Exhibit 10.1



SEVENTH   AMENDMENT TO AND PARTIAL TERMINATION OF LEASE AGREEMENT THIS SEVENTH   AMENDMENT TO AND PARTIAL TERMINATION OF LEASE AGREEMENT (this "Seventh   Amendment") is entered into as of this 31 51 day of July, 2019   ("Execution Date") and made effective as of the 3151 day of July,   2019 (the "Effective Date"), by and between BMR-ROGERS STREET LLC,   a Delaware limited liability company ("Landlord") and MOMENTA   PHARMACEUTICALS, INC., a Delaware corporation ("Tenant"). RECITALS   A. WHEREAS, Landlord and Tenant are parties to that certain Lease dated as of   February 5, 20 13 (the "Original Lease"), as amended by that   certain First Amendment to Lease dated as of March 21 , 20 13, as further   amended by that certain Second Amendment to Lease dated as of May 24, 2013,   as further amended by that certain Third Amendment to Lease dated as of   December 30, 2015 (the "Third Amendment"), as further amended by   that certain Fourth Amendment to Lease dated as of July 24, 2017, as further   amended by that certain Fifth Amendment to Lease dated as of April 24, 2018,   as further amended by that certain Letter Agreemen t re: TI Allowance dated   November 15, 2017, and as further amended by that certain Six th A mendment   to and Partial Termination of Lease Agreement dated as of August 2, 2018 (the   "Six th Amendm ent") (collectively, and as the same may have been   further amended, amended and restated, supplemented or modified from time to   time, the "Existing Lease"), whereby Tenant leases certain premises   from Landlord comprising approximately 104,678 square feet of Rentable Area   (the "Ex isting Premises") of the bu ilding at 320 Bent Street in   Cambridge, Massachusetts (the "Bent Building"); and B. WHEREAS,   Landlord and Tenant desire to surrender approximately 89,218 square feet of   Rentable Area of the Existing Premises (the "Surrender Premises")   as shown on E x hibit A attached hereto and continue leasing approximately   15,460 square feet of Rentable Area of the Existing Premises located on the   basement and first (1 51 ) floor of the Bent Building (the "Remai n ing   Premises") as shown on Exhibit B attached hereto in accordance with the   following provisions and modify and amend the Existing Lease only in the   respects and on the conditions hereinafter stated. AGREEMENT NOW, THEREFORE,   La ndlord and Tenant, i n consideration of the mutual promises contained   herein and for other good and valuable consideration, the receipt and   sufficiency of which are hereby ackn owledged, and intending to be legally   bound, agree as follows: I. Definitions. For purposes of this Seventh   Amendment, capitalized terms shall have the meanings ascribed to them in the   Existing Lease unless otherwise defined herein. The Exist i ng Lease, as   amended by this Seventh Amendment, is referred to collectively herein as the   "Lease." From and after the Execution Date, the term   "Lease," as used in the Existing Lease, shall mean the E xisting   Lease, as amended by this Seventh Amendment. 2. Demising the Surrender   Premises. The Surrender Premises are physically demised from the Remaining   Premises. Tenant has either performed prior to the Execution Date 81()MED   JatrLEG AL APPROVED 


    




 










or s h a ll   perform prior to th e S urre nd e r Date (as indicated o n Ex hibit C attac h   ed hereto), at Te n a nt 's so l e cost a nd expe n se and in full acco rd a   n ce wi th the prov i s i o n s of the Ex i stin g Lease, including w ith o u   t limitat i o n , A rti c l e 17 of the O ri gi n a l Lease, th e work n   ecessa r y to se pa rate th e base building system co nn ectio n s, securit y   syste m s, te l /data and IT infrast ructure a nd systems, BMS panel s a nd   syste m s, a nd utility m ete rs ( in c ludin g HVA C s ubm ete rin g) se rv   in g each of th e Sur re nd er Premi ses a nd the Re mainin g Pre mi ses, and   to effectuate a n efficient se pa rat i o n of pre mi ses so th a t eac h of   the Su rre nd e r Premises a nd t h e Re m a inin g Premises m ay be l eased   ind e pe ndently of eac h ot h er, as m o re spec ifi ca ll y set fo rth o n   Ex hibit C attac h ed h e reto a nd m ade a part h ereof (co ll ective l y,   the "Demi s in g Work "). Landlord h e re b y ack n ow l edges that   the portion s of the Demi s ing Work performed prior to the Exec uti o n Date   as indi cated on Ex hibit C (th e "Co mpl eted Demising Work") ha ve   been performed to Landlord 's sat i sfact i on a nd verified by Landlord 's   third-party co n s ulta nt, a nd so l ong as the Completed De mi s in g Work   is in th e sa me co nditi o n o n th e S urre nd er Date as it was o n the   date it was verified b y Landl ord 's third­ part y co n s ul ta nt, Te n a n   t h as n o co ntinuin g ob li gatio n s vv ith respect thereto; provided , h   oweve r, th at n ot hin g in thi s Sec ti on s h a ll be dee m ed to re l   ease, wa iv e or m odify any of Tenant's s urrender ob li ga ti o n s und er   t he Lease ot h e r than those s pecifica ll y identified as Co mpl eted Dem   i s in g Work. 3. S urre nder Premises S urre nd e r Date. Notwit hsta ndin g   a n yt hin g in the Exist in g Lea se to the co ntrar y. Tena nt s h a ll co   mpl ete the Demi s ing Work a nd s urre nd e r the Surrender Pre mi ses to La   ndl o rd in broo m c l ea n co nditi o n , free of personal property (exce pt   as provided h e re in ) and ot h erw i se in the co nditi o n req uired und e   r the Lease ( i n c l ud i n g without I imitat i o n , th e prov i s i o n s   of Art i c l e 26 of the Original Lease), a nd wit h the Demis in g Work in   good wo rkin g o rd e r, n o l ater than the I ater of (i) .J u I y 3 1 , 20   1 9 a nd ( i i ) t h e Effective Date (su ch l ate r date, the "Surrende   r Dat e''). At l east ten ( I 0) da ys pri o r to t h e S urre nd er Date, Te   n ant s ha ll co ndu ct a s ite in s pec ti o n \•V ith Landlord . Te n ant's   fa i I ure to s urre nd e r the S urre nd e r Premi ses o n o r before the S   urre nd e r Date wil l res ult in Tenant being in h o ld over a nd s ubject   to t h e terms a nd co nditi o ns of Art i c l e 27 of the Exist in g Lease.   4. S urre nd er Premises Termination Fee. Within ten ( I 0) bus in ess days   after the Effective D ate, Te n a n t s h a ll pay to La ndl o rd , by wire   transfer in imm ed i ate l y ava il ab l e funds, a te rmin a ti o n fee wit   h res pec t to the Su rre nder Premi ses in a n a m o unt equ a l to Three   Million S i x t y-Fo ur Th o u sa nd N in e Hundred N in ety-Three and 40/   100 Do ll ars ($3,064,993.40). 5. Pa rtial Bent Lease Termination. Th e Lease   shall a utomat i ca ll y terminate w ith res pect to th e S urrend er   Premises effective as of II :59 p. m . Eastern time o n the S urre nd er Date   (t he ·' Pa r t i al Ben t Lease Te rmin at i o n"). I f Ten a n t h as   n ot f ull y sat i sfied a ll of its ob li gat i o ns set fo rth i n Sec ti o   n s?, l and1of thi s Agreement (co ll ective l y, the "S urrende r O bli   gat i o n s") by t h e S urre nd e r Date, the Partia l Bent Lease Te   rmin at i o n s h a ll n o n et h e l ess occ ur ( in c ludin g w ith o ut   limitat i o n t h e right of Land l o rd to re-take exc lus i ve possession   of the S urre nd er Pre mises) a nd Tena nt 's li abi lit y for any rema inin   g Surrender Obligations s h a ll s urvi ve the Partial Bent Lease Te rmin at   i o n. As of the Partial Bent Lease Te rmin at i o n , the Lease s h a ll be   fully a nd finally s urre ndered and terminated a nd s h a ll n o l onger be   of a n y force or effect so l e l y wit h respect to the S urre n der Premi   ses, ex cept fo r t h ose provision s that, by their exp ress term s, s urv i   ve the ex pira ti o n o r ea rli e r termin at i o n of the Lease, but the   Lease s h a ll re m a in in f ull fo rce a nd effect w ith respect to th e   Remaining Pre mi ses . 2 


    




 










6. Tenant Perso   nal Property. Notwithstanding anything in the Existing Lease or this Seventh   Amendment to the contrar y, Landlord acknow l edges and agrees that Tenant 's   personal pro pe rt y s pec ifica ll y li s ted on Exhibit D a ttached hereto   and made a pa1i h ereof ("Tenant Pe rso nal Pro perty") may remain   in th e Surrender Premises upon the Partial Bent Lease Termination , it being   understood and agreed that Tenant has executed a bill of sale and submitted   the sa me into escrow until the Effective Date, whereby the same has been   conveyed to Merck & Co. , In c. (th e "Pe rso n a l Pro pe1iy   Conveyance"). Landlord s hall have no liability to Tenant or o th e rvv   i se relatin g to the Personal Property or the Personal Prope1iy Conveyance.   Tenant shal l h ave n o li a bilit y to Landl o rd for any cla im s relating   to the Perso nal Prope1iy or the Personal Property Co n veya nce. 7. Rem a   ining Premi ses Ba se Rent. Notwith standing anything in the Ex isting Lease   to the co ntrar y. commencing o n the da y immediatel y after the Partial   Base Rent for the Re mainin g Pre mi ses s hall be as fo ll ows: Bent Lease   Termination , 3 Dates Sguue Feet of Base Rent per Monthly Base Annual Base   Rentable Area Sguare Foot of Rentable A1·ea Rent Rent Day afte r Partial Bent   Lease Termination-8/3 I /2 019 15,460 $84.00 $1 08,220. 00 $1 ,298,640.00* 9/   1 /2019-8/3 I /2020 1 5,460 $94.00 $121 , 103.33 $1,453,240.00 91 I /2020-8/3   I /202 I 15,460 $96.60 $124,453.00 $1 ,493,436.00 9/ 1 /2021-8/3 I /2022   15,460 $99.27 $127,892. 85 $1,534,714. 00 9/ I /2022 - 8/3 I /2023 1 5,460 $ 102 .02 $131 ,435 .77 $ 1 ,577,229.20 9/ 1 /2023-8/3 1 /2024 15,460 $104.86   $135,094.63 $1 ,621 ,1 35. 60 91 I /2024-8/3 I /2025 15 ,460 $ 107.78 $138,856.57   $1 ,666,278.80 9/ 1 /2025-8/3 I /2026 15 , 460 $110.79 $142,734.45 $1   ,712,813.40 9/ I /2026-2 /28/2027 1 5 ,460 $ 11 3.89 $ 146,728.28 $1 ,760,739   .40* 


    




 










*To be   pro-rated fo r pa rt i a l yea r 8. A m e nd ed Lease Prov i s i o n s afte r   Pa rti a l Be nt Lease Te rmin a ti o n . F ro m a nd afte r th e Pa r t i a   l Be nt Lease Te rmin a ti o n , th e Ex i s tin g Lease s h a ll be a m e nd   ed as fo ll ows: a. R e m a inin g Pre m ises O ri g in a l Lease s h a ll h   ereto. Th e term "Premi ses" as u sed in the Lease, s h a ll m ea n   a nd refe r to th e a nd s h a ll exc lu de the S urre nd er Premi ses. Ex   hibit B a ttac h ed to th e be d ee m ed d e l eted i n its entiret y a nd   repl aced w i t h Ex hibit B attac h ed b. T h e Re ntab l e A rea of th e   Pre mi ses s h a ll be ap prox im ate l y 1 5,460 square feet, s ubject to ad   j u st m e nt purs u a nt to th e te rm s of th e Lease. c. Te n a nt 's Pro   Rata S h a re of Be nt Buildin g s h a ll m ea n 7.92%. d . Te n a n t 's n o   n-exc lu s i ve li cen se to u se pa r k in g s paces in th e park in g fac   iliti es s h a ll be redu ced to twe l ve ( 1 2) spaces. In add i t i o n ,   Ten a nt s h a ll h ave th e ri ght to u se two (2) pa r k in g s paces a t t   h e sa m e ra tes a n d o n t h e sa m e te rm s a ppli ca bl e to s u ch twe   l ve (1 2) pa r k in g s paces, bu t s ubject to La ndl o rd 's ri g h t to   revo ke o ne o r both of s uc h s paces upo n at least t hirty (30) days n ot   i ce. e. Sect i o n 1 6.1 of th e Ori gin a l Lease s h a ll be m odifi ed by   d e l etin g th e seco nd se nte n ce t h e reof in its e ntiret y a nd re pl   acin g it w ith th e fo ll ow in g: "I f a n y s u c h utilit y i s n o   t sepa rate l y m ete red to Te n a nt, Te n a nt s h a ll pay Te n a nt 's S   h a re of a ll c h a rges of s u c h utilit y jo in t l y m etered w i t h o   th e r pre mi ses as pa rt of Te n a nt 's S h a re of O pe rat in g Ex pe   nses, o r, in th e a l te rn a ti ve, La n d l ord m ay m o nito r th e usage   of s u ch u t iliti es b y Te na nt thro u g h th e u se of o n e o r mo re s   u b m e te rs or c h eck m ete rs, a nd c h a rge Te n a n t w ith th e costs   of purc h as in g, insta llin g a nd mo n ito rin g s u c h m eter in g equi   p m e nt, as A dd iti o n a I Re nt, prov id ed th a t La n d l o rd s h a II   prov id e Te n a n t wi th at l east t h i rt y (30) days ' p r i o r n ot i   ce befo re ins ta llin g a n y s u c h m ete rin g equipm e nt a n d s h a ll   h ave reaso n a bl y de te rmin ed t h e re i s a bas i s fo r n eedin g to   sepa rate l y m e te r s u c h u t i I it y." Secti o n 16.10 of th e   Ori g in a l Lease s h a ll be m odifi ed b y addin g th e f. fo ll ow in g   afte r th e seco nd se n te n ce a nd befo re t h e third se nte n ce:   "Fo r c l a rit y, fro m a nd afte r t h e Surren der Date. (x) Te n a n   t's ri g h ts p urs u a nt to thi s Sect io n 1 6. 1 0 re l ate so l e l y to   th e ac id n e u t ra li zat i o n ta n k se r v in g th e Re m a inin g Pre   mi ses, (y) th e te rm ''Ac i d Ne u t ra li zat i o n Ta nk" s h a ll   refe r o nl y to th e ac id n eutra li zati o n ta nk serv in g th e Re m a   inin g Premi ses a nd l ocated in th e base m ent of th e Bent Buildin g, a n   d (z) Te na nt s h a ll h ave n o ri ghts o r o bli ga ti o n s to th e ex te   n t a ri s in g afte r th e S urre n de r Da te w ith res pect to th e ac id   n e utra li zati o n ta n k l ocated in t h e ba se m e n t po rt i on of t h   e S urre n de r Pre mi ses." g. Sect i o n ? 1. 9 of th e O ri g in a l   Lease s h a ll be m odi fied by de l et i n g th e seco n d se n te n ce t h   e reof in i ts e ntiret y a nd re pl ac in g it w ith th e fo ll ow in g:   "In th e exerc i se of s u c h co ntro l , La ndl o rd h as dete rmin ed   a nd Te n a nt agrees th at, durin g t h e Te rm , (a) Te n a nt s h a ll h   ave no ri gh t to a n y co n t ro I areas ex i s tin g o n t h e fi rst ( 1   51 ) fl oo r of t h e Be n t Buildin g as of th e Effec t ive Date of t h e   Seve nth A m e ndm e n t. ( b) to th e ex te n t Te n a nt requires o n e o r   m o re co ntro l a reas o n th e fi rst ( I 51 ) floo r a nd to th e exte nt   s u c h co n t ro l a reas a re avai l a bl e a nd n ot in u se b y o t h e r   te n a nts. Te n a nt s h a ll b uil d o ut in depe n den t, se l f-co nta in   ed co ntro l a reas to sa ti sfy th a t n eed 4 


    




 










in portions of   t h e firs t ( I s t) floor Premi ses, a nd (c) Tenant sh a ll hav e n o   right to a n y control a reas o n the second (2"cl) floor of the Bent   Building. '' h. Sect i o n 46 (Ge n e rato r) of the Original Lease s h a ll   be deleted in its e ntiret y and rep laced wit h the fo ll o·wi n g: "   'Ten a nt 's u se of the ge nerato rs in the Bent Building s h a ll be pe   rmitted as fo ll ows: (a) Te n a nt s ha ll n ot be e nti tied to u se   Generator # I o r Ge n erato r #2 identified in Ex hibit R of the Original   Lease, a nd (b) Tenant s h a ll be entitl ed to utili ze n o m o re th a n 1   5 k il owa tts of the 450-kil owa tt capac it y of Generator #3 id e ntifi ed   in Exhibit R of the Or i g in a l Lease." i. Sect i o n 8 of th e Third   A m e ndm e n t (R i ght of First Offer at Bent Buildin g) s h a ll be de l e   ted in its e ntirety. 9. Reservation of Ri g hts. Notw ith sta ndin g the   Part i a l Bent Lease Termination , Landlord does n ot waive, a nd h ereby   reserves, a n y ri ghts and /o r re m ed i es that Landlord m ay hav e und er   the Lease o r at l aw o r in equit y ar i s in g fro m any un c ured default   (w h eth e r o r n ot n ot i ce has bee n g i ven) of Te n a nt und e r th e   Lease w i t h res pect to the S urre nd er Premi ses ex i st in g as of the   Pa rt i a l Be nt Lea se Ter min a ti o n . I 0.R e l ease o f Right s a nd   Obligation s. As of the Pa rti a l Bent Lease Termin a ti o n, (a) Te n a nt   f ull y a n d un co n d i t i o n a ll y re l eases, ca n ce l s, a nnul s,   resci nd s, di sc h a rges, disclaims, wa ives :.1nd re l eases a n y a nd a   ll ri g hts a nd be n efi ts Tenant ma y h ave und er the Lease w ith respect   to t h e S urre n de r Pre mi ses a ri s in g f ro m a nd after the Pa rti a   l Be nt Lease Termination , a nd (b) Tenant s h a ll h ave n o f urt h er o   bli gat i o n s w ith respect to the Surrender Premises, exce pt for those   provis i o n s that. b y th e ir exp ress te rm s, s urv ive the exp irati o   n o r earlier termination of the Lease. I I. Q uitc l a im. To th e exte nt,   i f a n y, t h at th e Lease gi ves Tenant a n y ri ght, title or interes t   in o r to t h e S urre nd e r Premises, Tenant does h ereby re mi se, re l   ease a nd quitc l a im to Landlo rd s uch ri gh t, tit l e o r inte rest in o   r to t h e Su rrende r Premi ses as of the Part i a l Bent Lease Te rmin at i   o n a nd s h a ll execute a nd de l ive r to La ndl o rd any documentation   reaso n ab l y requ ested by Landlord to effect o r d oc um ent such re mi   se, release a nd quitc l a im . 1 2 . No Tra n sfe r. As of t h e Exec uti o   n Date, Te n a nt rep rese n ts t h a t it h as n ot m ade (a nd cove n a n   ts t h at i t s h a ll n o t m ake prior to t h e Pa t1i a l Bent Lea se Te   rmin atio n ) any ass ignment. s ubl ease. tra n sfe r. conveyance o r o ther   d i spos i t i o n of the Lease o r its inte rest therein w i th res pec t to   th e Su r re nd e r Pre mi ses. n o r m ade o r e n te red into (a nd cove n   a nts that it s h a ll n ot make or e nte r in to pr i o r to th e Pat1ial   Bent Lease Te rmin ati o n ) a n y ag ree m e nt that wo uld result in any m   ec hani c's l i e n o r ot h e r c l ai m , demand o bligation , li abi lit   y, act i o n o r ca use of acti o n a ri s ing f ro m o r w ith res pect to   the Lease o r the S urre nd e r Premises th a t w ill n o t be tim e l y paid   . 1 3. At t o rn eys ' Fees. Exce pt as o therwi se ex press l y set fo rth   in t hi s Seventh A m e ndment, eac h part y s h a ll pay its ow n costs a nd   expenses incurred in co nn ecti o n w ith this Sevent h A m e ndm e n t and s   u c h pa rt y's performance und e r thi s Seventh A m e ndm e nt, prov id ed   , t h at if e ith e r party co mmences a n acti o n , proceeding, demand , c   l a im , ac ti o n, ca use of acti o n o r s uit aga in st th e ot h e r   party a ri s in g o ut of o r ·in co nn ectio n w ith thi s Sevent h A m e   ndm e nt, then th e s ubsta nti a ll y preva ilin g pa rt y s h a ll be re   imbursed b y the ot h er pat1y fo r a ll reaso n a bl e costs a nd ex pe n   ses. in c l udi n g reaso n ab l e a ttorne ys' fees a nd ex penses, in c   urred by the s ubsta nti a ll y 5 


    




 










preva ilin g   part y in s u c h action , proceedin g, demand , c l a im , acti o n, ca u se   of acti o n o r s uit, and in a n y appea l in co nn ect i o n th e rew ith (   rega rdl ess of whether th e applicable action, proceedin g, demand , c l a   im , act i o n , ca u se of action , suit o r ap pea l i s vo lunta ril y   withdrawn or dismissed). Thi s Secti o n 1 3 s h a ll n ot be d ee med to a m   e nd , m odi fy o r limit Section 45.4 of th e Lease. Broker. Eac h party   represents a nd wa rra nts th a t it h as n o t d ea lt w ith a ny broke r 1   4. o r age n t in the n egotia ti o n for o r th e o bta inin g of this Seve   nth Amendment ot h er than CBRE I New E n g l a nd ("B roke r"), a   nd ag rees to re imburse, ind e mnify, save, d efe nd (at th e indemnifi ed   party 's o pti o n a nd w ith co unse l reaso n a bl y acceptabl e to th e   ind e mnifi ed pa rt y, a t the i nde mn i fyi n g pa rt y 's so l e cost a   nd expe nse) and h o ld h a rm less the o th er party for, from a nd aga in   st a n y a nd a ll cost o r li ab ilit y for co mpe n sa tion c l a im ed b y   a n y ot h e r broke r o r agent e m p l oyed o r e n gaged b y i t o r c l a   imin g to h ave been e mpl oyed o r e n gaged by it. Broke r i s n o t e   ntitl ed to a n y fee o r co mmi ssio n in connection w ith this Seventh   Amendment. 1 5. No Default. As of th e Exec uti o n Da te, eac h of Landlord   a nd Tenant re prese nt, warra n t a nd cove n a n t to th e o ther that, to   th e bes t of its knowledge, La ndl o rd a nd Tenant a re n ot in default of   a n y of their res pect i ve o bli gat i o ns und e r th e Existing Lease and   n o eve nt h as occ urred that, vv ith th e passage of time o r the g i v in   g of n ot i ce (o r both) wo uld co n st itute a default b y e ith e r Landl   o rd o r Te n ant thereunder. Not i ces. Tenant co nfirm s that, n o t w   ithsta ndin g a n yt hin g in the Lease to th e 16. co ntra r y, n o ti ces   delivered to Tenant purs u a nt to the Lease should be se nt to: Mo m e n ta   Pharmaceuticals, In c. 30 I Binne y St reet Ca mbrid ge, Massac husetts 02141   A ttn: A l eja n d ra Ca r vaja l , C hief Legal Office r E m ai I: acarva j   a l @ momentap h arma .co m W ith cop i es to : M o m e nta Pharm ace uti ca   l s, Inc. 30 I Binn ey St reet Ca mbridge, Massac hu setts 02141 Attn : C hi   ef F in a n c i a l Officer a nd Mo m enta Ph ar m ace uti ca l s, Inc. 30 I   Binne y St reet Ca mbrid ge, Massac hu se tts 02141 Att n: Mo m enta S it e   Se r vices S u ccesso rs a nd Ass i g n s. Eac h of the cove n a nts, co   nditi o ns a nd ag ree m e nts a ppl y to a nd be 17. co nta ined in thi s   Seve n th A m e ndm e nt s h a ll inure to the be nefit of a nd s h a ll b in   d in g upo n thG panics h e reto a nd th e ir res pec ti ve h e irs, l   egatees, d ev i sees, exec uto rs, 6 


    




 










adm ini s   trators a nd per mitted s uccesso rs, ass i gn s and s ublessees. Nothing in   this section s hall in any \Nay alter the provisions of the Lea se   restricting assignment and subletting. Effect of Agreement. Except as   modified by this Seventh Amendment, the 18. Ex istin g Lease a nd all the   cove nants, agreements, terms, provisions and conditions thereof shall re   main in f ull force a nd effect and a re here b y ratified and affirmed. In the   event of any conflict between the ter m s co ntain ed in thi s Seventh   Amendment and the Existing Lease, the terms h e re in co ntained s hall s   upersede and control the ob ligati o ns and liabilities of the parties. 1 9.   Authority.Tenant guarantees, warrants and represents that the executi o n a   nd co n s ummati o n of this Seventh Amendment have been duly authorized by   all appropriate co mpa n y act i o n , and the individual or individual s   signing this Seventh Amendment hav e the power, authorit y and lega l   capacity to s ign this Seventh Amendment on behalf of and to bind all   entities, cor po ration s, partnerships, limited liability companies, joint   venturers or other organ i za ti o ns and entities on whose behalf such   individual or individuals have signed. 20. Voluntary Agreement. The pat1ies   have read this Seventh Amendment and the mutual re l eases contained in it,   and hav e freely and voluntarily entered into this Seventh Am e ndment. 2 1   .Waiver of Jury Trial. To the extent permitted by applicable laws, the   parties 'Naiv e tri a l b y jur y in a n y action , proceeding or   counterclaim brought by the other party hereto re l ated t o m atte rs a ri s   ing o ut of or in any way connected with this Seventh Amendment, Tenant 's u   se o r occ upa n cy of the Pre mi ses o r any claim of injur y or damage re   lated to this Seventh A m e ndm e nt o r th e Premi ses. This Section 2 1 s   hall n ot be deemed to amend , modify o r limit Secti o n 45.18 of the Lease.   22 . Co unt e rpa rt s; Facsimile and PDF Signatures. Thi s Seventh Amendment   may be e x ecuted in one or more counterparts, each of which , when take n   together, shall constitute one and the same document. A facsimile o r   portable document format (PDF) signature on this Seventh Amendment shall be   eq uivalent to, and have the same force and effect as, an original s i gnat   ure. [REMArNDER OF THIS PAGE INTENTIONALLY LEFT BLANK] 7 


    




 










fN WITNESS   WHEREOF, the parties have executed this Seventh sealed Massachusetts   instrument as of the day hereinabove first written. Amendment as a LANDLORD:   BMR-ROGERS STREET LLC, a Delaware limited liability company By:   ....3.....-----:----------Name: W_ill_i a_m K=a:..:..:n=e _ Title:   .=EV..:...:....P-=E=-=a:.::.st.:....C:::..o:..:a::.:s:..:..t-=&:....;U:::..;K:...!...:..:M.:.::a::.:.;rk:.:..:e:..::ts=-TENANT:   MOMENTA PHARMACEUTICALS, INC., a Delaware corporation By: _ Name: _ Title: _ 


    




 










fN WITNESS   WHEREOF, the parties have executed this Seventh sealed Massachusetts   instrument as of the day hereinabove first written. Amendment as a LANDLORD:   BMR-ROGERS STREET LLC, a Delaware limited liabi li ty company By: _ Name: _   Ti tle: _ TENANT: MOMENTA PHARMACEUTICALS, INC., a Delaware corporation --