QMCO

QUANTUM CORP /DE/

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Tapewire entity: 4987
SEC CIK: 0000709283
Parsed reports: 354

Last 12 months

Inside the activity.

0 purchase rows · 4 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.

Nov

Dec

Jan

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Monthly counts

Month	Purchases	Sales
Nov 2025	0	0
Dec 2025	0	0
Jan 2026	0	0
Feb 2026	0	0
Mar 2026	0	0
Apr 2026	0	1
May 2026	0	0
Jun 2026	0	0
Jul 2026	0	2
Aug 2026	0	1
Sep 2026	0	0
Oct 2026	0	0

Latest available

Insider transactions

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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 date	Owner / reported role	Activity / security	Shares / units	Reported price	Reported value	Details
December 05, 2016 Filed Dec 6, 2016 00:00 UTC	Starboard Value LP10% owner Starboard Value GP LLC10% owner STARBOARD VALUE & OPPORTUNITY S LLC10% owner Starboard Principal Co LP10% owner Starboard Principal Co GP LLC10% owner STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD10% owner Starboard Value & Opportunity C LP10% owner Starboard Value R LP10% owner Starboard Value R GP LLC10% owner	SaleCommon Stock, $0.01 Par Value	270,675	$0.92	$249,048.07	Disclosure SEC source: 0000921895-16-006278 · form406297109a_12052016.xml · nonDerivative · entry 7 Starboard Value LP · CIK 0001517137 · 10% owner Starboard Value GP LLC · CIK 0001517138 · 10% owner STARBOARD VALUE & OPPORTUNITY S LLC · CIK 0001519812 · 10% owner Starboard Principal Co LP · CIK 0001517139 · 10% owner Starboard Principal Co GP LLC · CIK 0001517140 · 10% owner STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD · CIK 0001373638 · 10% owner Starboard Value & Opportunity C LP · CIK 0001571704 · 10% owner Starboard Value R LP · CIK 0001575972 · 10% owner Starboard Value R GP LLC · CIK 0001575979 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · By Starboard Value and Opportunity C LP Disclosed balance after: 1,600,002 F1 · security: This Form 4 is filed jointly by Starboard Value and Opportunity Master Fund Ltd ("Starboard V&O Fund"), Starboard Value and Opportunity S LLC ("Starboard S LLC"), Starboard Value and Opportunity C LP ("Starboard C LP"), Starboard Value LP ("Starboard Value LP"), Starboard Value GP LLC ("Starboard Value GP"), Starboard Principal Co LP ("Principal Co"), Starboard Principal Co GP LLC ("Principal GP"), Starboard Value R LP ("Starboard R LP"), Starboard Value R GP LLC ("Starboard R GP"), Jeffrey C. Smith, Mark R. Mitchell and Peter A. Feld (collectively, the "Reporting Persons"). To enable all of the Reporting Persons to gain access to the Securities and Exchange Commission's electronic filing system (which only accepts a maximum of 10 joint filers per report), this report is the first of two identical reports relating to the same transactions being filed with the Securities and Exchange Commission. F2 · security: Each Reporting Person may be deemed to be a member of a Section 13(d) group that owns more than 10% of the Issuer's outstanding shares of Common Stock. Each Reporting Person disclaims beneficial ownership of the shares of Common Stock reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such shares of Common Stock for purposes of Section 16 or for any other purpose. F5 · ownership.nature: Shares of Common Stock beneficially owned by Starboard C LP. Each of Starboard R LP, as the general partner of Starboard C LP, and Starboard R GP, as the general partner of Starboard R LP, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard C LP. Starboard Value LP, as the investment manager of Starboard C LP, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard C LP. Each of Starboard Value GP, as the general partner of Starboard Value LP, Principal Co, as a member of Starboard Value GP, Principal GP, as the general partner of Principal Co, and Messrs. Smith, Mitchell and Feld, as members of Principal GP and as members of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard C LP. Read SEC document
December 05, 2016 Filed Dec 6, 2016 00:00 UTC	Starboard Value LP10% owner Starboard Value GP LLC10% owner STARBOARD VALUE & OPPORTUNITY S LLC10% owner Starboard Principal Co LP10% owner Starboard Principal Co GP LLC10% owner STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD10% owner Starboard Value & Opportunity C LP10% owner Starboard Value R LP10% owner Starboard Value R GP LLC10% owner	SaleCommon Stock, $0.01 Par Value	331,530	$0.92	$305,040.75	Disclosure SEC source: 0000921895-16-006278 · form406297109a_12052016.xml · nonDerivative · entry 6 Starboard Value LP · CIK 0001517137 · 10% owner Starboard Value GP LLC · CIK 0001517138 · 10% owner STARBOARD VALUE & OPPORTUNITY S LLC · CIK 0001519812 · 10% owner Starboard Principal Co LP · CIK 0001517139 · 10% owner Starboard Principal Co GP LLC · CIK 0001517140 · 10% owner STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD · CIK 0001373638 · 10% owner Starboard Value & Opportunity C LP · CIK 0001571704 · 10% owner Starboard Value R LP · CIK 0001575972 · 10% owner Starboard Value R GP LLC · CIK 0001575979 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · By Starboard Value and Opportunity S LLC Disclosed balance after: 1,959,720 F1 · security: This Form 4 is filed jointly by Starboard Value and Opportunity Master Fund Ltd ("Starboard V&O Fund"), Starboard Value and Opportunity S LLC ("Starboard S LLC"), Starboard Value and Opportunity C LP ("Starboard C LP"), Starboard Value LP ("Starboard Value LP"), Starboard Value GP LLC ("Starboard Value GP"), Starboard Principal Co LP ("Principal Co"), Starboard Principal Co GP LLC ("Principal GP"), Starboard Value R LP ("Starboard R LP"), Starboard Value R GP LLC ("Starboard R GP"), Jeffrey C. Smith, Mark R. Mitchell and Peter A. Feld (collectively, the "Reporting Persons"). To enable all of the Reporting Persons to gain access to the Securities and Exchange Commission's electronic filing system (which only accepts a maximum of 10 joint filers per report), this report is the first of two identical reports relating to the same transactions being filed with the Securities and Exchange Commission. F2 · security: Each Reporting Person may be deemed to be a member of a Section 13(d) group that owns more than 10% of the Issuer's outstanding shares of Common Stock. Each Reporting Person disclaims beneficial ownership of the shares of Common Stock reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such shares of Common Stock for purposes of Section 16 or for any other purpose. F4 · ownership.nature: Shares of Common Stock beneficially owned by Starboard S LLC. Starboard Value LP, as the manager of Starboard S LLC, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard S LLC. Each of Starboard Value GP, as the general partner of Starboard Value LP, Principal Co, as a member of Starboard Value GP, Principal GP, as the general partner of Principal Co, and Messrs. Smith, Mitchell and Feld, as members of Principal GP and as members of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard S LLC. Read SEC document
December 05, 2016 Filed Dec 6, 2016 00:00 UTC	Starboard Value LP10% owner Starboard Value GP LLC10% owner STARBOARD VALUE & OPPORTUNITY S LLC10% owner Starboard Principal Co LP10% owner Starboard Principal Co GP LLC10% owner STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD10% owner Starboard Value & Opportunity C LP10% owner Starboard Value R LP10% owner Starboard Value R GP LLC10% owner	SaleCommon Stock, $0.01 Par Value	1,479,049	$0.92	$1,360,872.98	Disclosure SEC source: 0000921895-16-006278 · form406297109a_12052016.xml · nonDerivative · entry 5 Starboard Value LP · CIK 0001517137 · 10% owner Starboard Value GP LLC · CIK 0001517138 · 10% owner STARBOARD VALUE & OPPORTUNITY S LLC · CIK 0001519812 · 10% owner Starboard Principal Co LP · CIK 0001517139 · 10% owner Starboard Principal Co GP LLC · CIK 0001517140 · 10% owner STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD · CIK 0001373638 · 10% owner Starboard Value & Opportunity C LP · CIK 0001571704 · 10% owner Starboard Value R LP · CIK 0001575972 · 10% owner Starboard Value R GP LLC · CIK 0001575979 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · By Starboard Value and Opportunity Master Fund Ltd Disclosed balance after: 8,742,884 F1 · security: This Form 4 is filed jointly by Starboard Value and Opportunity Master Fund Ltd ("Starboard V&O Fund"), Starboard Value and Opportunity S LLC ("Starboard S LLC"), Starboard Value and Opportunity C LP ("Starboard C LP"), Starboard Value LP ("Starboard Value LP"), Starboard Value GP LLC ("Starboard Value GP"), Starboard Principal Co LP ("Principal Co"), Starboard Principal Co GP LLC ("Principal GP"), Starboard Value R LP ("Starboard R LP"), Starboard Value R GP LLC ("Starboard R GP"), Jeffrey C. Smith, Mark R. Mitchell and Peter A. Feld (collectively, the "Reporting Persons"). To enable all of the Reporting Persons to gain access to the Securities and Exchange Commission's electronic filing system (which only accepts a maximum of 10 joint filers per report), this report is the first of two identical reports relating to the same transactions being filed with the Securities and Exchange Commission. F2 · security: Each Reporting Person may be deemed to be a member of a Section 13(d) group that owns more than 10% of the Issuer's outstanding shares of Common Stock. Each Reporting Person disclaims beneficial ownership of the shares of Common Stock reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such shares of Common Stock for purposes of Section 16 or for any other purpose. F3 · ownership.nature: Shares of Common Stock beneficially owned by Starboard V&O Fund. Starboard Value LP, as the investment manager of Starboard V&O Fund, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard V&O Fund. Each of Starboard Value GP, as the general partner of Starboard Value LP, Principal Co, as a member of Starboard Value GP, Principal GP, as the general partner of Principal Co, and Messrs. Smith, Mitchell and Feld, as members of Principal GP and as members of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard V&O Fund. Read SEC document
December 01, 2016 Filed Dec 6, 2016 00:04 UTC	Smith Jeffrey C10% owner MITCHELL MARK R10% owner Feld Peter A10% owner	SaleCommon Stock, $0.01 Par Value	199,518	$0.92	$183,556.56	Disclosure SEC source: 0000921895-16-006279 · form406297109b_12052016.xml · nonDerivative · entry 4 Smith Jeffrey C · CIK 0001362697 · 10% owner MITCHELL MARK R · CIK 0001285596 · 10% owner Feld Peter A · CIK 0001410600 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · By Managed Account of Starboard Value LP Disclosed balance after: 3,585,136 F1 · security: This Form 4 is filed jointly by Starboard Value and Opportunity Master Fund Ltd ("Starboard V&O Fund"), Starboard Value and Opportunity S LLC ("Starboard S LLC"), Starboard Value and Opportunity C LP ("Starboard C LP"), Starboard Value LP ("Starboard Value LP"), Starboard Value GP LLC ("Starboard Value GP"), Starboard Principal Co LP ("Principal Co"), Starboard Principal Co GP LLC ("Principal GP"), Starboard Value R LP ("Starboard R LP"), Starboard Value R GP LLC ("Starboard R GP"), Jeffrey C. Smith, Mark R. Mitchell and Peter A. Feld (collectively, the "Reporting Persons"). To enable all of the Reporting Persons to gain access to the Securities and Exchange Commission's electronic filing system (which only accepts a maximum of 10 joint filers per report), this report is the second of two identical reports relating to the same transactions being filed with the Securities and Exchange Commission. F2 · security: Each Reporting Person may be deemed to be a member of a Section 13(d) group that owns more than 10% of the Issuer's outstanding shares of Common Stock. Each Reporting Person disclaims beneficial ownership of the shares of Common Stock reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such shares of Common Stock for purposes of Section 16 or for any other purpose. F6 · ownership.nature: Shares held in an account managed by Starboard Value LP. Starboard Value GP, as the general partner of Starboard Value LP, Principal Co, as a member of Starboard Value GP, Principal GP, as the general partner of Principal Co, and Messrs. Smith, Mitchell and Feld as members of Principal GP and as members of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard Value LP. Read SEC document
December 01, 2016 Filed Dec 6, 2016 00:04 UTC	Smith Jeffrey C10% owner MITCHELL MARK R10% owner Feld Peter A10% owner	SaleCommon Stock, $0.01 Par Value	104,106	$0.92	$95,777.52	Disclosure SEC source: 0000921895-16-006279 · form406297109b_12052016.xml · nonDerivative · entry 3 Smith Jeffrey C · CIK 0001362697 · 10% owner MITCHELL MARK R · CIK 0001285596 · 10% owner Feld Peter A · CIK 0001410600 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · By Starboard Value and Opportunity C LP Disclosed balance after: 1,870,677 F1 · security: This Form 4 is filed jointly by Starboard Value and Opportunity Master Fund Ltd ("Starboard V&O Fund"), Starboard Value and Opportunity S LLC ("Starboard S LLC"), Starboard Value and Opportunity C LP ("Starboard C LP"), Starboard Value LP ("Starboard Value LP"), Starboard Value GP LLC ("Starboard Value GP"), Starboard Principal Co LP ("Principal Co"), Starboard Principal Co GP LLC ("Principal GP"), Starboard Value R LP ("Starboard R LP"), Starboard Value R GP LLC ("Starboard R GP"), Jeffrey C. Smith, Mark R. Mitchell and Peter A. Feld (collectively, the "Reporting Persons"). To enable all of the Reporting Persons to gain access to the Securities and Exchange Commission's electronic filing system (which only accepts a maximum of 10 joint filers per report), this report is the second of two identical reports relating to the same transactions being filed with the Securities and Exchange Commission. F2 · security: Each Reporting Person may be deemed to be a member of a Section 13(d) group that owns more than 10% of the Issuer's outstanding shares of Common Stock. Each Reporting Person disclaims beneficial ownership of the shares of Common Stock reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such shares of Common Stock for purposes of Section 16 or for any other purpose. F5 · ownership.nature: Shares of Common Stock beneficially owned by Starboard C LP. Each of Starboard R LP, as the general partner of Starboard C LP, and Starboard R GP, as the general partner of Starboard R LP, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard C LP. Starboard Value LP, as the investment manager of Starboard C LP, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard C LP. Each of Starboard Value GP, as the general partner of Starboard Value LP, Principal Co, as a member of Starboard Value GP, Principal GP, as the general partner of Principal Co, and Messrs. Smith, Mitchell and Feld, as members of Principal GP and as members of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard C LP. Read SEC document
December 01, 2016 Filed Dec 6, 2016 00:04 UTC	Smith Jeffrey C10% owner MITCHELL MARK R10% owner Feld Peter A10% owner	SaleCommon Stock, $0.01 Par Value	127,512	$0.92	$117,311.04	Disclosure SEC source: 0000921895-16-006279 · form406297109b_12052016.xml · nonDerivative · entry 2 Smith Jeffrey C · CIK 0001362697 · 10% owner MITCHELL MARK R · CIK 0001285596 · 10% owner Feld Peter A · CIK 0001410600 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · By Starboard Value and Opportunity S LLC Disclosed balance after: 2,291,250 F1 · security: This Form 4 is filed jointly by Starboard Value and Opportunity Master Fund Ltd ("Starboard V&O Fund"), Starboard Value and Opportunity S LLC ("Starboard S LLC"), Starboard Value and Opportunity C LP ("Starboard C LP"), Starboard Value LP ("Starboard Value LP"), Starboard Value GP LLC ("Starboard Value GP"), Starboard Principal Co LP ("Principal Co"), Starboard Principal Co GP LLC ("Principal GP"), Starboard Value R LP ("Starboard R LP"), Starboard Value R GP LLC ("Starboard R GP"), Jeffrey C. Smith, Mark R. Mitchell and Peter A. Feld (collectively, the "Reporting Persons"). To enable all of the Reporting Persons to gain access to the Securities and Exchange Commission's electronic filing system (which only accepts a maximum of 10 joint filers per report), this report is the second of two identical reports relating to the same transactions being filed with the Securities and Exchange Commission. F2 · security: Each Reporting Person may be deemed to be a member of a Section 13(d) group that owns more than 10% of the Issuer's outstanding shares of Common Stock. Each Reporting Person disclaims beneficial ownership of the shares of Common Stock reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such shares of Common Stock for purposes of Section 16 or for any other purpose. F4 · ownership.nature: Shares of Common Stock beneficially owned by Starboard S LLC. Starboard Value LP, as the manager of Starboard S LLC, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard S LLC. Each of Starboard Value GP, as the general partner of Starboard Value LP, Principal Co, as a member of Starboard Value GP, Principal GP, as the general partner of Principal Co, and Messrs. Smith, Mitchell and Feld, as members of Principal GP and as members of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard S LLC. Read SEC document
December 01, 2016 Filed Dec 6, 2016 00:04 UTC	Smith Jeffrey C10% owner MITCHELL MARK R10% owner Feld Peter A10% owner	SaleCommon Stock, $0.01 Par Value	568,864	$0.92	$523,354.88	Disclosure SEC source: 0000921895-16-006279 · form406297109b_12052016.xml · nonDerivative · entry 1 Smith Jeffrey C · CIK 0001362697 · 10% owner MITCHELL MARK R · CIK 0001285596 · 10% owner Feld Peter A · CIK 0001410600 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · By Starboard Value and Opportunity Master Fund Ltd Disclosed balance after: 10,221,933 F1 · security: This Form 4 is filed jointly by Starboard Value and Opportunity Master Fund Ltd ("Starboard V&O Fund"), Starboard Value and Opportunity S LLC ("Starboard S LLC"), Starboard Value and Opportunity C LP ("Starboard C LP"), Starboard Value LP ("Starboard Value LP"), Starboard Value GP LLC ("Starboard Value GP"), Starboard Principal Co LP ("Principal Co"), Starboard Principal Co GP LLC ("Principal GP"), Starboard Value R LP ("Starboard R LP"), Starboard Value R GP LLC ("Starboard R GP"), Jeffrey C. Smith, Mark R. Mitchell and Peter A. Feld (collectively, the "Reporting Persons"). To enable all of the Reporting Persons to gain access to the Securities and Exchange Commission's electronic filing system (which only accepts a maximum of 10 joint filers per report), this report is the second of two identical reports relating to the same transactions being filed with the Securities and Exchange Commission. F2 · security: Each Reporting Person may be deemed to be a member of a Section 13(d) group that owns more than 10% of the Issuer's outstanding shares of Common Stock. Each Reporting Person disclaims beneficial ownership of the shares of Common Stock reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such shares of Common Stock for purposes of Section 16 or for any other purpose. F3 · ownership.nature: Shares of Common Stock beneficially owned by Starboard V&O Fund. Starboard Value LP, as the investment manager of Starboard V&O Fund, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard V&O Fund. Each of Starboard Value GP, as the general partner of Starboard Value LP, Principal Co, as a member of Starboard Value GP, Principal GP, as the general partner of Principal Co, and Messrs. Smith, Mitchell and Feld, as members of Principal GP and as members of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard V&O Fund. Read SEC document
December 01, 2016 Filed Dec 6, 2016 00:00 UTC	Starboard Value LP10% owner Starboard Value GP LLC10% owner STARBOARD VALUE & OPPORTUNITY S LLC10% owner Starboard Principal Co LP10% owner Starboard Principal Co GP LLC10% owner STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD10% owner Starboard Value & Opportunity C LP10% owner Starboard Value R LP10% owner Starboard Value R GP LLC10% owner	SaleCommon Stock, $0.01 Par Value	199,518	$0.92	$183,556.56	Disclosure SEC source: 0000921895-16-006278 · form406297109a_12052016.xml · nonDerivative · entry 4 Starboard Value LP · CIK 0001517137 · 10% owner Starboard Value GP LLC · CIK 0001517138 · 10% owner STARBOARD VALUE & OPPORTUNITY S LLC · CIK 0001519812 · 10% owner Starboard Principal Co LP · CIK 0001517139 · 10% owner Starboard Principal Co GP LLC · CIK 0001517140 · 10% owner STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD · CIK 0001373638 · 10% owner Starboard Value & Opportunity C LP · CIK 0001571704 · 10% owner Starboard Value R LP · CIK 0001575972 · 10% owner Starboard Value R GP LLC · CIK 0001575979 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · By Managed Account of Starboard Value LP Disclosed balance after: 3,585,136 F1 · security: This Form 4 is filed jointly by Starboard Value and Opportunity Master Fund Ltd ("Starboard V&O Fund"), Starboard Value and Opportunity S LLC ("Starboard S LLC"), Starboard Value and Opportunity C LP ("Starboard C LP"), Starboard Value LP ("Starboard Value LP"), Starboard Value GP LLC ("Starboard Value GP"), Starboard Principal Co LP ("Principal Co"), Starboard Principal Co GP LLC ("Principal GP"), Starboard Value R LP ("Starboard R LP"), Starboard Value R GP LLC ("Starboard R GP"), Jeffrey C. Smith, Mark R. Mitchell and Peter A. Feld (collectively, the "Reporting Persons"). To enable all of the Reporting Persons to gain access to the Securities and Exchange Commission's electronic filing system (which only accepts a maximum of 10 joint filers per report), this report is the first of two identical reports relating to the same transactions being filed with the Securities and Exchange Commission. F2 · security: Each Reporting Person may be deemed to be a member of a Section 13(d) group that owns more than 10% of the Issuer's outstanding shares of Common Stock. Each Reporting Person disclaims beneficial ownership of the shares of Common Stock reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such shares of Common Stock for purposes of Section 16 or for any other purpose. F6 · ownership.nature: Shares held in an account managed by Starboard Value LP. Starboard Value GP, as the general partner of Starboard Value LP, Principal Co, as a member of Starboard Value GP, Principal GP, as the general partner of Principal Co, and Messrs. Smith, Mitchell and Feld as members of Principal GP and as members of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard Value LP. Read SEC document
December 01, 2016 Filed Dec 6, 2016 00:00 UTC	Starboard Value LP10% owner Starboard Value GP LLC10% owner STARBOARD VALUE & OPPORTUNITY S LLC10% owner Starboard Principal Co LP10% owner Starboard Principal Co GP LLC10% owner STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD10% owner Starboard Value & Opportunity C LP10% owner Starboard Value R LP10% owner Starboard Value R GP LLC10% owner	SaleCommon Stock, $0.01 Par Value	104,106	$0.92	$95,777.52	Disclosure SEC source: 0000921895-16-006278 · form406297109a_12052016.xml · nonDerivative · entry 3 Starboard Value LP · CIK 0001517137 · 10% owner Starboard Value GP LLC · CIK 0001517138 · 10% owner STARBOARD VALUE & OPPORTUNITY S LLC · CIK 0001519812 · 10% owner Starboard Principal Co LP · CIK 0001517139 · 10% owner Starboard Principal Co GP LLC · CIK 0001517140 · 10% owner STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD · CIK 0001373638 · 10% owner Starboard Value & Opportunity C LP · CIK 0001571704 · 10% owner Starboard Value R LP · CIK 0001575972 · 10% owner Starboard Value R GP LLC · CIK 0001575979 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · By Starboard Value and Opportunity C LP Disclosed balance after: 1,870,677 F1 · security: This Form 4 is filed jointly by Starboard Value and Opportunity Master Fund Ltd ("Starboard V&O Fund"), Starboard Value and Opportunity S LLC ("Starboard S LLC"), Starboard Value and Opportunity C LP ("Starboard C LP"), Starboard Value LP ("Starboard Value LP"), Starboard Value GP LLC ("Starboard Value GP"), Starboard Principal Co LP ("Principal Co"), Starboard Principal Co GP LLC ("Principal GP"), Starboard Value R LP ("Starboard R LP"), Starboard Value R GP LLC ("Starboard R GP"), Jeffrey C. Smith, Mark R. Mitchell and Peter A. Feld (collectively, the "Reporting Persons"). To enable all of the Reporting Persons to gain access to the Securities and Exchange Commission's electronic filing system (which only accepts a maximum of 10 joint filers per report), this report is the first of two identical reports relating to the same transactions being filed with the Securities and Exchange Commission. F2 · security: Each Reporting Person may be deemed to be a member of a Section 13(d) group that owns more than 10% of the Issuer's outstanding shares of Common Stock. Each Reporting Person disclaims beneficial ownership of the shares of Common Stock reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such shares of Common Stock for purposes of Section 16 or for any other purpose. F5 · ownership.nature: Shares of Common Stock beneficially owned by Starboard C LP. Each of Starboard R LP, as the general partner of Starboard C LP, and Starboard R GP, as the general partner of Starboard R LP, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard C LP. Starboard Value LP, as the investment manager of Starboard C LP, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard C LP. Each of Starboard Value GP, as the general partner of Starboard Value LP, Principal Co, as a member of Starboard Value GP, Principal GP, as the general partner of Principal Co, and Messrs. Smith, Mitchell and Feld, as members of Principal GP and as members of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard C LP. Read SEC document
December 01, 2016 Filed Dec 6, 2016 00:00 UTC	Starboard Value LP10% owner Starboard Value GP LLC10% owner STARBOARD VALUE & OPPORTUNITY S LLC10% owner Starboard Principal Co LP10% owner Starboard Principal Co GP LLC10% owner STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD10% owner Starboard Value & Opportunity C LP10% owner Starboard Value R LP10% owner Starboard Value R GP LLC10% owner	SaleCommon Stock, $0.01 Par Value	127,512	$0.92	$117,311.04	Disclosure SEC source: 0000921895-16-006278 · form406297109a_12052016.xml · nonDerivative · entry 2 Starboard Value LP · CIK 0001517137 · 10% owner Starboard Value GP LLC · CIK 0001517138 · 10% owner STARBOARD VALUE & OPPORTUNITY S LLC · CIK 0001519812 · 10% owner Starboard Principal Co LP · CIK 0001517139 · 10% owner Starboard Principal Co GP LLC · CIK 0001517140 · 10% owner STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD · CIK 0001373638 · 10% owner Starboard Value & Opportunity C LP · CIK 0001571704 · 10% owner Starboard Value R LP · CIK 0001575972 · 10% owner Starboard Value R GP LLC · CIK 0001575979 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · By Starboard Value and Opportunity S LLC Disclosed balance after: 2,291,250 F1 · security: This Form 4 is filed jointly by Starboard Value and Opportunity Master Fund Ltd ("Starboard V&O Fund"), Starboard Value and Opportunity S LLC ("Starboard S LLC"), Starboard Value and Opportunity C LP ("Starboard C LP"), Starboard Value LP ("Starboard Value LP"), Starboard Value GP LLC ("Starboard Value GP"), Starboard Principal Co LP ("Principal Co"), Starboard Principal Co GP LLC ("Principal GP"), Starboard Value R LP ("Starboard R LP"), Starboard Value R GP LLC ("Starboard R GP"), Jeffrey C. Smith, Mark R. Mitchell and Peter A. Feld (collectively, the "Reporting Persons"). To enable all of the Reporting Persons to gain access to the Securities and Exchange Commission's electronic filing system (which only accepts a maximum of 10 joint filers per report), this report is the first of two identical reports relating to the same transactions being filed with the Securities and Exchange Commission. F2 · security: Each Reporting Person may be deemed to be a member of a Section 13(d) group that owns more than 10% of the Issuer's outstanding shares of Common Stock. Each Reporting Person disclaims beneficial ownership of the shares of Common Stock reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such shares of Common Stock for purposes of Section 16 or for any other purpose. F4 · ownership.nature: Shares of Common Stock beneficially owned by Starboard S LLC. Starboard Value LP, as the manager of Starboard S LLC, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard S LLC. Each of Starboard Value GP, as the general partner of Starboard Value LP, Principal Co, as a member of Starboard Value GP, Principal GP, as the general partner of Principal Co, and Messrs. Smith, Mitchell and Feld, as members of Principal GP and as members of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard S LLC. Read SEC document
December 01, 2016 Filed Dec 6, 2016 00:00 UTC	Starboard Value LP10% owner Starboard Value GP LLC10% owner STARBOARD VALUE & OPPORTUNITY S LLC10% owner Starboard Principal Co LP10% owner Starboard Principal Co GP LLC10% owner STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD10% owner Starboard Value & Opportunity C LP10% owner Starboard Value R LP10% owner Starboard Value R GP LLC10% owner	SaleCommon Stock, $0.01 Par Value	568,864	$0.92	$523,354.88	Disclosure SEC source: 0000921895-16-006278 · form406297109a_12052016.xml · nonDerivative · entry 1 Starboard Value LP · CIK 0001517137 · 10% owner Starboard Value GP LLC · CIK 0001517138 · 10% owner STARBOARD VALUE & OPPORTUNITY S LLC · CIK 0001519812 · 10% owner Starboard Principal Co LP · CIK 0001517139 · 10% owner Starboard Principal Co GP LLC · CIK 0001517140 · 10% owner STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD · CIK 0001373638 · 10% owner Starboard Value & Opportunity C LP · CIK 0001571704 · 10% owner Starboard Value R LP · CIK 0001575972 · 10% owner Starboard Value R GP LLC · CIK 0001575979 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · By Starboard Value and Opportunity Master Fund Ltd Disclosed balance after: 10,221,933 F1 · security: This Form 4 is filed jointly by Starboard Value and Opportunity Master Fund Ltd ("Starboard V&O Fund"), Starboard Value and Opportunity S LLC ("Starboard S LLC"), Starboard Value and Opportunity C LP ("Starboard C LP"), Starboard Value LP ("Starboard Value LP"), Starboard Value GP LLC ("Starboard Value GP"), Starboard Principal Co LP ("Principal Co"), Starboard Principal Co GP LLC ("Principal GP"), Starboard Value R LP ("Starboard R LP"), Starboard Value R GP LLC ("Starboard R GP"), Jeffrey C. Smith, Mark R. Mitchell and Peter A. Feld (collectively, the "Reporting Persons"). To enable all of the Reporting Persons to gain access to the Securities and Exchange Commission's electronic filing system (which only accepts a maximum of 10 joint filers per report), this report is the first of two identical reports relating to the same transactions being filed with the Securities and Exchange Commission. F2 · security: Each Reporting Person may be deemed to be a member of a Section 13(d) group that owns more than 10% of the Issuer's outstanding shares of Common Stock. Each Reporting Person disclaims beneficial ownership of the shares of Common Stock reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such shares of Common Stock for purposes of Section 16 or for any other purpose. F3 · ownership.nature: Shares of Common Stock beneficially owned by Starboard V&O Fund. Starboard Value LP, as the investment manager of Starboard V&O Fund, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard V&O Fund. Each of Starboard Value GP, as the general partner of Starboard Value LP, Principal Co, as a member of Starboard Value GP, Principal GP, as the general partner of Principal Co, and Messrs. Smith, Mitchell and Feld, as members of Principal GP and as members of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP, may be deemed to be the beneficial owner of the shares of Common Stock beneficially owned by Starboard V&O Fund. Read SEC document
March 24, 2016 Filed Mar 7, 2017 01:51 UTC	DINARDO LOUISDirector	GiftCommon Stock	60,000	$0.00	$0.00	Disclosure SEC source: 0001209191-17-018532 · doc4.xml · nonDerivative · entry 1 DINARDO LOUIS · CIK 0001204394 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 255,392 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.