[Form 4] Corning Incorporated Insider Trading Activity

Rhea-AI Filing Summary

MGIC Investment Corp. (MTG) – Form 4 insider transaction

President & COO Salvatore A. Miosi disclosed the sale of 30,000 shares of common stock on 01-Jul-2025 at a weighted-average price of $28.152 per share, generating roughly $0.84 million in proceeds. The disposition was executed under a Rule 10b5-1 trading plan adopted on 06-Mar-2025, indicating the sale was pre-scheduled and not necessarily driven by near-term information.

After the transaction, Miosi directly owns 279,401.361 shares and indirectly controls 384,844 shares via a family trust, maintaining a sizable equity stake. No derivative security activity was reported, and the filing contains no references to earnings, major corporate events, or strategic changes.

The filing primarily records a routine adjustment to the executive’s equity exposure; in isolation, it is unlikely to materially affect the company’s fundamental outlook.

Positive

• Sale executed under a Rule 10b5-1 plan, reducing concerns about opportunistic insider trading.
• Executive retains significant ownership—279,401 direct and 384,844 indirect shares—maintaining alignment with shareholders.

Negative

• Disposition of 30,000 shares by the President & COO represents a cash realisation of roughly $0.84 million.
• Direct ownership dilution may be interpreted by some investors as a mildly negative sentiment signal.

Insights

Securities Analyst

TL;DR Pre-planned 30k-share sale by MTG COO is modest and leaves large stake; overall market impact neutral.

The transaction represents approximately 4–5 % of the executive’s combined direct and indirect holdings. Because it was carried out under a Rule 10b5-1 plan, the signalling value is limited. Proceeds of roughly $0.84 million suggest personal diversification rather than a statement on valuation. With no derivative activity or concurrent corporate news, I view the filing as routine and not a catalyst for valuation change.

Corporate Governance Expert

TL;DR Scheduled sale aligns with governance best practices; minor share reduction poses low governance risk.

Utilising a pre-established 10b5-1 plan mitigates concerns about selective disclosure or opportunistic trading and demonstrates compliance discipline. The officer still holds over 660k shares, maintaining strong alignment with shareholder interests. From a governance perspective, the event is non-problematic and should not influence proxy advisory stances.

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^*

BURNS STEPHANIE

(Last) (First) (Middle)

ONE RIVERFRONT PLAZA

(Street)

CORNING NY 14831

(City) (State) (Zip)

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

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

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
06/30/2025

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

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

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

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								56,888	D
Common Stock								107	I	By Trust

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
Restricted Stock Unit	(1)							(2)	(2)	Common Stock	1,045		1,045	D
Restricted Stock Unit	(1)							(2)	(2)	Common Stock	1,817		1,817	D
Restricted Stock Unit	(3)							(2)	(2)	Common Stock	51,047		51,047	D
Restricted Stock Unit	(4)	06/30/2025		A		731		(5)	(5)	Common Stock	731	$52.59	25,397	D

Explanation of Responses:

1. Each restricted stock unit represents a contingent right to receive one share of Corning Incorporated common stock.

2. Conversion of restricted stock units to the Company's common stock and distribution of such stock is deferred until a specific date as elected by the participant or termination of service as a Corning director.

3. Represents annual equity retainer in the form of restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Corning Incorporated common stock.

4. Represents restricted stock units (RSUs) granted under the Non-Employee Directors' Deferred Compensation Plan. Each RSU represents a contingent right to receive one share of Corning Incorporated common stock.

5. Conversion of restricted stock units to the Company's common stock and distribution of such stock under the Non-Employee Directors' Deferred Compensation Plan is deferred until a specific date as elected by the participant or termination of service as a Corning director.

	Melissa J. Gambol, Power of Attorney	07/02/2025
	** 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.

FAQ

How many MGIC (MTG) shares did President & COO Salvatore Miosi sell on 1 Jul 2025?

He sold 30,000 shares of MGIC common stock.

At what price were the MTG shares sold according to the Form 4?

The weighted-average sale price was $28.152 per share, with trades ranging from $27.80 to $28.34.

What trading plan covered the MTG insider sale disclosed on July 1, 2025?

The sale was executed under a Rule 10b5-1 trading plan adopted on 06-Mar-2025.

How many MGIC shares does Salvatore Miosi own after the transaction?

He owns 279,401.361 shares directly and 384,844 shares indirectly through a family trust.

Is any derivative security activity reported in this MTG Form 4?

No derivative securities were acquired or disposed of; Table II is blank.

When was the Rule 10b5-1 plan adopted by the MTG executive?

The plan was adopted on 06-Mar-2025.