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Filing Details

Accession Number:: 0000921895-13-000947
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2013-05-06 20:30:36
Reporting Period:: 2013-05-02

Filing Date:: 2013-05-06
Accepted Time:: 2013-05-06 20:30:36
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
105076	Wausau Paper Corp.	WPP	Paper Mills (2621)	390690900

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
1373638	Ltd Fund Master Opportunity & Value Starboard	830 Third Avenue, 3Rd Floor New York NY 10022	No	No	Yes	No
1517137	Starboard Value Lp	830 Third Avenue, 3Rd Floor New York NY 10022	No	No	Yes	No
1517138	Starboard Value Gp Llc	830 Third Avenue, 3Rd Floor New York NY 10022	No	No	Yes	No
1517139	Starboard Principal Co Lp	830 Third Avenue, 3Rd Floor New York NY 10022	No	No	Yes	No
1517140	Starboard Principal Co Gp Llc	830 Third Avenue, 3Rd Floor New York NY 10022	No	No	Yes	No
1519812	Starboard Value & Opportunity S Llc	830 Third Avenue, 3Rd Floor New York NY 10022	No	No	Yes	No
1571704	Starboard Value & Opportunity C Lp	830 Third Avenue 3Rd Floor New York NY 10022	No	No	Yes	No
1575972	Starboard Value R Lp	830 Third Avenue 3Rd Floor New York NY 10022	No	No	Yes	No

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2013-05-02	62,855	$9.67	62,855	No	4	P	Indirect	By Starboard Value and Opportunity C LP
Common Stock	Acquisiton	2013-05-02	25,000	$9.71	87,855	No	4	P	Indirect	By Starboard Value and Opportunity C LP
Common Stock	Acquisiton	2013-05-03	62,145	$9.96	150,000	No	4	P	Indirect	By Starboard Value and Opportunity C LP
Common Stock	Acquisiton	2013-05-06	50,000	$9.92	200,000	No	4	P	Indirect	By Starboard Value and Opportunity C LP

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Indirect	By Starboard Value and Opportunity C LP
No	4	P	Indirect	By Starboard Value and Opportunity C LP
No	4	P	Indirect	By Starboard Value and Opportunity C LP
No	4	P	Indirect	By Starboard Value and Opportunity C LP

Footnotes

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 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"), Jeffrey C. Smith, Mark 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.
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.
Shares of Common Stock beneficially owned by Starboard C LP. Starboard R LP, as the general partner of Starboard C 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.