBA (\"US Holdings\"), Impala Merger Sub I, LLC, a Delaware limited liability company and a direct wholly owned subsidiary of US Holdings, and Impala Merger Sub II, LLC, a Delaware limited liability company and a direct wholly owned subsidiary of US Holdings,"},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"(Continued from Footnote 1) each outstanding share of the Issuer's common stock held by the Reporting Person immediately prior to the effective time of the Merger automatically and without any required action by the Reporting Person, was converted into the right to receive: (i) 0.5252 of a common share of RBA plus cash in lieu of any fractional RBA common share, and (ii) $12.80 in cash, without interest and less any required withholding taxes (the \"Merger Consideration\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"These securities are owned by the 3K Limited Partnership. The Reporting Person is general partner of the limited partnership. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000899243-23-009321","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/937541/000089924323009321/doc4.xml","form_type":"4"}},{"id":1943623,"issuer":{"id":115305,"kind":"organization","name":"IAA, Inc.","symbol":"IAA"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-03-21T17:45:33.000Z","date":"2023-03-20","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":52309,"ownership":{"direct":false,"nature":"By Peter H. Kamin Childrens Trust"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Pursuant to an Agreement and Plan of Merger and Reorganization, dated as of November 7, 2022, as amended by the Amendment to the Agreement and Plan of Merger and Reorganization, dated as of January 22, 2023 (the \"Merger Agreement\" and the transactions contemplated thereby, the \"Merger\"), by and among the Issuer, a Delaware corporation, Ritchie Bros. Auctioneers Incorporated, a company organized under the federal laws of Canada (\"RBA\"), Ritchie Bros. Holdings Inc., a Washington corporation and a direct and indirect wholly owned subsidiary of RBA (\"US Holdings\"), Impala Merger Sub I, LLC, a Delaware limited liability company and a direct wholly owned subsidiary of US Holdings, and Impala Merger Sub II, LLC, a Delaware limited liability company and a direct wholly owned subsidiary of US Holdings,"},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"(Continued from Footnote 1) each outstanding share of the Issuer's common stock held by the Reporting Person immediately prior to the effective time of the Merger automatically and without any required action by the Reporting Person, was converted into the right to receive: (i) 0.5252 of a common share of RBA plus cash in lieu of any fractional RBA common share, and (ii) $12.80 in cash, without interest and less any required withholding taxes (the \"Merger Consideration\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"These securities are owned by the Peter H. Kamin Childrens Trust dated March 1997. The Reporting Person is trustee of the trust. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000899243-23-009321","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/937541/000089924323009321/doc4.xml","form_type":"4"}},{"id":1943622,"issuer":{"id":115305,"kind":"organization","name":"IAA, Inc.","symbol":"IAA"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-03-21T17:45:33.000Z","date":"2023-03-20","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":115096,"ownership":{"direct":false,"nature":"By Peter H. Kamin Revocable Trust"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Pursuant to an Agreement and Plan of Merger and Reorganization, dated as of November 7, 2022, as amended by the Amendment to the Agreement and Plan of Merger and Reorganization, dated as of January 22, 2023 (the \"Merger Agreement\" and the transactions contemplated thereby, the \"Merger\"), by and among the Issuer, a Delaware corporation, Ritchie Bros. Auctioneers Incorporated, a company organized under the federal laws of Canada (\"RBA\"), Ritchie Bros. Holdings Inc., a Washington corporation and a direct and indirect wholly owned subsidiary of RBA (\"US Holdings\"), Impala Merger Sub I, LLC, a Delaware limited liability company and a direct wholly owned subsidiary of US Holdings, and Impala Merger Sub II, LLC, a Delaware limited liability company and a direct wholly owned subsidiary of US Holdings,"},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"(Continued from Footnote 1) each outstanding share of the Issuer's common stock held by the Reporting Person immediately prior to the effective time of the Merger automatically and without any required action by the Reporting Person, was converted into the right to receive: (i) 0.5252 of a common share of RBA plus cash in lieu of any fractional RBA common share, and (ii) $12.80 in cash, without interest and less any required withholding taxes (the \"Merger Consideration\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"These securities are owned by the Peter H. Kamin Revocable Trust dated February 2003. The Reporting Person is trustee of the trust. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000899243-23-009321","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/937541/000089924323009321/doc4.xml","form_type":"4"}},{"id":1943621,"issuer":{"id":115305,"kind":"organization","name":"IAA, Inc.","symbol":"IAA"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-03-21T17:45:33.000Z","date":"2023-03-20","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":11918,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Pursuant to an Agreement and Plan of Merger and Reorganization, dated as of November 7, 2022, as amended by the Amendment to the Agreement and Plan of Merger and Reorganization, dated as of January 22, 2023 (the \"Merger Agreement\" and the transactions contemplated thereby, the \"Merger\"), by and among the Issuer, a Delaware corporation, Ritchie Bros. Auctioneers Incorporated, a company organized under the federal laws of Canada (\"RBA\"), Ritchie Bros. Holdings Inc., a Washington corporation and a direct and indirect wholly owned subsidiary of RBA (\"US Holdings\"), Impala Merger Sub I, LLC, a Delaware limited liability company and a direct wholly owned subsidiary of US Holdings, and Impala Merger Sub II, LLC, a Delaware limited liability company and a direct wholly owned subsidiary of US Holdings,"},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"(Continued from Footnote 1) each outstanding share of the Issuer's common stock held by the Reporting Person immediately prior to the effective time of the Merger automatically and without any required action by the Reporting Person, was converted into the right to receive: (i) 0.5252 of a common share of RBA plus cash in lieu of any fractional RBA common share, and (ii) $12.80 in cash, without interest and less any required withholding taxes (the \"Merger Consideration\")."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Includes shares subject to a restricted stock award that were converted at the Effective Time into the right to receive the Merger Consideration."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000899243-23-009321","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/937541/000089924323009321/doc4.xml","form_type":"4"}},{"id":2184977,"issuer":{"id":85009,"kind":"organization","name":"PSYCHEMEDICS CORP","symbol":"PMD"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, $.005 Par Value","published_at":"2022-08-16T17:36:30.000Z","date":"2022-08-12","kind":"grant","acquired":true,"shares":9000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents restricted stock units that are to be settled solely in shares of Common Stock. The units vest with respect to 50% of the shares on August 12, 2023 and with respect to the remaining 50% on August 12, 2024, so long as the recipient continues as a director of the Issuer through each such respective vesting date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The reporting person also holds 218,728 shares indirectly by the Peter H. Kamin Revocable Trust dated February 2003, 146,998 shares indirectly by the Peter H. Kamin Childrens Trust dated March 1997, and 44,980 shares indirectly by 3K Limited Partnership. The reporting person disclaims beneficial ownership of these Securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for Section 16 or any other purposes."}],"balance_after":223031,"source":{"system":"sec-edgar","filing":"0001843082-22-000035","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/806517/000184308222000035/edgar.xml","form_type":"4"}},{"id":2230599,"issuer":{"id":115305,"kind":"organization","name":"IAA, Inc.","symbol":"IAA"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-06-16T19:48:50.000Z","date":"2022-06-15","kind":"grant","acquired":true,"shares":3714,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents an annual stock retainer payable to non-employee directors, which will vest in full on the earlier of the one-year anniversary of the grant date or the day preceding the Issuer's next annual meeting of stockholders following the grant date."}],"balance_after":11918,"source":{"system":"sec-edgar","filing":"0000899243-22-022945","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/937541/000089924322022945/doc4.xml","form_type":"4"}},{"id":2230592,"issuer":{"id":9564,"kind":"organization","name":"TILE SHOP HOLDINGS, INC."},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-06-16T10:02:01.000Z","date":"2022-06-14","kind":"grant","acquired":true,"shares":41209,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of restricted stock granted pursuant to the Company's 2021 Omnibus Equity Compensation Plan, which are subject to a risk of forfeiture until the earlier of (a) the date of the Company's next annual meeting of stockholders and (b) June 14, 2023."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F7","text":"The number of shares has been adjusted to reflect a reconciliation to the reporting person's account records and includes 4,085 additional shares that were not previously reported due to administrative errors."}],"balance_after":3409384,"source":{"system":"sec-edgar","filing":"0001104659-22-071725","document":"tm2218509-4_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/937541/000110465922071725/tm2218509-4_4seq1.xml","form_type":"4"}},{"id":2293152,"issuer":{"id":85009,"kind":"organization","name":"PSYCHEMEDICS CORP","symbol":"PMD"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-04-21T15:30:00.000Z","date":"2022-04-20","kind":"purchase","acquired":true,"shares":1800,"price":6.72,"value":12096.0,"ownership":{"direct":false,"nature":"By 3K Limited Partnership"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $6.57 to $6.80 inclusive. The Reporting Person undertakes to provide 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 purchased at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"These securities are owned by 3K limited Partnership. The Reporting Person is the General Partner of the Partnership. The Reporting Person disclaims beneficial ownership of these Securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such Securities for section 16 or any other purposes."}],"balance_after":44980,"source":{"system":"sec-edgar","filing":"0000921895-22-001329","document":"form408568007_04212022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/806517/000092189522001329/form408568007_04212022.xml","form_type":"4"}},{"id":2293151,"issuer":{"id":85009,"kind":"organization","name":"PSYCHEMEDICS CORP","symbol":"PMD"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-04-21T15:30:00.000Z","date":"2022-04-20","kind":"purchase","acquired":true,"shares":3808,"price":6.72,"value":25589.76,"ownership":{"direct":false,"nature":"By Peter H. 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The Reporting Person disclaims beneficial ownership of these Securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purposes."}],"balance_after":146998,"source":{"system":"sec-edgar","filing":"0000921895-22-001329","document":"form408568007_04212022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/806517/000092189522001329/form408568007_04212022.xml","form_type":"4"}},{"id":2293150,"issuer":{"id":85009,"kind":"organization","name":"PSYCHEMEDICS CORP","symbol":"PMD"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-04-21T15:30:00.000Z","date":"2022-04-20","kind":"purchase","acquired":true,"shares":1950,"price":6.72,"value":13104.0,"ownership":{"direct":false,"nature":"By Peter H. 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The Reporting Person disclaims beneficial ownership of these Securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purposes."}],"balance_after":218728,"source":{"system":"sec-edgar","filing":"0000921895-22-001329","document":"form408568007_04212022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/806517/000092189522001329/form408568007_04212022.xml","form_type":"4"}},{"id":2293149,"issuer":{"id":85009,"kind":"organization","name":"PSYCHEMEDICS CORP","symbol":"PMD"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-04-21T15:30:00.000Z","date":"2022-04-20","kind":"purchase","acquired":true,"shares":8100,"price":6.72,"value":54432.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $6.57 to $6.80 inclusive. The Reporting Person undertakes to provide 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 purchased at each separate price within the range set forth in this footnote."}],"balance_after":214031,"source":{"system":"sec-edgar","filing":"0000921895-22-001329","document":"form408568007_04212022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/806517/000092189522001329/form408568007_04212022.xml","form_type":"4"}},{"id":2293148,"issuer":{"id":85009,"kind":"organization","name":"PSYCHEMEDICS CORP","symbol":"PMD"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-04-21T15:30:00.000Z","date":"2022-04-19","kind":"purchase","acquired":true,"shares":627,"price":6.52,"value":4088.04,"ownership":{"direct":false,"nature":"By 3K Limited Partnership"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $6.25 to $6.67 inclusive. The Reporting Person undertakes to provide 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 purchased at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"These securities are owned by 3K limited Partnership. The Reporting Person is the General Partner of the Partnership. The Reporting Person disclaims beneficial ownership of these Securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such Securities for section 16 or any other purposes."}],"balance_after":43180,"source":{"system":"sec-edgar","filing":"0000921895-22-001329","document":"form408568007_04212022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/806517/000092189522001329/form408568007_04212022.xml","form_type":"4"}},{"id":2293147,"issuer":{"id":85009,"kind":"organization","name":"PSYCHEMEDICS CORP","symbol":"PMD"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-04-21T15:30:00.000Z","date":"2022-04-19","kind":"purchase","acquired":true,"shares":15152,"price":6.52,"value":98791.04,"ownership":{"direct":false,"nature":"By Peter H. 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The Reporting Person disclaims beneficial ownership of these Securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purposes."}],"balance_after":143190,"source":{"system":"sec-edgar","filing":"0000921895-22-001329","document":"form408568007_04212022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/806517/000092189522001329/form408568007_04212022.xml","form_type":"4"}},{"id":2293146,"issuer":{"id":85009,"kind":"organization","name":"PSYCHEMEDICS CORP","symbol":"PMD"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-04-21T15:30:00.000Z","date":"2022-04-19","kind":"purchase","acquired":true,"shares":11706,"price":6.52,"value":76323.12,"ownership":{"direct":false,"nature":"By Peter H. 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The Reporting Person disclaims beneficial ownership of these Securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purposes."}],"balance_after":216778,"source":{"system":"sec-edgar","filing":"0000921895-22-001329","document":"form408568007_04212022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/806517/000092189522001329/form408568007_04212022.xml","form_type":"4"}},{"id":2299785,"issuer":{"id":85009,"kind":"organization","name":"PSYCHEMEDICS CORP","symbol":"PMD"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-04-11T09:48:31.000Z","date":"2022-04-08","kind":"purchase","acquired":true,"shares":4000,"price":6.79,"value":27160.0,"ownership":{"direct":false,"nature":"By Peter H. 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The Reporting Person disclaims beneficial ownership of these Securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purposes."}],"balance_after":205072,"source":{"system":"sec-edgar","filing":"0001171520-22-000248","document":"form408568007_04072022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/806517/000117152022000248/form408568007_04072022.xml","form_type":"4"}},{"id":2299784,"issuer":{"id":85009,"kind":"organization","name":"PSYCHEMEDICS CORP","symbol":"PMD"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2022-04-11T09:48:31.000Z","date":"2022-04-07","kind":"purchase","acquired":true,"shares":3000,"price":6.68,"value":20040.0,"ownership":{"direct":false,"nature":"By Peter H. 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The Reporting Person disclaims beneficial ownership of these Securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purposes."}],"balance_after":115635,"source":{"system":"sec-edgar","filing":"0000921895-22-000908","document":"form408568007_03182022.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/806517/000092189522000908/form408568007_03182022.xml","form_type":"4"}},{"id":2342734,"issuer":{"id":115305,"kind":"organization","name":"IAA, Inc.","symbol":"IAA"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-03-09T19:39:46.000Z","date":"2022-03-08","kind":"purchase","acquired":true,"shares":968,"price":31.93,"value":30908.24,"ownership":{"direct":false,"nature":"By Roth IRA"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. 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The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose."}],"balance_after":24281,"source":{"system":"sec-edgar","filing":"0000899243-22-009864","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/937541/000089924322009864/doc4.xml","form_type":"4"}},{"id":2345517,"issuer":{"id":115305,"kind":"organization","name":"IAA, Inc.","symbol":"IAA"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-03-08T11:11:41.000Z","date":"2022-03-07","kind":"purchase","acquired":true,"shares":4368,"price":33.41,"value":145934.88,"ownership":{"direct":false,"nature":"By Peter H. 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The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose."}],"balance_after":50100,"source":{"system":"sec-edgar","filing":"0000899243-22-007616","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/937541/000089924322007616/doc4.xml","form_type":"4"}},{"id":2376029,"issuer":{"id":115305,"kind":"organization","name":"IAA, Inc.","symbol":"IAA"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-02-24T16:14:28.000Z","date":"2022-02-22","kind":"purchase","acquired":true,"shares":5193,"price":34.86,"value":181027.98,"ownership":{"direct":false,"nature":"By Roth IRA"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. 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The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose."}],"balance_after":12000,"source":{"system":"sec-edgar","filing":"0000899243-22-007251","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/937541/000089924322007251/doc4.xml","form_type":"4"}},{"id":2383288,"issuer":{"id":115305,"kind":"organization","name":"IAA, Inc.","symbol":"IAA"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-02-22T19:13:44.000Z","date":"2022-02-17","kind":"purchase","acquired":true,"shares":35100,"price":35.61,"value":1249911.0,"ownership":{"direct":false,"nature":"By Peter H. 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The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose."}],"balance_after":35100,"source":{"system":"sec-edgar","filing":"0000899243-22-007251","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/937541/000089924322007251/doc4.xml","form_type":"4"}},{"id":2383287,"issuer":{"id":115305,"kind":"organization","name":"IAA, Inc.","symbol":"IAA"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-02-22T19:13:44.000Z","date":"2022-02-17","kind":"purchase","acquired":true,"shares":24587,"price":35.61,"value":875543.07,"ownership":{"direct":false,"nature":"By Roth IRA"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $35.19 to $36.12 inclusive. The Reporting Person undertakes to provide 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 purchased at each separate price within the range set forth in this footnote."}],"balance_after":59085,"source":{"system":"sec-edgar","filing":"0000899243-22-007251","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/937541/000089924322007251/doc4.xml","form_type":"4"}},{"id":2383286,"issuer":{"id":115305,"kind":"organization","name":"IAA, Inc.","symbol":"IAA"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-02-22T19:13:44.000Z","date":"2022-02-17","kind":"purchase","acquired":true,"shares":7848,"price":35.61,"value":279467.28,"ownership":{"direct":false,"nature":"By 3K Limited Partnership"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $35.19 to $36.12 inclusive. The Reporting Person undertakes to provide 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 purchased at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"These securities are owned by the 3K Limited Partnership. The Reporting Person is general partner of the limited partnership. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose."}],"balance_after":17656,"source":{"system":"sec-edgar","filing":"0000899243-22-007251","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/937541/000089924322007251/doc4.xml","form_type":"4"}},{"id":2383285,"issuer":{"id":115305,"kind":"organization","name":"IAA, Inc.","symbol":"IAA"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-02-22T19:13:44.000Z","date":"2022-02-17","kind":"purchase","acquired":true,"shares":16422,"price":35.61,"value":584787.42,"ownership":{"direct":false,"nature":"By Peter H. 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The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose."}],"balance_after":36946,"source":{"system":"sec-edgar","filing":"0000899243-22-007251","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/937541/000089924322007251/doc4.xml","form_type":"4"}},{"id":2383284,"issuer":{"id":115305,"kind":"organization","name":"IAA, Inc.","symbol":"IAA"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-02-22T19:13:44.000Z","date":"2022-02-17","kind":"purchase","acquired":true,"shares":36143,"price":35.61,"value":1287052.23,"ownership":{"direct":false,"nature":"By Peter H. 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The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose."}],"balance_after":81313,"source":{"system":"sec-edgar","filing":"0000899243-22-007251","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/937541/000089924322007251/doc4.xml","form_type":"4"}},{"id":2389626,"issuer":{"id":115305,"kind":"organization","name":"IAA, Inc.","symbol":"IAA"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-02-17T16:35:32.000Z","date":"2022-02-16","kind":"purchase","acquired":true,"shares":6012,"price":35.72,"value":214748.64,"ownership":{"direct":false,"nature":"By Roth IRA"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $35.68 to $35.85 inclusive. 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These shares were purchased in multiple transactions at prices ranging from $35.68 to $35.85 inclusive. The Reporting Person undertakes to provide 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 purchased at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"These securities are owned by the 3K Limited Partnership. The Reporting Person is general partner of the limited partnership. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose."}],"balance_after":9808,"source":{"system":"sec-edgar","filing":"0000899243-22-006791","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/937541/000089924322006791/doc4.xml","form_type":"4"}},{"id":2389624,"issuer":{"id":115305,"kind":"organization","name":"IAA, Inc.","symbol":"IAA"},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-02-17T16:35:32.000Z","date":"2022-02-16","kind":"purchase","acquired":true,"shares":3802,"price":35.72,"value":135807.44,"ownership":{"direct":false,"nature":"By Peter H. 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These shares were purchased in multiple transactions at prices ranging from $1.71 to $1.65 inclusive. The reporting person undertakes to provide Tile Shop Holdings, Inc., any security holder of Tile Shop Holdings, Inc. or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 21,499 shares of restricted stock granted pursuant to the Company's 2012 Omnibus Award Plan, which are subject to a risk of forfeiture until the earlier of (a) the date of the Company's next annual meeting of stockholders and (b) July 16, 2020."}],"balance_after":3232654,"source":{"system":"sec-edgar","filing":"0000914190-19-000403","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/937541/000091419019000403/edgar.xml","form_type":"4"}},{"id":3382502,"issuer":{"id":9564,"kind":"organization","name":"TILE SHOP HOLDINGS, INC."},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2019-11-04T16:32:27.000Z","date":"2019-11-04","kind":"purchase","acquired":true,"shares":10384,"price":1.66,"value":17237.44,"ownership":{"direct":false,"nature":"By 3K Limited Partnership"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1.71 to $1.61 inclusive. The reporting person undertakes to provide Tile Shop Holdings, Inc., any security holder of Tile Shop Holdings, Inc. or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"These securities are owned by the 3K Limited Partnership.  The reporting person is general partner of the limited partnership.  The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for Section 16 or any other purpose."}],"balance_after":329501,"source":{"system":"sec-edgar","filing":"0001624404-19-000020","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/937541/000162440419000020/edgar.xml","form_type":"4"}},{"id":3382501,"issuer":{"id":9564,"kind":"organization","name":"TILE SHOP HOLDINGS, INC."},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2019-11-04T16:32:27.000Z","date":"2019-11-01","kind":"purchase","acquired":true,"shares":2325,"price":1.7,"value":3952.5,"ownership":{"direct":false,"nature":"By 3K Limited Partnership"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1.71 to $1.68 inclusive. The reporting person undertakes to provide Tile Shop Holdings, Inc., any security holder of Tile Shop Holdings, Inc. or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"These securities are owned by the 3K Limited Partnership.  The reporting person is general partner of the limited partnership.  The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for Section 16 or any other purpose."}],"balance_after":319117,"source":{"system":"sec-edgar","filing":"0001624404-19-000020","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/937541/000162440419000020/edgar.xml","form_type":"4"}},{"id":3382500,"issuer":{"id":9564,"kind":"organization","name":"TILE SHOP HOLDINGS, INC."},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2019-11-04T16:32:27.000Z","date":"2019-10-31","kind":"purchase","acquired":true,"shares":12242,"price":1.63,"value":19954.46,"ownership":{"direct":false,"nature":"By 3K Limited Partnership"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1.70 to $1.55 inclusive. The reporting person undertakes to provide Tile Shop Holdings, Inc., any security holder of Tile Shop Holdings, Inc. or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"These securities are owned by the 3K Limited Partnership.  The reporting person is general partner of the limited partnership.  The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for Section 16 or any other purpose."}],"balance_after":316792,"source":{"system":"sec-edgar","filing":"0001624404-19-000020","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/937541/000162440419000020/edgar.xml","form_type":"4"}},{"id":3382499,"issuer":{"id":9564,"kind":"organization","name":"TILE SHOP HOLDINGS, INC."},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2019-11-04T16:32:27.000Z","date":"2019-11-04","kind":"purchase","acquired":true,"shares":43147,"price":1.66,"value":71624.02,"ownership":{"direct":false,"nature":"By Peter H. Kamin Childrens Trust"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1.71 to $1.61 inclusive. The reporting person undertakes to provide Tile Shop Holdings, Inc., any security holder of Tile Shop Holdings, Inc. or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"These securities are owned by the Peter H. Kamin Childrens Trust dated March 1997.  The reporting person is trustee of the trust.  The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for Section 16 or any other purpose."}],"balance_after":1017106,"source":{"system":"sec-edgar","filing":"0001624404-19-000020","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/937541/000162440419000020/edgar.xml","form_type":"4"}},{"id":3382498,"issuer":{"id":9564,"kind":"organization","name":"TILE SHOP HOLDINGS, INC."},"owners":[{"id":78857,"kind":"person","name":"Kamin Peter","position":1,"cik":"0000937541","reported_name":"Kamin Peter","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2019-11-04T16:32:27.000Z","date":"2019-11-01","kind":"purchase","acquired":true,"shares":10499,"price":1.7,"value":17848.3,"ownership":{"direct":false,"nature":"By Peter H. Kamin Childrens Trust"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1.71 to $1.68 inclusive. The reporting person undertakes to provide Tile Shop Holdings, Inc., any security holder of Tile Shop Holdings, Inc. or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"These securities are owned by the Peter H. Kamin Childrens Trust dated March 1997.  The reporting person is trustee of the trust.  The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for Section 16 or any other purpose."}],"balance_after":973959,"source":{"system":"sec-edgar","filing":"0001624404-19-000020","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/937541/000162440419000020/edgar.xml","form_type":"4"}}],"next_cursor":"2019-11-04T16:32:27.000000Z,3382498"}