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CORNING INC /NY (GLW) S&P 500 XNYS DRAWING & INSULATING OF NONFERROUS WIRE Net insider selling (90d)
Latest GLW Insider Trades
About CORNING INC /NY (GLW) Corning is a provider of glass, ceramics, and optical fiber across six distinct end markets. Corning's largest segments by revenue are display glass for TVs and optical fiber for telecom networks and data centers. It also provides cover glass for smartphones as well as filters and substrates and glass for cars, produces pharmaceutical glass, and produces polysilicon for solar panels. Corning is a US producer and is vertically integrated across its products and markets.
Headquarters CORNING, NY
Employees 67,200
Listed 1945
Exchange XNYS https://www.corning.com SEC filings for GLW on EDGAR
90-Day SEC Filing Activity Form 4 transaction type Transactions Shares Total value Open-market sale 1 100,000 $18.65M Grant or award 4 620 Option exercise 2 200,000
GLW Insider Transactions (Form 4) 75 180 Form 4 filings on record, the earliest from Oct 1, 2024, newest first. Filing history page 1 of 3.
Date Insider Transaction Security Shares Price Value Jun 30, 2026 KM Kevin J. Martin - Director Grant or award Restricted Stock Unit
Recent GLW Form 8-K Filings 5
Recent GLW Form 144 Notices of Proposed Sale 3 A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
Filed Filer Relationship Shares Market value Notice Aug 28, 2026 Lewis Steverson Officer 13,100 $1.98M View on EDGAR Jun 9, 2026 - -
GLW Insider Trading - FAQ
What is the latest insider trade for GLW? CORNING INC /NY (GLW) had 6 insider filings in the last 90 days, with the most recent on 2026-07-01. The full record for GLW runs to 180 Form 4 filings, the earliest from 2024-10-01. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
How many insiders are buying GLW stock? No insider purchases of GLW were filed in the last 90 days.
How many insiders are selling GLW stock? 1 insider sale of GLW was filed in the last 90 days, totaling $18.65M.
Where can I see GLW SEC filings (Form 4, 10-K, 10-Q, 8-K)? This page tracks GLW Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
How can I follow GLW insider buys? Create a free InsiderAlpha account and press Watch on this page to add GLW to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
More Materials Companies with Insider Activity Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
Related Companies - Recent Insider Activity What is SEC Form 4? The filing insiders must submit within two business days of a trade, and how to read its transaction codes. Track GLW insider activity as it files Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
Sign up free May 22, 2026
Market cap $128.33B
P/E ratio 67.90
Dividend yield 0.75%
Average volume 13.76M
52 week high $271.78
52 week low $66.14
Today's high $152.67
Today's low $148.06
Open $150.99
Volume 6.15M
Previous close $152.80
Shares outstanding 861.39M Market cap
$128.33B
67,200 employees
GLW Insider Sentiment - Last 90 Days Share of open-market insider dollar volume that was buying versus selling, from SEC Form 4 filings.
0% Buying 100% Selling
0 insider purchases totaling $0 against 1 sale totaling $18.65M.
Most-Active GLW Insiders - Last 90 Days 10 Tax withholding / forfeiture 1 18,378
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
Jun 30, 2026 SB Stephanie Burns - Director Grant or award Restricted Stock Unit 161 $255.43 $41K
Jun 22, 2026 MG Michelle L. Gullo - Officer Tax withholding / forfeiture Common Stock 18,378 $209.83 $3.86M
Jun 9, 2026 WW Wendell P. Weeks - Officer Option exercise Common Stock 100,000 $27.03 $2.70M
Jun 9, 2026 WW Wendell P. Weeks - Officer Open-market sale Common Stock 100,000 $186.46 $18.65M
Jun 9, 2026 WW Wendell P. Weeks - Officer Option exercise Stock Options (Right to Buy) 100,000 $0.00 -
May 22, 2026 JA Jaymin Amin - Officer Open-market sale Common Stock 27,395 $192.14 $5.26M
May 22, 2026 JA Jaymin Amin - Officer Option exercise Common Stock 7,917 $27.00 $214K
May 22, 2026 JA Jaymin Amin - Officer Option exercise Stock Options (Right to Buy) 7,917 $0.00 -
May 14, 2026 LF Li Fang - Officer Option exercise Common Stock 8,725 $19.65 $171K
May 14, 2026 LF Li Fang - Officer Option exercise Stock Appreciation Rights (SAR) 8,725 $0.00 -
May 11, 2026 SS Soumya Seetharam - Officer Open-market sale Common Stock 20,000 $206.23 $4.12M
May 11, 2026 JZ John Z. Zhang - Officer Open-market sale Common Stock 10,000 $198.34 $1.98M
May 8, 2026 MG Michelle L. Gullo - Officer Open-market sale Common Stock 5,315 $189.03 $1.00M
May 8, 2026 SB Stefan Becker - Officer Open-market sale Common Stock 21,000 $188.08 $3.95M
May 6, 2026 JZ John Z. Zhang - Officer Open-market sale Common Stock 15,000 $184.67 $2.77M
May 4, 2026 MT Michaune D. Tillman - Officer Tax withholding / forfeiture Common Stock 2,946 $159.96 $471K
Apr 29, 2026 SB Stefan Becker - Officer Option exercise Common Stock 674 $0.00 -
Apr 29, 2026 SB Stefan Becker - Officer Option exercise Common Stock 619 $0.00 -
Apr 29, 2026 SB Stefan Becker - Officer Option exercise Common Stock 1,073 $0.00 -
Apr 29, 2026 SB Stefan Becker - Officer Option exercise Common Stock 429 $0.00 -
Apr 29, 2026 SB Stefan Becker - Officer Tax withholding / forfeiture Common Stock 2,795 $151.90 $425K
Apr 29, 2026 SB Stefan Becker - Officer Option exercise Restricted Stock Unit 674 $0.00 -
Apr 29, 2026 SB Stefan Becker - Officer Option exercise Restricted Stock Unit 619 $0.00 -
Apr 29, 2026 SB Stefan Becker - Officer Option exercise Performance Share Unit 1,073 $0.00 -
Apr 29, 2026 SB Stefan Becker - Officer Option exercise Performance Share Unit 429 $0.00 -
Apr 28, 2026 MO Michael Paul O'Day - Officer Tax withholding / forfeiture Common Stock 3,496 $153.05 $535K
Apr 15, 2026 WW Wendell P. Weeks - Officer Option exercise Common Stock 235,610 $0.00 -
Apr 15, 2026 WW Wendell P. Weeks - Officer Option exercise Common Stock 104,474 $0.00 -
Apr 15, 2026 WW Wendell P. Weeks - Officer Tax withholding / forfeiture Common Stock 165,622 $168.27 $27.87M
Apr 15, 2026 WW Wendell P. Weeks - Officer Option exercise Performance Share Unit 235,610 $0.00 -
Apr 15, 2026 WW Wendell P. Weeks - Officer Option exercise Restricted Stock Unit 104,474 $0.00 -
Apr 15, 2026 JZ John Z. Zhang - Officer Option exercise Common Stock 42,687 $0.00 -
Apr 15, 2026 JZ John Z. Zhang - Officer Option exercise Common Stock 18,884 $0.00 -
Apr 15, 2026 JZ John Z. Zhang - Officer Tax withholding / forfeiture Common Stock 31,433 $168.27 $5.29M
Apr 15, 2026 JZ John Z. Zhang - Officer Option exercise Performance Share Unit 42,687 $0.00 -
Apr 15, 2026 JZ John Z. Zhang - Officer Option exercise Restricted Stock Unit 18,884 $0.00 -
Apr 15, 2026 RV Ronald L. Verkleeren - Officer Tax withholding / forfeiture Common Stock 22,843 $168.27 $3.84M
Apr 15, 2026 LS Lewis A. Steverson - Officer Tax withholding / forfeiture Common Stock 49,786 $168.27 $8.38M
Apr 15, 2026 LS Lewis A. Steverson - Officer Option exercise Performance Share Unit 71,118 $0.00 -
Apr 15, 2026 LS Lewis A. Steverson - Officer Option exercise Restricted Stock Unit 31,109 $0.00 -
Apr 15, 2026 SS Soumya Seetharam - Officer Option exercise Performance Share Unit 31,046 $0.00 -
Apr 15, 2026 SS Soumya Seetharam - Officer Tax withholding / forfeiture Common Stock 17,622 $168.27 $2.97M
Apr 15, 2026 SS Soumya Seetharam - Officer Option exercise Restricted Stock Unit 13,734 $0.00 -
Apr 15, 2026 MO Michael Paul O'Day - Officer Tax withholding / forfeiture Common Stock 8,410 $168.27 $1.42M
Apr 15, 2026 MO Michael Paul O'Day - Officer Option exercise Performance Share Unit 14,092 $0.00 -
Apr 15, 2026 AI Avery H. Nelson III - Officer Tax withholding / forfeiture Common Stock 28,740 $168.27 $4.84M
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HECLA MINING CO/DE/
Wendell P. Weeks - OfficerOpen-market sale$18.65M
Kevin J. Martin - Director
