Document:

Copyright Security Agreement

 Exhibit 10.4 
  
 COPYRIGHT SECURITY AGREEMENT 
  
 Silicon Graphics, Inc., a Delaware corporation, Silicon Graphics Federal, Inc., a Delaware corporation, and Silicon Graphics
World Trade Corporation, a Delaware corporation (collectively, “Grantor”), for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, grant to Wells Fargo Foothill Capital, Inc., a
California corporation, as agent for and representative of (in such capacity herein called “Secured Party”) the Bank Product Provider and the financial institutions (“Lenders”) party to that certain Third Amended
and Restated Credit Agreement, entered into by and among the Grantor, Agent, and Lenders, dated as of October 24, 2005 ( the “Credit Agreement”), a continuing security interest in the following property. 
  
 (i) Each work of authorship of any kind, copyright,
copyright registration and recording, and copyright application listed on Schedule A hereto; and 
  
 (ii) All proceeds of the foregoing, including without limitation any claim by Grantor against third parties for damages (to the extent not
effectively prohibited by an applicable and legally enforceable license agreement) by reason of past, present or future infringement of any copyright registration and recording listed in Schedule A hereto, together with the right to sue for
and collect said damages; 
  
 to secure performance of all
Obligations of Grantor under the Credit Agreement and as set out in that certain Intellectual Property Security Agreement dated as of October 24, 2005, by and among Grantor and Secured Party (the “Agreement”).

  
 Grantor does hereby further acknowledge and affirm that the
rights and remedies of Secured Party with respect to the security interest in the works of authorship, copyrights, copyright registrations and recordings, and copyright applications made and granted hereby are more fully set forth in the Agreement,
the terms and provisions of which are incorporated by reference herein as if fully set forth herein. 
  
 All terms defined in the Agreement, whether by reference or otherwise, when used herein, shall have their respective meanings set forth therein, unless
the context requires otherwise. 

 IN WITNESS WHEREOF, Grantor has caused this Copyright Security Agreement to be duly executed as of
October 24, 2005. 
  

			
	GRANTOR:
	
	SILICON GRAPHICS, INC., a Delaware corporation
		
	 By:
	 	 /s/ Jean Furter

	 Name:
	 	 Jean Furter

	 Title:
	 	 Vice President, Treasurer

	
	SILICON GRAPHICS FEDERAL, INC., a Delaware corporation
		
	 By:
	 	 /s/ Jeff Zellmer

	 Name:
	 	 Jeff Zellmer

	 Title:
	 	 Vice President

	
	SILICON GRAPHICS WORLD TRADE CORPORATION, a Delaware corporation,
		
	 By:
	 	 /s/ Warren Pratt

	 Name:
	 	 Warren Pratt

	 Title:
	 	 Executive Vice President

	
	ACCEPTED BY SECURED PARTY:
	
	 WELLS FARGO FOOTHILL, INC., a California
 corporation, as Agent

		
	 By:
	 	 /s/ Mara Vaisz

	 Name:
	 	 Mara Vaisz

	 Title:
	 	 Vice PresidentPatent Security Agreement

 Exhibit 10.5 
  
 PATENT SECURITY AGREEMENT 
  
 Silicon Graphics, Inc., a Delaware corporation, Silicon Graphics Federal, Inc., a Delaware corporation, and Silicon Graphics
World Trade Corporation, a Delaware corporation (collectively, “Grantor”), for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, grant to Wells Fargo Foothill Capital, Inc., a
California corporation, as agent for and representative of (in such capacity herein called “Secured Party”) the Bank Product Provider and the financial institutions (“Lenders”) party to that certain Third Amended
and Restated Credit Agreement, entered into by and among the Grantor, Agent, and Lenders, dated as of October 24, 2005 ( the “Credit Agreement”), a continuing security interest in the following property: 
  
 (i) Each patent presently owned and listed on Schedule A hereto; and

  
 (ii) All proceeds of the foregoing, including without
limitation any claim by Grantor against third parties for damages (to the extent not effectively prohibited by an applicable and legally enforceable license agreement) by reason of past, present or future infringement of any patent now owned or
hereafter owned by Grantor, in each case together with the right to sue for and collect said damages: 
  
 to secure performance of all Obligations of Grantor under the Creditor Agreement and as set out in that certain Intellectual Property Security Agreement
dated as of October 24, 2005, by and among Grantor and Secured Party (the “Agreement”). 
  
 Grantor does hereby further acknowledge and affirm that the rights and remedies of Secured Party with respect to the security interest in the works of
authorship, patents, patent registrations and recordings made and granted hereby are more fully set forth in the Agreement, the terms and provisions of which are incorporated by reference herein as if fully set forth herein. 
  
 All terms defined in the Agreement, whether by reference or otherwise, when
used herein, shall have their respective meanings set forth therein, unless the context requires otherwise. 

 IN WITNESS WHEREOF, Grantor has caused this Patent Security Agreement to be duly executed as of
October 24, 2005. 
  

			
	GRANTOR:
	
	SILICON GRAPHICS, INC., a Delaware corporation
		
	By:	 	 /s/ Jean Furter

	Name:	 	Jean Furter
	Title:	 	Vice President, Treasurer
	
	 SILICON GRAPHICS FEDERAL, INC., a
 Delaware corporation

		
	By:	 	 /s/ Jeff Zellmer

	Name:	 	Jeff Zellmer
	Title:	 	Vice President
	
	SILICON GRAPHICS WORLD TRADE CORPORATION, a Delaware corporation
		
	By:	 	 /s/ Warren Pratt

	Name:	 	Warren Pratt
	Title:	 	Executive Vice President
	
	ACCEPTED BY SECURED PARTY:
	
	 WELLS FARGO FOOTHILL, INC., a California
 corporation, as Agent

		
	By:	 	 /s/ Mara Vaisz

	Name:	 	Mara Vaisz
	Title:	 	Vice PresidentTrademark Security Agreement

 Exhibit 10.6 
  
 TRADEMARK SECURITY AGREEMENT 
  
 Silicon Graphics, Inc., a Delaware corporation, Silicon Graphics Federal, Inc., a Delaware corporation, and Silicon Graphics
World Trade Corporation, a Delaware corporation (collectively, “Grantor”), for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, grant to Wells Fargo Foothill Capital, Inc., a
California corporation, as agent for and representative of (in such capacity herein called “Secured Party”) the Bank Product Provider and the financial institutions (“Lenders”) party to that certain Third Amended
and Restated Credit Agreement, entered into by and among the Grantor, Agent, and Lenders, dated as of October 24, 2005 ( the “Credit Agreement”), a continuing security interest in the following property: 
  
 (i) Each trademark, trademark registration and trademark
application listed on Schedule A hereto, and all of the goodwill of the business connected with the use of, and symbolized by, each such trademark, trademark registration and trademark application; and 
  
 (ii) All proceeds of the foregoing, including without
limitation any claim by Grantor against third parties for damages (to the extent not effectively prohibited by an applicable and legally enforceable license agreement) by reason of past, present or future infringement of any trademark or trademark
registration listed in Schedule A hereto or by reason of injury to the goodwill associated with any such trademark or trademark registration or trademark license, in each case together with the right to sue for and collect said damages;

  
 to secure performance of all Obligations of Grantor under the
Credit Agreement and as set out in that certain Amended and Restated Intellectual Property Security Agreement dated as of October 24, 2005, by and among Grantor and Secured Party (the “Agreement”). 
  
 Grantor does hereby further acknowledge and affirm that the rights and
remedies of Secured Party with respect to the security interest in the works of authorship, trademarks, trademark registrations and recordings, and trademark applications made and granted hereby are more fully set forth in the Agreement, the terms
and provisions of which are incorporated by reference herein as if fully set forth herein. 
  
 All terms defined in the Agreement, whether by reference or otherwise, when used herein, shall have their respective meanings set forth therein, unless the context requires otherwise. 

 IN WITNESS WHEREOF, Grantor has caused this Trademark Security Agreement to be duly executed as of
October 24, 2005. 
  

			
	GRANTOR:
	
	 SILICON GRAPHICS, INC., a Delaware
 corporation

		
	By:	 	 /s/ Jean Furter

	Name:	 	Jean Furter
	Title:	 	Vice President, Treasurer
	
	 SILICON GRAPHICS FEDERAL, INC., a
 Delaware corporation

		
	By:	 	 /s/ Jeff Zellmer

	Name:	 	Jeff Zellmer
	Title:	 	Vice President
	
	SILICON GRAPHICS WORLD TRADE CORPORATION, a Delaware corporation
		
	By:	 	 /s/ Warren Pratt

	Name:	 	Warren Pratt
	Title:	 	Executive Vice President
	
	ACCEPTED BY SECURED PARTY:
	
	 WELLS FARGO FOOTHILL, INC., a California
 corporation, as Agent

		
	By:	 	 /s/ Mara Vaisz

	Name:	 	Mara Vaisz
	Title:	 	Vice PresidentChaparral Steel Company Annual Incentive Plans

 Exhibit 10.18 
  
 

 
  
 CHAPARRAL STEEL COMPANY

 ANNUAL INCENTIVE PLANS 
 FISCAL YEAR 2006 
  

	1.	Purpose 

  

	 	a)	To provide shareholders of Chaparral Steel Company (the Company or Chaparral) with above-average returns. 

  

	 	b)	To encourage above-average performance and teamwork. 

  

	 	c)	To attract and retain the best employees by offering incentive awards that are high when compared to industry standards. 

  

	 	d)	To focus employee’s work on short-term results which are key to Chaparral’s long-term business success. 

  

	2.	Administration 

  

	 	a)	The Compensation Committee of the Board of Directors approves the Plans. 

  

	 	b)	The Chief Executive Officer, Chief Financial Officer, and the VP of Human Resources (the Incentive Plan Administrative Committee), together, have the authority to add or delete
acquired or divested operations to incentive plans and make adjustments to reflect the spirit and objectives of the Plan. Such changes will be reported to the Compensation Committee of the Board of Directors. 

  

	 	c)	The Plans will be communicated to participants during the first two months of the plan year. 

  

	3.	Participation 

  

	 	a)	All Chaparral regular employees not included in another incentive plan (e.g. production “P&M plans, or sales plans) are eligible to participate in these incentive plans
that consist of two Plant ROA Plans and a combined Chaparral ROA Plan. 

  

	 	b)	Eligible participants are those continuously employed by the Company during the performance award period or who become eligible during such period. Employees who change incentive
plan levels or eligibility during the Plan Year will have their award prorated for the applicable amount of time. 

  

	 	c)	A participant must be classified as a regular employee on May 31, 2006. 

  

	 	d)	The Incentive Plan Administrative Committee has the authority to lower an eligible employee’s participation in a Plan. Affected employees will be given an explanation in
writing. 

  

	 	e)	Participation in any incentive plan is not a guarantee of employment or compensation. 

  

 Page 1 

	 	f)	Unless otherwise determined by the Company, these plans do not cover employees of entities acquired during a plan year, by the Company, or employees who are covered by collective
bargaining agreements. 

  

	4.	Return on Equity (ROE) Objective 

  
 The Company has established an objective of having, over time, an average return on equity (ROE) 50% better than the average results of our industry. The
Company’s annual ROE objective is translated into a return-on-assets (ROA) goal which allows employees to use the Company’s monthly accounting of operating results to calculate progress toward goal achievement. 
  

	5.	Minimum Award Hurdles 

  
 Minimum award hurdles are set for each plant. The combined result of plant performances should produce a ROE better than the average results of our
industry. 
  

	6.	ROA Calculations 

  

	 	a)	ROA minimum award hurdles for each plant is calculated by dividing FY2006 operating profit (earnings before corporate overhead, interest and taxes) by the book value of the
operating assets. The book value of the adjusted operating assets of each plant is determined by averaging the book values of the adjusted operating assets at the beginning of the fiscal year and the book value of the adjusted operating assets at
the end of each of the four fiscal quarters. The addition of significant assets during the quarter will be prorated based on the time operated during such quarter. Profits and losses considered to be extraordinary (e.g., the sale of a major
operating facility) will not be included in the ROA calculation. The Incentive Plan Administrative Committee will make the decision as to whether an asset is significant or profits and losses are extraordinary at the time assets are acquired, placed
in service, or sold. 

  

	 	b)	Operating profit and assets are adjusted in order to treat assets on operating leases as owned assets. All ROA calculations include the costs of incentive awards.

  

	7.	Awards 

  

	 	a)	The incentive awards will be based on a participant’s regular earnings (including overtime and excluding earnings from incentive payments) for the plan year.

  

	 	b)	If a payment is made under any annual incentive plan, all taxes and other deductions required by law will be withheld. 

  

	 	c)	Awards will be distributed no later than the August 15th following the close of the fiscal year. 

  

 Page 2 

  

	 	d)	One plant can earn an award independent of the other. 

  

	8.	Chaparral Incentive Plans 

  

	 	a)	CHAPARRAL ROA PLAN 

  
 The Chaparral ROA Plan covers Officers, Vice Presidents, and employees in staff functions (Information Services, Legal, Environmental, Human Resources,
Controller, Financial Services and Treasury, etc.). 
  

	 	b)	PLANT ROA PLANS 

  
 Plant Plans cover facilities and employees whose combined efforts will obtain the best results for the Company. Participants include managers of each
operation/facility and employees not included in the Chaparral ROA Plan, Production (P&M), or Sales plans. 
  
 Plant ROA Plans 
  
 - Texas 
  
 - Virginia 

 

	 	C)	PRODUCTION PLANS 

  
 Production plans cover individual plant and operating areas whose performance can be more directly influenced by employees. Participation in these plans
can vary year-to-year and generally will include employees who are directly involved in the production process with the exception of General Managers or other employees designated as participants in ROA Plans. 
  
 Production plans’ objectives contribute to Plant plan goals but are not
necessarily tied directly to their ROA achievement. These plans are tailored to local needs and pay for improvement or above average performance. Plans may vary in goal achievement, timing of awards (weekly, monthly, quarterly, or annually),
objectives and award amounts. Base award amounts can vary from 5% to 20% although they are expected to average 5% to 10% over time. 
  

	 	d)	SALES PLANS 

  
 Sales plans cover business units where individual performance can be more directly influenced by employees. Participation in these plans can vary
year-to-year and generally will include sales, marketing, customer relations, and/or administrative support employees directly involved in the sales process. 
  

 Page 3 

 Sales plans’ objectives contribute to ROA Plant plan goals and may be tied directly to their ROA
achievement. These plans are tailored to business unit markets and pay for improvement or above average performance. Plans may vary in goal achievement, timing of awards (quarterly or annually), objectives and award amounts. Base award amounts can
vary from 10% to 30% depending on the participant level similar to the Chaparral and Plant Plans. 
  

	•	 	Operations/Production and Sales Plans are described in this document to provide the authority for individual plan development that will provide all eligible employees an opportunity
to participate in an incentive plan. 

  

	9.	PARTICIPATION ELIGIBILITY DEFINITIONS (CHAPARRAL ROA AND PLANT ROA PLANS) 

  
 PARTICIPANT A 
  

	 	•	 	Non-exempt employees 

  
 PARTICIPANT B 
  

	 	•	 	Exempt non-supervisory employees. 

  
 PARTICIPANT C 
  

	 	•	 	Supervisory positions in Salary Grades 11 or below. 

  

	 	•	 	Exempt employees in Salary Grades 10 or above reporting directly to a Vice President. 

  
 PARTICIPANT D 
  

	 	•	 	All employees in Salary Grades 12 or above. 

  
 PARTICIPANT E 
  

	 	•	 	All officers of CHAPARRAL excluding the President/CEO 

  
 PARTICIPANT F 
  

	 	•	 	President/CEO 

  

 Page 4 

	10.	ANNUAL INCENTIVE PLAN AWARD SCHEDULE 

  
 FY 2006 - RETURN-ON-ASSETS (ROA’s) 
 CHAPARRAL ROA Plan and Plant ROA Plan AWARD SCHEDULES 
  
 As of
the approval date of this plan, each plant’s assets will be weighted to reflect their fair market value. To calculate the total for the Chaparral ROA Plan, Texas’ assets will be weighted at 70% and Virginia assets will be weighted
at 30%. 
  
 PLANT AWARD SCHEDULES 
  

					
	 	  	CHAPARRAL ROA % *

	 Base Award %

	  	Texas

	  	Virginia

	 2**
	  	23	  	1
	 3
	  	24	  	2
	 4
	  	25	  	3
	 6
	  	26	  	4
	 8
	  	27	  	5
	 10
	  	28	  	6
	 12
	  	30	  	7
	 14
	  	32	  	8
	 16
	  	34	  	9
	 18
	  	36	  	10
	 21
	  	38	  	11
	 24
	  	40	  	12
	 27
	  	42	  	13
	 30
	  	44	  	14
	 33
	  	46	  	15
	 36
	  	48	  	16
	 39
	  	50	  	17
	 43
	  	52	  	18
	 47
	  	54	  	19
	 51
	  	56	  	20

	*	For achievement above those listed, each 2% increase of ROA in Texas and 1% increase of ROA in Virginia will add 4% to the base award. 

	**	Minimum Hurdle 

  

 Page 5 

	 	•	 	The achieved Plant ROA determines the BASE AWARD PERCENTAGE. 

  

	 	•	 	A participant’s eligibility determines the award multiplier. The total award percentage is calculated by multiplying the BASE AWARD PERCENTAGE by the participant’s
DESIGNATED AWARD MULTIPLIER. 

  

			
	 Participant
 Eligibility

	  	 Award
 Multiplier

	  
	 A
	  	1.0
	 B
	  	1.5
	 C
	  	2.0
	 D
	  	2.5
	 E
	  	3.0
	 F
	  	4.0

  

	 	•	 	The total percentage award is multiplied by the participant’s annual gross earnings excluding incentive payments. 

  

 Page 6

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