Corning SVP sells 5,315 shares in open market

Corning Inc. senior executive Michelle L. Gullo reported an open-market sale of company stock.

Rhea-AI Filing Summary

Corning Inc. senior executive Michelle L. Gullo reported an open-market sale of company stock. On May 8, 2026, the Senior Vice President & CHRO sold 5,315 shares of Corning common stock in a non-derivative, open-market transaction at a weighted average price of $189.029 per share. After this sale, she directly holds 37,636 shares of Corning stock. The shares were sold in multiple trades at prices ranging from $188.94 to $189.17.

Insights

Equity analyst

Corning’s CHRO made a modest open-market stock sale, leaving a sizeable remaining stake.

Senior Vice President & CHRO Michelle L. Gullo sold 5,315 Corning common shares in an open-market transaction at a weighted average price of $189.029 on May 8, 2026. The transaction involved only non-derivative shares, with no option exercises or conversions reported.

Following the sale, she directly holds 37,636 shares, indicating she retains a significant position in Corning. The filing describes a weighted average sale price, with trades executed between $188.94 and $189.17, which is typical for larger orders filled in multiple lots. Overall, this appears as a routine insider sale rather than a transformational event.

Insider Trade Summary

Net Seller: 5,315 shares

Net Sell 1 txn

Insider Gullo Michelle L

Role Senior Vice President & CHRO

Sold 5,315 shs ($1.00M)

Type	Security	Shares	Price	Value
Sale	Common Stock	5,315	$189.029	$1.00M

Holdings After Transaction: Common Stock — 37,636 shares (Direct)

Footnotes (1)

1. F1. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $188.94 to $189.17 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.

Key Figures

Shares sold: 5,315 shares Weighted average sale price: $189.029 per share Post-transaction holdings: 37,636 shares +2 more

5 metrics

Shares sold 5,315 shares Open-market sale on May 8, 2026

Weighted average sale price $189.029 per share Common stock sale on May 8, 2026

Post-transaction holdings 37,636 shares Direct ownership after sale

Sale price range $188.94–$189.17 per share Prices across multiple trades in the sale

Net shares sold 5,315 shares Net buy/sell direction reported as net-sell

Key Terms

open-market sale, weighted average price, non-derivative, Senior Vice President & CHRO, +1 more

5 terms

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

weighted average price financial

"The price reported in column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

non-derivative financial

""transaction_type": "non-derivative""

Senior Vice President & CHRO financial

""officer_title": "Senior Vice President & CHRO""

Form 4 regulatory

"INSIDER FILING DATA (Form 4):"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

FAQ

What insider transaction did Corning (GLW) report for Michelle L. Gullo?

Corning (GLW) reported that Senior Vice President & CHRO Michelle L. Gullo sold 5,315 shares of common stock in an open-market transaction. The sale used a weighted average price of $189.029 per share, based on multiple trades within a narrow price range.

At what price did the Corning (GLW) executive sell her shares?

The Corning (GLW) executive’s sale was reported at a weighted average price of $189.029 per share. According to the disclosure, individual trades occurred in a tight range between $188.94 and $189.17, reflecting normal execution across multiple transactions on the same day.

How many Corning (GLW) shares does Michelle L. Gullo hold after the sale?

After the reported transaction, Senior Vice President & CHRO Michelle L. Gullo directly holds 37,636 shares of Corning common stock. This post-transaction holding shows she maintains a meaningful ownership stake in the company following the open-market sale of 5,315 shares.

Was the Corning (GLW) insider transaction a buy or a sell?

The Form 4 filing shows a sale by the insider. It records an open-market sale of 5,315 Corning common shares by Senior Vice President & CHRO Michelle L. Gullo on May 8, 2026, coded as a non-derivative transaction with direction classified as “sell.”

Did the Corning (GLW) Form 4 include any derivative or option exercises?

No derivative or option exercises were reported in this Corning (GLW) Form 4. The transaction involves only non-derivative common stock, classified as an open-market sale. The derivative summary in the filing is empty, indicating no new option exercises or conversions disclosed in this report.

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Accepted by SEC EDGAR 05/08/2026 - 04:02 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Gullo Michelle L

(Last) (First) (Middle)

1 RIVERFRONT PLAZA

(Street)

CORNING NEW YORK 14831

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
CORNING INC /NY [ GLW ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Senior Vice President & CHRO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/08/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/08/2026		S		5,315	D	$189.029(1)	37,636	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $188.94 to $189.17 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.

	Melissa J. Gambol, Power of Attorney	05/08/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)