{"latest_checked": "2026-09-22T04:33:25.005386+00:00", "coverage_count": 5044, "recent_count": 16, "transaction_limit": 160, "filters": {"q": "", "ticker": "MTRN", "sector": "", "industry": "", "side": "", "start": "2026-08-08", "end": "2026-09-22"}, "summary": {"total": 16, "acquisition_count": 11, "disposal_count": 5, "acquisition_value": 0.0, "acquisition_value_label": "$0", "disposal_value": 705532.052, "disposal_value_label": "$705.5K", "net_value": -705532.052, "net_value_label": "$-705.5K", "flow_tone": "negative", "largest_value_label": "$470.3K", "top_sector": "Basic Materials", "window_label": "08 Aug 2026 to 22 Sep 2026"}, "charts": {"sectors": [{"ticker__sector": "Basic Materials", "count": 16, "value": "705532.0520", "bar_width": 100.0, "sector_slug": "basic-materials", "value_label": "$705.5K"}], "days": [{"transaction_date": "2026-08-10", "acquisitions": 1, "disposals": 1, "total": 2, "bar_width": 22.2}, {"transaction_date": "2026-08-21", "acquisitions": 0, "disposals": 1, "total": 1, "bar_width": 11.1}, {"transaction_date": "2026-08-31", "acquisitions": 1, "disposals": 2, "total": 3, "bar_width": 33.3}, {"transaction_date": "2026-09-01", "acquisitions": 0, "disposals": 1, "total": 1, "bar_width": 11.1}, {"transaction_date": "2026-09-04", "acquisitions": 9, "disposals": 0, "total": 9, "bar_width": 100.0}], "side_mix": {"acquisitions": 11, "disposals": 5, "acquisition_share": 68.8, "disposal_share": 31.2}}, "company_flows": [{"symbol": "MTRN", "name": "Materion Corporation", "sector": "Basic Materials", "industry": "Other Industrial Metals & Mining", "sector_url": "https://sharemaestro.com/insider-activity/sectors/basic-materials/", "industry_url": "https://sharemaestro.com/insider-activity/sectors/basic-materials/industries/other-industrial-metals-mining/", "latest_transaction": "2026-09-01", "acquisitions": 0, "disposals": 2, "acquired_value": 0.0, "acquired_value_label": "$0", "disposed_value": 705532.052, "disposed_value_label": "$705.5K", "net_value": -705532.052, "net_value_label": "$-705.5K", "acquisition_share": 0.0, "disposal_share": 100.0, "detail_url": "https://sharemaestro.com/insider-activity/company/mtrn/", "research_links": {"chart": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/", "report": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/report/", "factor": "/factors/ticker/d5c91975-5220-49c2-8d7e-a38bc404f120/"}}], "company_overview": [{"symbol": "MTRN", "name": "Materion Corporation", "sector": "Basic Materials", "industry": "Other Industrial Metals & Mining", "exchange": "NYSE", "country": "US", "sector_url": "https://sharemaestro.com/insider-activity/sectors/basic-materials/", "industry_url": "https://sharemaestro.com/insider-activity/sectors/basic-materials/industries/other-industrial-metals-mining/", "latest_transaction": "2026-09-04", "filings": 16, "acquisitions": 11, "disposals": 5, "acquired_value": 0.0, "acquired_value_label": "$0", "disposed_value": 705532.052, "disposed_value_label": "$705.5K", "net_value": -705532.052, "net_value_label": "$-705.5K", "acquisition_share": 68.8, "disposal_share": 31.2, "tone": "Net acquisition", "tone_class": "positive", "detail_url": "https://sharemaestro.com/insider-activity/company/mtrn/", "research_links": {"chart": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/", "report": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/report/", "factor": "/factors/ticker/d5c91975-5220-49c2-8d7e-a38bc404f120/"}}], "transactions": [{"symbol": "MTRN", "name": "Materion Corporation", "exchange": "NYSE", "country": "US", "sector": "Basic Materials", "industry": "Other Industrial Metals & Mining", "transaction_date": "2026-09-04", "executive": "CHADWICK, SHELLY MARIE", "executive_title": "Vice President, Finance & CFO", "security_type": "Restricted Stock Units", "side_code": "A", "side": "Acquisition", "shares": 8.0, "share_price": 0.0, "transaction_value": null, "transaction_value_label": "Not reported", "evidence_class": "equity_award", "evidence_class_label": "Equity compensation", "evidence_quality": "Context", "fetched_at": "2026-09-22T03:59:58.116156+00:00", "detail_url": "https://sharemaestro.com/insider-activity/company/mtrn/", "research_links": {"chart": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/", "report": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/report/", "factor": "/factors/ticker/d5c91975-5220-49c2-8d7e-a38bc404f120/"}}, {"symbol": "MTRN", "name": "Materion Corporation", "exchange": "NYSE", "country": "US", "sector": "Basic Materials", "industry": "Other Industrial Metals & Mining", "transaction_date": "2026-09-04", "executive": "CHEMNITZ, GREGORY R.", "executive_title": "VP General Counsel & Secretary", "security_type": "Restricted Stock Units", "side_code": "A", "side": "Acquisition", "shares": 2.0, "share_price": 0.0, "transaction_value": null, "transaction_value_label": "Not reported", "evidence_class": "equity_award", "evidence_class_label": "Equity compensation", "evidence_quality": "Context", "fetched_at": "2026-09-22T03:59:58.126966+00:00", "detail_url": "https://sharemaestro.com/insider-activity/company/mtrn/", "research_links": {"chart": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/", "report": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/report/", "factor": "/factors/ticker/d5c91975-5220-49c2-8d7e-a38bc404f120/"}}, {"symbol": "MTRN", "name": "Materion Corporation", "exchange": "NYSE", "country": "US", "sector": "Basic Materials", "industry": "Other Industrial Metals & Mining", "transaction_date": "2026-09-04", "executive": "FASHINPAUR, MELISSA A", "executive_title": "Chief Accounting Officer", "security_type": "Restricted Stock Units", "side_code": "A", "side": "Acquisition", "shares": 1.0, "share_price": 0.0, "transaction_value": null, "transaction_value_label": "Not reported", "evidence_class": "equity_award", "evidence_class_label": "Equity compensation", "evidence_quality": "Context", "fetched_at": "2026-09-22T03:59:58.124107+00:00", "detail_url": "https://sharemaestro.com/insider-activity/company/mtrn/", "research_links": {"chart": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/", "report": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/report/", "factor": "/factors/ticker/d5c91975-5220-49c2-8d7e-a38bc404f120/"}}, {"symbol": "MTRN", "name": "Materion Corporation", "exchange": "NYSE", "country": "US", "sector": "Basic Materials", "industry": "Other Industrial Metals & Mining", "transaction_date": "2026-09-04", "executive": "KHILNANI, VINOD M", "executive_title": "Director", "security_type": "Common Stock", "side_code": "A", "side": "Acquisition", "shares": 11.784, "share_price": 0.0, "transaction_value": null, "transaction_value_label": "Not reported", "evidence_class": "common_equity", "evidence_class_label": "Common equity", "evidence_quality": "Context", "fetched_at": "2026-09-22T03:59:58.105218+00:00", "detail_url": "https://sharemaestro.com/insider-activity/company/mtrn/", "research_links": {"chart": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/", "report": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/report/", "factor": "/factors/ticker/d5c91975-5220-49c2-8d7e-a38bc404f120/"}}, {"symbol": "MTRN", "name": "Materion Corporation", "exchange": "NYSE", "country": "US", "sector": "Basic Materials", "industry": "Other Industrial Metals & Mining", "transaction_date": "2026-09-04", "executive": "LIGGETT, EMILY M", "executive_title": "Director", "security_type": "Common Stock", "side_code": "A", "side": "Acquisition", "shares": 0.75, "share_price": 0.0, "transaction_value": null, "transaction_value_label": "Not reported", "evidence_class": "common_equity", "evidence_class_label": "Common equity", "evidence_quality": "Context", "fetched_at": "2026-09-22T03:59:58.129725+00:00", "detail_url": "https://sharemaestro.com/insider-activity/company/mtrn/", "research_links": {"chart": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/", "report": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/report/", "factor": "/factors/ticker/d5c91975-5220-49c2-8d7e-a38bc404f120/"}}, {"symbol": "MTRN", "name": "Materion Corporation", "exchange": "NYSE", "country": "US", "sector": "Basic Materials", "industry": "Other Industrial Metals & Mining", "transaction_date": "2026-09-04", "executive": "PHILLIPPY, ROBERT J", "executive_title": "Director", "security_type": "Common Stock", "side_code": "A", "side": "Acquisition", "shares": 7.082, "share_price": 0.0, "transaction_value": null, "transaction_value_label": "Not reported", "evidence_class": "common_equity", "evidence_class_label": "Common equity", "evidence_quality": "Context", "fetched_at": "2026-09-22T03:59:58.110287+00:00", "detail_url": "https://sharemaestro.com/insider-activity/company/mtrn/", "research_links": {"chart": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/", "report": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/report/", "factor": "/factors/ticker/d5c91975-5220-49c2-8d7e-a38bc404f120/"}}, {"symbol": "MTRN", "name": "Materion Corporation", "exchange": "NYSE", "country": "US", "sector": "Basic Materials", "industry": "Other Industrial Metals & Mining", "transaction_date": "2026-09-04", "executive": "PREVOST, PATRICK M.", "executive_title": "Director", "security_type": "Common Stock", "side_code": "A", "side": "Acquisition", "shares": 9.652, "share_price": 0.0, "transaction_value": null, "transaction_value_label": "Not reported", "evidence_class": "common_equity", "evidence_class_label": "Common equity", "evidence_quality": "Context", "fetched_at": "2026-09-22T03:59:58.121147+00:00", "detail_url": "https://sharemaestro.com/insider-activity/company/mtrn/", "research_links": {"chart": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/", "report": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/report/", "factor": "/factors/ticker/d5c91975-5220-49c2-8d7e-a38bc404f120/"}}, {"symbol": "MTRN", "name": "Materion Corporation", "exchange": "NYSE", "country": "US", "sector": "Basic Materials", "industry": "Other Industrial Metals & Mining", "transaction_date": "2026-09-04", "executive": "SHULAR, CRAIG S", "executive_title": "Director", "security_type": "Common Stock", "side_code": "A", "side": "Acquisition", "shares": 31.14, "share_price": 0.0, "transaction_value": null, "transaction_value_label": "Not reported", "evidence_class": "common_equity", "evidence_class_label": "Common equity", "evidence_quality": "Context", "fetched_at": "2026-09-22T03:59:58.118346+00:00", "detail_url": "https://sharemaestro.com/insider-activity/company/mtrn/", "research_links": {"chart": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/", "report": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/report/", "factor": "/factors/ticker/d5c91975-5220-49c2-8d7e-a38bc404f120/"}}, {"symbol": "MTRN", "name": "Materion Corporation", "exchange": "NYSE", "country": "US", "sector": "Basic Materials", "industry": "Other Industrial Metals & Mining", "transaction_date": "2026-09-04", "executive": "VIJAYVARGIYA, JUGAL K.", "executive_title": "Director, President and CEO", "security_type": "Restricted Stock Units", "side_code": "A", "side": "Acquisition", "shares": 11.0, "share_price": 0.0, "transaction_value": null, "transaction_value_label": "Not reported", "evidence_class": "equity_award", "evidence_class_label": "Equity compensation", "evidence_quality": "Context", "fetched_at": "2026-09-22T03:59:58.113220+00:00", "detail_url": "https://sharemaestro.com/insider-activity/company/mtrn/", "research_links": {"chart": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/", "report": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/report/", "factor": "/factors/ticker/d5c91975-5220-49c2-8d7e-a38bc404f120/"}}, {"symbol": "MTRN", "name": "Materion Corporation", "exchange": "NYSE", "country": "US", "sector": "Basic Materials", "industry": "Other Industrial Metals & Mining", "transaction_date": "2026-09-01", "executive": "LIGGETT, EMILY M", "executive_title": "Director", "security_type": "Common Stock", "side_code": "D", "side": "Disposal", "shares": 1012.0, "share_price": 232.421, "transaction_value": 235210.052, "transaction_value_label": "$235.2K", "evidence_class": "common_equity", "evidence_class_label": "Common equity", "evidence_quality": "Directional", "fetched_at": "2026-09-22T03:59:58.132528+00:00", "detail_url": "https://sharemaestro.com/insider-activity/company/mtrn/", "research_links": {"chart": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/", "report": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/report/", "factor": "/factors/ticker/d5c91975-5220-49c2-8d7e-a38bc404f120/"}}, {"symbol": "MTRN", "name": "Materion Corporation", "exchange": "NYSE", "country": "US", "sector": "Basic Materials", "industry": "Other Industrial Metals & Mining", "transaction_date": "2026-08-31", "executive": "TOTH, ROBERT B", "executive_title": "Director", "security_type": "Common Stock", "side_code": "D", "side": "Disposal", "shares": 28832.0, "share_price": 0.0, "transaction_value": null, "transaction_value_label": "Not reported", "evidence_class": "common_equity", "evidence_class_label": "Common equity", "evidence_quality": "Context", "fetched_at": "2026-09-21T04:01:23.472424+00:00", "detail_url": "https://sharemaestro.com/insider-activity/company/mtrn/", "research_links": {"chart": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/", "report": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/report/", "factor": "/factors/ticker/d5c91975-5220-49c2-8d7e-a38bc404f120/"}}, {"symbol": "MTRN", "name": "Materion Corporation", "exchange": "NYSE", "country": "US", "sector": "Basic Materials", "industry": "Other Industrial Metals & Mining", "transaction_date": "2026-08-31", "executive": "TOTH, ROBERT B", "executive_title": "Director", "security_type": "Common Stock", "side_code": "A", "side": "Acquisition", "shares": 28832.0, "share_price": 0.0, "transaction_value": null, "transaction_value_label": "Not reported", "evidence_class": "common_equity", "evidence_class_label": "Common equity", "evidence_quality": "Context", "fetched_at": "2026-09-21T04:01:23.465160+00:00", "detail_url": "https://sharemaestro.com/insider-activity/company/mtrn/", "research_links": {"chart": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/", "report": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/report/", "factor": "/factors/ticker/d5c91975-5220-49c2-8d7e-a38bc404f120/"}}, {"symbol": "MTRN", "name": "Materion Corporation", "exchange": "NYSE", "country": "US", "sector": "Basic Materials", "industry": "Other Industrial Metals & Mining", "transaction_date": "2026-08-31", "executive": "KHILNANI, VINOD M", "executive_title": "Director", "security_type": "Common Stock", "side_code": "D", "side": "Disposal", "shares": 2000.0, "share_price": 235.161, "transaction_value": 470322.0, "transaction_value_label": "$470.3K", "evidence_class": "common_equity", "evidence_class_label": "Common equity", "evidence_quality": "Directional", "fetched_at": "2026-09-21T04:01:23.469398+00:00", "detail_url": "https://sharemaestro.com/insider-activity/company/mtrn/", "research_links": {"chart": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/", "report": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/report/", "factor": "/factors/ticker/d5c91975-5220-49c2-8d7e-a38bc404f120/"}}, {"symbol": "MTRN", "name": "Materion Corporation", "exchange": "NYSE", "country": "US", "sector": "Basic Materials", "industry": "Other Industrial Metals & Mining", "transaction_date": "2026-08-21", "executive": "LIGGETT, EMILY M", "executive_title": "Director", "security_type": "Common Stock", "side_code": "D", "side": "Disposal", "shares": 1609.0, "share_price": 0.0, "transaction_value": null, "transaction_value_label": "Not reported", "evidence_class": "common_equity", "evidence_class_label": "Common equity", "evidence_quality": "Context", "fetched_at": "2026-09-11T03:25:13.208471+00:00", "detail_url": "https://sharemaestro.com/insider-activity/company/mtrn/", "research_links": {"chart": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/", "report": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/report/", "factor": "/factors/ticker/d5c91975-5220-49c2-8d7e-a38bc404f120/"}}, {"symbol": "MTRN", "name": "Materion Corporation", "exchange": "NYSE", "country": "US", "sector": "Basic Materials", "industry": "Other Industrial Metals & Mining", "transaction_date": "2026-08-10", "executive": "TOTH, ROBERT B", "executive_title": "Director", "security_type": "Common Stock", "side_code": "A", "side": "Acquisition", "shares": 28832.0, "share_price": 0.0, "transaction_value": null, "transaction_value_label": "Not reported", "evidence_class": "common_equity", "evidence_class_label": "Common equity", "evidence_quality": "Context", "fetched_at": "2026-08-31T03:41:52.363380+00:00", "detail_url": "https://sharemaestro.com/insider-activity/company/mtrn/", "research_links": {"chart": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/", "report": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/report/", "factor": "/factors/ticker/d5c91975-5220-49c2-8d7e-a38bc404f120/"}}, {"symbol": "MTRN", "name": "Materion Corporation", "exchange": "NYSE", "country": "US", "sector": "Basic Materials", "industry": "Other Industrial Metals & Mining", "transaction_date": "2026-08-10", "executive": "TOTH, ROBERT B", "executive_title": "Director", "security_type": "Common Stock", "side_code": "D", "side": "Disposal", "shares": 28832.0, "share_price": 0.0, "transaction_value": null, "transaction_value_label": "Not reported", "evidence_class": "common_equity", "evidence_class_label": "Common equity", "evidence_quality": "Context", "fetched_at": "2026-08-31T03:41:52.361174+00:00", "detail_url": "https://sharemaestro.com/insider-activity/company/mtrn/", "research_links": {"chart": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/", "report": "/terminal/d5c91975-5220-49c2-8d7e-a38bc404f120/report/", "factor": "/factors/ticker/d5c91975-5220-49c2-8d7e-a38bc404f120/"}}], "disclaimer": "Educational market research only. Not financial, investment, trading, tax, or legal advice."}