Exhibit 10.74

| |  | BUILDING: Ardenwood I-4 
| |  | ------------------------
| |  | PROPERTY: 01-0514       
| |  | UNIT: 1                 
| |  | LEASE ID: 0514 ABGE01-01

LEASE AGREEMENT

THIS LEASE, made this 22nd day of January, 2002 between JOHN ARRILLAGA, Trustee, or his Successor Trustee, UTA dated 7/20/77 (JOHN ARRILLAGA SURVIVOR'S TRUST) as
amended, and RICHARD T. PEERY, Trustee, or his Successor Trustee, UTA dated 7/20/77 (RICHARD T. PEERY SEPARATE PROPERTY TRUST) as amended, hereinafter called Landlord, and ABGENIX, INC., a Delaware
corporation, hereinafter called Tenant.

WITNESSETH:

Landlord hereby leases to Tenant and Tenant hereby hires and takes from Landlord those certain premises (the "Premises") outlined in red on Exhibit "A",
attached hereto and incorporated herein by this reference thereto more particularly described as follows:

All
of that certain 50,688+ square foot, one-story building located at 34700 Campus Drive, Fremont, California 94555. Said Premises is more particularly shown
within the area outlined in Red onExhibit Aattached hereto. The Premises shall include the entire parcel, of which the Building is a part, including exclusive parking appurtenant thereto, as shown within the area outlined in Green on Exhibit Aattached. The Premises is leased on an "as is" basis, in its present condition, and in the configuration as shown in Red onExhibit Bto be attached hereto.

The
word "Premises" as used throughout this lease is hereby defined to include the nonexclusive use of landscaped areas, sidewalks and driveways in front of or adjacent to the Premises,
and the nonexclusive use of the area directly underneath or over such sidewalks and driveways. The gross leasable area of the building shall be measured from outside of exterior walls to outside of
exterior walls, and shall include any atriums, covered entrances or egresses and covered building loading areas.

Said
letting and hiring is upon and subject to the terms, covenants and conditions hereinafter set forth and Tenant covenants as a material part of the consideration for the Lease to
perform and observe each and all of said terms, covenants and conditions. This Lease is made upon the conditions of such performance and observance.

1.    USETenant shall use the Premises only in conformance with applicable governmental laws, regulations, rules and ordinances
for the purpose of general office, light manufacturing, research and development (including biotechnological research and associated animal research) and storage and other uses as may be necessary or
appropriate for Tenant to conduct Tenant's business, provided that such uses shall be in accordance with all applicable governmental laws and ordinances, and for no other purpose without Landlord's
prior written consent. Tenant shall not do or permit to be done in or about the Premises nor bring or keep or permit to be brought or kept in or about the Premises anything which is prohibited by or
will in any way increase the existing rate of (or otherwise affect) fire or any insurance covering the Premises or any part thereof, or any of its contents, or will cause a cancellation of any
insurance covering the Premises or any part thereof, or any of its contents. Tenant shall not do or permit to be done anything in, on or about the Premises which will in any way obstruct or interfere
with the rights of other tenants or occupants of the Premises or neighboring premises or injure or annoy them, or use or allow the Premises to be used for any improper, immoral, unlawful or
objectionable purpose, nor shall Tenant cause, maintain or permit any nuisance in, on or about the Premises. No sale by auction shall be permitted on the Premises. Tenant shall not place any loads
upon

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the floors, walls or ceiling which endanger the structure, or place any harmful fluids or other materials in the drainage system of the building, or overload existing electrical or other mechanical
systems. No waste materials or refuse shall be dumped upon or permitted to remain upon any part of the Premises or outside of the building in which the Premises are a part, except in trash containers
placed inside exterior enclosures designated by Landlord for that purpose or inside of the building proper where designated by Landlord. No materials, supplies, equipment, finished products or
semi-finished products, raw materials or articles of any nature shall be stored upon or permitted to remain outside the Premises. Tenant shall not place anything or allow anything to be placed near
the glass of any window, door partition or wall which may appear unsightly from outside the Premises. No loudspeaker or other device, system or apparatus which can be heard outside the Premises shall
be used in or at the Premises without the prior written consent of Landlord. Tenant shall not commit or suffer to be committed any waste in or upon the Premises. Tenant shall indemnify, defend and
hold Landlord harmless against any loss, expense, damage, reasonable attorneys' fees, or liability arising out of failure of Tenant to comply with any applicable law relating to Tenant's use of the
Premises or for which
Tenant is otherwise obligated to comply under the terms of this Lease. Tenant shall comply with any covenant, condition, or restriction ("CC&R's") affecting the Premises. The provisions of this
paragraph are for the benefit of Landlord only and shall not be construed to be for the benefit of any tenant or occupant of the Premises.

2.    TERM*

A.    The
term of this Lease shall be for a period of TWELVE (12) years TWO (2) months (unless sooner terminated as hereinafter provided) and, subject to Paragraphs 2B and 3,
shall commence on the 1st day of May, 2002 and end on the 30th day of June, 2014.

B.    Possession
of the Premises shall be deemed tendered and the term of the Lease shall commence on May 1, 2002, or



3.    POSSESSIONIf Landlord, for any reason whatsoever, cannot deliver possession of said premises to Tenant at the commencement
of the said term, as hereinbefore specified, this Lease shall not be void or voidable; no obligation of Tenant shall be affected thereby; nor shall Landlord or Landlord's agents be liable to Tenant
for any loss or damage resulting therefrom; but in that event the commencement and termination dates of the Lease, and all other dates affected thereby shall be revised to conform to the date of
Landlord's delivery of possession, as specified in Paragraph 2B, above. The above is, however, subject to the provision that the period of delay of delivery of the Premises shall not exceed 60 days
from the commencement date hereof (except those delays caused by Acts of God, strikes, war, utilities, governmental bodies, weather, unavailable materials, and delays beyond Landlord's control shall
be excluded in calculating such period) in which instance Tenant, at its option, may, by written notice to Landlord, terminate this Lease.

4.    RENT

A.Basic Rent.Tenant agrees to pay to Landlord at such place as Landlord may designate without deduction, offset, prior
notice, or demand, and Landlord agrees to accept as Basic Rent for the leased Premises the total sum of FOURTEEN MILLION FOUR HUNDRED THOUSAND FOUR HUNDRED SIXTY AND 80/100 Dollars ($14,400,460.80) in
lawful money of the United States of America, payable as follows:

See
Paragraph 39 for Basic Rent Schedule

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B.Time for Payment.Full monthly rent is due in advance on the first day of each calendar month. In the event
that the term of this Lease commences on a date other than the first day of a calendar month, on the date of commencement of the term hereof Tenant shall pay to Landlord as rent for the period from
such date of commencement to the first day of the next succeeding calendar month that proportion of the monthly rent hereunder which the number of days between such date of commencement and the first
day of the next succeeding calendar month bears to thirty (30). In the event that the term of this Lease for any reason ends on a date other than the last day of a calendar month, on the first day of
the last calendar month of the term hereof Tenant shall pay to Landlord as rent for the period from said first day of said last calendar month to and including the last day of the term hereof that
proportion of the monthly rent hereunder which the number of days between said first day of said last calendar month and the last day of the term hereof bears to thirty (30).

C.Late Charge.Notwithstanding any other provision of this Lease, if Tenant is in default in the payment of
rental as set forth in this Paragraph 4 when due, or any part thereof, Tenant agrees to pay Landlord, in addition to the delinquent rental due, a late charge for each rental payment in default
ten (10) days. Said late charge shall equal ten percent (10%) of each rental payment so in default.

D.Additional Rent.Beginning with the commencement date of the term of this Lease, Tenant shall pay to Landlord
or to Landlord's designated agent in addition to the Basic Rent and as Additional Rent the following:



The
Additional Rent due hereunder shall be paid to Landlord or Landlord's agent (i) within five business days for taxes and insurance and within thirty days for all other
Additional Rent items after presentation of invoice from Landlord or Landlord's agent setting forth such Additional Rent and/or (ii) at the option of Landlord, Tenant shall pay to Landlord
monthly, in advance, Tenant's prorata share of an amount estimated by Landlord to be Landlord's approximate average monthly expenditure for such Additional Rent items, which estimated amount shall be
reconciled within 120 days of the end of each calendar year or more frequently if Landlord elects to do so at Landlord's sole and absolute discretion as compared to Landlord's actual expenditure for
said Additional Rent items, with Tenant paying to Landlord, upon demand, any amount of actual expenses expended by Landlord in excess of said estimated amount, or Landlord crediting to Tenant
(providing Tenant is not in default in the performance of any of the terms, covenants and conditions of this Lease) any amount of estimated payments made by Tenant in excess of Landlord's actual
expenditures for said Additional Rent items. Within thirty (30) days after receipt of Landlord's reconciliation, Tenant shall have the right, at Tenant's sole expense, to audit, at a mutually
convenient time at Landlord's office, Landlord's records relating to the foregoing expenses. Such audit must be conducted by Tenant or an independent nationally recognized accounting firm that is not
being compensated by Tenant or other third party on a

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contingency fee basis. If such audit reveals that Landlord has overcharged Tenant, the amount overcharged shall be credited to Tenant's account within thirty (30) days after the audit is concluded.

E.Fixed Management Fee.Beginning with the Commencement Date of the Term of this Lease, Tenant shall pay to
Landlord or Landlord's Assignee, in addition to the Basic Rent and Additional Rent, a fixed monthly management fee ("Management Fee") equal to one and one-half percent (1.5%) of the Basic Rent due for
each month during the Lease Term.

The
respective obligations of Landlord and Tenant under this paragraph shall survive the expiration or other termination of the term of this Lease, and if the term hereof shall expire or
shall otherwise terminate on a day other than the last day of a calendar year, the actual Additional Rent incurred for the calendar year in which the term hereof expires or otherwise terminates shall
be determined and settled on the basis of the statement of actual Additional Rent for such calendar year and shall be prorated in the proportion which the number of days in such calendar year
preceding such expiration or termination bears to 365.

F.Place of Payment of Rent and Additional Rent.All Basic Rent hereunder and all payments hereunder for
Additional Rent shall be paid to Landlord at the office of Landlord at PEERY/ARRILLAGA, FILE 1504, BOX 60000, SAN FRANCISCO, CA 94160 or to such other person or to such other place as Landlord may
from time to time designate in writing.

G.Security Deposit.Concurrently with Tenant's execution of this Lease, Tenant shall deposit with Landlord the
sum of ONE HUNDRED TWENTY-EIGHT THOUSAND SEVEN HUNDRED FIFTY-ONE AND NO/100 Dollars ($128,571.00). Said sum shall be held by Landlord as a Security Deposit for the faithful performance by Tenant of
all of the terms, covenants, and conditions of this Lease to be kept and performed by Tenant during the term hereof. If Tenant defaults with respect to any provision of this Lease, including, but not
limited to, the provisions relating to the payment of rent and any of the monetary sums due herewith, Landlord may (but shall not be required to) use, apply or retain all or any part of this Security
Deposit for the payment of any other amount which Landlord may spend by reason of Tenant's default or to compensate Landlord for any other loss or damage which Landlord may suffer by reason of
Tenant's default. If any portion of said Deposit is so used or applied, Tenant shall, within ten (10) days after written demand therefor, deposit cash with Landlord in the amount sufficient to restore
the Security Deposit to its original amount. Tenant's failure to do so shall be a material breach of this Lease. Landlord shall not be required to keep this Security Deposit separate from its general
funds, and Tenant shall not be entitled to interest on such Deposit. If Tenant fully and faithfully performs every provision of this Lease to be performed by it, the Security Deposit or any balance
thereof shall be returned to Tenant (or at Landlord's option, to the last assignee of Tenant's interest hereunder) at the expiration of the Lease term and after Tenant has vacated the Premises. In the
event of termination of Landlord's interest in this Lease, Landlord shall transfer said Deposit to Landlord's successor in interest whereupon Tenant agrees to release Landlord from liability for the
return of such Deposit or the accounting therefor.

5.    ACCEPTANCE AND SURRENDER OF PREMISESBe entry hereunder Tenant accepts the Premises as being in good and sanitary order,
condition and repair and accepts the building and improvements included in the Premises in their present condition and without representation or warranty by Landlord as to the condition of such
building or as to the use of occupancy which may be made thereof. Any exceptions to the foregoing must be by written agreement executed by Landlord and Tenant. Tenant agrees on the last day of the
Lease term or on the sooner termination of this Lease. To surrender the Premises promptly and ocaceably to Landlord in good condition and repair (damage by Acts of God, fire and other causes for which
Tenant does not have the obligation to repair under the other provisions of this Lease, and normal wear and tear excepted), with all interior walls painted, or cleaned so that they appear freshly
painted, and repainted, and repaired or replaced, if damaged; all floors cleaned and waved; all carpets cleaned and shampooed; all broken, marred or nonconforming acoustical ceiling files replaced;
all windows washed; the air conditioning and heating systems serviced

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by a reputable and licensed service firm and in good operating condition and repair; the plumbing and electrical systems and lighting in good order and repair, including replacement of any burned out
or ballast; the lawn and shrubs in good condition including the replacement of any dead or damaged plantings; the sidewalk, driveways and parking areas in good order, condition and repair; together
with all alterations, additions, and improvements which may have been made in, to, or on the Premises (except moveable trade fixtures installed at the expense of Tenant) except that Tenant shall
ascertain from Landlord within thirty (30) days before the end the term of this Lease whether Landlord desires
to have the Premises or any part or parts thereof restored to their condition and configuration as when the Premises were delivered to Tenant and if Landlord shall so desire, then Tenant shall restore
said Premises or such part or parts thereof before the end of this Lease at Tenant's sole cost and expense. Notwithstanding the above, Tenant shall not be required to remove such interior improvements
shown on Exhibit B to this Lease. Tenant on or before the end of the term or sooner termination of this Lease, shall remove all of Tenant's personal property and trace fixtures from the
Premises, and all property not so removed on or before on or before the end of the term or sooner termination of this Lease shall be deemed abandoned by Tenant and to same shall thereupon pass to
Landlord without compensation to Tenant. Landlord may, upon termination of this Lease, remove all moveable furniture and equipment so abandoned by Tenant, at Tenant's sole cost, and repair any damage
caused by such removal at Tenant's sole cost. If the Premises be not surrendered at the end of the term or sooner termination of this Lease. Tenant shall indemnify Landlord against loss or liability
resulting from the delay by Tenant in so surrendering the Premises including, without limitation, any claims made by any successful Tenant founded on such delay. Nothing contained herein shall be
construed as an extension of the term hereof or as a consent of Landlord to any holding given by Tenant. The voluntary or other surrender of this Lease or the Premises by Tenant or a mutual
cancellation of this Lease shall not work as a merger and. all the option of Landlord, shall either terminate all or any existing subleases or subleases or operate as an assignment to Landlord of all
or any such subleases or subtenancies.

6.    ALTERATIONS AND ADDITIONSTenant shall not make, or suffer to be made, any alteration or addition to the Premises, or any
part thereof, without the written consent of Landlord first had and obtained by Tenant (such consent not to be unreasonably withheld), but at the cost of the Tenant, and any addition to or allocation
of the Premises, except moveable furniture and trade fixtures, shall at once become a part of the Premises and upon Termination of this Lease belong to Landlord. Landlord reserves the right to approve
all contracts and mechanics proposed by Tenant to make such alterations and additions which approval shall not be unreasonably withheld. Tenant shall retain little to all moveable furniture and trade
fixtures placed in the Premises. All heating, lighting, electrical, air conditioning, floor to ceiling partitioning, drapery, carpeting, and floor installations made by Tenant, together with a
property that has become an integral part of the Premises, shall not be deemed trade failure. Tenant agrees that it will not proceed to make such alteration or additions, without having obtained
consent from Landlord to do so, and until five (5) days from the receipt of such consent. In order that Landlord may post appropriate notices to avoid any liability to contracts or materials suppliers
for payment for Tenant's improvements. Tenant will at all times permit such notices to be posted and to remain posted until the completion of work, Tenant shall, if required by Landlord, secure at
Tenant's own cost and expense, a completion and man indemnity band, satisfactory to Landlord, for such work. Tenant further covenants and agrees that any mechanic's lien filed against the Premises for
work claimed to have been done for, or materials claimed to have been furnished to Tenant, will be discharged by Tenant, by band or otherwise, within ten (10) days after notice of the filing thereof,
at the cost and expense of Tenant. Any excepting to the foregoing must be made in writing and executed by both Landlord and Tenant.

7.    TENANT MAINTENANCESubject to the provisions of Paragraph 21, Tenant shall, at its sole cost and expense, keep and
maintain the Premises (including appurtenances) and every part thereof in a-high standard of maintenance and repair, or replacement,an in good and sanitary condition. Tenant's maintenance and repair
responsibilities herein referred to include, but are not limited to, amortization,

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all windows (interior and exterior), window frames, plate glass and glazing (destroyed by accident or act of third parties), truck doors, plumbing systems (such as water and drain lines, sinks,
toilets, faucets,
drains, showers and water fountains), electrical systems (such as panels, conduits, outlets, lighting fixtures, lamps, bulbs, tubes, and ballasts), heating and air conditioning systems (such as
compressors, fans, air handlers, ducts, mixing boxes, thermostats, time clocks, boilers, heaters, supply and return grills), structural elements and exterior surfaces of the building, store fronts,
roofs, downspouts, all interior improvements within the premises including but not limited to wall coverings, window coverings, carpet, floor coverings, partitioning, ceilings, doors (both interior
and exterior), including closing mechanisms, latches, locks, skylights (if any), automatic fire extinguishing systems, and elevators and all other interior improvements of any nature whatsoever, and
all exterior improvements including but not limited to landscaping, sidewalks, driveways, parking lots including striping and seating, sprinkler systems, lighting, ponds, fountains, waterways, and
drains. Tenant agrees to provide carpet shields under all rolling chairs or to otherwise be responsible for wear and tear of the carpet caused by such rolling chairs if such wear and tear excess that
caused by normal tool traffic in surrounding areas. Areas of excessive wear shall be replaced all Tenant's sole expense upon Lease termination. Tenant hereby waives all rights under, and benefits of,
Subsection 1 of Section 1932 and Section 1341 and 1942 of the California Civil Code and under any similarities law, statute or ordinance now or hereafter in effect. In the event any of the above
maintenance responsibilities apply to any other tenant(s) of Landlord where there is common usage with other tenant(s), such maintenance responsibilities and charges shall be allocated to the leased
Premises by square footage or other equitable and determined by Landlord.

8.    UTILITIESTenant shall pay promptly, as the same become due, all charged for water, gas, electricity, telephone, telex and
other electronic communication service, sewer service, waste pick-up and any other Utilities, materials or services furnished directly to or used by Tenant or about the Premises during the term of
this Lease, including, without limitation, any temporary or permanent utility surcharge or other exactinos whether or not hereinafter imposed. In the event the above charges apply in any other
tenant(s) of Landlord where there is common usage with other tenant(s), such charges shall be allocated to the leased Premises by square footage or other equitable basis as calculated and determined
by Landlord.

Landlord
shall not be liable for and Tenant shall not be entitled to any abatement or reduction of rent by reason of any interruption or failure of utility services in the Premises when
such interruption or failure is caused by accident, breakage, repair, strikes, lockouts, or other labor disturbances or labor disputes of any nature, or by any other cause, similar or dissimilar,
beyond the reasonable control of Landlord.

9.    TAXES

A.    As
Additions Rent and in accordance with Paragraph 4D of this Lease, Tenant shall pay to Landlord, or if Landlord so directs, directly to the Tax Collector, all Real
Property Taxes relating to the Premises accruing with respect to the Premises during the Term of this Lease. In the event the Premises leased hereunder consists of only a portion of the entire tax
parcel, Tenant shall pay to Landlord as they become due Tenant's proportionate share of such real estate taxes allocated to the leased Premises by square footage or other reasonable basis as
calculated and determined by Landlord, if the tax billing partains 100% to the leased Premises, and Landlord chooses to have Tenant pay said real estate taxes directly to the Tax Collector, then in
such event it shall be the responsibility of Tenant to obtain the tax and assessment bills and pay, prior to delinquency, the applicable real property taxes and assessments
pertaining to the leased Premises, and failure to receive a bill for taxes and/or assessments shall not provide a basis for cancellation of or nonresponsibility for payment of penalties for nonpayment
or late payment by Tenant. The term "Real Property Taxes", as used herein, shall mean (i) all taxes, assessments, levies and other charges of any kind or nature whatsoever, general and special,
foreseen and unforeseen (including all installations of principal and interest required to pay any general special assessments for public improvements and any increases resulting from reassessments

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caused by any change in ownership of the Premises) now or hereafter imposed by any governmental or quasi-governmental authority or special district having the direct or indirect power to tax or levy
assessments, which are levied or assessed against, or with respect to the value, occupancy or use of, all or any portion of the Premises (as now constructed or as may at any time hereafter be
constructed, altered, or otherwise changed) or Landlord's interest therein; any improvements located within the Premises (regardless of ownership); the failures, equipment and other property of
Landlord, neat or personal, that are an integral part if located in the Premises; or parking areas, public utilities, or energy within the Premises; (ii) all charges, levies or fees imposed by reason
of environmental regulation or other governmental control of the Premises, excluding any taxes related to on-site Hazardous Materials contamination which Tenant did not cause or contribute to; and
(iii) all costs and fees (including reasonable attorneys' fees) incurred by Landlord in reasonably contesting any Real Property Tax and in negotiating with public authorities as to any Real Property
Tax, if at any time during the term of this Lease the taxation or assessment of the Premises prevailing as of the commencement date of this Lease shall be altered so that in lieu of or in addition to
any Real Property Tax described above there shall be levied, assessed or imposed (whether by reason or change in the method of taxation or assessment, creation of a new tax exchange, or any other
cause) an alternate or additional tax or charge (i) on the value, use or occupancy of the Premises of Landlord's interest therein or (ii) on or measured by the gross receipts, income or rentals from
the Premises, on Landlord's business of leasing the Premises, or computed in any manner with respect to the Premises, then any such tax or charge, however designatee shall be included within the
meaning of the term "Real Property Taxes" for purposes of this Lease, if any Real Property Tax is based upon property or rents unrelated to the Premises, then only that part of such Real Property Tax
that is fairly allocable to the Premises shall be included within the meaning of the term "Real Property Taxes". Notwithstanding the foregoing, the term "Real Property Taxes" shall not include estate,
inheritance, gift or franchise fares of Landlord or the federal or state net income tax imposed on Landlord's income from all sources or other personal taxes measured by the net income (as
distinguished from gross income) of Landlord from the leasing of the Premises either separately or together with other property. SEE PARAGRAPH 46

B.Taxes on Tenant's PropertyTenant shall be liable for and shall pay ten days before delinquency, taxes levied
against any personal property or trade fixtures placed by Tenant in or about the Premises. If any such taxes on Tenant's personal property or trade fixtures are levied against Landlord or Landlord's
property or if the assessed value of the Premises is increased by the inclusion therein of a value placed upon personal property or trade fixtures Tenant and if Landlord, after written notice to
Tenant, pays the taxes based on such increased assessment, which Landlord shall have the right to do regardless of the validity thereof, but only under proper protest if requested by Tenant, Tenant
shall within ten (10) days after demand, as the case may be, repay to Landlord the taxes so levied against Landlord, or the proportion of such taxes resulting from such increase in the assessment;
provided that in any such event Tenant shall have the right. In the name of Landlord and with Landlord's full cooperation, to bring suit in any court of competent jurisdiction to recover the amount of
such taxes so paid under protest, and any amount so recovered shall belong to Tenant.

10.    LIABILITY INSURANCETenant, at Tenant's expense, agrees to keep in force during the term of this Lease's policy of
commercial general liability insurance with combined single limit coverage of not less than Two Million Dollars ($2,000,000), per occurrence for bodily injury and property damage occurring in, on or
about the Premises, including parking and landscaped areas. Such insurance shall be primary and noncontributary as respects any insurance carried by Landlord. The policy or policies effecting such
insurance shall name Landlord as additional insureds, and shall insure any liability of Landlord, contingent or otherwise; as respects acts or omission of Tenant. Its agents, employees or invitees or
otherwise by any conduct or transactions of any of said persons in or about or concerning the Premises including any failure of Tenant to observe or perform any of its obligations hereunder; shall be
issued by an insurance company admitted to transact business in the State of California; and shall provide that the insurance effected thereby shall not be canceled, except upon thirty (30) days

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prior written notice to Landlord. A certificate of insurance said policy shall be delivered to Landlord. If, during the term of this Lease, in the considered opinion of Landlord's Lender, Insurance
advisor, or counsel, the amount of Insurance described in this Paragraph 10 is not adequate, Tenant agrees to increase said coverage to such reasonable amount as Landlord's Lender, insurance advisor,
or counsel shall deem adequate.

11.    TENANT'S PERSONAL PROPERTY INSURANCE AND WORKMAN'S COMPENSATION INSURANCETenant shall maintain a policy or policies of
fire and property damage insurance in "all risk" form with a sprinkler leakage endorsement ensuring the personal property, inventory, trade fixtures, and leasehold improvements within the leased
Premises for the full replacement value thereof. The proceeds from any of such policies shall be used for the repair or replacement of such items so insured.

Tenant
shall also maintain a policy or policies of workman's compensation insurance and any other employee benefit insurance sufficient to comply with all laws.

12.    PROPERTY INSURANCELandlord shall purchase and keep in force, and as Additional Rent and in accordance with Paragraph 4D
of this Lease. Tenant shall pay to Landlord (or Landlord's agent of so directed by Landlord) Tenant's proportional share (allocated to the leased Premises by square footage or other equitable basis as
calculated and determined by Landlord) of the deductibles on insurance claims and the cost of, policy of policies of insurance covering loss or damage to the Premises (excluding routine maintenance
and repairs and incidental damage or destruction caused by accidents or vandalism for which Tenant is responsible under Paragraph 7) in the amount of the full replacement value thereof, providing
protection against those parts included within the classification of "all risks" insurance and flood and/or earthquake insurance. If available, plus a policy of rental income insurance in the amount
of one hundred (100%) percent of twelve (12) months Basic Rent, plus sums paid as Additional Rent, if such insurance cost is increased due to Tenant's use of the Premises, Tenant agrees to pay to
Landlord the full cost of such increase. Tenant shall have no interest in nor any right to the proceeds of any insurance procured by Landlord for the Premises.

Landlord
and Tenant do each hereby respectively release the other, to the extent of insurance coverage of the releasing party, from any liability for less or damage caused by fire or any
of the extended
coverage casualties included in the releasing party's insurance policies. Irrespective of the cause of such fire or casualty; provided, however, that if the insurance policy of either releasing party
prohibits such waiver, then this waiver shall not take effect until consent to such waiver is obtained. If such waiver is so prohibiting, the insured party affected shall promptly notify the other
party thereof.

13.    INDEMNIFICATIONLandlord shall not be liable to Tenant and Tenant hereby waives all claims against Landlord for any injury
to or death any person or damage to or destruction of property in or about the Premises by or from any cause whatsoever, including, without limitation, gas, fire, oil, electricity or leakage of any
character from the roof, walls, basement or other portions of the Premises but excluding, however, the willful misconduct or negligence of Landlord, its agents, servants, employees, invitees, or
contractors of which negligence Landlord has knowledge and reasonable time to correct. Except as to injury to persons or damage to property to the extent arising from the willful misconduct or the
negligence of Landlord, its agents, servants, employees, invitees, or contractors, Tenant shall hold Landlord harmless from and defend Landlord against any and all expenses, including reasonable
attorney's fees. In connection therewith, arising out of any injury to or death of any person or damage to or destruction or property occurring in, on or about the Premises, of any part thereof, from
any causes whatsoever.

14.    COMPLIANCETenant, at its sole cost and expense, shall promptly comply with all laws, statutes, ordinances and
governmental rules, regulations of its agents, servants, employees, invitees, or contractors requirements now or hereafter in effect; with the requirements of any board of fire underwriters or other
similar body now or hereafter constituted; and with any direction or occupancy certificate issued pursuant to law by any public officer, provided, however, that no such failure shall be

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deemed a breach of the provisions. If Tenant, immediately upon notification, commences to remedy or rectify said failure. The judgement of any court of competent jurisdiction or the admission of
Tenant in any action against Tenant, whether Landlord be a party thereto or not, that Tenant has violated any such law, statute, ordinance or governmental rule, regulation, requirement, direction or
provision, shall be conclusive of that fact as between Landlord and Tenant. Tenant shall, at its sole cost and expense, comply with any and all requirements pertaining to said Premises, of any
insurance organization or company, necessary for the maintenance of reasonable fire and public liability insurance covering requirements pertaining to said Premises.

15.    LIENSTenant shall keep the Premises free from any liens arising out of any work performed, materials furnished or
obligation incurred by Tenant, in the event that Tenant shall not, within ten (10) days following notice of the imposition of such lien, cause the same to be released of record. Landlord shall have,
in addition to all other remedies provided herein and by law, the right (after two days written notice), but no obligation, to cause the same to be released by such means as if shall deem proper,
including payment of the claim giving rise to such lien. All sums paid by Landlord for such purpose, and all expense incurred by it in connection therewith, shall be payable to Landlord by Tenant on
demand with interest at the prime rate of interest as quoted by the Bank of America.

16.    ASSIGNMENT AND SUBLETTINGTenant shall assign, transfer, or hypothecate the leasehold estate under this Lease, of any
interest therein, and shall not sublet the Premises,or any part thereof, or any
right or privilege appurtenant thereto, or suffer any other person or entity to occupy or use the Premises, or any portion thereof, without, in increase, the prior written consent of Landlord which
consent will not be unreasonably withheld. As a condition for granting this consent to any assignment, transfer, or subletting. Landlord may require that Tenant agrees to pay to Landlord, as
Additional Rent, twenty-five percent (25%) of all rents or additional consideration received by Tenant from its assignees, transferees, or subleasees in excess of the Rent payable by Tenant to
Landlord hereunder ("Excess Rent"); provided, however, that before sharing such Excess Rent, Tenant shall first be entitled to recover from such Excess Rent (i) the amount of any reasonable leasing
commissions paid by Tenant to third parties not affiliated with Tenant and (ii) Tenant's unamortized costs, excluding costs of interest (if any), to construct interior improvements in the area being
sublet for said subtenant(s). Tenant shall, by thirty (30) days written notice, advice Landlord of its intent to assign or transfer Tenant's interest in the Lease or sublet the Premises or any portion
thereof for any part of the term hereof. Within thirty (30) days after receipt of said written notice, Landlord may, in its sole discretion elect to terminate this Lease as to the portion of the
Premises described in Tenant's notice on the date specified in Tenant's notice by giving written notice of such election to terminate (provided Tenant intends to sublet 50% or more of the Premises) If
no such notice to terminate is given to Tenant within said thirty (30) day period. Tenant may proceed to locate an acceptable sublease, assignor, or other transfer for presentment to Landlord for
Landlord's approval, all in accordance with the lease, covenant and condition of this paragraph 16. If Tenant intends to sublet Premises and Landlord elects to terminate this Lease, this Lease shall
be terminated on the date specified in Tenant's notice. If, however, this Lease shall terminate pursuant to the foregoing with respect to less than all the Premises, the rent as defined and reserved
hereinabove shall be adjusted on a pro rata basis to the number of square feet retained by Tenant, and this Lease as so amended shall continue in full force and effect. In the event Tenant is allowed
to assign, transfer or sublet the whole or any part of the Premise, with the prior written consent of Landlord, no assignee, transferee or subtenant shall assign or transfer this Lease, either in
whole or in part, or sublet the whole or any part of the Premises without having obtained prior written consent of Landlord which consent shall not be unreasonably withheld. A consent of Landlord to
one assignment, transfer, hypothecation, subletting, occupation or use without such consent shall be void and shall constitute a breach of this Lease by Tenant and shall, if the option of Landlord
exercised by written notice to Tenant, terminate this Lease. The leasehold estate under this Lease shall not shall any interest therein, be assignable for any purpose by operation of law without the
written consent of Landlord which consent shall not be unreasonably withheld. As a condition to its consent,

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Landlord may require Tenant to pay all expenses in connection with the assignment, and Landlord may require Tenant's assignee or transferee (or other assignees or transferees) to assume in writing
all of the obligations under this Lease and for Tenant to remain liable to Landlord under the Lease. SEE PARAGRAPH 42

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17.    SUBORDINATION AND MORTGAGESIn the event Landlord's title or leasehold interest is now or hereafter encumbered by a deed
of trust, upon the interest of Landlord in the land and buildings in which the demised Premises are located, to secure a loan from a lender thereinafter referred to as "Lender" to Landlord, Tenant
shall, at the request of Landlord or Lender, execute in writing an agreement (in form reasonably acceptable to Tenant) subordinating its rights under this Lease to the lien of such deed of trust, or,
if so requested, agreeing that the lien of Lender's deed of trust shall be or remain subject and subordinate to the rights of Tenant under this Lease. Notwithstanding any such subordination, Tenant's
possession under this Lease shall not be disputed if Tenant is not in default and so long as Tenant shall pay all rent and observe and perform all of the provisions set forth in this Lease and any
Subordination agreement shall reflect the agreement of the Lender to the same. SEE PARAGRAPH 47

18.    ENTRY BY LANDLORDLandlord reserves, and shall at all reasonable times after at least 24 hours notice (except in
emergencies) have, the right to enter the Premises to inspect them; to perform any services to be provided by Landlord hereunder; to make repairs or provide any services to a contiguous tenant(s); to
submit the Premises to prospective purchasers, mortgagors or tenants; to post notices of nonresponsibility; and to alter, improve or repair the Premises or other parts of the building, all without
abatement of rent, and may erect scaffolding and other necessary structures in or through the Premises where reasonably required by the character of the work to be performed provided, however that the
business of Tenant shall be interfered with to the least extent that is reasonably practical. Any entry to the Premises by Landlord for the purposes provided for herein shall not under any
circumstances be construed or deemed to be a forcible or unlawful entry into or a detainer of the Premises or an eviction, actual or constructive, of Tenant from the premises or any portion thereof.

19.    BANKRUPTCY AND DEFAULTThe commencement of a bankruptcy action or liquidation action or reorganization action or
insolvency action or an assignment of or by Tenant for the benefit of creditors, or any similar action undertaken by Tenant, or the insolvency of Tenant, shall, at Landlord's option, constitute a
breach of this Lease by Tenant. If the trustee or receiver appointed to serve during a bankruptcy, liquidation, reorganization, insolvency or similar action elects to reject Tenant's unexpired Lease,
the trustee or receiver shall notify Landlord in writing of its election within thirty (30) days after an order for relief in a liquidation action or within thirty (30) days after the commencement of
any action.

Within
thirty (30) days after court approval of the assumption of this Lease, the trustee or receiver shall cure (or provide adequate assurance to the reasonable satisfaction of Landlord
that the trustee or receiver shall cure) any and all previous defaults under the unexpired Lease and shall compensate Landlord for all actual pecuniary loss and shall provide adequate assurance of
future performance under said Lease to the reasonable satisfaction of Landlord. Adequate assurance of future
performance, as used herein, includes, but shall not be limited to: (i) assurance of source and payment of rent, and other consideration due under this Lease; (ii) assurance that the
assumption or assignment of this Lease will not breach substantially any provision, such as radius, location, use, or exclusivity provision, in any agreement relating to the above described Premises.

Nothing
contained in this section shall affect the existing right of Landlord to refuse to accept an assignment upon commencement of or in connection with a bankruptcy, liquidation,
reorganization or insolvency action or an assignment of Tenant for the benefit of creditors or other similar act. Nothing contained in this Lease shall be construed as giving or granting or creating
an equity in the demised Premises to Tenant. In no event shall the leasehold estate under this Lease, or any interest therein, be assigned by voluntary or involuntary bankruptcy proceeding without the
prior written consent of Landlord. In no event shall this Lease or any rights or privileges hereunder be an asset of Tenant under any bankruptcy, insolvency or reorganization proceedings.

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The
failure to perform or honor any covenant, condition or representation made under this Lease shall constitute a default hereunder by Tenant upon expiration of the appropriate grace
period hereinafter provided. Tenant shall have a period of five (5) business days from the date of written notice from Landlord within which to cure any default in the payment of rental or adjustment
thereto. Tenant shall have a period of thirty (30) days from the date of written notice from Landlord within which to cure any other default under this Lease; provided, however, that if the nature of
Tenant's failure is such that more than thirty days is reasonably required to cure the same, Tenant shall not be in default so long as Tenant commences performance within such thirty day period and
thereafter prosecutes the same to completion.

Upon
an uncured default of this Lease by Tenant, Landlord shall have the following rights and remedies in addition to any other rights or remedies available to Landlord at law or in
equity:



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20.    ABANDONMENTTenant shall not vacate or abandon the Premises at any time during the term of this Lease (except that Tenant
may vacate so long as it pays Rent, provides a security service to check the Premises during normal business hours from Monday to Friday, and otherwise performs its obligations hereunder) and if
Tenant shall abandon, vacate or surrender said Premises, or be
dispossessed by the process of law, or otherwise, any personal property belonging to Tenant and left on the Premises shall be deemed to be abandoned, at the option of Landlord, except such property as
may be mortgaged to Landlord.

21.    DESTRUCTIONIn the event the Premises are destroyed in whole or in part from any cause, except for routine maintenance and
repairs and incidental damage and destruction or caused from vandalism and accidents for which Tenant is responsible under Paragraph 7, Landlord may, at its option:



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Unless
this Lease is terminated pursuant to the foregoing provisions, this Lease shall remain in full force and effect. Tenant hereby expressly waives the provisions of Section 1932,
Subdivision 2, in Section 1933, Subdivision 4 of the California Civil Code.

In
the event that the building in which the Premises are situated is damaged or destroyed to the extent of not less than 331/3% of the replacement cost thereof, Landlord
may elect to terminate this Lease, whether the Premises be injured or not.

22.    EMINENT DOMAINIf all or any part of the Premises shall be taken by any public or quasi-public authority under the power
of eminent domain or conveyance in lieu thereof, this Lease shall terminate as to any portion of the Premises so taken or conveyed on the date when title vests in the condemnor, and Landlord shall be
entitled to any and all payment, income, rent, award, or any interest therein whatsoever which may be paid or made in connection with such taking or conveyance, and Tenant shall have no claim against
Landlord or otherwise for the value of any unexpired term of this Lease. Notwithstanding the foregoing paragraph, any compensation specifically awarded Tenant for loss of business, Tenant's personal
property, moving cost or loss of goodwill, shall be and remain the property of Tenant.

If
any action or proceeding is commenced for such taking of the Premises or any material part thereof, then Landlord shall have the right to terminate this Lease by giving Tenant written
notice thereof within sixty (60) days of the date of receipt of said written advice, or commencement of said action or proceeding, or taking conveyance, which termination shall take place as of the
first to occur of the last day of the calendar month next following the month in which such notice is given or the date on which title to the Premises shall vest in the condemnor.

In
the event of such a partial taking or conveyance of the Premises, if the portion of the Premises taken or conveyed is so substantial that the Tenant can no longer reasonably conduct
its business, Tenant shall have the privilege of terminating this Lease within sixty (60) days from the date of such taking or conveyance, upon written notice to Landlord of its intention to do so,
and upon giving of such notice this Lease shall terminate on the last day of the calendar month next following the month in which such notice is given, upon payment by Tenant of the rent from the date
of such taking or conveyance to the date of termination.

If
a portion of the Premises be taken by condemnation or conveyance in lieu thereof and neither Landlord nor Tenant shall terminate this Lease as provided herein, this Lease shall
continue in full force and effect as to the part of the Premises not so taken or conveyed, and the rent herein shall be apportioned as of the date of such taking or conveyance so that thereafter the
rent to be paid by Tenant shall be in the ratio that the area of the portion of the Premises not so taken or conveyed bears to the total area of the Premises prior to such taking.

23.    SALE OR CONVEYANCE BY LANDLORDIn the event of a sale or conveyance of the Premises or any interest therein, by any owner
of the reversion then constituting Landlord, the transferor shall thereby be released as to such interest transferred from any further liability upon any of the terms, covenants or conditions (express
or implied) herein contained in favor of Tenant, and in such event, insofar as such transfer is concerned, Tenant agrees to look solely to the responsibility of the successor in interest of such
transferor in and to the Premises and this Lease. This Lease shall not be affected by any such sale or conveyance, and Tenant agrees to attorn to the successor in interest of such transferor.

24.    ATTORNMENT TO LENDER OR THIRD PARTYIn the event the interest of Landlord in the land and buildings in which the leased
Premises are located (whether such interest of Landlord is a fee title
interest or a leasehold interest) is encumbered by deed of trust, and such interest is acquired by the lender or any third party through judicial foreclosure or by exercise of a power of sale at
private trustee's foreclosure sale, Tenant hereby agrees to attorn to the purchaser at any such foreclosure sale and to recognize such purchaser as the Landlord under this Lease. In the event the lien
of the deed of

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trust securing the loan from a Lender to Landlord is prior and paramount to the Lease, this Lease shall nonetheless continue in full force and effect for the remainder of the unexpired term hereof,
at the same rental herein reserved and upon all the other terms, conditions and covenants herein contained.

25.    HOLDING OVERAny holding over by Tenant after expiration or other termination of the term of this Lease with the written
consent of Landlord delivered to Tenant shall not constitute a renewal or extension of the Lease or give Tenant any rights in or to the leased Premises except as expressly provided in this Lease. Any
holding over after the expiration or other termination of the term of this Lease, with the consent of Landlord, shall be construed to be a tenancy from month to month, on the same terms and conditions
herein specified insofar as applicable except that the monthly Basic Rent shall be increased to an amount equal to one hundred fifty (150%) percent of the monthly Basic Rent required during the last
month of the Lease term.

26.    CERTIFICATE OF ESTOPPELTenant shall at any time upon not less than ten (10) days prior written notice from Landlord
execute, acknowledge and deliver to Landlord a statement in writing (i) certifying that this Lease is unmodified and in full force and effect (or, if modified, stating the nature of such
modification and certifying that this Lease, as so modified, is in full force and effect) and the date to which the rent and other charges are paid in advance, if any, and (ii) acknowledging
that there are not, to Tenant's knowledge, any uncured defaults on the part of the Landlord hereunder, or specifying such defaults, if any are claimed. Any such statement may be conclusively relied
upon by any prospective purchaser or encumbrancer of the Premises. Tenant's failure to deliver such statement within such time shall be conclusive upon Tenant that this Lease is in full force and
effect without modification except as may be represented by Landlord; that there are no uncured defaults in Landlord's performance, and that not more than one month's rent has been paid in advance.

27.    CONSTRUCTION CHANGESIt is understood that the description of the Premises and the location of ductwork, plumbing and
other facilities therein are subject to such minor changes as Landlord or Landlord's architect determines to be desirable in the course of construction of the Premises, and no such changes shall
effect this Lease or entitle Tenant to any reduction of rent hereunder or result in any liability of Landlord to Tenant. Landlord does not guarantee the accuracy of any drawings supplied to Tenant and
verification of the accuracy of such drawings rests with Tenant.

28.    RIGHT OF LANDLORD TO PERFORMAll terms, covenants and conditions of this Lease to be performed or observed by Tenant shall
be performed or observed by Tenant at Tenant's sole cost and expense and without any reduction of rent. If Tenant shall fail to pay any sum of money, or other rent, required to be paid by it hereunder
and such failure shall continue for five (5) days after written notice by Landlord, or shall fail to perform any other term or covenant hereunder on its part to be performed, and such failure shall
continue for thirty (30) days after written notice thereof by Landlord,
Landlord, without waiving or releasing Tenant from any obligation of Tenant hereunder, may, but shall not be obliged to, make any such payment or perform any such other term or covenant on Tenant's
part to be performed. All sums so paid by Landlord and all necessary costs of such performance by Landlord together with interest thereon at the rate of the prime rate of interest per annum as quoted
by the Bank of America from the date of such payment or performance by Landlord, shall be paid (and Tenant covenants to make such payment) to Landlord within five (5) business days after demand by
Landlord, and Landlord shall have (in addition to any other right or remedy of Landlord) the same rights and remedies in the event of nonpayment by Tenant as in the case of failure by Tenant in the
payment of rent hereunder.

29.    ATTORNEYS' FEES

A.    In
the event that either Landlord or Tenant should bring suit for the possession of the Premises, for the recovery of any sum due under this Lease, or because of the
breach of any provision of this Lease, or for any other relief against the other party hereunder, then all costs and expenses,

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including reasonable attorneys' fees, incurred by the prevailing party therein shall be paid by the other party, which obligation on the part of the other party shall be deemed to have accrued on the
date of the commencement of such action and shall be enforceable whether or not the action is prosecuted to judgment.

B.    Should
Landlord be named as a defendant in any suit brought against Tenant in connection with or arising out of Tenant's occupancy hereunder, Tenant shall pay to Landlord
its costs and expenses incurred in such suit, including a reasonable attorney's fee.

30.    WAIVERThe waiver by either party of the other party's failure to perform or observe any term, covenant or condition
herein contained to be performed or observed by such waiving party shall not be deemed to be a waiver of such term, covenant or condition or of any subsequent failure of the party failing to perform
or observe the same or any other such term, covenant or condition therein contained, and no custom or practice which may develop between the parties hereto during the term hereof shall be deemed a
waiver of, or in any way affect, the right of either party to insist upon performance and observance by the other party in strict accordance with the terms hereof.

31.    NOTICESAll notices, demands, requests, advices or designations which may be or are required to be given by either party
to the other hereunder shall be in writing. All notices, demands, requests, advices or designations by Landlord to Tenant shall be sufficiently given, made or delivered if personally served on Tenant
by United States certified or registered mail, postage prepaid, or by a reputable same day or overnight courier service, addressed to Tenant at the Premises Attn: President. All notices, demands,
requests, advices or designations by Tenant to Landlord shall be sent by United States certified or registered mail, postage prepaid, addressed to Landlord at its offices at Peery/Arrillaga, 2560
Mission
College Blvd., Suite 101, Santa Clara, CA 95054. Each notice, request, demand, advice or designation referred to in this paragraph shall be deemed received on the date of receipt or refusal to accept
receipt of the mailing thereof in the manner herein provided, as the case may be. Either party shall have the right, upon ten (10) days written notice to the other, to change the address noted herein.

32.    EXAMINATION OF LEASESubmission of this instrument for examination or signature by Tenant does not constitute a
reservation of or option for a lease, and this instrument is not effective as a lease or otherwise until its execution and delivery by both Landlord and Tenant.

33.    DEFAULT BY LANDLORDLandlord shall not be in default unless Landlord fails to perform obligations required of Landlord
within a reasonable time, but in no event earlier than (30) days after written notice by Tenant to Landlord and to the holder of any first mortgage or deed of trust covering the Premises whose name
and address shall have heretofore been furnished to Tenant in writing, specifying wherein Landlord has failed to perform such obligations; provided, however, that if the nature of Landlord's
obligations is such that more than thirty (30) days are required for performance, then Landlord shall not be in default if Landlord commences performance within such thirty (30) day period and
thereafter diligently prosecutes the same to completion.

34.    CORPORATE AUTHORITYIf Tenant is a corporation (or a partnership), each individual executing this Lease on behalf of said
corporation (or partnership) represents and warrants that he is duly authorized to execute and deliver this Lease on behalf of said corporation (or partnership) in accordance with the by-laws of said
corporation (or partnership in accordance with the partnership agreement) and that this Lease is binding upon said corporation (or partnership) in accordance with its terms. If Tenant is a
corporation, Tenant shall, within thirty (30) days after execution of this Lease, deliver to Landlord a certified copy of the resolution of the Board of Directors of said corporation
authorizing or ratifying the execution of this Lease.

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36.    LIMITATION OF LIABILITYIn consideration of the benefits accruing hereunder. Tenant and all successors and assigns
covenant and agree that, in the event of any actual or alleged failure, breach or default hereunder by Landlord:



Tenant
agrees that each of the foregoing covenants and agreements shall be applicable to any covenant or agreement either expressly contained in this Lease or imposed by statute or at
common law.

37.    SIGNSNo sign, placard, picture, advertisement, name or notice shall be inscribed, displayed or printed or affixed on or
to any part of the outside of the Premises or any exterior windows of the Premises without the written consent of Landlord first had and obtained and Landlord shall have the right to remove any such
sign, placard, picture, advertisement, name or notice without notice to and at the expense of Tenant. If Tenant is allowed to print or affix or in any way place a sign in, on, or about the Premises,
upon expiration or other sooner termination of this Lease, Tenant at Tenant's sole cost and expense shall both remove such sign and repair all damage in such a manner as to restore all aspects of the
appearance of the Premises to the condition prior to the placement of said sign.

All
approved signs or lettering on outside doors shall be printed, painted, affixed or inscribed at the expense of Tenant by a person approved of by Landlord.

Tenant
shall not place anything or allow anything to be placed near the glass of any window, door partition or wall which may appear unsightly from outside the Premises.

38.    MISCELLANEOUS AND GENERAL PROVISIONS

A.Use of Building Name.Tenant shall not, without the written consent of Landlord, use the name of the building
for any purpose other than as the address of the business conducted by Tenant in the Premises.

B.Choice of Law, Severability.This Lease shall in all respects be governed by and construed in accordance with
the laws of the State of California. If any provision of this Lease shall be invalid, unenforceable or ineffective for any reason whatsoever, all other provisions hereof shall be and remain in full
force and effect.

C.Definition of Terms.The term "Premises" includes the space leased hereby and any improvements now or
hereafter installed therein or attached thereto. The term "Landlord" or any pronoun used in place thereof includes the plural as well as the singular and the successors and assigns

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of Landlord. The term "Tenant" or any pronoun used in place thereof includes the plural as well as the singular and individuals, firms, associations, partnerships and corporations, and their and each
of their respective heirs, executors, administrators, successors and permitted assigns, according to the context hereof, and the provisions of this Lease shall inure to the benefit of and bind such
heirs, executors, administrators, successors, and permitted assigns.

The
term "person" includes the plural as well as the singular and individuals, firms, associations, partnerships and corporations. Words used in any gender include other genders. If
there be more than one Tenant the obligations of Tenant hereunder are joint and several. The paragraph headings of this Lease are for convenience of reference only and shall have no effect upon the
construction or interpretation of any provision hereof.

D.Time of Essence.Time is of the essence of this Lease and of each and all of its provisions.

E.Quitclaim.At the expiration or earlier termination of this Lease, Tenant shall execute, acknowledge and
deliver to Landlord, within ten (10) days after written demand from Landlord to Tenant, any quitclaim deed or other document required by any reputable title company, licensed to operate in the State
of California, to remove the cloud or encumbrance created by this Lease from the real property of which Tenant's Premises are a part.

F.Incorporation of Prior Agreements: Amendments.This instrument along with any exhibits and attachment hereto
constitutes the entire agreement between Landlord and Tenant relative to the Premises and this agreement and the exhibits and attachments may be altered, amended or revoked only by an instrument in
writing signed by both Landlord and Tenant. Landlord and Tenant agree
hereby that all prior or contemporaneous oral agreements between and among themselves and their agents or representatives relative to the leasing of the Premises are merged in or revoked by this
agreement.

G.Recording.Neither Landlord nor Tenant shall record this Lease or a short form memorandum hereof without the
consent of the other.

H.Amendments for Financing.Tenant further agrees to execute any reasonable amendments required by a lender to
enable Landlord to obtain financing, so long as Tenant's rights hereunder are not substantially affected.

I.Additional Paragraphs.Paragraphs 39 through 53 are added hereto and are included as a part of this
lease.

J.Clauses, Plats and Riders.Clauses, plats and riders, if any, signed by Landlord and Tenant and endorsed on
or affixed to this Lease are a part hereof.

K.Diminution of Light, Air or View.Tenant covenants and agrees that no diminution or shutting off of light,
air or view by any structure which may be hereafter erected (whether or not by Landlord) shall in any way affect his Lease, entitle Tenant to any reduction of rent hereunder or result in any liability
of Landlord to Tenant.

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IN
WITNESS WHEREOF, Landlord and Tenant have executed and delivered this Lease as of the day and year last written below.

|LANDLORD:                                |                           | TENANT:                             
|---------------------------------------- | ------------------------- | ------------------------------------
|JOHN ARRILLAGA SURVIVOR'S TRUST          |                           | ABGENIX, INC.
a Delaware corporation
|                                         |                           |                                     
|By                                       |                           |                                     
|                                         |                           |                                     
|                                         | John Arrillaga, Trustee   |                                     
|                                         |                           |                                     
|Date:                                    |                           |                                     
|                                         |                           |                                     
|                                         |                           |                                     
|RICHARD T. PEERY SEPARATE PROPERTY TRUST |                           | Type or Print
Name                  
|                                         |                           |                                     
|By                                       |                           |                                     
|                                         |                           |                                     
|                                         | Richard T. Peery, Trustee |                                     
|Date:                                    |                           |                                     
|                                         |                           |                                     

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Paragraphs 39 through 53 to Lease Agreement Dated January 22, 2002, By and Between the John Arrillaga Survivor's Trust and the Richard T. Peery Separate Property Trust, as Landlord, and
Abgenix, Inc., a Delaware corporation, as Tenant for 50,688± Square Feet of Space Located at 34700 Campus Drive, Fremont, California.

39.    BASIC RENT:Subject to Paragraphs 2A, 2B and 48 below, and in accordance with Paragraph 4A herein, the total aggregate sum
of FOURTEEN MILLION FOUR HUNDRED THOUSAND FOUR HUNDRED SIXTY AND 80/100 DOLLARS ($14,400,460.80), shall be payable as follows:

Upon
Tenant's execution of this Lease, the sum of EIGHTY-THREE THOUSAND SIX HUNDRED THIRTY-FIVE AND 20/100 DOLLARS ($83,635.20) shall be due, representing the Basic Rent for the period
of May 1, 2002 through May 31, 2002. In the event the Lease does not commence on May 1, 2002, said Basic Rent amount prepaid for the month of May 2002 shall be applied to
the amount due as of the Lease Commencement Date and shall be prorated if the Lease does not commence on the first day of a given month, with any excess payment credited to the following month's Basic
Rent due.

On
June 1, 2002, the sum of EIGHTY-THREE THOUSAND SIX HUNDRED THIRTY-FIVE AND 20/100 DOLLARS ($83,635.20) shall be due, and a like sum due on the first day of each month
thereafter, through and including December 1, 2002.

On
January 1, 2003, the sum of EIGHTY-SIX THOUSAND ONE HUNDRED SIXTY-NINE AND 60/100 DOLLARS ($86,169.60) shall be due, and a like sum due on the first day of each month
thereafter, through and including December 1, 2003.

On
January 1, 2004, the sum of EIGHTY-EIGHT THOUSAND SEVEN HUNDRED FOUR AND NO/100 DOLLARS ($88,704.00) shall be due, and a like sum due on the first day of each month thereafter,
through and including December 1, 2004.

On
January 1, 2005, the sum of NINETY-ONE THOUSAND TWO HUNDRED THIRTY-EIGHT AND 40/100 DOLLARS ($91,238.40) shall be due, and a like sum due on the first day of each month
thereafter, through and including December 1, 2005.

On
January 1, 2006, the sum of NINETY-THREE THOUSAND SEVEN HUNDRED SEVENTY-TWO AND 80/100 DOLLARS ($93,772.80) shall be due, and a like sum due on the first day of each month
thereafter, through and including December 1, 2006.

On
January 1, 2007, the sum of NINETY-SIX THOUSAND THREE HUNDRED SEVEN AND 20/100 DOLLARS ($96,307.20) shall be due, and a like sum due on the first day of each month thereafter,
through and including December 2007.

On
January 1, 2008, the sum of NINETY-EIGHT THOUSAND EIGHT HUNDRED FORTY-ONE AND 60/100 DOLLARS ($98,841.60) shall be due, and a like sum due on the first day of each month
thereafter, through and including December 1, 2008.

On
January 1, 2009, the sum of ONE HUNDRED ONE THOUSAND THREE HUNDRED SEVENTY-SIX AND NO/100 DOLLARS ($101,376.00) shall be due, and a like sum due on the first day of each month
thereafter, through and including December 1, 2009.

On
January 1, 2010, the sum of ONE HUNDRED THREE THOUSAND NINE HUNDRED TEN AND 40/100 DOLLARS ($103,910.40) shall be due, and a like sum due on the first day of each month
thereafter, through and including December 1, 2010.

On
January 1, 2011, the sum of ONE HUNDRED SIX THOUSAND FOUR HUNDRED FORTY FOUR AND 80/100 DOLLARS ($106,444.80) shall be due, and a like sum due on the first day of each month
thereafter, through and including December 1, 2011.

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On
January 1, 2012, the sum of ONE HUNDRED EIGHT THOUSAND NINE HUNDRED SEVENTY-NINE AND 20/100 DOLLARS ($108,979.20) shall be due, and a like sum due on the first day of each
month thereafter, through and including December 1, 2012.

On
January 1, 2013, the sum of ONE HUNDRED ELEVEN THOUSAND FIVE HUNDRED THIRTEEN AND 60/100 DOLLARS ($111,513.60) shall be due, and a like sum due on the first day of each month
thereafter, through and including December 1, 2013.

On
January 1, 2014, the sum of ONE HUNDRED FOURTEEN THOUSAND FORTY-EIGHT AND NO/100 DOLLARS ($114,048.00) shall be due, and a like sum due on the first day of each month
thereafter, through and including June 1, 2014; or until the entire aggregate sum of FOURTEEN MILLION FOUR HUNDRED THOUSAND FOUR HUNDRED SIXTY AND 80/100 Dollars ($14,400,460.80) has been paid,
subject to an adjustment as may be required by any provisions providing for abatement of Rent or adjustment of the Term of this Lease.

40.    CONSENT:Whenever the consent or approval of one party to the other is required by the terms of this Lease, such consent
or approval shall not be unreasonably withheld.

41.    ASSESSMENT CREDITS:The demised property herein may be subject to a special assessment levied by the City of Fremont as
part of an Improvement District. As a part of said special assessment proceedings (if any), additional bonds were or may be sold and assessments were or may be levied to provide for construction
contingencies and reserve funds. Interest shall be earned on such funds created for contingencies and on reserve funds which will be credited for the benefit of said assessment district. To the extent
surpluses are created in said district through unused contingency funds, interest earnings or reserve funds, such surpluses shall be deemed the property of Landlord. Notwithstanding that such
surpluses may be credited on assessments otherwise due against the Leased Premises, Tenant shall pay to Landlord, as additional rent if, and at the time of any such credit of surpluses, an amount
equal to all such surpluses so credited. For example: if (i) the property is subject to an annual assessment of $1,000.00, and (ii) a surplus of $200.00 is credited towards the current
year's assessment which reduces the assessment amount shown on the property tax bill from $1,000.00 to $800.00, Tenant shall, upon receipt of notice from Landlord, pay to Landlord said $200.00 credit
as Additional Rent.

42.    ASSIGNMENT AND SUBLETTING (CONTINUED):

A.    In
addition to and notwithstanding anything to the contrary in Paragraph 16 of this Lease, Landlord hereby agrees to consent to Tenant's assigning or subletting
said Lease to: (i) any parent or subsidiary corporation, affiliate, or corporation with which Tenant merges or consolidates, and provided that, with respect to any such assignment, said parent
or subsidiary corporation, affiliate, or said corporation has a net worth equal to or greater than the net worth of Tenant at the time of such assignment, merger, or consolidation; or (ii) any
third party or entity to whom Tenant sells all or substantially all of its assets; provided, that the net worth of the resulting or acquiring corporation has a net worth after the merger,
consolidation or acquisition equal to or greater than the net worth of Tenant at the time of such merger, consolidation or acquisition. No such assignment or subletting will release the Tenant from
its liability and responsibility under this Lease to the extent Tenant continues in existence following such transaction. Notwithstanding the above, Tenant shall be required to (a) give
Landlord written notice prior to such assignment or subletting to any party as described in (i) and (ii) above, and (b) execute Landlord's consent document prepared by Landlord
reflecting the assignment or subletting.

B.    Any
and all sublease agreement(s) between Tenant and any and all subtenant(s) (which agreements must be consented to by Landlord, pursuant to the requirements of this
Lease) shall contain the following language:



20

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Initials:



Initials:Subtenant



Tenant"


43.    HAZARDOUS MATERIALS:Landlord and Tenant agree as follows with respect to the existence or use of "Hazardous Materials"
(as defined herein) on, in, under or about the Premises and real property located beneath said Premises (hereinafter collectively referred to as the "Property"):

As
used herein, the term "Hazardous Materials" shall mean any hazardous or toxic substance, material or waste which is or becomes subject to or regulated by any local governmental authority, the State
of California, or the United States Government. The term "Hazardous Materials" includes, without limitation any material or hazardous substance which is (i) listed under Article 9 or
defined as "hazardous" or "extremely hazardous" pursuant to Article 11 of Title 22 of the California Administrative Code, Division 4, Chapter 30, (ii) listed or
defined as a "hazardous waste" pursuant to the Federal Resource Conservation and Recovery Act, Section 42 U.S.C. Section 6901 et. seq., (iii) listed or defined as a "hazardous
substance" pursuant to the Comprehensive Environmental Response, Compensation and Liability Act, 42 U.S.C. Section 9601 et. seq, (42 U.S.C. Section 9601), (iv) petroleum or
any derivative of petroleum, or (v) asbestos.

Tenant
shall have no obligation to "clean up", reimburse, release, indemnify, or defend Landlord with respect to any Hazardous Materials or wastes which Tenant (prior to and during the Term of the
Lease) or other parties on the Property, as described below, (during the Term of this Lease) did not store, dispose, or transport in, use, or cause to be on the Property or which Tenant, its agents,
employees, contractors, vendors, invitees, visitors or its future subtenants and/or assignees (if any) (during the Term of this Lease), did not store, dispose, or transport in, use or cause to be on
the Property in violation of applicable law.

Tenant
shall be 100 percent liable and responsible for: (i) any and all "investigation and cleanup" of any Hazardous Materials contamination resulting from any Hazardous Materials which Tenant,
its agents, employees, contractors, vendors, invitees visitors or its future subtenants and/or assignees (if any), or other parties on the Property, does store, dispose, or transport in, use or cause
to be on the

21

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Property, and (ii) any claims, including third party claims, resulting from such Hazardous Materials contamination. Tenant shall indemnify Landlord and hold Landlord harmless from any
liabilities, demands, costs, expenses and damages, including, without limitation, attorney fees incurred as a result of any claims resulting from any such Hazardous Materials contamination.

Tenant
also agrees not to use or dispose of any Hazardous Materials on the Property without first obtaining Landlord's written consent; provided, however, that Landlord's consent shall not be required
for normal use of customary household and office supplies, such as cleaners, lubricants, solvents, copier toner, etc. Tenant agrees to complete compliance with governmental regulations regarding the
use or removal or remediation of all Hazardous Materials used, stored, disposed of, transported or caused to be on the Property as stated above, and prior to the termination of said Lease Tenant
agrees to follow the proper closure procedures and will obtain a clearance from the local fire department and/or the appropriate governing agency. If Tenant uses any Hazardous Materials, Tenant also
agrees to install, at Tenant's expense, such Hazardous Materials monitoring devices as Landlord deems reasonably necessary. It is agreed that the Tenant's responsibilities related to Hazardous
Materials will survive the termination date of the Lease and that Landlord may obtain specific performance of Tenant's responsibilities under this Paragraph 43.

Subject
to the terms and conditions of this Lease, Landlord hereby acknowledges its consent to Tenant's storage and use on the Property of those Hazardous Materials listed on Exhibit Cattached
hereto. At Tenant's sole cost and expense, each year upon the anniversary of the Commencement Date of the Lease Term ("Anniversary Date"), Tenant shall hire a qualified environmental consultant,
acceptable to Landlord, to evaluate whether Tenant is in compliance with all applicable Governmental Regulations pertaining to Hazardous Materials. Tenant shall submit to Landlord a report from such
environmental consultant which discusses the environmental consultant's findings within two (2) months of each Anniversary Date. Tenant shall promptly take all steps necessary to correct any and all
problems identified by the environmental consultant and provide Landlord with documentation of all such corrections.

As
evidenced by their initials set forth immediately below, Tenant acknowledges that Landlord has provided Tenant with copies of the environmental reports listed on Exhibit D("Reports"), and Tenant
acknowledges that Tenant and Tenant's experts (if any) have had ample opportunity to review such reports and
that Tenant has satisfied itself as to the environmental conditions of the Property and the suitability of such conditions for Tenant's intended use of the Property. To the best of Landlord's
knowledge as of the date of this Lease, except as noted in said Reports, no additional on site Hazardous Materials contamination exist on the Property; however, Landlord shall have no obligation to
further investigate.

Initial:



Initial:Tenant



Landlord


It
is agreed that the Tenant's responsibilities related to Hazardous Materials will survive the expiration or termination of this Lease and that Landlord may obtain specific performance of Tenant's
responsibilities under this Paragraph 43.

44.    ASSOCIATION DUES:The Premises leased hereunder is part of the Ardenwood Property Owner's Association (the "Association"),
and is subject to Association Dues to fund the cost of the Association's obligations and expenses as authorized under said Agreement. As of the date of this Lease, Tenant's current prorata share of
the Association Dues is currently estimated at $44.52 per month and is subject to adjustment as provided for by said Association. Said Association Dues are payable to Tenant to Landlord as Additional
Rent on a monthly basis throughout the Term of this Lease. Tenant understands that it will not be a direct member of the Association.

45.    AUTHORITY TO EXECUTE:The parties executing this Agreement hereby warrant and represent that they are properly authorized
to execute this Agreement and bind the parties on behalf of whom they execute this agreement and to all of the terms, covenants and conditions of this Agreement as they relate to the respective
parties hereto.

22

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46.    TAXES CONTINUED:Notwithstanding anything within Paragraph 9, it is agreed that if any special assessments for
capital improvements are assessed, and if Landlord has the option to either pay the entire assessment in cash or go to bond, and if Landlord elects to pay the entire assessment in cash in lieu of
going to bond, the entire portion of the assessment assigned to Tenant's Leased Premises will be prorated over the same period that the assessment would have been prorated had the assessment gone to
bond.

47.    SUBORDINATION AND MORTGAGES CONTINUED:Landlord represents to Tenant that the Premises are not presently encumbered by a
deed of trust or other security device in favor of any Lender.

48.    LEASE CONTINGENT UPON LANDLORD OBTAINING TERMINATION AGREEMENT WITH CURRENT TENANT:This Lease is subject to and
conditional upon Landlord obtaining from Matrix Pharmaceutical, Inc. ("Matrix"), the current tenant occupying the Premises leased hereunder, a Termination Agreement related to the Premises
satisfactory to Landlord on or before April 30, 2002. In the event Matrix does not fully vacate and surrender the Premises to Landlord on or before April 30, 2002, the scheduled
Commencement Date herein shall automatically be amended to June 1, 2002. In the event Landlord is unable to obtain said satisfactory Termination Agreement on or before May 31, 2002, this
Lease shall be automatically rescinded.

49.    BROKERS.Landlord and Tenant each represent and warrant that they have not dealt with any real estate brokers, agents, or
finders in connection with the original Term of this Lease, and know of no real estate broker, agent or finder who is entitled to a commission in connection with this Lease ("Lease Commission"),
except Mark Pearson of Cresa Partners, which Lease Commission shall be paid one hundred percent (100%) by Matrix Pharmaceutical, Inc. The parties hereto acknowledge that Landlord will not pay a Lease
Commission to Mark Pearson, Cresa Partners or any other broker related to the original Term of this Lease, or in the event this Lease is extended or the square footage leased hereunder is increased
for any reason whatsoever. Landlord and Tenant each agrees to defend, protect, indemnify and hold the other party harmless from and against all claims for brokerage commissions, finder's fees, and
other compensation made by any other broker, agent, or finder as consequence of Landlord's or Tenant's actions or dealings with such other broker, agent or finder.

50.    CROSS DEFAULT.It is understood that Landlord and Tenant have previously entered into another lease dated July 31,
1996 for premises located at 7601 Dumbarton Circle, Fremont, California (the "Existing Lease"). As a material part of the consideration for the execution of this Lease by Landlord, it is agreed
between Landlord and Tenant that a default under this Lease, or a default under said
Existing Lease may, at the option of Landlord, be considered a default under both leases, in which event Landlord shall be entitled (but in no event required) to apply all rights and remedies of
Landlord under the terms of one lease to both leases including, but not limited to, the right to terminate one or both of said leases by reason of a default under said Existing Lease or hereunder.

51.    OPTION TO EXTEND LEASE FOR ONE (1) YEAR SEVEN (7) MONTHS:Landlord hereby grants to Tenant an Option to Extend this Lease
Agreement for an additional one (1) year seven (7) month period upon the following terms and conditions;

A.    Tenant
shall give Landlord written notice of Tenant's exercise of this Option to Extend not later than twelve (12) months prior to the scheduled Lease Termination Date,
which Termination Date is currently projected to be June 30, 2014, in which event the Lease shall be considered extended for an additional one (1) year and seven (7) months, subject to the
Basic Rental set forth below and with: (i) the Rent to be determined pursuant to Paragraph B below; (ii) the terms and conditions subject to amendment by Landlord (Landlord, in
its sole and absolute discretion, may, but is not required to, incorporate its current Lease provisions that are standard in Landlord's leases as of the date of Tenant's exercise of its Option to
Extend); and (iii) this Paragraph 51 deleted. In the event that Tenant fails to timely exercise Tenant's Option to Extend as set forth herein in writing, Tenant shall have no

23

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further Option to Extend this Lease, and this Lease shall continue in full force and effect for the full remaining term hereof, absent this Paragraph 51.

B.    In
the event Tenant timely exercises Tenant's Option to Extend as set forth herein, Landlord shall, within fifteen (15) days after receipt of Tenant's exercise of option,
advise Tenant of the terms and conditions and Rent required for the Extended Term of the Lease. Tenant shall have five (5) days after receipt from the Landlord of said new terms and conditions and
Rent in which to accept said new Basic Rental, terms and conditions and enter into written documentation confirming same. In the event Tenant fails to execute said written documentation confirming
said new terms and conditions and Rent for the Extended Term of Lease within said five (5) day period, Tenant shall have no further Option to Extend this Lease, and this Lease shall continue in full
force and effect for the full remaining term hereof absent of this Paragraph 51, with Landlord having no further responsibility or obligation to Tenant with respect to Tenant's Option to
Extend.

C.    The
option rights of Tenant under this Paragraph 51, and the Extended Term hereunder, are granted for Tenant's personal benefit and may not be assigned or transferred by
Tenant, either voluntarily or by operation of law, in any manner whatsoever (except to a parent or subsidiary corporation or successor by merger as provided for in Paragraph 42A). In the event that
Landlord consents to a sublease or assignment under Paragraph 51, the option granted herein and any Extended Term hereunder shall be void and of no force and effect, whether or not Tenant shall
have purported to exercise such option prior to such assignment or sublease.

D.    It
is agreed that if Tenant is at any time prior to exercising its Option to Extend in default of this Lease and has failed to cure the default in the time period
allowed, this Paragraph 51 will be null and void and Tenant will have no further rights under this Paragraph 51. It is further agreed that if Tenant has exercised its Option to Extend
and is subsequently in default and fails to cure said default in the time period allowed prior to, or at any time the lease commences on the Extended Term, Landlord may at its sole and absolute
discretion, cancel Tenant's Option to Extend, and this Lease will continue in full force and effect for the full remaining term hereof, absent of this Paragraph 51.

52.    EXISTING TENANT IMPROVEMENTS:It is agreed between the parties hereto that the existing tenant improvements ("Existing
Tenant Improvements") as detailed on Exhibit B-1 attached hereto shall not be removed from the Premises by Landlord prior to the Lease Commencement Date or thereafter during the Lease Term and
that said Existing Tenant Improvements will be available for Tenant's use during the Lease Term. Notwithstanding the above, Tenant shall be one hundred percent (100%) responsible for the maintenance,
repair and replacement (if necessary) of said Existing Tenant Improvements.

53.    TRADE FIXTURES:Notwithstanding anything to the contrary in Lease Paragraphs 5 ("Acceptance and Surrender of
Premises") and 6 ("Alterations and Additions"), Tenant shall be entitled to remove any trade fixtures that are not attached to the Premises. Any trade fixtures that are attached to the Premises shall
become the property of Landlord at the expiration of the Lease, and may not be removed by Tenant without the prior written consent of Landlord. Tenant shall be one hundred percent (100%) responsible
for the maintenance, repair and replacement (if necessary) of all trade fixtures installed in the Premises.

24

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[Floor Plan 1]

EXHIBIT ATO LEASE AGREEMENT DATED JANUARY 22, 2002 BY AND BETWEEN THE JOHN ARRILLAGA SURVIVOR'S TRUST AND THE
RICHARD T. PEERY SEPARATE PROPERTY TRUST, AS LANDLORD, AND ABGENIX, INC., AS TENANT.

25

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[Floor Plan 2]

EXHIBIT BTO LEASE AGREEMENT DATED JANUARY 22, 2002 BY AND BETWEEN THE JOHN ARRILLAGA SURVIVOR'S TRUST AND THE
RICHARD T. PEERY SEPARATE PROPERTY TRUST, AS LANDLORD, AND ABGENIX, INC., AS TENANT.

26

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EXHIBIT B-1    Existing Tenant Improvements Not to Be Removed By Landlord  Prior to Lease Commencement Date or During the Lease Term

Notwithstanding
anything to the contrary in said Lease, Tenant shall be one hundred percent (100%) responsible for the maintenance, repair and replacement (if necessary) of said items noted above.

27

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Exhibit C to Lease Agreement dated January 22, 2002

Abgenix                  Estimated Chemical Inventory for B-6

|    |  |           |  |                            |  |            |  |   |  |   |  |   |  |      |  |     |  |      |  |      |  |      |  | Units
(lbs,
gal,
cu
ft) |  |     |  |   |  |   |  |   |  |   |  |  
|--- |  | --------- |  | -------------------------- |  | ---------- |  | - |  | - |  | - |  | ---- |  | --- |  | ---- |  | ---- |  | ---- |  | ----------------------- |  | --- |  | - |  | - |  | - |  | - |  | -
|
|
|
|TOX |  |           |  | 10% Azide                  |  | 26628-22-8 |  | N |  | P |  | L |  | ACR  |  | 365 |  | 0.1  |  | 0.2  |  | 0.1  |  | G                       |  | PB  |  | A |  | A |  | 3 |  | 1 |  | 3
|FL  |  |           |  | 1-Propanol                 |  | 71-23-B    |  | N |  | P |  | L |  | CAF  |  | 365 |  | 1    |  | 1    |  | 1    |  | G                       |  | GB  |  | A |  | A |  | 1 |  | 3 |  | 0
|FL  |  |           |  | 2 Propanol                 |  | 67-63-0    |  | N |  | P |  | L |  | ACF  |  | 365 |  | 1    |  | 4    |  | 2    |  | G                       |  | PB  |  | A |  | A |  | 2 |  | 3 |  | 0
|IRR |  | Bleach    |  | 5% Sodium Hydrochlorite    |  | 7681-52-9  |  | N |  | P |  | L |  | C    |  | 365 |  | 1    |  | 2    |  | 1    |  | G                       |  | PB  |  | A |  | A |  | 2 |  | 0 |  | 1
|COR |  |           |  | 5% Sodium Hydroxide        |  | 1310-73-2  |  | N |  | P |  | L |  | A    |  | 365 |  | 0.2  |  | 0.2  |  | 0.2  |  | G                       |  | PB  |  | A |  | A |  | 3 |  | 0 |  | 1
|COR |  | LancerAid |  | Acetic Acid                |  | 631-61-8   |  | N |  | M |  | L |  | C    |  | 365 |  | 25   |  | 50   |  | 40   |  | G                       |  | CB  |  | A |  | A |  | t |  | 1 |  | 0
|COR |  |           |  | Acetic Acid                |  | 64-19-7    |  | N |  | P |  | L |  | AR   |  | 365 |  | 0.2  |  | 1    |  | 0.5  |  | G                       |  | GB  |  | A |  | A |  | 3 |  | 2 |  | 0
|IRR |  |           |  | Acetic Acid Glacial        |  | 64-19-7    |  | N |  | P |  | L |  | CA   |  | 365 |  | 0.2  |  | 0.2  |  | 0.2  |  | G                       |  | GB  |  | A |  | A |  | 2 |  | 2 |  | 1
|IRR |  |           |  | Acetic Acid Glacial        |  | 64-19-7    |  | N |  | P |  | L |  | ACFR |  | 365 |  | 0.3  |  | 0.3  |  | 0.3  |  | G                       |  | GB  |  | A |  | A |  | 2 |  | 2 |  | 1
|FL  |  |           |  | Acetone                    |  | 67-64-1    |  | N |  | P |  | L |  | A/F  |  | 365 |  | 1    |  | 3    |  | 2    |  | G                       |  | GB  |  | A |  | A |  | 2 |  | 3 |  | 0
|FL  |  |           |  | Acetone?                   |  | 75-05-8    |  | N |  | P |  | L |  | ACF  |  | 365 |  | 1    |  | 5    |  | 2.5  |  | G                       |  | GB  |  | A |  | A |  | 3 |  | 3 |  | 0
|NFG |  |           |  | Air Compressed             |  | 25635-88-5 |  | N |  | P |  | G |  | P    |  | 365 |  | 250  |  | 5000 |  | 5000 |  | CF                      |  | CY  |  | G |  | A |  | 0 |  | 0 |  | 0
|NFG |  | Air       |  | Air, Compressed            |  | 25635-88-5 |  | N |  | P |  | G |  | P    |  | 365 |  | 233  |  | 466  |  | 466  |  | cu ft                   |  | CYL |  | G |  | A |  | 0 |  | 0 |  | 0
|OHH |  |           |  | Aluminum Potassium Sulfate |  | 7784-24-9  |  | N |  | P |  | S |  | C    |  | 365 |  | 0.25 |  | 0.5  |  | 0.25 |  | P                       |  | PB  |  | A |  | A |  | 1 |  | 0 |  | 0
|OHH |  |           |  | Ammonium Bicarbonate       |  | 1066-33-7  |  | N |  | P |  | S |  | C    |  | 365 |  | 0.5  |  | 1.00 |  | 0.50 |  | P                       |  | PB  |  | A |  | A |  | 1 |  | 0 |  | 0
|IRR |  |           |  | Ammonium Chloride          |  | 12125-02-9 |  | N |  | P |  | S |  | A    |  | 365 |  | 0.1  |  | 0.1  |  | 0.1  |  | P                       |  | PB  |  | A |  | A |  | 2 |  | 0 |  | 0
|COR |  |           |  | Ammonium Hydroxide         |  | 1336-21-6  |  | N |  | P |  | L |  | CIA  |  | 365 |  | 0.25 |  | 1    |  | 0.5  |  | G                       |  | GB  |  | A |  | A |  | 3 |  | 1 |  | 0
|OX  |  |           |  | Ammonium Persulfate        |  | 7727-54-9  |  | N |  | P |  | S |  | AR   |  | 365 |  | 0.1  |  | 0.25 |  | 0.1  |  | P                       |  | GB  |  | A |  | A |  | 2 |  | 0 |  | 1
|IRR |  |           |  | Ammonium Sulfate           |  | 7783-20-2  |  | N |  | P |  | S |  | C    |  | 365 |  | 0.25 |  | 1    |  | 1    |  | G                       |  | PB  |  | A |  | A |  | 2 |  | 0 |  | 0
|IRR |  |           |  | Ammonium Chloride          |  | 12125-02-9 |  | N |  | P |  | S |  | C    |  | 365 |  | 0.1  |  | 0.2  |  | 0.1  |  | P                       |  | PB  |  | A |  | A |  | 2 |  | 0 |  | 0
|MFG |  |           |  | Argon                      |  | 7440-37-1  |  | N |  | P |  | G |  | P    |  | 365 |  | 100  |  | 100  |  | 100  |  | CF                      |  | CY  |  | G |  | A |  | 0 |  | 0 |  | 0
|DHH |  |           |  | Aspartic Acid              |  | 617-45-8   |  | N |  | P |  | S |  | C    |  | 365 |  | 0.2  |  | 0.4  |  | 0.2  |  | P                       |  | PB  |  | A |  | A |  | 1 |  | 0 |  | 0
|IRR |  |           |  | Butyric Acid               |  | 107-92-6   |  | N |  | P |  | L |  | AF   |  | 365 |  | 0.1  |  | 0.1  |  | 0.1  |  | G                       |  | PB  |  | A |  | A |  | 2 |  | 2 |  | 0
|FS  |  |           |  | Carbon Decolorizing        |  | 7440-44-0  |  | N |  | P |  | S |  | CF   |  | 365 |  | 0.2  |  | 0.5  |  | 0.2  |  | P                       |  | GB  |  | A |  | A |  | 3 |  | 3 |  | 0
|CRY |  |           |  | Carbon dioxide, liquified  |  | 124-38-9   |  | N |  | P |  | L |  | PA   |  | 365 |  | 40   |  | 120  |  | 120  |  | GAL                     |  | DEW |  | G |  | L |  | 3 |  | 0 |  | 0
|TOX |  |           |  | Chloroform                 |  | 67-66-3    |  | N |  | P |  | L |  | A/C  |  | 365 |  | 0.2  |  | 0.20 |  | 0.20 |  | G                       |  | GB  |  | A |  | A |  | 3 |  | 0 |  | 0
|COR |  | Chronenge |  | Chromium Trioxide          |  | 1333-82-0  |  | N |  | P |  | L |  | ACR  |  | 365 |  | 0.1  |  | 0.2  |  | 0.1  |  | G                       |  | GB  |  | A |  | A |  | 3 |  | 0 |  | 2
|IRR |  |           |  | Citric Acid                |  | 5949-29-1  |  | N |  | P |  | S |  | C    |  | 365 |  | 0.25 |  | 1    |  | 1    |  | P                       |  | GB  |  | A |  | A |  | 2 |  | 1 |  | 0

28

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Exhibit C to Lease Agreement dated January 22, 2002

Abgenix                  Estimated Chemical Inventory for B-6

|         |  |                 |  |                                   |  |                  |  |   |  |   |  |     |  |     |  |      |  |      |  |      |  |      |  | Units
(lbs,
gal,
cu ft) |  |    |  |   |  |   |  | NFPA
|-------- |  | --------------- |  | --------------------------------- |  | ---------------- |  | - |  | - |  | --- |  | --- |  | ---- |  | ---- |  | ---- |  | ---- |  | ----------------------- |  | -- |  | - |  | - |  | ----
|
|
|OHH      |  |                 |  | D(+)- Glucose                     |  | 50-99-7          |  | N |  | P |  | S   |  | C   |  | 365  |  | 500  |  | 500  |  | 300  |  | P                       |  | FB |  | A |  | A |  | 0   
|CL       |  | Diesel          |  | Diesel #2                         |  | 68476-34-6       |  | N |  | M |  | L   |  | FAC |  | 365  |  | 400  |  | 400  |  | 400  |  | G                       |  | AT |  | A |  | A |  | 0   
|FL       |  | Starting Fluid  |  | Diethyl ether                     |  | 60-29-7          |  | N |  | M |  | L   |  | ACF |  | 365  |  | 0.5  |  | 0.5  |  | 0.5  |  | CUFT                    |  | CN |  | G |  | A |  | 2   
|OHH      |  |                 |  | Diethylenetrismin-pentacetic acid |  | 67-43-6          |  | N |  | M |  | S   |  | C   |  | 365  |  | 0.1  |  | 0.1  |  | 0.1  |  | P                       |  | GB |  | A |  | A |  | 1   
|FL       |  | Acetone         |  | Dimethyl Ketone                   |  | 67-64-1          |  | N |  | P |  | L   |  | FA  |  | 365  |  | 1    |  | 2    |  | 2    |  | G                       |  | PB |  | A |  | A |  | 1   
|OHH      |  |                 |  | Dimethyl Polysifoxane             |  | 9016-00-6        |  | N |  | P |  | L   |  | C   |  | 365  |  | 0.5  |  | 0.5  |  | 0.5  |  | G                       |  | GB |  | A |  | A |  | 1   
|OHH      |  |                 |  | Dimethyl Sulfox                   |  | 67-68-5          |  | N |  | P |  | L   |  | CA  |  | 365  |  | 0.1  |  | 0.20 |  | 0.1  |  | L                       |  | GB |  | A |  | A |  | 1   
|OHH      |  |                 |  | Dimethyl Sulphoxide               |  | 67-68-5          |  | N |  | P |  | L   |  | C   |  | 365  |  | 0.1  |  | 0.1  |  | 0.1  |  | G                       |  | GB |  | A |  | A |  | 1   
|OHH      |  |                 |  | Disodium Pyrophosphate            |  | 7722-88-5        |  | N |  | P |  | S   |  | C   |  | 365  |  | 0.25 |  | 0.5  |  | 0.25 |  | P                       |  | PB |  | A |  | A |  | 1   
|OHH      |  |                 |  | DMSO                              |  | 67-68-5          |  | N |  | P |  | L   |  | C   |  | 365  |  | 0.1  |  | 0.1  |  | 0.1  |  | G                       |  | GB |  | A |  | A |  | 1   
|FL       |  | Alcohol         |  | Ethanol                           |  | 64-17-5          |  | N |  | P |  | L   |  | FAC |  | 365  |  | 1    |  | 2    |  | 1    |  | G                       |  | PB |  | A |  | A |  | 0   
|FL       |  |                 |  | Ethanol 70%                       |  | 64-17-5          |  | N |  | P |  | L   |  | ACF |  | 365  |  | 1    |  | 6    |  | 6    |  | G                       |  | PB |  | A |  | A |  | 0   
|FL       |  | Gills III       |  | Ethanol, Aluminus Sulfate         |  | 64-17-5          |  | N |  | M |  | L   |  | FC  |  | 365  |  | 0.25 |  | 0.25 |  | 0.25 |  | G                       |  | PB |  | A |  | A |  | 1   
|FL       |  | Eosiny Stain    |  | Ethanol, Aluminus Sulfate         |  | 64-17-5
631-61-8 |  | N |  | M |  | L   |  | FC  |  | 365  |  | 0.25 |  | 0.25 |  | 0.25 |  | G                       |  | PB |  | A |  | A |  | 0   
|FL       |  | Reagent Alcohol |  | Ethanol, Methanol                 |  | 64-17-5
57-56-1  |  | N |  | M |  | L   |  | CAF |  | 365  |  | 0.25 |  | 4    |  | 4    |  | G                       |  | GB |  | A |  | A |  | 0   
|FL       |  | Reagent Alcohol |  | Ethanol, methanol, isopropanol    |  | 64-17-5          |  | N |  | M |  | L   |  | F   |  | 365  |  | 1    |  | 10   |  | 6    |  | G                       |  | PB |  | A |  | A |  | 0   
|FL       |  | REAGENT ALOCHOL |  | ETHANOL/METHONAL                  |  | 64-17-5          |  | N |  | P |  | L   |  | CAF |  | 365  |  | 1    |  | 3    |  | 2    |  | G                       |  | PB |  | A |  | A |  | 0   
|OHH      |  |                 |  | Ethanolamine                      |  | 2002-24-6        |  | N |  | P |  | S   |  | AR  |  | 365  |  | 0.25 |  | 0.25 |  | 0.25 |  | P                       |  | PB |  | A |  | A |  | 1   
|COR/FLAM |  | Ethanolamine    |  | 141-43-5                          |  | N                |  | P |  | L |  | CFA |  | 365 |  | 0.26 |  | 1    |  | 0.5  |  | G    |  | GB                      |  | A  |  | A |  | 3 |  | 2   
|OHH      |  |                 |  | Ethylene Bromine                  |  | 1239-49-8        |  | N |  | P |  | L   |  | C   |  | 365  |  | 10   |  | 0.10 |  | 10   |  | G                       |  | GB |  | A |  | A |  | 1   
|FL       |  |                 |  | Ethyl Alcohol                     |  | 64-17-5          |  | N |  | P |  | L   |  | ACF |  | 365  |  | 0.25 |  | 5    |  | 2.5  |  | G                       |  | GB |  | A |  | A |  | 2   
|OHH      |  |                 |  | Ethylenediamineletracelic Acid    |  | 60-00-4          |  | N |  | P |  | S   |  | C   |  | 365  |  | 0.1  |  | 0.25 |  | 0.1  |  | P                       |  | PB |  | A |  | A |  | 1   
|OHH      |  |                 |  | Ferrous Sulfate                   |  | 7720-78-7        |  | N |  | P |  | S   |  | C   |  | 365  |  | 0.1  |  | 0.25 |  | 0.1  |  | P                       |  | PB |  | A |  | A |  | 1   
|IOX      |  |                 |  | Formaldehyde                      |  | 50-08-0          |  | Y |  | P |  | L   |  | ACF |  | 365  |  | 0.25 |  | 0.5  |  | 0.25 |  | G                       |  | GB |  | A |  | A |  | 3   
|CL       |  |                 |  | Formatin 4%                       |  | 50-00-01         |  | N |  | P |  | L   |  | ACF |  | 365  |  | 0.1  |  | 0.1  |  | 0.1  |  | G                       |  | PB |  | A |  | A |  | 3   
|COR      |  |                 |  | Formic Acid                       |  | 64-18-6          |  | N |  | P |  | L   |  | AF  |  | 365  |  | 0.2  |  | 1    |  | 0.5  |  | G                       |  | PB |  | A |  | A |  | 3   
|COR      |  |                 |  | Formic Acid 1% IPR                |  | 64-18-6          |  | N |  | M |  | L   |  | ACF |  | 365  |  | 0.1  |  | 0.5  |  | 0.25 |  | G                       |  | GB |  | A |  | A |  | 3   

29

---

Exhibit C to Lease Agreement dated January 22, 2002

Abgenix                  Estimated Chemical Inventory for B-6

|    |  |                       |  |                           |  |            |  |   |  |   |  |     |  |     |  |     |  |      |  |      |  |      |  |      |  |     |  |   |  |   |  | NFPA
|--- |  | --------------------- |  | ------------------------- |  | ---------- |  | - |  | - |  | --- |  | --- |  | --- |  | ---- |  | ---- |  | ---- |  | ---- |  | --- |  | - |  | - |  | ----
|
|
|OHH |  |                       |  | Glutamic Acid             |  | 56-85-0    |  | N |  | P |  | S   |  | C   |  | 365 |  | 0.5  |  | 0.1  |  | 0.1  |  | P    |  | PB  |  | A |  | A |  | 0   
|OHH |  | Glycerol              |  | Glycerin                  |  | 56-81-5    |  | N |  | P |  | L   |  | C   |  | 365 |  | 0.2  |  | 0.25 |  | 0.2  |  | G    |  | PB  |  | A |  | A |  | 1   
|OHH |  |                       |  | Glycerin                  |  | 56-81-5    |  | N |  | P |  | L   |  | C   |  | 365 |  | 0.1  |  | 0.20 |  | 0.1  |  | G    |  | GB  |  | A |  | A |  | 1   
|OHH |  |                       |  | Glycerol                  |  | 56-81-5    |  | N |  | P |  | L   |  | C   |  | 365 |  | 1    |  | 3    |  | 1.5  |  | G    |  | GB  |  | A |  | A |  | 1   
|OHH |  |                       |  | Glycine                   |  | 58-40-6    |  | N |  | P |  | S   |  | C   |  | 365 |  | 0.1  |  | 0.25 |  | 0.25 |  | P    |  | PB  |  | A |  | A |  | 0   
|RAD |  | Tritium               |  | H-3                       |  |            |  | N |  | P |  | S/L |  | C   |  | 365 |  | 1    |  | 10   |  | 2    |  | mCi  |  | GB  |  | A |  | A |  |     
|NFG |  |                       |  | Helium Compressed         |  | 7440-59-7  |  | N |  | P |  | G   |  | P   |  | 365 |  | 304  |  | 1250 |  | 1250 |  | CF   |  | CY  |  | G |  | A |  | 0   
|NFG |  |                       |  | Helium Compressed         |  | 7440-59-7  |  | N |  | P |  | G   |  | C,P |  | 365 |  | 291  |  | 291  |  | 291  |  | CF   |  | CYL |  | G |  | A |  | 0   
|NFG |  |                       |  | Helium, Compressed        |  | 7440-59-7  |  | N |  | P |  | G   |  | P   |  | 365 |  | 223  |  | 223  |  | 223  |  | cuft |  | CY  |  | G |  | A |  | 0   
|COR |  |                       |  | Hydrochloric Acid         |  | 7647-01-0  |  | N |  | P |  | L   |  | A   |  | 365 |  | 0.25 |  | 3    |  | 1.5  |  | G    |  | PB  |  | A |  | A |  | 3   
|OX  |  |                       |  | Hydrogen Peroxide         |  | 7722841    |  | N |  | P |  | L   |  | ACR |  | 365 |  | 0.1  |  | 0.2  |  | 0.1  |  | G    |  | PB  |  | A |  | A |  | 3   
|OX  |  |                       |  | Hydrogen Peroxide 30%     |  | 7722-B4-1  |  | N |  | P |  | L   |  | AC  |  | 365 |  | 0.1  |  | 0.2  |  | 0.1  |  | G    |  | PB  |  | A |  | A |  | 3   
|OX  |  |                       |  | Hydrogen Peroxide 30%     |  | 7722-B4-1  |  | N |  | P |  | L   |  | A   |  | 365 |  | 0.1  |  | 0.1  |  | 0.1  |  | G    |  | PB  |  | A |  | A |  | 3   
|COR |  |                       |  | Hydroxamine Hydrochloride |  | 5470-11-1  |  | N |  | P |  | L   |  | ACR |  | 365 |  | 0.1  |  | 0.2  |  | 0.1  |  | P    |  | GB  |  | A |  | A |  | 3   
|RAD |  |                       |  | I-125                     |  |            |  | N |  | P |  | S/L |  | C   |  | 365 |  | 1    |  | 10   |  | 2    |  | mCi  |  | GB  |  | A |  | A |  |     
|FL  |  | 2-Propanol            |  | Isopropanol               |  | E7-63-0    |  | N |  | P |  | L   |  | CAF |  | 365 |  | 1    |  | 15   |  | 5    |  | G    |  | GB  |  | A |  | A |  | 2   
|IRR |  |                       |  | Karamycin                 |  | 25369-94-0 |  | N |  | P |  | S   |  | C   |  | 365 |  | 0.1  |  | 0.1  |  | 0.1  |  | P    |  | PB  |  | A |  | A |  | 2   
|CL  |  | Charcoal Starter      |  | Kerosene                  |  | 8008-20-6  |  | N |  | M |  | L   |  | F   |  | 365 |  | 0.1  |  | 0.2  |  | 0.1  |  | G    |  | PB  |  | A |  | A |  | 1   
|OHH |  |                       |  | Lauryl Sulfate            |  | 151-21-3   |  | N |  | P |  | S   |  | C   |  | 365 |  | 0.25 |  | 0.5  |  | 0.25 |  | P    |  | PB  |  | A |  | A |  | 1   
|CRY |  |                       |  | Liquid Nitrogen           |  | 7727-37-9  |  | N |  | P |  | L   |  | PA  |  | 365 |  | 40   |  | 160  |  | 120  |  | GAL  |  | DEW |  | G |  | L |  | 3   
|CRY |  |                       |  | Liquid Nitrogen           |  | 7727-37-9  |  | N |  | P |  | L   |  | PA  |  | 365 |  | 40   |  | 300  |  | 240  |  | G    |  | DEW |  | G |  | L |  | 3   
|OHH |  |                       |  | L-Protine                 |  | 147-85-3   |  | N |  | P |  | S   |  | C   |  | 365 |  | 0.1  |  | 0.1  |  | 0.1  |  | P    |  | PB  |  | A |  | A |  | 1   
|FL  |  | Reagent grade alcohol |  | Methanol                  |  | 64-17-5    |  | N |  | P |  | L   |  | F   |  | 365 |  | 1    |  | 6    |  | 4    |  | G    |  | PB  |  | A |  | A |  | 0   
|FL  |  |                       |  | Methanol                  |  | 67-58-1    |  | N |  | P |  | L   |  | A/C |  | 365 |  | 1    |  | 8    |  | 1    |  | G    |  | GB  |  | A |  | A |  | 1   
|CL  |  | 10% buffered          |  | methanol, formaldehyde    |  | 50-00-0    |  | N |  | M |  | L   |  | FAC |  | 365 |  | 1    |  | 1    |  | 2    |  | G    |  | PB  |  | A |  | A |  | 2   
|FL  |  | Methanol              |  | Methyl Alcohol            |  | 67-56-1    |  | N |  | P |  | L   |  | FA  |  | 365 |  | 1    |  | 2    |  | 1    |  | G    |  | GB  |  | A |  | A |  | 1   
|FL  |  | Paint                 |  | Methyl ethyl ketone       |  | 78-86-4    |  | N |  | M |  | L   |  | F   |  | 365 |  | 0.1  |  | 0.1  |  | 0.1  |  | G    |  | CN  |  | G |  | A |  | 1   
|TOX |  |                       |  | Methylene Chloride        |  | 75-09-2    |  | N |  | P |  | L   |  | A/C |  | 365 |  | 0.25 |  | 0.5  |  | 0.25 |  | G    |  | GB  |  | A |  | A |  | 3   
|OHH |  |                       |  | Mineral Oil               |  | 8012-95-1  |  | N |  | P |  | L   |  | C   |  | 365 |  | 0.25 |  | 0.20 |  | 0.25 |  | G    |  | PB  |  | A |  | A |  | 0   

30

---

Exhibit C to Lease Agreement dated January 22, 2002

Abgenix                  Estimated Chemical Inventory for B-6

|        |  |                               |  |                                      |  |            |  |   |  |   |  |     |  |     |  |     |  |      |  |      |  |      |  |      |  |     |  |   |  |   |  | NFPA
|------- |  | ----------------------------- |  | ------------------------------------ |  | ---------- |  | - |  | - |  | --- |  | --- |  | --- |  | ---- |  | ---- |  | ---- |  | ---- |  | --- |  | - |  | - |  | ----
|
|
|IRR     |  |                               |  | N,N- Dimethyl Formamide              |  | 6B-12-2    |  | N |  | P |  | S   |  | AF  |  | 365 |  | 1    |  | 1    |  | 1    |  | P    |  | PB  |  | A |  | A |  | 2   
|CL      |  |                               |  | N,N-Dimethyl Formamide               |  | 6B-12-2    |  | N |  | P |  | L   |  | CAF |  | 365 |  | 0.2  |  | 0.25 |  | 0.2  |  | G    |  | GB  |  | A |  | A |  | 1   
|OX      |  |                               |  | Nitric Acid                          |  | 7697-37-2  |  | N |  | P |  | L   |  | ACR |  | 365 |  | 0.1  |  | 0.1  |  | 0.1  |  | G    |  | GB  |  | A |  | A |  | 3   
|CRG     |  |                               |  | Nitrogen                             |  | 7727-37-9  |  | N |  | P |  | G   |  | A   |  | 365 |  | 50   |  | 400  |  | 350  |  | cuft |  | DEW |  | G |  | L |  | 3   
|NFG     |  |                               |  | Nitrogen Compressed                  |  | 7727-37-9  |  | N |  | P |  | G   |  | P   |  | 365 |  | 291  |  | 291  |  | 600  |  | CF   |  | CY  |  | G |  | A |  | 0   
|CRG     |  |                               |  | Nitrogen Compressed                  |  | 7727-37-9  |  | N |  | P |  | G   |  | A   |  | 365 |  | 304  |  | 304  |  | 304  |  | cuft |  | CY  |  | G |  | L |  | 3   
|NFG     |  |                               |  | Nitrogen Compressed                  |  | 7727-37-9  |  | N |  | P |  | G   |  | A P |  | 365 |  | 304  |  | 304  |  | 304  |  | CF   |  | CYL |  | G |  | A |  | 0   
|IRR     |  | Hapes                         |  | N-LZ Hydroxyethy Piperazine N- Ether |  | 17365-45-9 |  | N |  | P |  | S   |  | C   |  | 365 |  | 0.1  |  | 0.25 |  | 0.1  |  | P    |  | PB  |  | A |  | A |  | 1   
|OXY     |  |                               |  | Oxygen 50%/CO2 50%                   |  | 7782-44-7  |  | N |  | M |  | G   |  | PF  |  | 365 |  | 117  |  | 117  |  | 117  |  | CF   |  | CY  |  | G |  | A |  | 1   
|OXY     |  |                               |  | Oxygen 50%/Nitrogen 50%              |  | 7782-44-7  |  | N |  | M |  | G   |  | PF  |  | 365 |  | 250  |  | 1250 |  | 1250 |  | CF   |  | CY  |  | G |  | A |  | 1   
|RAD     |  |                               |  | P-32                                 |  |            |  | N |  | P |  | S/L |  | C   |  | 365 |  | 1    |  | 10   |  | 2    |  | mCi  |  | GB  |  | A |  | A |  |     
|TOX     |  |                               |  | Paraformaldehyde 16%                 |  | 3052S-89-4 |  | Y |  | M |  | L   |  | AC  |  | 365 |  | 0.05 |  | 0.1  |  | 0.1  |  | G    |  | GB  |  | A |  | A |  | 3   
|IRR     |  |                               |  | Perchloric Acid                      |  | 7601-90-3  |  | N |  | P |  | L   |  | CA  |  | 365 |  | 0.1  |  | 0.2  |  | 0.2  |  | G    |  | GB  |  | A |  | A |  | 2   
|TOX     |  |                               |  | Phenol                               |  | 108-95-2   |  | Y |  | P |  | L   |  | ACF |  | 365 |  | 0.25 |  | 0.25 |  | 0.25 |  | G    |  | GB  |  | A |  | A |  | 4   
|TOX     |  |                               |  | Phenol                               |  | 108-95-2   |  | N |  | P |  | L   |  | A   |  | 365 |  | 0.1  |  | 0.1  |  | 0.1  |  | G    |  | GB  |  | A |  | A |  | 4   
|TOX     |  |                               |  | Phenol Chloroform                    |  | 67-66-3    |  | Y |  | P |  | L   |  | CA  |  | 365 |  | 0.1  |  | 0.1  |  | 0.1  |  | G    |  | GB  |  | A |  | A |  | 3   
|CCH     |  |                               |  | Phenylmethy Sulfuryl                 |  | 329-98-6   |  | N |  | P |  | S   |  | A/C |  | 365 |  | 0.25 |  | 0.25 |  | 0.25 |  | P    |  | GB  |  | A |  | A |  | 3   
|COR/TOX |  | Phenylmethylsulfuryl Fluoride |  | 329-98-6                             |  | N          |  | P |  | S |  | A   |  | 365 |  | 0.5 |  | 5.00 |  | 2.5  |  | P    |  | GB   |  | A   |  | A |  | 3 |  | 0   
|COR     |  |                               |  | Phosphoric Acid                      |  | 766-38-2   |  | N |  | P |  | L   |  | A   |  | 365 |  | 0.2  |  | 0.25 |  | 0.2  |  | G    |  | GB  |  | A |  | A |  | 3   
|COR     |  |                               |  | Phosphoric Acid                      |  | 766-38-2   |  | N |  | P |  | L   |  | A   |  | 365 |  | 0.1  |  | 0.5  |  | 0.25 |  | G    |  | GB  |  | A |  | A |  | 3   
|IRR     |  |                               |  | Polyoxyethylene Sorbitan             |  | 9005-64-5  |  | N |  | M |  | L   |  | C   |  | 365 |  | 0.1  |  | 0.20 |  | 0.1  |  | G    |  | PB  |  | A |  | A |  | 1   
|OHH     |  |                               |  | Potassium Chloride                   |  | 7447-40-7  |  | N |  | P |  | L   |  | C   |  | 365 |  | 0.2  |  | 0.25 |  | 0.2  |  | G    |  | GB  |  | A |  | A |  | 1   
|COR     |  |                               |  | Potassium Hydroxide                  |  | 1310-58-3  |  | N |  | P |  | L   |  | ACR |  | 365 |  | 0.25 |  | 0.5  |  | 0.25 |  | G    |  | PB  |  | A |  | A |  | 3   
|IRR     |  |                               |  | Pyruvic Acid                         |  | 127-17-3   |  | N |  | 0 |  | S   |  | C   |  | 365 |  | 0.25 |  | 0.5  |  | 0.25 |  | P    |  | PB  |  | A |  | A |  | 2   
|FL      |  |                               |  | Rossville Alcohol 200 Proof          |  | 64-17-5    |  | N |  | P |  | L   |  | CAF |  | 365 |  | 1    |  | 10   |  | 0    |  | G    |  | GB  |  | A |  | A |  | 1   
|OHH     |  | Salt                          |  | Salt                                 |  | 7647-14-5  |  | N |  | P |  | S   |  | C   |  | 365 |  | 23   |  | 500  |  | 500  |  | P    |  | Bag |  | A |  | A |  | 1   
|OX      |  |                               |  | Silver Nitrate                       |  | 7761-88-98 |  | N |  | P |  | L   |  | A R |  | 365 |  | 0.1  |  | 0.10 |  | 0.1  |  | P    |  | PB  |  | A |  | A |  | 4   
|OYR     |  | Fixer                         |  | Silver Nitrate (0.1%)                |  | 7761-88-8  |  | N |  | M |  | L   |  | C   |  | 365 |  | 10   |  | 20   |  | 10   |  | G    |  | PB  |  | A |  | A |  | 1   
|OHH     |  |                               |  | Sodium Heparin                       |  | 9D41-D8-1  |  | N |  | P |  | S   |  | A   |  | 365 |  | 0.1  |  | 0.10 |  | 0.10 |  | P    |  | GB  |  | A |  | A |  | 1   

31

---

Exhibit C to Lease Agreement dated January 22, 2002

Abgenix                  Estimated Chemical Inventory for B-6

|     |  |                      |  |                                     |  |                     |  |   |  |   |  |   |  |     |  |     |  |      |  |      |  |      |  |      |  |     |  |   |  |   |  | NFPA
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|TOX  |  |                      |  | Sodium Azide                        |  | 26528-22-0          |  | Y |  | P |  | S |  | ACR |  | 365 |  | 0.25 |  | 0.5  |  | 0.25 |  | P    |  | GB  |  | A |  | A |  | 3   
|DVR  |  | Developer            |  | Sodium Bissulfate (0.5%)            |  | 7601-38-1           |  | N |  | M |  | L |  | C   |  | 365 |  | 10   |  | 20   |  | 10   |  | G    |  | PB  |  | A |  | A |  | 1   
|OHH  |  |                      |  | Sodium Chloride                     |  | 7647-14-5           |  | N |  | P |  | S |  | C   |  | 365 |  | 0.5  |  | 0.1  |  | 0.5  |  | P    |  | PB  |  | A |  | A |  | 1   
|OHH  |  | TRYPAN BLUE SOLUTION |  | SODIUM CHLORIDE                     |  | 75-57-1             |  | N |  | M |  | L |  | C   |  | 365 |  | 0.1  |  | 0.2  |  | 0.1  |  | G    |  | PB  |  | A |  | A |  | 1   
|COR  |  | Luminey              |  | Sodium Chloride Sodium Phosphate    |  | 7647-14-5
7722-88-5 |  | N |  | M |  | L |  | C   |  | 365 |  | 5    |  | 10   |  | 5    |  | G    |  | GB  |  | A |  | A |  | 1   
|COR  |  |                      |  | Sodium Hydroxide                    |  | 1310-73-2           |  | N |  | P |  | L |  | A/C |  | 365 |  | 2.5  |  | 20   |  | 10   |  | G    |  | PB  |  | A |  | A |  | 3   
|IRR  |  | Bleach               |  | Sodium Hypochloride                 |  | 7681-52-9           |  | N |  | P |  | L |  | A   |  | 365 |  | 1    |  | 20   |  | 10   |  | G    |  | PR  |  | A |  | A |  | 2   
|IRR  |  |                      |  | Sodium Orthorariadate               |  | 13721-39-6          |  | N |  | P |  | S |  | A   |  | 365 |  | 0.25 |  | 0.50 |  | 0.25 |  | P    |  | PB  |  | A |  | A |  | 2   
|OX   |  |                      |  | Sodium Perchlorate                  |  | 1791-07-3           |  | N |  | P |  | S |  | AR  |  | 365 |  | 0.1  |  | 0.25 |  | 0.1  |  | P    |  | PB  |  | A |  | A |  | 2   
|HTOX |  |                      |  | Sodium Selenite                     |  | 10102-18-8          |  | Y |  | P |  | S |  | C/A |  | 365 |  | 0.1  |  | 0.1  |  | 0.1  |  | P    |  | BOX |  | A |  | A |  | 3   
|CL   |  | WD 40                |  | Standard Solvent                    |  | 8052-41-3           |  | N |  | M |  | L |  | C   |  | 365 |  | 0.5  |  | 0.5  |  | 0.5  |  | CUFT |  | CA  |  | G |  | A |  | 1   
|COR  |  |                      |  | Sulfuric Acid                       |  | 7684-93-9           |  | Y |  | P |  | L |  | AR  |  | 365 |  | 0.2  |  | 0.5  |  | 0.2  |  | G    |  | GB  |  | A |  | A |  | 3   
|IRR  |  |                      |  | Tetraethylammonium Chloride Hydrate |  | 56-34-8             |  | N |  | P |  | S |  | C   |  | 365 |  | 0.25 |  | 0.5  |  | 0.25 |  | P    |  | GB  |  | A |  | A |  | 2   
|FL   |  | Permount             |  | Toluene, piocolyte                  |  | 108-08-33           |  | N |  | M |  | L |  | AF  |  | 365 |  | 0.1  |  | 0.2  |  | 0.1  |  | G    |  | GB  |  | A |  | A |  | 2   
|COR  |  |                      |  | Trichloracelic Acid                 |  | 76-02-9             |  | N |  | P |  | S |  | C   |  | 365 |  | 0.5  |  | 1.00 |  | 1.00 |  | P    |  | GB  |  | A |  | A |  | 3   
|FL   |  |                      |  | Tilethytamine                       |  | 121-44-8            |  | N |  | P |  | L |  | CAF |  | 365 |  | 0.2  |  | 0.20 |  | 0.2  |  | G    |  | GB  |  | A |  | A |  | 2   
|FL   |  |                      |  | Tilethytamine                       |  | 121-44-8            |  | N |  | P |  | L |  | ACF |  | 365 |  | 0.1  |  | 0.1  |  | 0.1  |  | G    |  | GB  |  | A |  | A |  | 3   
|COR  |  |                      |  | Telfluoroacetic Acid                |  | 76-05-1             |  | N |  | P |  | L |  | A   |  | 365 |  | 0.1  |  | 0.5  |  | 0.1  |  | G    |  | GB  |  | A |  | A |  | 3   
|IRR  |  |                      |  | Tris Hyrdoxymethyl                  |  | 77-86-1             |  | N |  | P |  | S |  | C   |  | 365 |  | 2.2  |  | 2.2  |  | 2.2  |  | P    |  | PB  |  | A |  | A |  | 1   
|IRR  |  |                      |  | Trion-x-100                         |  | 9002-98-1           |  | N |  | M |  | L |  | C   |  | 365 |  | 0.25 |  | 0.50 |  | 0.25 |  | G    |  | GB  |  | A |  | A |  | 2   
|OHH  |  |                      |  | Trypan Blue Solution                |  | 72-57-1             |  | N |  | P |  | L |  | A/C |  | 365 |  | 0.2  |  | 0.1  |  | 0.1  |  | G    |  | PB  |  | A |  | A |  | 1   
|IRR  |  |                      |  | Tween                               |  | 9005-64-5           |  | N |  | M |  | L |  | C   |  | 365 |  | 0.2  |  | 0.20 |  | 0.1  |  | G    |  | GB  |  | A |  | A |  | 1   
|OHH  |  |                      |  | Urea                                |  | 57-13-6             |  | N |  | P |  | S |  | C   |  | 365 |  | 0.5  |  | 1.00 |  | 0.50 |  | P    |  | PB  |  | A |  | A |  | 1   

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EXHIBIT DTO LEASE AGREEMENT DATED JANUARY 22, 2002 BETWEEN THE  JOHN ARRILLAGA SURVIVOR'S TRUST AND THE RICHARD T. PEERY  SEPARATE PROPERTY TRUST, AS LANDLORD, AND
ABGENIX, INC., AS TENANT

HAZARDOUS MATERIALS REPORTS  PROVIDED TO TENANT

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