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person · Reporting owner

Martin Kevin J

Disclosed activity across 2 companies

Tapewire entity
14502
SEC CIK
0001567046

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Bandwidth Inc.BAND · Entity 35010% ownerJanuary 02, 2019January 04, 2019
CORNING INC /NYGLW · Entity 2883DirectorSeptember 30, 2026October 02, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Restricted Stock UnitsSEC Table II · derivative / convertible securityIndirectSee footnote1,815 Reported balance After 2019-01-02 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2019-01-02 · Grant · Acquired 1,815 · Balance 1,815

F1: Each Restricted Stock Unit represents a contingent right to receive one share of the Company's Class A Common Stock.

F2: The Restricted Stock Units vest in four equal quarterly installments beginning on March 31, 2019.

F3: Represents Restricted Stock Units held directly by Brian D. Bailey. Pursuant to an agreement between Mr. Bailey and Carmichael Partners LLC, Carmichael Partners LLC is entitled to all economic benefits of such Restricted Stock Units.

Filing footnotes · ownership attribution and instrument terms

F1: Each Restricted Stock Unit represents a contingent right to receive one share of the Company's Class A Common Stock.

F2: The Restricted Stock Units vest in four equal quarterly installments beginning on March 31, 2019.

F3: Represents Restricted Stock Units held directly by Brian D. Bailey. Pursuant to an agreement between Mr. Bailey and Carmichael Partners LLC, Carmichael Partners LLC is entitled to all economic benefits of such Restricted Stock Units.

CORNING INC /NY

Report date September 30, 2026 · Filed October 02, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Restricted Stock UnitSEC Table II · derivative / convertible securityDirect20,462 Reported balance After 2026-09-30 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2026-09-30 · Grant · Acquired 228 · Balance 20,462

F4: 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.

F5: 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.

Restricted Stock UnitSEC Table II · derivative / convertible securityDirect888 Reported balance Holding disclosure · report date 2026-09-30 · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · Balance 888

F1: Each restricted stock unit represents a contingent right to receive one share of Corning Incorporated common stock.

F2: 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.

Restricted Stock UnitSEC Table II · derivative / convertible securityDirect1,544 Reported balance Holding disclosure · report date 2026-09-30 · row 3 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 3 · Balance 1,544

F1: Each restricted stock unit represents a contingent right to receive one share of Corning Incorporated common stock.

F2: 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.

Restricted Stock UnitSEC Table II · derivative / convertible securityDirect52,853 Reported balance Holding disclosure · report date 2026-09-30 · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · Balance 52,853

F3: 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.

F2: 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.

Common StockSEC Table I · non-derivativeDirect31,506 Reported balance Holding disclosure · report date 2026-09-30 · row 1 Holding and transaction disclosures are not merged.
1 source row

Row 1 · Balance 31,506

Filing footnotes · ownership attribution and instrument terms

F1: Each restricted stock unit represents a contingent right to receive one share of Corning Incorporated common stock.

F2: 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.

F3: 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.

F4: 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.

F5: 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.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
March 31, 2018 Filed May 9, 2018 16:30 UTC Bandwidth Inc. BAND · Entity 350 Exercise / conversionRestricted Stock Units · Derivative 822 $0.00 $0.00
Disclosure

SEC source: 0000899243-18-012084 · doc4.xml · derivative · entry 3

Carmichael Bandwidth LLC · CIK 0001721937 · 10% owner

Bailey Brian D. · CIK 0001575505 · Director · 10% owner

Martin Kevin J · CIK 0001567046 · 10% owner

Carmichael Partners LLC · CIK 0001722003 · 10% owner

Carmichael Investment Partners, LLC · CIK 0001513802 · 10% owner

Carmichael Investment Partners II, LLC · CIK 0001562063 · 10% owner

Carmichael Investment Partners III, LLC · CIK 0001592580 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,466

Underlying: Class A Common Stock · 822 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Company's Class A Common Stock.

F5 · derivative.exercise_date: On January 24, 2018, the Reporting Person was granted 3,288 Restricted Stock Units which vest in four equal quarterly installments beginning on March 31, 2018.

F5 · derivative.expiration_date: On January 24, 2018, the Reporting Person was granted 3,288 Restricted Stock Units which vest in four equal quarterly installments beginning on March 31, 2018.

F2 · ownership.nature: Pursuant to an agreement between Mr. Bailey and Carmichael Partners LLC, Carmichael Partners LLC is entitled to all economic benefits of such Restricted Stock Units.

F6 · ownership.nature: Represents Restricted Stock Units held directly by Brian D. Bailey.

Read SEC document
March 31, 2018 Filed May 9, 2018 16:30 UTC Bandwidth Inc. BAND · Entity 350 Exercise / conversionClass A Common Stock 822 $0.00 $0.00
Disclosure

SEC source: 0000899243-18-012084 · doc4.xml · nonDerivative · entry 2

Carmichael Bandwidth LLC · CIK 0001721937 · 10% owner

Bailey Brian D. · CIK 0001575505 · Director · 10% owner

Martin Kevin J · CIK 0001567046 · 10% owner

Carmichael Partners LLC · CIK 0001722003 · 10% owner

Carmichael Investment Partners, LLC · CIK 0001513802 · 10% owner

Carmichael Investment Partners II, LLC · CIK 0001562063 · 10% owner

Carmichael Investment Partners III, LLC · CIK 0001592580 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,776

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · ownership.nature: Pursuant to an agreement between Mr. Bailey and Carmichael Partners LLC, Carmichael Partners LLC is entitled to all economic benefits of such Restricted Stock Units.

F3 · ownership.nature: Represents 1,201 Restricted Stock Units held directly by Brian D. Bailey.

Read SEC document
February 07, 2018 Filed Feb 9, 2018 21:24 UTC CORNING INC /NY GLW · Entity 2883 GrantRestricted Stock Unit · Derivative 5,533 $0.00 $0.00
Disclosure

SEC source: 0001127602-18-004940 · form4.xml · derivative · entry 1

Martin Kevin J · CIK 0001567046 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,447

Underlying: Common Stock · 5,533 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents annual equity retainer in the form of restricted stock units granted under the 2010 Equity Plan For Non-Employee Directors. Each restricted stock unit represents a contingent right to receive one share of Corning Incorporated Common Stock.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

Read SEC document
January 24, 2018 Filed Jan 26, 2018 16:44 UTC Bandwidth Inc. BAND · Entity 350 GrantRestricted Stock Units · Derivative 3,288 $0.00 $0.00
Disclosure

SEC source: 0000899243-18-002104 · doc4.xml · derivative · entry 2

Carmichael Bandwidth LLC · CIK 0001721937 · 10% owner

Bailey Brian D. · CIK 0001575505 · Director · 10% owner

Martin Kevin J · CIK 0001567046 · 10% owner

Carmichael Partners LLC · CIK 0001722003 · 10% owner

Carmichael Investment Partners, LLC · CIK 0001513802 · 10% owner

Carmichael Investment Partners II, LLC · CIK 0001562063 · 10% owner

Carmichael Investment Partners III, LLC · CIK 0001592580 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 3,288

Underlying: Class A Common Stock · 3,288 shares

Expires not disclosed

F2 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of the Company's Class A Common Stock.

F3 · derivative.exercise_date: The Restricted Stock Units vest in four equal quarterly installments beginning on March 31, 2018.

F3 · derivative.expiration_date: The Restricted Stock Units vest in four equal quarterly installments beginning on March 31, 2018.

F1 · ownership.nature: Represents Restricted Stock Units held directly by Brian D. Bailey. Pursuant to an agreement between Mr. Bailey and Carmichael Partners LLC, Carmichael Partners LLC is entitled to all economic benefits of such Restricted Stock Units.

Read SEC document
January 24, 2018 Filed Jan 26, 2018 16:44 UTC Bandwidth Inc. BAND · Entity 350 GrantClass A Common Stock 379 $0.00 $0.00
Disclosure

SEC source: 0000899243-18-002104 · doc4.xml · nonDerivative · entry 1

Carmichael Bandwidth LLC · CIK 0001721937 · 10% owner

Bailey Brian D. · CIK 0001575505 · Director · 10% owner

Martin Kevin J · CIK 0001567046 · 10% owner

Carmichael Partners LLC · CIK 0001722003 · 10% owner

Carmichael Investment Partners, LLC · CIK 0001513802 · 10% owner

Carmichael Investment Partners II, LLC · CIK 0001562063 · 10% owner

Carmichael Investment Partners III, LLC · CIK 0001592580 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 379

F1 · ownership.nature: Represents Restricted Stock Units held directly by Brian D. Bailey. Pursuant to an agreement between Mr. Bailey and Carmichael Partners LLC, Carmichael Partners LLC is entitled to all economic benefits of such Restricted Stock Units.

Read SEC document
December 29, 2017 Filed Jan 3, 2018 08:01 UTC Bandwidth Inc. BAND · Entity 350 OtherClass B Common Stock · Derivative 2,027 $0.00 $0.00
Disclosure

SEC source: 0000899243-18-000171 · doc4.xml · derivative · entry 2

Carmichael Bandwidth LLC · CIK 0001721937 · 10% owner

Bailey Brian D. · CIK 0001575505 · Director · 10% owner

Martin Kevin J · CIK 0001567046 · 10% owner

Carmichael Partners LLC · CIK 0001722003 · 10% owner

Carmichael Investment Partners, LLC · CIK 0001513802 · 10% owner

Carmichael Investment Partners II, LLC · CIK 0001562063 · 10% owner

Carmichael Investment Partners III, LLC · CIK 0001592580 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 2,092,338

Underlying: Class A Common Stock · 2,027 shares

Expires not disclosed

F3 · derivative.exercise_price: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

F3 · derivative.exercise_date: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

F3 · derivative.expiration_date: The shares of Class B common stock are convertible in to Class A common stock on a 1-to-1 basis at the option of the holder and have no expiration date.

F4 · ownership.nature: Consists of (i) 1,781,874 shares of Class B common stock held by CIP, (ii) 178,572 shares of Class B common stock held by Carmichael Investment Partners II, LLC ("CIP II"), (iii) 123,142 shares of Class B common stock held by Carmichael Investment Partners III, LLC ("CIP III" and, together with CIP and CIP II, the "Carmichael Entities") and (iv) 8,750 shares of Class B common stock held by Carmichael Partners LLC.

F5 · ownership.nature: Carmichael Bandwidth LLC is the managing member of each of the Carmichael Entities. Brian D. Bailey and Kevin J. Martin are the managing partners of Carmichael Bandwidth LLC and Carmichael Partners LLC and share voting and dispositive power with respect to the shares held by the Carmichael Entities and Carmichael Partners LLC. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of its or their pecuniary interest therein.

Read SEC document
December 29, 2017 Filed Jan 3, 2018 08:01 UTC Bandwidth Inc. BAND · Entity 350 OtherWarrants · Derivative 2,027 $0.00 Strike: $6.57 $0.00
Disclosure

SEC source: 0000899243-18-000171 · doc4.xml · derivative · entry 1

Carmichael Bandwidth LLC · CIK 0001721937 · 10% owner

Bailey Brian D. · CIK 0001575505 · Director · 10% owner

Martin Kevin J · CIK 0001567046 · 10% owner

Carmichael Partners LLC · CIK 0001722003 · 10% owner

Carmichael Investment Partners, LLC · CIK 0001513802 · 10% owner

Carmichael Investment Partners II, LLC · CIK 0001562063 · 10% owner

Carmichael Investment Partners III, LLC · CIK 0001592580 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Class B Common Stock · 2,027 shares

Expires 2018-01-19

F1 · derivative.exercise_date: The warrants are currently exercisable.

F2 · ownership.nature: Consists of 2,027 warrants held by Carmichael Investment Partners LLC ("CIP").

F5 · ownership.nature: Carmichael Bandwidth LLC is the managing member of each of the Carmichael Entities. Brian D. Bailey and Kevin J. Martin are the managing partners of Carmichael Bandwidth LLC and Carmichael Partners LLC and share voting and dispositive power with respect to the shares held by the Carmichael Entities and Carmichael Partners LLC. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of its or their pecuniary interest therein.

Read SEC document
November 14, 2017 Filed May 9, 2018 16:30 UTC Bandwidth Inc. BAND · Entity 350 PurchaseClass A Common Stock 1,575 $20.00 $31,500.00
Disclosure

SEC source: 0000899243-18-012084 · doc4.xml · nonDerivative · entry 1

Carmichael Bandwidth LLC · CIK 0001721937 · 10% owner

Bailey Brian D. · CIK 0001575505 · Director · 10% owner

Martin Kevin J · CIK 0001567046 · 10% owner

Carmichael Partners LLC · CIK 0001722003 · 10% owner

Carmichael Investment Partners, LLC · CIK 0001513802 · 10% owner

Carmichael Investment Partners II, LLC · CIK 0001562063 · 10% owner

Carmichael Investment Partners III, LLC · CIK 0001592580 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 1,954

F1 · ownership.nature: Represents 1,575 shares of Class A Common Stock held directly by Brian D. Bailey and 379 Restricted Stock Units held directly by Brian D. Bailey.

F2 · ownership.nature: Pursuant to an agreement between Mr. Bailey and Carmichael Partners LLC, Carmichael Partners LLC is entitled to all economic benefits of such Restricted Stock Units.

Read SEC document
November 14, 2017 Filed Nov 1, 2018 18:17 UTC Bandwidth Inc. BAND · Entity 350 PurchaseClass A Common Stock 1,575 $20.00 $31,500.00
Disclosure

SEC source: 0000899243-18-027915 · doc4.xml · nonDerivative · entry 1

Carmichael Bandwidth LLC · CIK 0001721937 · 10% owner

Bailey Brian D. · CIK 0001575505 · Director · 10% owner

Martin Kevin J · CIK 0001567046 · 10% owner

Carmichael Partners LLC · CIK 0001722003 · 10% owner

Carmichael Investment Partners, LLC · CIK 0001513802 · 10% owner

Carmichael Investment Partners II, LLC · CIK 0001562063 · 10% owner

Carmichael Investment Partners III, LLC · CIK 0001592580 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 3,529

F1 · ownership.nature: Represents 1,575 shares of Class A Common Stock held directly by Kevin J. Martin and 1,954 shares of Class A Common Stock held directly by Brian D. Bailey. Pursuant to an agreement between Mr. Bailey and Carmichael Partners LLC, Carmichael Partners LLC is entitled to all economic benefit withrespect to 379 shares held directly by Mr. Bailey.

Read SEC document
February 01, 2017 Filed Feb 3, 2017 21:12 UTC CORNING INC /NY GLW · Entity 2883 GrantRestricted Stock Unit · Derivative 5,914 $0.00 $0.00
Disclosure

SEC source: 0001127602-17-003872 · form4.xml · derivative · entry 1

Martin Kevin J · CIK 0001567046 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,914

Underlying: Common Stock · 5,914 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents annual equity retainer in the form of restricted stock units granted under the 2010 Equity Plan For Non-Employee Directors. Each restricted stock unit represents a contingent right to receive one share of Corning Incorporated Common Stock.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

Read SEC document
February 03, 2016 Filed Feb 5, 2016 21:18 UTC CORNING INC /NY GLW · Entity 2883 GrantCommon Stock 8,433 $0.00 $0.00
Disclosure

SEC source: 0001127602-16-039758 · form4.xml · nonDerivative · entry 1

Martin Kevin J · CIK 0001567046 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,506

F1 · shares: Restricted shares are subject to the possibility of forfeiture and/or restrictions on transfer until six months after termination of services as a director.

Read SEC document
February 04, 2015 Filed Feb 6, 2015 21:19 UTC CORNING INC /NY GLW · Entity 2883 GrantCommon Stock 5,974 $0.00 $0.00
Disclosure

SEC source: 0001127602-15-004847 · form4.xml · nonDerivative · entry 1

Martin Kevin J · CIK 0001567046 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,073

F1 · shares: Restricted shares are subject to the possibility of forfeiture and/or restrictions on transfer until six months after termination of services as a director.

Read SEC document
February 05, 2014 Filed Feb 7, 2014 21:10 UTC CORNING INC /NY GLW · Entity 2883 GrantCommon Stock 7,692 $0.00 $0.00
Disclosure

SEC source: 0001127602-14-005127 · form4.xml · nonDerivative · entry 1

Martin Kevin J · CIK 0001567046 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,099

F1 · shares: Restricted shares are subject to the possibility of forfeiture and/or restrictions on transfer until six months after termination of services as a director.

Read SEC document
February 06, 2013 Filed Feb 8, 2013 21:12 UTC CORNING INC /NY GLW · Entity 2883 GrantCommon Stock 9,407 $0.00 $0.00
Disclosure

SEC source: 0001127602-13-005073 · form4.xml · nonDerivative · entry 1

Martin Kevin J · CIK 0001567046 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,407

F1 · shares: Restricted shares are subject to the possibility of forfeiture and/or restrictions on transfer until six months after termination of services as a director.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.