Insider trading

Period: 12 months Stock: GLW Plan: Not on a plan × + Add filter Clear all
Views & alerts

Save your view. Keep the filter you have built, and get an email when a new filing matches it. A free account does both.

When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

34 decisions over 12 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

34 decisions over 12 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

34 decisions over 12 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

34 decisions over 12 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
34 decisions over 12 months Remove this filter
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
34 decisions over 12 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

34 decisions over 12 months
Stock
Insider
Type ?
Why it stands out
4 Sep 2026
Gullo Michelle L Senior Vice President & CHRO
Sold at will
$1.50M 9,874 at 152.29
51.3%
Sold half or more
28 Aug 2026
STEVERSON LEWIS A Vice Chairman, EVP and CLAO
Sold at will
$1.98M 13,100 at 151.29
46.5%
Not planned
9 Jun 2026
WEEKS WENDELL P Chairman, CEO and President
Sold at will
$18.65M 100,000 at 186.46
9.9%
Not planned
22 May 2026
Amin Jaymin SVP and Chief Tech. Officer
Sold at will
$5.26M 27,395 at 192.14
22.5%
Not planned
15 May 2026
Nelson Avery H III Executive Vice President & COO
Sold at will
$3.92M 20,000 at 195.93
22.2%
Not planned
13 May 2026
Verkleeren Ronald L SVP Emerging Innovations Group
Sold at will
$2.08M 10,000 at 207.77
17.2%
Not planned
11 May 2026
Seetharam Soumya Senior Vice President & CDIO
Sold at will
$4.12M 20,000 at 206.23
43.9%
Not planned
11 May 2026
Zhang John Z Exec. Vice President & CCDO
Sold at will
$1.98M 10,000 at 198.34
66.1%
Sold half or more
11 May 2026
TILLMAN MICHAUNE D SVP and General Counsel
Sold at will
$674.87K 3,260 at 207.02
24.3%
Not planned
8 May 2026
STEVERSON LEWIS A Vice Chairman, EVP and CLAO
Sold at will
$5.44M 27,750 at 196.06
49.6%
Not planned
8 May 2026
Becker Stefan SVP, Finance & Corp Controller
Sold at will
$3.95M 21,000 at 188.08
74.3%
Sold half or more
8 May 2026
Gullo Michelle L Senior Vice President & CHRO
Sold at will
$1.00M 5,315 at 189.03
12.4%
Not planned
7 May 2026
Schlesinger Edward A Exec. Vice President and CFO
Sold at will
$4.20M 22,562 at 186.08
25.7%
Not planned
6 May 2026
Zhang John Z Exec. Vice President & CCDO
Sold at will
$2.77M 15,000 at 184.67
49.8%
Not planned
26 Feb 2026
WEEKS WENDELL P Chairman, CEO and President
Sold at will
$21.37M 137,514 at 155.37
15.5%
Not planned
13 Feb 2026
Gullo Michelle L Senior Vice President & CHRO
Sold at will
$76.96K 587 at 131.11
1.6%
Not planned
12 Feb 2026
Zhang John Z Exec. Vice President & CCDO
Sold at will
$204.76K 1,531 at 133.75
100%
Sold half or more
12 Feb 2026
Gullo Michelle L Senior Vice President & CHRO · indirect
Sold at will
$5.98K 44 at 135.83
100%
Sold half or more
11 Feb 2026
Nelson Avery H III Executive Vice President & COO
Sold at will
$203.80K 1,583 at 128.74
2.6%
Not planned
10 Feb 2026
STEVERSON LEWIS A Vice Chairman, EVP and CLAO
Sold at will
$2.00M 15,366 at 130.22
81.6%
Sold half or more
9 Feb 2026
Sold at will
$3.83M 30,000 at 127.67
91.5%
Sold half or more
9 Feb 2026
Musser Eric S Retired President
Sold at will
$1.95M 15,000 at 130.25
75.3%
Sold half or more
9 Feb 2026
Nelson Avery H III Executive Vice President & COO
Sold at will
$812.72K 6,262 at 129.79
9.3%
Not planned
4 Feb 2026
Fang Li SVP, Corning Intl & NBD, Solar
Sold at will
$1.11M 9,797 at 113.51
100%
Sold half or more
2 Feb 2026
Musser Eric S Retired President
Sold at will
$2.75M 25,000 at 110.00
55.6%
Sold half or more
2 Feb 2026
O'Day Michael Paul SVP and GM, Optical Comm.
Sold at will
$558.23K 5,051 at 110.52
14.4%
Not planned
29 Jan 2026
Schlesinger Edward A Exec. Vice President and CFO
Sold at will
$2.21M 21,104 at 104.55
27.8%
Not planned
29 Jan 2026
Gullo Michelle L Senior Vice President & CHRO · indirect
Sold at will
$4.51K 44 at 102.40
100%
Sold half or more
10 Dec 2025
Verkleeren Ronald L SVP Emerging Innovations Group
Sold at will
$1.99M 21,000 at 94.69
37.8%
Not planned
10 Dec 2025
Seetharam Soumya Senior Vice President & CDIO
Sold at will
$1.50M 16,547 at 90.78
49.7%
Not planned
31 Oct 2025
STEVERSON LEWIS A Vice Chairman, EVP and CLAO
Sold at will
$2.06M 23,142 at 89.05
56.8%
Sold half or more
31 Oct 2025
Schlesinger Edward A Exec. Vice President and CFO
Sold at will
$1.91M 20,893 at 91.25
23.8%
Not planned
29 Oct 2025
Musser Eric S Retired President
Sold at will
$9.02M 100,000 at 90.17
69.0%
Sold half or more
29 Oct 2025
Becker Stefan SVP, Finance & Corp Controller
Sold at will
$1.10M 12,100 at 91.28
70.6%
Sold half or more
Showing 1–34 of 34.