SEC Form 4
Corning Incorporated (GLW) insider trading
In the 12 months to Oct 24, 2026, 15 GLW insiders reported open-market sales of $112.2M across 33 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $112.2M
- 33 filings · 15 insiders
- Open-market purchases
- $0
- 0 filings
Who traded GLW, and when
- Sale
GLW daily close from Oct 24, 2025 to Oct 23, 2026, between $78.03 and $255.69, last $123.69. 33 sale and 0 purchase filings by 15 insiders, marked at their filing dates. Wendell P. Weeks, Chairman, CEO and President: sold $40.0M across 2 filings, first filed Feb 27, 2026, last Jun 9, 2026. Eric S. Musser, Other: sold $13.7M across 3 filings, first filed Oct 30, 2025, last Feb 9, 2026. Lewis A. Steverson, Vice Chairman, EVP and CLAO: sold $11.5M across 4 filings, first filed Nov 3, 2025, last Aug 31, 2026. Edward A. Schlesinger, Exec. Vice President and CFO: sold $8.3M across 3 filings, first filed Nov 3, 2025, last May 7, 2026. Soumya Seetharam, Senior Vice President & CDIO: sold $5.6M across 2 filings, first filed Dec 11, 2025, last May 12, 2026. Jaymin Amin, SVP and Chief Tech. Officer: sold $5.3M across 1 filing, first filed May 26, 2026, last May 26, 2026. 9 others: sold $27.8M across 18 filings, first filed Oct 30, 2025, last Sep 8, 2026.
Largest mark · tap a row for others
Wendell P. Weeks · Chairman, CEO and President
Sale $21,365,839
137,514 shares at $155.37 avg
Filed Feb 27, 2026 · traded Feb 26
Close on filing date $150.38
Wendell P. Weeks · Chairman, CEO and President
Chairman, CEO and President
$40.0M soldEric S. Musser · Other
Other
$13.7M soldLewis A. Steverson · Vice Chairman, EVP and CLAO
Vice Chairman, EVP and CLAO
$11.5M soldEdward A. Schlesinger · Exec. Vice President and CFO
Exec. Vice President and CFO
$8.3M soldSoumya Seetharam · Senior Vice President & CDIO
Senior Vice President & CDIO
$5.6M soldJaymin Amin · SVP and Chief Tech. Officer
SVP and Chief Tech. Officer
$5.3M sold9 others
Combined, one mark per week
$27.8M soldHas Corning Incorporated's CEO sold stock?
Yes. Wendell P. Weeks (CEO) sold 237,514 shares ($40.0M) between Feb 2026 and Jun 2026.
Open-market trades
33 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Wendell P. Weeks | Chairman, CEO and President | $40.0M | — | 2 | — | |
| Eric S. Musser | Other | $13.7M | — | 3 | — | |
| Lewis A. Steverson | Vice Chairman, EVP and CLAO | $11.5M | — | 4 | — | |
| Edward A. Schlesinger | Exec. Vice President and CFO | $8.3M | — | 3 | — | |
| Soumya Seetharam | Senior Vice President & CDIO | $5.6M | — | 2 | — | |
| Jaymin Amin | SVP and Chief Tech. Officer | $5.3M | — | 1 | — | |
| Stefan Becker | SVP, Finance & Corp Controller | $5.1M | — | 2 | — | |
| John Z. Zhang | Exec. Vice President & CCDO | $5.0M | — | 3 | — | |
| Avery H. Nelson III | Executive Vice President & COO | $4.9M | — | 3 | — | |
| Ronald L. Verkleeren | SVP Emerging Innovations Group | $4.1M | — | 2 | — | |
| Jordana Daryl Kammerud | SVP | $3.8M | — | 1 | — | |
| Michelle L. Gullo | Senior Vice President & CHRO | $2.6M | — | 4 | — | |
| Li Fang | SVP, Corning Intl & NBD, Solar | $1.1M | — | 1 | — | |
| Michaune D. Tillman | SVP and General Counsel | $674.9K | — | 1 | — | |
| Michael Paul O'Day | SVP and GM, Optical Comm. | $558.2K | — | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Michelle L. Gullo Senior Vice President & CHRO | Sale | 9,874 | $152.29 | $1.5M | 9,384 | |
traded | Lewis A. Steverson Vice Chairman, EVP and CLAO | Sale | 13,100 | $151.29 | $2.0M | 15,052 | |
traded | Wendell P. Weeks Chairman, CEO and President | Sale | 100,000 | $186.46 | $18.6M | 908,353 | |
traded | Jaymin Amin SVP and Chief Tech. Officer | Sale | 27,395 | $192.14 | $5.3M | 94,400 | |
traded | Avery H. Nelson III Executive Vice President & COO | Sale | 20,000 | $195.93 | $3.9M | 70,059 | |
traded | Ronald L. Verkleeren SVP Emerging Innovations Group | Sale | 10,000 | $207.77 | $2.1M | 48,143 | |
traded | John Z. Zhang Exec. Vice President & CCDO | Sale | 10,000 | $198.34 | $2.0M | 5,138 | |
traded | Soumya Seetharam Senior Vice President & CDIO | Sale | 20,000 | $206.23 | $4.1M | 25,570 | |
traded | Michaune D. Tillman SVP and General Counsel | Sale | 3,260 | $207.02 | $674.9K | 10,174 | |
traded | Stefan Becker SVP, Finance & Corp Controller | Sale | 21,000 | $188.08 | $3.9M | 7,263 | |
traded | Michelle L. Gullo Senior Vice President & CHRO | Sale | 5,315 | $189.03 | $1.0M | 37,636 | |
traded | Lewis A. Steverson Vice Chairman, EVP and CLAO | Sale | 27,750 | $196.06 | $5.4M | 28,152 | |
traded | Edward A. Schlesinger Exec. Vice President and CFO | Sale | 22,562 | $186.08 | $4.2M | 65,264 | |
traded | John Z. Zhang Exec. Vice President & CCDO | Sale | 15,000 | $184.67 | $2.8M | 15,138 | |
traded | Wendell P. Weeks Chairman, CEO and President | Sale | 137,514 | $155.37 | $21.4M | 750,585 | |
traded | Michelle L. Gullo Senior Vice President & CHRO | Sale | 631 | $131.44 | $82.9K | Multiple accounts | |
traded | Avery H. Nelson III Executive Vice President & COO | Sale | 1,583 | $128.74 | $203.8K | 59,788 | |
traded | John Z. Zhang Exec. Vice President & CCDO | Sale | 1,531 | $133.75 | $204.8K | 0 | |
traded | Avery H. Nelson III Executive Vice President & COO | Sale | 6,262 | $129.79 | $812.7K | 61,371 | |
traded | Lewis A. Steverson Vice Chairman, EVP and CLAO | Sale | 15,366 | $130.22 | $2.0M | 3,461 | |
traded | Eric S. Musser Other | Sale | 15,000 | $130.25 | $2.0M | 4,926 | |
traded | Jordana Daryl Kammerud SVP | Sale | 30,000 | $127.67 | $3.8M | 2,772 | |
traded | Li Fang SVP, Corning Intl & NBD, Solar | Sale | 9,797 | $113.51 | $1.1M | 0 | |
traded | Eric S. Musser Other | Sale | 25,000 | $110.00 | $2.8M | 19,926 | |
traded | Michael Paul O'Day SVP and GM, Optical Comm. | Sale | 5,051 | $110.52 | $558.2K | 29,915 | |
traded | Michelle L. Gullo Senior Vice President & CHRO | Sale | 44 | $102.40 | $4.5K | 0 | |
traded | Edward A. Schlesinger Exec. Vice President and CFO | Sale | 21,104 | $104.55 | $2.2M | 54,780 | |
traded | Soumya Seetharam Senior Vice President & CDIO | Sale | 16,547 | $90.78 | $1.5M | 16,756 | |
traded | Ronald L. Verkleeren SVP Emerging Innovations Group | Sale | 21,000 | $94.69 | $2.0M | 34,500 | |
traded | Edward A. Schlesinger Exec. Vice President and CFO | Sale | 20,893 | $91.25 | $1.9M | 66,959 | |
traded | Lewis A. Steverson Vice Chairman, EVP and CLAO | Sale | 23,142 | $89.05 | $2.1M | 17,575 | |
traded | Eric S. Musser Other | Sale | 100,000 | $90.17 | $9.0M | 44,926 | |
traded | Stefan Becker SVP, Finance & Corp Controller | Sale | 12,100 | $91.28 | $1.1M | 5,049 |
GET /stocks/filings/vX/form-4?tickers=GLW&filing_date.gte=2025-10-24&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"GLW"
],
"issuer_cik": "0000024741",
"owner_cik": "0002096996",
"accession_number": "0000024741-26-000259",
"form_type": "4",
"filing_date": "2026-09-08",
"period_of_report": "2026-09-04",
"issuer_name": "CORNING INC /NY",
"issuer_trading_symbol": "GLW",
"owner_name": "Gullo Michelle L",
"is_officer": true,
"officer_title": "Senior Vice President & CHRO",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-09-04",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 9874,
"transaction_price_per_share": 152.2902,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 9384,
"transaction_value": 1503713.4348,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $151.9935 to $152.55 inclusive. The reporting person undertakes to provide to Corning Incorporated, any security holder of Corning Incorporated, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth previously in the footnote."
}
]
},
{
"tickers": [
"GLW"
],
"issuer_cik": "0000024741",
"owner_cik": "0001508144",
"accession_number": "0000024741-26-000257",
"form_type": "4",
"filing_date": "2026-08-31",
"period_of_report": "2026-08-28",
"issuer_name": "CORNING INC /NY",
"issuer_trading_symbol": "GLW",
"owner_name": "STEVERSON LEWIS A",
"is_officer": true,
"officer_title": "Vice Chairman, EVP and CLAO",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-28",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 13100,
"transaction_price_per_share": 151.2923,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 15052,
"transaction_value": 1981929.1300000001,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $150.84 to $151.80, inclusive. The reporting person undertakes to provide to Corning Incorporated, any security holder of Corning Incorporated, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth previously in this footnote."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 155 records
- Option exercises97 records
- Tax withholding49 records
- Grants and awards1 record
- Gifts6 records
- Other2 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for GLW every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.