{"entity":{"type":"insider","cik":"0001603592","url":"/insider/0001603592","json_url":"/insider/0001603592.json","name":"Mastandrea Christine J","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":10,"n_filings":8,"first":"2014-11-13","last":"2022-10-04","span_basis":"filed_date"},"name_variants":[{"name":"Mastandrea Christine J","source":"filing","n_filings":8,"first_seen":"2014-11-13","last_seen":"2022-10-04"}],"transactions":[{"id":6570422,"accession":"0001437749-22-023521","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001437749-22-023521","line_url":"/filing/0001437749-22-023521#line-1","is_derivative":false,"issuer_cik":"0001175535","issuer_name":"Whitestone REIT","issuer_ticker":"WSR","issuer_name_source":null,"issuer_url":"/issuer/0001175535","owner_cik":"0001603592","owner_name":"Mastandrea Christine J","owner_display_name":"Mastandrea Christine J","owner_url":"/insider/0001603592","role":"Officer (Chief Operating Officer)","role_mark":"O","role_mark_label":"Officer (Chief Operating Officer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"Chief Operating Officer","security_title":"Common Shares","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":500.0,"shares_display":"500","price_per_share":8.5576,"price_display":"8.56","price_state":"stated","total_value":4278.8,"total_display":"4,278.80","total_whole":"4,279","shares_owned_after":305808.0,"shares_owned_after_display":"305,808","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-09-30","filed_date":"2022-10-04","scope":"insider"},{"id":2087795,"accession":"0001175535-20-000093","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001175535-20-000093","line_url":"/filing/0001175535-20-000093#line-2","is_derivative":false,"issuer_cik":"0001175535","issuer_name":"Whitestone REIT","issuer_ticker":"WSR","issuer_name_source":null,"issuer_url":"/issuer/0001175535","owner_cik":"0001603592","owner_name":"Mastandrea Christine J","owner_display_name":"Mastandrea Christine J","owner_url":"/insider/0001603592","role":"Officer (EVP CORPORATE STRATEGY)","role_mark":"O","role_mark_label":"Officer (EVP CORPORATE STRATEGY)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"EVP CORPORATE STRATEGY","security_title":"Common Shares","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":0.0,"shares_display":"0","price_per_share":0.0,"price_display":null,"price_state":"not-stated","total_value":0.0,"total_display":null,"total_whole":null,"shares_owned_after":1221932.0,"shares_owned_after_display":"1,221,932","ownership_form":"I","is_10b5_1":null,"transaction_date":"2020-06-30","filed_date":"2020-07-01","scope":"insider"},{"id":6654926,"accession":"0001171843-18-001712","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001171843-18-001712","line_url":"/filing/0001171843-18-001712#line-1","is_derivative":false,"issuer_cik":"0001175535","issuer_name":"Whitestone REIT","issuer_ticker":"WSR","issuer_name_source":null,"issuer_url":"/issuer/0001175535","owner_cik":"0001603592","owner_name":"Mastandrea Christine J","owner_display_name":"Mastandrea Christine J","owner_url":"/insider/0001603592","role":"Officer (VP CORPORATE STRATEGY)","role_mark":"O","role_mark_label":"Officer (VP CORPORATE STRATEGY)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"VP CORPORATE STRATEGY","security_title":"Common Shares","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":2500.0,"shares_display":"2,500","price_per_share":10.65,"price_display":"10.65","price_state":"stated","total_value":26625.0,"total_display":"26,625.00","total_whole":"26,625","shares_owned_after":695873.0,"shares_owned_after_display":"695,873","ownership_form":"I","is_10b5_1":null,"transaction_date":"2018-03-05","filed_date":"2018-03-05","scope":"insider"},{"id":3048693,"accession":"0001171843-16-011897","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001171843-16-011897","line_url":"/filing/0001171843-16-011897#line-1","is_derivative":false,"issuer_cik":"0001175535","issuer_name":"Whitestone REIT","issuer_ticker":"WSR","issuer_name_source":null,"issuer_url":"/issuer/0001175535","owner_cik":"0001603592","owner_name":"Mastandrea Christine J","owner_display_name":"Mastandrea Christine J","owner_url":"/insider/0001603592","role":"Officer (VP CORPORATE STRATEGY)","role_mark":"O","role_mark_label":"Officer (VP CORPORATE STRATEGY)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"VP CORPORATE STRATEGY","security_title":"Common Shares","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":2000.0,"shares_display":"2,000","price_per_share":14.56,"price_display":"14.56","price_state":"stated","total_value":29120.0,"total_display":"29,120.00","total_whole":"29,120","shares_owned_after":756526.0,"shares_owned_after_display":"756,526","ownership_form":"I","is_10b5_1":null,"transaction_date":"2016-08-19","filed_date":"2016-08-22","scope":"insider"},{"id":8714389,"accession":"0001171843-15-004520","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001171843-15-004520","line_url":"/filing/0001171843-15-004520","is_derivative":false,"issuer_cik":"0001175535","issuer_name":"Whitestone REIT","issuer_ticker":"WSR","issuer_name_source":null,"issuer_url":"/issuer/0001175535","owner_cik":"0001603592","owner_name":"Mastandrea Christine J","owner_display_name":"Mastandrea Christine J","owner_url":"/insider/0001603592","role":"Officer (VP CORPORATE STRATEGY)","role_mark":"O","role_mark_label":"Officer (VP CORPORATE STRATEGY)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"VP CORPORATE STRATEGY","security_title":"Common Shares","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":2000.0,"shares_display":"2,000","price_per_share":12.9534,"price_display":"12.95","price_state":"stated","total_value":25906.8,"total_display":"25,906.80","total_whole":"25,907","shares_owned_after":459729.0,"shares_owned_after_display":"459,729","ownership_form":"I","is_10b5_1":null,"transaction_date":"2015-08-07","filed_date":"2015-08-10","scope":"insider","n_lines":2},{"id":8714379,"accession":"0001171843-15-002830","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001171843-15-002830","line_url":"/filing/0001171843-15-002830","is_derivative":false,"issuer_cik":"0001175535","issuer_name":"Whitestone REIT","issuer_ticker":"WSR","issuer_name_source":null,"issuer_url":"/issuer/0001175535","owner_cik":"0001603592","owner_name":"Mastandrea Christine J","owner_display_name":"Mastandrea Christine J","owner_url":"/insider/0001603592","role":"Officer (VP STRATEGY & MARKET RESEARCH)","role_mark":"O","role_mark_label":"Officer (VP STRATEGY & MARKET RESEARCH)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"VP STRATEGY & MARKET RESEARCH","security_title":"Common Shares","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":1500.0,"shares_display":"1,500","price_per_share":14.166666666666666,"price_display":"14.17","price_state":"stated","total_value":21250.0,"total_display":"21,250.00","total_whole":"21,250","shares_owned_after":370374.0,"shares_owned_after_display":"370,374","ownership_form":"I","is_10b5_1":null,"transaction_date":"2015-05-12","filed_date":"2015-05-13","scope":"insider","n_lines":2},{"id":8299080,"accession":"0001171843-15-002861","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001171843-15-002861","line_url":"/filing/0001171843-15-002861#line-1","is_derivative":false,"issuer_cik":"0001175535","issuer_name":"Whitestone REIT","issuer_ticker":"WSR","issuer_name_source":null,"issuer_url":"/issuer/0001175535","owner_cik":"0001603592","owner_name":"Mastandrea Christine J","owner_display_name":"Mastandrea Christine J","owner_url":"/insider/0001603592","role":"Officer (VP Corporate Strategy)","role_mark":"O","role_mark_label":"Officer (VP Corporate Strategy)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"VP Corporate Strategy","security_title":"Common Shares","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":1000.0,"shares_display":"1,000","price_per_share":14.32,"price_display":"14.32","price_state":"stated","total_value":14320.0,"total_display":"14,320.00","total_whole":"14,320","shares_owned_after":371874.0,"shares_owned_after_display":"371,874","ownership_form":"I","is_10b5_1":null,"transaction_date":"2015-05-12","filed_date":"2015-05-14","scope":"insider"},{"id":6282683,"accession":"0001171843-14-005545","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001171843-14-005545","line_url":"/filing/0001171843-14-005545#line-1","is_derivative":false,"issuer_cik":"0001175535","issuer_name":"Whitestone REIT","issuer_ticker":"WSR","issuer_name_source":null,"issuer_url":"/issuer/0001175535","owner_cik":"0001603592","owner_name":"Mastandrea Christine J","owner_display_name":"Mastandrea Christine J","owner_url":"/insider/0001603592","role":"Officer (VP STRATEGY & MARKET RESEARCH)","role_mark":"O","role_mark_label":"Officer (VP STRATEGY & MARKET RESEARCH)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"VP STRATEGY & MARKET RESEARCH","security_title":"Common Shares","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":1000.0,"shares_display":"1,000","price_per_share":15.09,"price_display":"15.09","price_state":"stated","total_value":15090.0,"total_display":"15,090.00","total_whole":"15,090","shares_owned_after":214596.0,"shares_owned_after_display":"214,596","ownership_form":"I","is_10b5_1":null,"transaction_date":"2014-11-13","filed_date":"2014-11-13","scope":"insider"}],"collapsed":true,"next_cursor":null,"ledger_fault":false,"count":{"value":10,"kind":"exact"},"open_market_only":false,"composition":{"kind":"exact","rows":[{"code":"P","label":"Open-market purchase","n":10,"open_market":true},{"code":"S","label":"Open-market sale","n":0,"open_market":true},{"code":"M","label":"Option exercise","n":0,"open_market":false},{"code":"A","label":"Grant or award","n":0,"open_market":false},{"code":"F","label":"Tax withholding","n":0,"open_market":false},{"code":"D","label":"Disposition to the issuer","n":0,"open_market":false},{"code":"X","label":"In-the-money option exercise","n":0,"open_market":false}],"total":10},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001175535","name":"Whitestone REIT","url":"/issuer/0001175535","role":"Officer (Chief Operating Officer)","n_filings":8,"first_seen":"2014-11-13","last_seen":"2022-10-04"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001603592","retrieved_at":"2026-08-23T04:25:21+00:00","coverage":{"filings":1506293,"transactions":4290787,"issuers":28597,"insiders":152303,"first_filed_date":"2003-06-30","last_filed_date":"2026-08-21","last_ingest":"2026-08-22T05:23:40.159918+00:00","counts_are":{"filings":"estimate","transactions":"estimate","issuers":"estimate","insiders":"estimate"},"source":"SEC EDGAR Form 4 filings, parsed by ebomi","fault":false},"license":{"underlying_records":"US SEC filings are public records of the United States government and are not subject to copyright. The transactional facts in them are not ours to license.","this_presentation":"The parsing, normalisation, curation, and presentation are ebomi's own work.","grant":"undecided","grant_note":"The open licence for ebomi's own layer is an open owner decision (SPEC-20260731T1159Z open question 3: CC BY 4.0 or CC0 with a citation request). Until it is taken, no grant is asserted here.","citation_request":"Balogh, A. Insider trading. Scientific Data 10, 237 (2023)","url":"https://ebomi.com/license"},"fair_use":{"policy":"These JSON endpoints are open and unauthenticated. Please read them at a human pace, identify your client in the User-Agent header, and use the published dataset for bulk work rather than crawling page by page.","bulk_alternative":"doi:10.1038/s41597-023-02147-6"}}