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GICS sector · 124 companies · 49 industries · 2026

Materials Stocks: Insider Trading & 8-K Events

Chemicals, metals & mining, construction materials, and packaging, commodity-cycle exposure surfaced through XBRL revenue and margin data.

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Materials in the last 90 days

In the last 90 days, officers and directors of Materials companies bought $6.1M and sold $203.1M of their own stock on the open market (57 purchases vs 185 sales). The 124 tracked companies filed 303 8-K reports, including 55 leadership changes and 38 material agreements or acquisitions.

  • Largest net insider buying: Huntsman CORP (HUN), $981K net.
  • 4 cluster buys (3+ insiders, $250K+): FUL, CC, MATW, UAMY.
  • Median revenue growth (latest fiscal year, 107 companies): +5.3%, 6th of 11 sectors.

Source: SEC Form 4 (officers and directors, open-market codes P/S) and 8-K filings via EDGAR. Updated hourly.

Insider buying · 90d
$6.1M
2.9% of insider $ · 9th of 12
Cluster buys
4
3+ insiders, $250K+
8-K reports · 90d
303
55 leadership · 38 deals · 3 red flags
Median revenue growth
+5.3%
6th of 11 sectors

Top insider buys

Materials officers and directors, open-market purchases, last 90 days

  1. 1ECLEcolab1 buyer · $7.2M sold$1.0M
  2. 2HUNHuntsman CORP1 buyer$981K
  3. 3FULFULLER H B CO7 buyers · $593K sold$621K
  4. 4CMCCOMMERCIAL METALS Co2 buyers$604K
  5. 5CMCLCaledonia Mining Corp Plc1 buyer$493K
  6. 6CCChemours Co7 buyers$489K
  7. 7MATWMATTHEWS INTERNATIONAL CORP3 buyers$318K
  8. 8UAMYUNITED STATES ANTIMONY CORP4 buyers$299K

Most active 8-K filers

Materials current reports in the last 90 days

  1. 1CTVACorteva16 filings
  2. 2USARUSA Rare Earth, Inc.2 leadership · 1 13D10 filings
  3. 3MLMMartin Marietta Materials2 leadership · 1 13D10 filings
  4. 4CTGOContango ORE, Inc.8 filings
  5. 5MOSMosaic Company (The)1 leadership7 filings
  6. 6UAMYUNITED STATES ANTIMONY CORP2 leadership7 filings
  7. 7MATWMATTHEWS INTERNATIONAL CORP3 leadership6 filings
  8. 8WORWORTHINGTON ENTERPRISES, INC.1 leadership6 filings

Rank every Materials company by insider buying, 8-K events, 13D stakes and revenue growth on the live sector board. Free to start.

Latest Materials SEC filings

10-K, 10-Q and 8-K filings in the last 30 days

Materials sector FAQ

Are insiders buying Materials stocks?

In the last 90 days, officers and directors of Materials companies made 57 open-market purchases worth $6.1M and 185 sales worth $203.1M. Buying was 2.9% of insider dollar volume, 9th highest of 12 sectors. The largest net buyer was Huntsman CORP (HUN) at $981K. Most insider selling is routine (taxes, diversification, 10b5-1 plans), so purchases carry more signal.

Which Materials companies had cluster insider buying?

4 companies had three or more insiders buy at least $250K in total over the last 90 days: FULLER H B CO (FUL) (7 buyers, $621K), Chemours Co (CC) (7 buyers, $489K), MATTHEWS INTERNATIONAL CORP (MATW) (3 buyers, $318K), UNITED STATES ANTIMONY CORP (UAMY) (4 buyers, $299K).

What 8-K events did Materials companies report recently?

Materials companies filed 303 8-Ks in the last 90 days: 55 with executive or director changes (Item 5.02), 38 material agreements or acquisitions (Items 1.01 and 2.01) and 3 red-flag items such as bankruptcy, delisting notices, auditor changes, restatements or cybersecurity incidents. The most active filer was Corteva (CTVA) with 16 8-Ks.

How many Materials companies does SignalX track?

SignalX tracks 124 SEC-reporting Materials companies across 49 industries, led by Gold and Silver Ores (12), Metal Mining (12), Mining & Quarrying of Nonmetallic Minerals (No Fuels) (10). Each company page shows its latest 10-K, 10-Q and 8-K filings with AI summaries, insider trades and 13F institutional holders.

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Materials companies by industry

124 SEC-reporting companies with filings, insider trades and 13F holders

Plastic Materials, Synth Resins & Nonvulcan Elastomers(5)

Rolling Drawing & Extruding of Nonferrous Metals(3)

Primary Production of Aluminum(2)

Millwood, Veneer, Plywood, & Structural Wood Members(2)

Miscellaneous Chemical Products(2)

Converted Paper & Paperboard Prods (No Contaners/Boxes)(2)

Paints, Varnishes, Lacquers, Enamels & Allied Prods(2)

Nonferrous Foundries (Castings)(2)

Lumber & Wood Products (No Furniture)(2)

Miscellaneous Manufacturing Industries(1)

Glass Products, Made of Purchased Glass(1)

Drawing & Insulating of Nonferrous Wire(1)

Paperboard Mills(1)

Secondary Smelting & Refining of Nonferrous Metals(1)

Agricultural Production-Crops(1)

Miscellaneous Primary Metal Products(1)

Soap, Detergents, Cleang Preparations, Perfumes, Cosmetics(1)

Miscellaneous Metal Ores(1)

Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose(1)

Adhesives & Sealants(1)

Tires & Inner Tubes(1)

Metal Shipping Barrels, Drums, Kegs & Pails(1)

Wholesale-Chemicals & Allied Products(1)

Metal Forgings & Stampings(1)

Glass Containers(1)

Miscellaneous Products of Petroleum & Coal(1)

Retail-Building Materials, Hardware, Garden Supply(1)

Concrete Products, Except Block & Brick(1)

Mineral Royalty Traders(1)

Flat Glass(1)

Sawmills & Planting Mills, General(1)

Primary Smelting & Refining of Nonferrous Metals(1)

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